helix-commits mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From ol...@apache.org
Subject svn commit: r1406467 [16/19] - in /incubator/helix/site-content: ./ apidocs/assets/ apidocs/reference/ apidocs/reference/org/apache/helix/ apidocs/reference/org/apache/helix/examples/ apidocs/reference/org/apache/helix/manager/file/ apidocs/reference/o...
Date Wed, 07 Nov 2012 05:11:34 GMT
Modified: incubator/helix/site-content/xref/org/apache/helix/manager/zk/ZKHelixAdmin.html
URL: http://svn.apache.org/viewvc/incubator/helix/site-content/xref/org/apache/helix/manager/zk/ZKHelixAdmin.html?rev=1406467&r1=1406466&r2=1406467&view=diff
==============================================================================
--- incubator/helix/site-content/xref/org/apache/helix/manager/zk/ZKHelixAdmin.html (original)
+++ incubator/helix/site-content/xref/org/apache/helix/manager/zk/ZKHelixAdmin.html Wed Nov  7 05:11:27 2012
@@ -44,1246 +44,1266 @@
 <a class="jxr_linenumber" name="34" href="#34">34</a>  <strong class="jxr_keyword">import</strong> java.util.Set;
 <a class="jxr_linenumber" name="35" href="#35">35</a>  <strong class="jxr_keyword">import</strong> java.util.TreeMap;
 <a class="jxr_linenumber" name="36" href="#36">36</a>  <strong class="jxr_keyword">import</strong> java.util.UUID;
-<a class="jxr_linenumber" name="37" href="#37">37</a>  
-<a class="jxr_linenumber" name="38" href="#38">38</a>  <strong class="jxr_keyword">import</strong> org.I0Itec.zkclient.DataUpdater;
-<a class="jxr_linenumber" name="39" href="#39">39</a>  <strong class="jxr_keyword">import</strong> org.I0Itec.zkclient.exception.ZkNoNodeException;
-<a class="jxr_linenumber" name="40" href="#40">40</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.AccessOption;
-<a class="jxr_linenumber" name="41" href="#41">41</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.ConfigAccessor;
-<a class="jxr_linenumber" name="42" href="#42">42</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.ConfigScope;
-<a class="jxr_linenumber" name="43" href="#43">43</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.HelixAdmin;
-<a class="jxr_linenumber" name="44" href="#44">44</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.HelixConstants;
-<a class="jxr_linenumber" name="45" href="#45">45</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.HelixDataAccessor;
-<a class="jxr_linenumber" name="46" href="#46">46</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.HelixException;
-<a class="jxr_linenumber" name="47" href="#47">47</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.PropertyKey;
-<a class="jxr_linenumber" name="48" href="#48">48</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.PropertyPathConfig;
-<a class="jxr_linenumber" name="49" href="#49">49</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.PropertyType;
-<a class="jxr_linenumber" name="50" href="#50">50</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.ZNRecord;
-<a class="jxr_linenumber" name="51" href="#51">51</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.ConfigScope.ConfigScopeProperty;
-<a class="jxr_linenumber" name="52" href="#52">52</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.PropertyKey.Builder;
-<a class="jxr_linenumber" name="53" href="#53">53</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.alerts.AlertsHolder;
-<a class="jxr_linenumber" name="54" href="#54">54</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.alerts.StatsHolder;
-<a class="jxr_linenumber" name="55" href="#55">55</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.model.Alerts;
-<a class="jxr_linenumber" name="56" href="#56">56</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.model.CurrentState;
-<a class="jxr_linenumber" name="57" href="#57">57</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.model.ExternalView;
-<a class="jxr_linenumber" name="58" href="#58">58</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.model.IdealState;
-<a class="jxr_linenumber" name="59" href="#59">59</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.model.InstanceConfig;
-<a class="jxr_linenumber" name="60" href="#60">60</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.model.LiveInstance;
-<a class="jxr_linenumber" name="61" href="#61">61</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.model.Message;
-<a class="jxr_linenumber" name="62" href="#62">62</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.model.PauseSignal;
-<a class="jxr_linenumber" name="63" href="#63">63</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.model.PersistentStats;
-<a class="jxr_linenumber" name="64" href="#64">64</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.model.StateModelDefinition;
-<a class="jxr_linenumber" name="65" href="#65">65</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.model.ClusterConstraints.ConstraintAttribute;
-<a class="jxr_linenumber" name="66" href="#66">66</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.model.ClusterConstraints.ConstraintType;
-<a class="jxr_linenumber" name="67" href="#67">67</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.model.IdealState.IdealStateModeProperty;
-<a class="jxr_linenumber" name="68" href="#68">68</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.model.InstanceConfig.InstanceConfigProperty;
-<a class="jxr_linenumber" name="69" href="#69">69</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.model.Message.MessageState;
-<a class="jxr_linenumber" name="70" href="#70">70</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.model.Message.MessageType;
-<a class="jxr_linenumber" name="71" href="#71">71</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.tools.IdealStateCalculatorForStorageNode;
-<a class="jxr_linenumber" name="72" href="#72">72</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.util.HelixUtil;
-<a class="jxr_linenumber" name="73" href="#73">73</a>  <strong class="jxr_keyword">import</strong> org.apache.log4j.Logger;
-<a class="jxr_linenumber" name="74" href="#74">74</a>  
+<a class="jxr_linenumber" name="37" href="#37">37</a>  <strong class="jxr_keyword">import</strong> java.util.concurrent.TimeUnit;
+<a class="jxr_linenumber" name="38" href="#38">38</a>  
+<a class="jxr_linenumber" name="39" href="#39">39</a>  <strong class="jxr_keyword">import</strong> org.I0Itec.zkclient.DataUpdater;
+<a class="jxr_linenumber" name="40" href="#40">40</a>  <strong class="jxr_keyword">import</strong> org.I0Itec.zkclient.exception.ZkNoNodeException;
+<a class="jxr_linenumber" name="41" href="#41">41</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.AccessOption;
+<a class="jxr_linenumber" name="42" href="#42">42</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.ConfigAccessor;
+<a class="jxr_linenumber" name="43" href="#43">43</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.ConfigScope;
+<a class="jxr_linenumber" name="44" href="#44">44</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.HelixAdmin;
+<a class="jxr_linenumber" name="45" href="#45">45</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.HelixConstants;
+<a class="jxr_linenumber" name="46" href="#46">46</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.HelixDataAccessor;
+<a class="jxr_linenumber" name="47" href="#47">47</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.HelixException;
+<a class="jxr_linenumber" name="48" href="#48">48</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.PropertyKey;
+<a class="jxr_linenumber" name="49" href="#49">49</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.PropertyPathConfig;
+<a class="jxr_linenumber" name="50" href="#50">50</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.PropertyType;
+<a class="jxr_linenumber" name="51" href="#51">51</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.ZNRecord;
+<a class="jxr_linenumber" name="52" href="#52">52</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.ConfigScope.ConfigScopeProperty;
+<a class="jxr_linenumber" name="53" href="#53">53</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.PropertyKey.Builder;
+<a class="jxr_linenumber" name="54" href="#54">54</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.alerts.AlertsHolder;
+<a class="jxr_linenumber" name="55" href="#55">55</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.alerts.StatsHolder;
+<a class="jxr_linenumber" name="56" href="#56">56</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.model.Alerts;
+<a class="jxr_linenumber" name="57" href="#57">57</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.model.CurrentState;
+<a class="jxr_linenumber" name="58" href="#58">58</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.model.ExternalView;
+<a class="jxr_linenumber" name="59" href="#59">59</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.model.IdealState;
+<a class="jxr_linenumber" name="60" href="#60">60</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.model.InstanceConfig;
+<a class="jxr_linenumber" name="61" href="#61">61</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.model.LiveInstance;
+<a class="jxr_linenumber" name="62" href="#62">62</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.model.Message;
+<a class="jxr_linenumber" name="63" href="#63">63</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.model.PauseSignal;
+<a class="jxr_linenumber" name="64" href="#64">64</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.model.PersistentStats;
+<a class="jxr_linenumber" name="65" href="#65">65</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.model.StateModelDefinition;
+<a class="jxr_linenumber" name="66" href="#66">66</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.model.ClusterConstraints.ConstraintAttribute;
+<a class="jxr_linenumber" name="67" href="#67">67</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.model.ClusterConstraints.ConstraintType;
+<a class="jxr_linenumber" name="68" href="#68">68</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.model.IdealState.IdealStateModeProperty;
+<a class="jxr_linenumber" name="69" href="#69">69</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.model.InstanceConfig.InstanceConfigProperty;
+<a class="jxr_linenumber" name="70" href="#70">70</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.model.Message.MessageState;
+<a class="jxr_linenumber" name="71" href="#71">71</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.model.Message.MessageType;
+<a class="jxr_linenumber" name="72" href="#72">72</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.tools.IdealStateCalculatorForStorageNode;
+<a class="jxr_linenumber" name="73" href="#73">73</a>  <strong class="jxr_keyword">import</strong> org.apache.helix.util.HelixUtil;
+<a class="jxr_linenumber" name="74" href="#74">74</a>  <strong class="jxr_keyword">import</strong> org.apache.log4j.Logger;
 <a class="jxr_linenumber" name="75" href="#75">75</a>  
-<a class="jxr_linenumber" name="76" href="#76">76</a>  <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../../org/apache/helix/manager/zk/ZKHelixAdmin.html">ZKHelixAdmin</a> <strong class="jxr_keyword">implements</strong> <a href="../../../../../org/apache/helix/HelixAdmin.html">HelixAdmin</a>
-<a class="jxr_linenumber" name="77" href="#77">77</a>  {
-<a class="jxr_linenumber" name="78" href="#78">78</a>  
-<a class="jxr_linenumber" name="79" href="#79">79</a>    <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <a href="../../../../../org/apache/helix/manager/zk/ZkClient.html">ZkClient</a> _zkClient;
-<a class="jxr_linenumber" name="80" href="#80">80</a>    <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <a href="../../../../../org/apache/helix/ConfigAccessor.html">ConfigAccessor</a> _configAccessor;
-<a class="jxr_linenumber" name="81" href="#81">81</a>  
-<a class="jxr_linenumber" name="82" href="#82">82</a>    <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> Logger logger = Logger.getLogger(ZKHelixAdmin.<strong class="jxr_keyword">class</strong>);
-<a class="jxr_linenumber" name="83" href="#83">83</a>  
-<a class="jxr_linenumber" name="84" href="#84">84</a>    <strong class="jxr_keyword">public</strong> <a href="../../../../../org/apache/helix/manager/zk/ZKHelixAdmin.html">ZKHelixAdmin</a>(<a href="../../../../../org/apache/helix/manager/zk/ZkClient.html">ZkClient</a> zkClient)
-<a class="jxr_linenumber" name="85" href="#85">85</a>    {
-<a class="jxr_linenumber" name="86" href="#86">86</a>      _zkClient = zkClient;
-<a class="jxr_linenumber" name="87" href="#87">87</a>      _configAccessor = <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/helix/ConfigAccessor.html">ConfigAccessor</a>(zkClient);
-<a class="jxr_linenumber" name="88" href="#88">88</a>    }
-<a class="jxr_linenumber" name="89" href="#89">89</a>  
-<a class="jxr_linenumber" name="90" href="#90">90</a>    @Override
-<a class="jxr_linenumber" name="91" href="#91">91</a>    <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> addInstance(String clusterName, <a href="../../../../../org/apache/helix/model/InstanceConfig.html">InstanceConfig</a> instanceConfig)
+<a class="jxr_linenumber" name="76" href="#76">76</a>  
+<a class="jxr_linenumber" name="77" href="#77">77</a>  <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../../org/apache/helix/manager/zk/ZKHelixAdmin.html">ZKHelixAdmin</a> <strong class="jxr_keyword">implements</strong> <a href="../../../../../org/apache/helix/HelixAdmin.html">HelixAdmin</a>
+<a class="jxr_linenumber" name="78" href="#78">78</a>  {
+<a class="jxr_linenumber" name="79" href="#79">79</a>  
+<a class="jxr_linenumber" name="80" href="#80">80</a>    <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <a href="../../../../../org/apache/helix/manager/zk/ZkClient.html">ZkClient</a> _zkClient;
+<a class="jxr_linenumber" name="81" href="#81">81</a>    <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <a href="../../../../../org/apache/helix/ConfigAccessor.html">ConfigAccessor</a> _configAccessor;
+<a class="jxr_linenumber" name="82" href="#82">82</a>  
+<a class="jxr_linenumber" name="83" href="#83">83</a>    <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> Logger logger = Logger.getLogger(ZKHelixAdmin.<strong class="jxr_keyword">class</strong>);
+<a class="jxr_linenumber" name="84" href="#84">84</a>  
+<a class="jxr_linenumber" name="85" href="#85">85</a>    <strong class="jxr_keyword">public</strong> <a href="../../../../../org/apache/helix/manager/zk/ZKHelixAdmin.html">ZKHelixAdmin</a>(<a href="../../../../../org/apache/helix/manager/zk/ZkClient.html">ZkClient</a> zkClient)
+<a class="jxr_linenumber" name="86" href="#86">86</a>    {
+<a class="jxr_linenumber" name="87" href="#87">87</a>      _zkClient = zkClient;
+<a class="jxr_linenumber" name="88" href="#88">88</a>      _configAccessor = <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/helix/ConfigAccessor.html">ConfigAccessor</a>(zkClient);
+<a class="jxr_linenumber" name="89" href="#89">89</a>    }
+<a class="jxr_linenumber" name="90" href="#90">90</a>  
+<a class="jxr_linenumber" name="91" href="#91">91</a>    <strong class="jxr_keyword">public</strong> <a href="../../../../../org/apache/helix/manager/zk/ZKHelixAdmin.html">ZKHelixAdmin</a>(String zkAddress)
 <a class="jxr_linenumber" name="92" href="#92">92</a>    {
-<a class="jxr_linenumber" name="93" href="#93">93</a>      <strong class="jxr_keyword">if</strong> (!ZKUtil.isClusterSetup(clusterName, _zkClient))
-<a class="jxr_linenumber" name="94" href="#94">94</a>      {
-<a class="jxr_linenumber" name="95" href="#95">95</a>        <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/helix/HelixException.html">HelixException</a>(<span class="jxr_string">"cluster "</span> + clusterName + <span class="jxr_string">" is not setup yet"</span>);
-<a class="jxr_linenumber" name="96" href="#96">96</a>      }
-<a class="jxr_linenumber" name="97" href="#97">97</a>      String instanceConfigsPath =
-<a class="jxr_linenumber" name="98" href="#98">98</a>          PropertyPathConfig.getPath(PropertyType.CONFIGS,
-<a class="jxr_linenumber" name="99" href="#99">99</a>                                     clusterName,
-<a class="jxr_linenumber" name="100" href="#100">100</a>                                    ConfigScopeProperty.PARTICIPANT.toString());
-<a class="jxr_linenumber" name="101" href="#101">101</a>     String nodeId = instanceConfig.getId();
-<a class="jxr_linenumber" name="102" href="#102">102</a>     String instanceConfigPath = instanceConfigsPath + <span class="jxr_string">"/"</span> + nodeId;
-<a class="jxr_linenumber" name="103" href="#103">103</a> 
-<a class="jxr_linenumber" name="104" href="#104">104</a>     <strong class="jxr_keyword">if</strong> (_zkClient.exists(instanceConfigPath))
-<a class="jxr_linenumber" name="105" href="#105">105</a>     {
-<a class="jxr_linenumber" name="106" href="#106">106</a>       <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/helix/HelixException.html">HelixException</a>(<span class="jxr_string">"Node "</span> + nodeId + <span class="jxr_string">" already exists in cluster "</span>
-<a class="jxr_linenumber" name="107" href="#107">107</a>           + clusterName);
-<a class="jxr_linenumber" name="108" href="#108">108</a>     }
-<a class="jxr_linenumber" name="109" href="#109">109</a> 
-<a class="jxr_linenumber" name="110" href="#110">110</a>     ZKUtil.createChildren(_zkClient, instanceConfigsPath, instanceConfig.getRecord());
-<a class="jxr_linenumber" name="111" href="#111">111</a> 
-<a class="jxr_linenumber" name="112" href="#112">112</a>     _zkClient.createPersistent(HelixUtil.getMessagePath(clusterName, nodeId), <strong class="jxr_keyword">true</strong>);
-<a class="jxr_linenumber" name="113" href="#113">113</a>     _zkClient.createPersistent(HelixUtil.getCurrentStateBasePath(clusterName, nodeId),
-<a class="jxr_linenumber" name="114" href="#114">114</a>                                <strong class="jxr_keyword">true</strong>);
-<a class="jxr_linenumber" name="115" href="#115">115</a>     _zkClient.createPersistent(HelixUtil.getErrorsPath(clusterName, nodeId), <strong class="jxr_keyword">true</strong>);
-<a class="jxr_linenumber" name="116" href="#116">116</a>     _zkClient.createPersistent(HelixUtil.getStatusUpdatesPath(clusterName, nodeId), <strong class="jxr_keyword">true</strong>);
-<a class="jxr_linenumber" name="117" href="#117">117</a>   }
+<a class="jxr_linenumber" name="93" href="#93">93</a>      _zkClient = <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/helix/manager/zk/ZkClient.html">ZkClient</a>(zkAddress);
+<a class="jxr_linenumber" name="94" href="#94">94</a>      _zkClient.setZkSerializer(<strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/helix/manager/zk/ZNRecordSerializer.html">ZNRecordSerializer</a>());
+<a class="jxr_linenumber" name="95" href="#95">95</a>      _zkClient.waitUntilConnected(30, TimeUnit.SECONDS);
+<a class="jxr_linenumber" name="96" href="#96">96</a>      _configAccessor = <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/helix/ConfigAccessor.html">ConfigAccessor</a>(_zkClient);
+<a class="jxr_linenumber" name="97" href="#97">97</a>    }
+<a class="jxr_linenumber" name="98" href="#98">98</a>    
+<a class="jxr_linenumber" name="99" href="#99">99</a>    @Override
+<a class="jxr_linenumber" name="100" href="#100">100</a>   <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> addInstance(String clusterName, <a href="../../../../../org/apache/helix/model/InstanceConfig.html">InstanceConfig</a> instanceConfig)
+<a class="jxr_linenumber" name="101" href="#101">101</a>   {
+<a class="jxr_linenumber" name="102" href="#102">102</a>     <strong class="jxr_keyword">if</strong> (!ZKUtil.isClusterSetup(clusterName, _zkClient))
+<a class="jxr_linenumber" name="103" href="#103">103</a>     {
+<a class="jxr_linenumber" name="104" href="#104">104</a>       <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/helix/HelixException.html">HelixException</a>(<span class="jxr_string">"cluster "</span> + clusterName + <span class="jxr_string">" is not setup yet"</span>);
+<a class="jxr_linenumber" name="105" href="#105">105</a>     }
+<a class="jxr_linenumber" name="106" href="#106">106</a>     String instanceConfigsPath =
+<a class="jxr_linenumber" name="107" href="#107">107</a>         PropertyPathConfig.getPath(PropertyType.CONFIGS,
+<a class="jxr_linenumber" name="108" href="#108">108</a>                                    clusterName,
+<a class="jxr_linenumber" name="109" href="#109">109</a>                                    ConfigScopeProperty.PARTICIPANT.toString());
+<a class="jxr_linenumber" name="110" href="#110">110</a>     String nodeId = instanceConfig.getId();
+<a class="jxr_linenumber" name="111" href="#111">111</a>     String instanceConfigPath = instanceConfigsPath + <span class="jxr_string">"/"</span> + nodeId;
+<a class="jxr_linenumber" name="112" href="#112">112</a> 
+<a class="jxr_linenumber" name="113" href="#113">113</a>     <strong class="jxr_keyword">if</strong> (_zkClient.exists(instanceConfigPath))
+<a class="jxr_linenumber" name="114" href="#114">114</a>     {
+<a class="jxr_linenumber" name="115" href="#115">115</a>       <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/helix/HelixException.html">HelixException</a>(<span class="jxr_string">"Node "</span> + nodeId + <span class="jxr_string">" already exists in cluster "</span>
+<a class="jxr_linenumber" name="116" href="#116">116</a>           + clusterName);
+<a class="jxr_linenumber" name="117" href="#117">117</a>     }
 <a class="jxr_linenumber" name="118" href="#118">118</a> 
-<a class="jxr_linenumber" name="119" href="#119">119</a>   @Override
-<a class="jxr_linenumber" name="120" href="#120">120</a>   <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> dropInstance(String clusterName, <a href="../../../../../org/apache/helix/model/InstanceConfig.html">InstanceConfig</a> instanceConfig)
-<a class="jxr_linenumber" name="121" href="#121">121</a>   {
-<a class="jxr_linenumber" name="122" href="#122">122</a>     <em class="jxr_comment">// String instanceConfigsPath = HelixUtil.getConfigPath(clusterName);</em>
-<a class="jxr_linenumber" name="123" href="#123">123</a>     String instanceConfigsPath =
-<a class="jxr_linenumber" name="124" href="#124">124</a>         PropertyPathConfig.getPath(PropertyType.CONFIGS,
-<a class="jxr_linenumber" name="125" href="#125">125</a>                                    clusterName,
-<a class="jxr_linenumber" name="126" href="#126">126</a>                                    ConfigScopeProperty.PARTICIPANT.toString());
-<a class="jxr_linenumber" name="127" href="#127">127</a>     String nodeId = instanceConfig.getId();
-<a class="jxr_linenumber" name="128" href="#128">128</a>     String instanceConfigPath = instanceConfigsPath + <span class="jxr_string">"/"</span> + nodeId;
-<a class="jxr_linenumber" name="129" href="#129">129</a>     String instancePath = HelixUtil.getInstancePath(clusterName, nodeId);
-<a class="jxr_linenumber" name="130" href="#130">130</a> 
-<a class="jxr_linenumber" name="131" href="#131">131</a>     <strong class="jxr_keyword">if</strong> (!_zkClient.exists(instanceConfigPath))
-<a class="jxr_linenumber" name="132" href="#132">132</a>     {
-<a class="jxr_linenumber" name="133" href="#133">133</a>       <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/helix/HelixException.html">HelixException</a>(<span class="jxr_string">"Node "</span> + nodeId
-<a class="jxr_linenumber" name="134" href="#134">134</a>           + <span class="jxr_string">" does not exist in config for cluster "</span> + clusterName);
-<a class="jxr_linenumber" name="135" href="#135">135</a>     }
-<a class="jxr_linenumber" name="136" href="#136">136</a> 
-<a class="jxr_linenumber" name="137" href="#137">137</a>     <strong class="jxr_keyword">if</strong> (!_zkClient.exists(instancePath))
-<a class="jxr_linenumber" name="138" href="#138">138</a>     {
-<a class="jxr_linenumber" name="139" href="#139">139</a>       <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/helix/HelixException.html">HelixException</a>(<span class="jxr_string">"Node "</span> + nodeId
-<a class="jxr_linenumber" name="140" href="#140">140</a>           + <span class="jxr_string">" does not exist in instances for cluster "</span> + clusterName);
-<a class="jxr_linenumber" name="141" href="#141">141</a>     }
-<a class="jxr_linenumber" name="142" href="#142">142</a> 
-<a class="jxr_linenumber" name="143" href="#143">143</a>     <em class="jxr_comment">// delete config path</em>
-<a class="jxr_linenumber" name="144" href="#144">144</a>     ZKUtil.dropChildren(_zkClient, instanceConfigsPath, instanceConfig.getRecord());
+<a class="jxr_linenumber" name="119" href="#119">119</a>     ZKUtil.createChildren(_zkClient, instanceConfigsPath, instanceConfig.getRecord());
+<a class="jxr_linenumber" name="120" href="#120">120</a> 
+<a class="jxr_linenumber" name="121" href="#121">121</a>     _zkClient.createPersistent(HelixUtil.getMessagePath(clusterName, nodeId), <strong class="jxr_keyword">true</strong>);
+<a class="jxr_linenumber" name="122" href="#122">122</a>     _zkClient.createPersistent(HelixUtil.getCurrentStateBasePath(clusterName, nodeId),
+<a class="jxr_linenumber" name="123" href="#123">123</a>                                <strong class="jxr_keyword">true</strong>);
+<a class="jxr_linenumber" name="124" href="#124">124</a>     _zkClient.createPersistent(HelixUtil.getErrorsPath(clusterName, nodeId), <strong class="jxr_keyword">true</strong>);
+<a class="jxr_linenumber" name="125" href="#125">125</a>     _zkClient.createPersistent(HelixUtil.getStatusUpdatesPath(clusterName, nodeId), <strong class="jxr_keyword">true</strong>);
+<a class="jxr_linenumber" name="126" href="#126">126</a>   }
+<a class="jxr_linenumber" name="127" href="#127">127</a> 
+<a class="jxr_linenumber" name="128" href="#128">128</a>   @Override
+<a class="jxr_linenumber" name="129" href="#129">129</a>   <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> dropInstance(String clusterName, <a href="../../../../../org/apache/helix/model/InstanceConfig.html">InstanceConfig</a> instanceConfig)
+<a class="jxr_linenumber" name="130" href="#130">130</a>   {
+<a class="jxr_linenumber" name="131" href="#131">131</a>     <em class="jxr_comment">// String instanceConfigsPath = HelixUtil.getConfigPath(clusterName);</em>
+<a class="jxr_linenumber" name="132" href="#132">132</a>     String instanceConfigsPath =
+<a class="jxr_linenumber" name="133" href="#133">133</a>         PropertyPathConfig.getPath(PropertyType.CONFIGS,
+<a class="jxr_linenumber" name="134" href="#134">134</a>                                    clusterName,
+<a class="jxr_linenumber" name="135" href="#135">135</a>                                    ConfigScopeProperty.PARTICIPANT.toString());
+<a class="jxr_linenumber" name="136" href="#136">136</a>     String nodeId = instanceConfig.getId();
+<a class="jxr_linenumber" name="137" href="#137">137</a>     String instanceConfigPath = instanceConfigsPath + <span class="jxr_string">"/"</span> + nodeId;
+<a class="jxr_linenumber" name="138" href="#138">138</a>     String instancePath = HelixUtil.getInstancePath(clusterName, nodeId);
+<a class="jxr_linenumber" name="139" href="#139">139</a> 
+<a class="jxr_linenumber" name="140" href="#140">140</a>     <strong class="jxr_keyword">if</strong> (!_zkClient.exists(instanceConfigPath))
+<a class="jxr_linenumber" name="141" href="#141">141</a>     {
+<a class="jxr_linenumber" name="142" href="#142">142</a>       <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/helix/HelixException.html">HelixException</a>(<span class="jxr_string">"Node "</span> + nodeId
+<a class="jxr_linenumber" name="143" href="#143">143</a>           + <span class="jxr_string">" does not exist in config for cluster "</span> + clusterName);
+<a class="jxr_linenumber" name="144" href="#144">144</a>     }
 <a class="jxr_linenumber" name="145" href="#145">145</a> 
-<a class="jxr_linenumber" name="146" href="#146">146</a>     <em class="jxr_comment">// delete instance path</em>
-<a class="jxr_linenumber" name="147" href="#147">147</a>     _zkClient.deleteRecursive(instancePath);
-<a class="jxr_linenumber" name="148" href="#148">148</a>   }
-<a class="jxr_linenumber" name="149" href="#149">149</a> 
-<a class="jxr_linenumber" name="150" href="#150">150</a>   @Override
-<a class="jxr_linenumber" name="151" href="#151">151</a>   <strong class="jxr_keyword">public</strong> <a href="../../../../../org/apache/helix/model/InstanceConfig.html">InstanceConfig</a> getInstanceConfig(String clusterName, String instanceName)
-<a class="jxr_linenumber" name="152" href="#152">152</a>   {
-<a class="jxr_linenumber" name="153" href="#153">153</a>     <em class="jxr_comment">// String instanceConfigsPath = HelixUtil.getConfigPath(clusterName);</em>
+<a class="jxr_linenumber" name="146" href="#146">146</a>     <strong class="jxr_keyword">if</strong> (!_zkClient.exists(instancePath))
+<a class="jxr_linenumber" name="147" href="#147">147</a>     {
+<a class="jxr_linenumber" name="148" href="#148">148</a>       <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/helix/HelixException.html">HelixException</a>(<span class="jxr_string">"Node "</span> + nodeId
+<a class="jxr_linenumber" name="149" href="#149">149</a>           + <span class="jxr_string">" does not exist in instances for cluster "</span> + clusterName);
+<a class="jxr_linenumber" name="150" href="#150">150</a>     }
+<a class="jxr_linenumber" name="151" href="#151">151</a> 
+<a class="jxr_linenumber" name="152" href="#152">152</a>     <em class="jxr_comment">// delete config path</em>
+<a class="jxr_linenumber" name="153" href="#153">153</a>     ZKUtil.dropChildren(_zkClient, instanceConfigsPath, instanceConfig.getRecord());
 <a class="jxr_linenumber" name="154" href="#154">154</a> 
-<a class="jxr_linenumber" name="155" href="#155">155</a>     <em class="jxr_comment">// String instanceConfigPath = instanceConfigsPath + "/" + instanceName;</em>
-<a class="jxr_linenumber" name="156" href="#156">156</a>     String instanceConfigPath =
-<a class="jxr_linenumber" name="157" href="#157">157</a>         PropertyPathConfig.getPath(PropertyType.CONFIGS,
-<a class="jxr_linenumber" name="158" href="#158">158</a>                                    clusterName,
-<a class="jxr_linenumber" name="159" href="#159">159</a>                                    ConfigScopeProperty.PARTICIPANT.toString(),
-<a class="jxr_linenumber" name="160" href="#160">160</a>                                    instanceName);
-<a class="jxr_linenumber" name="161" href="#161">161</a>     <strong class="jxr_keyword">if</strong> (!_zkClient.exists(instanceConfigPath))
-<a class="jxr_linenumber" name="162" href="#162">162</a>     {
-<a class="jxr_linenumber" name="163" href="#163">163</a>       <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/helix/HelixException.html">HelixException</a>(<span class="jxr_string">"instance"</span> + instanceName + <span class="jxr_string">" does not exist in cluster "</span>
-<a class="jxr_linenumber" name="164" href="#164">164</a>           + clusterName);
-<a class="jxr_linenumber" name="165" href="#165">165</a>     }
-<a class="jxr_linenumber" name="166" href="#166">166</a> 
-<a class="jxr_linenumber" name="167" href="#167">167</a>     <a href="../../../../../org/apache/helix/manager/zk/ZKHelixDataAccessor.html">ZKHelixDataAccessor</a> accessor =
-<a class="jxr_linenumber" name="168" href="#168">168</a>         <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/helix/manager/zk/ZKHelixDataAccessor.html">ZKHelixDataAccessor</a>(clusterName, <strong class="jxr_keyword">new</strong> ZkBaseDataAccessor&lt;ZNRecord&gt;(_zkClient));
-<a class="jxr_linenumber" name="169" href="#169">169</a>     <a href="../../../../../org/apache/helix/PropertyKey.html">Builder</a> keyBuilder = accessor.keyBuilder();
-<a class="jxr_linenumber" name="170" href="#170">170</a> 
-<a class="jxr_linenumber" name="171" href="#171">171</a>     <strong class="jxr_keyword">return</strong> accessor.getProperty(keyBuilder.instanceConfig(instanceName));
-<a class="jxr_linenumber" name="172" href="#172">172</a>   }
-<a class="jxr_linenumber" name="173" href="#173">173</a> 
-<a class="jxr_linenumber" name="174" href="#174">174</a>   @Override
-<a class="jxr_linenumber" name="175" href="#175">175</a>   <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> enableInstance(<strong class="jxr_keyword">final</strong> String clusterName,
-<a class="jxr_linenumber" name="176" href="#176">176</a>                              <strong class="jxr_keyword">final</strong> String instanceName,
-<a class="jxr_linenumber" name="177" href="#177">177</a>                              <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">boolean</strong> enabled)
-<a class="jxr_linenumber" name="178" href="#178">178</a>   {
-<a class="jxr_linenumber" name="179" href="#179">179</a>     String path =
-<a class="jxr_linenumber" name="180" href="#180">180</a>         PropertyPathConfig.getPath(PropertyType.CONFIGS,
-<a class="jxr_linenumber" name="181" href="#181">181</a>                                    clusterName,
-<a class="jxr_linenumber" name="182" href="#182">182</a>                                    ConfigScopeProperty.PARTICIPANT.toString(),
-<a class="jxr_linenumber" name="183" href="#183">183</a>                                    instanceName);
-<a class="jxr_linenumber" name="184" href="#184">184</a> 
-<a class="jxr_linenumber" name="185" href="#185">185</a>     ZkBaseDataAccessor&lt;ZNRecord&gt; baseAccessor =
-<a class="jxr_linenumber" name="186" href="#186">186</a>         <strong class="jxr_keyword">new</strong> ZkBaseDataAccessor&lt;ZNRecord&gt;(_zkClient);
-<a class="jxr_linenumber" name="187" href="#187">187</a>     <strong class="jxr_keyword">if</strong> (!baseAccessor.exists(path, 0))
-<a class="jxr_linenumber" name="188" href="#188">188</a>     {
-<a class="jxr_linenumber" name="189" href="#189">189</a>       <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/helix/HelixException.html">HelixException</a>(<span class="jxr_string">"Cluster "</span> + clusterName + <span class="jxr_string">", instance: "</span> + instanceName
-<a class="jxr_linenumber" name="190" href="#190">190</a>           + <span class="jxr_string">", instance config does not exist"</span>);
-<a class="jxr_linenumber" name="191" href="#191">191</a>     }
-<a class="jxr_linenumber" name="192" href="#192">192</a> 
-<a class="jxr_linenumber" name="193" href="#193">193</a>     baseAccessor.update(path, <strong class="jxr_keyword">new</strong> DataUpdater&lt;ZNRecord&gt;()
-<a class="jxr_linenumber" name="194" href="#194">194</a>     {
-<a class="jxr_linenumber" name="195" href="#195">195</a>       @Override
-<a class="jxr_linenumber" name="196" href="#196">196</a>       <strong class="jxr_keyword">public</strong> <a href="../../../../../org/apache/helix/ZNRecord.html">ZNRecord</a> update(<a href="../../../../../org/apache/helix/ZNRecord.html">ZNRecord</a> currentData)
-<a class="jxr_linenumber" name="197" href="#197">197</a>       {
-<a class="jxr_linenumber" name="198" href="#198">198</a>         <strong class="jxr_keyword">if</strong> (currentData == <strong class="jxr_keyword">null</strong>)
-<a class="jxr_linenumber" name="199" href="#199">199</a>         {
-<a class="jxr_linenumber" name="200" href="#200">200</a>           <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/helix/HelixException.html">HelixException</a>(<span class="jxr_string">"Cluster: "</span> + clusterName + <span class="jxr_string">", instance: "</span>
-<a class="jxr_linenumber" name="201" href="#201">201</a>               + instanceName + <span class="jxr_string">", participant config is null"</span>);
-<a class="jxr_linenumber" name="202" href="#202">202</a>         }
-<a class="jxr_linenumber" name="203" href="#203">203</a> 
-<a class="jxr_linenumber" name="204" href="#204">204</a>         <a href="../../../../../org/apache/helix/model/InstanceConfig.html">InstanceConfig</a> config = <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/helix/model/InstanceConfig.html">InstanceConfig</a>(currentData);
-<a class="jxr_linenumber" name="205" href="#205">205</a>         config.setInstanceEnabled(enabled);
-<a class="jxr_linenumber" name="206" href="#206">206</a>         <strong class="jxr_keyword">return</strong> config.getRecord();
-<a class="jxr_linenumber" name="207" href="#207">207</a>       }
-<a class="jxr_linenumber" name="208" href="#208">208</a>     }, AccessOption.PERSISTENT);
-<a class="jxr_linenumber" name="209" href="#209">209</a>   }
-<a class="jxr_linenumber" name="210" href="#210">210</a> 
-<a class="jxr_linenumber" name="211" href="#211">211</a>   @Override
-<a class="jxr_linenumber" name="212" href="#212">212</a>   <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> enablePartition(<strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">boolean</strong> enabled,
-<a class="jxr_linenumber" name="213" href="#213">213</a>                               <strong class="jxr_keyword">final</strong> String clusterName,
-<a class="jxr_linenumber" name="214" href="#214">214</a>                               <strong class="jxr_keyword">final</strong> String instanceName,
-<a class="jxr_linenumber" name="215" href="#215">215</a>                               <strong class="jxr_keyword">final</strong> String resourceName,
-<a class="jxr_linenumber" name="216" href="#216">216</a>                               <strong class="jxr_keyword">final</strong> List&lt;String&gt; partitionNames)
-<a class="jxr_linenumber" name="217" href="#217">217</a>   {
-<a class="jxr_linenumber" name="218" href="#218">218</a>     String path =
-<a class="jxr_linenumber" name="219" href="#219">219</a>         PropertyPathConfig.getPath(PropertyType.CONFIGS,
-<a class="jxr_linenumber" name="220" href="#220">220</a>                                    clusterName,
-<a class="jxr_linenumber" name="221" href="#221">221</a>                                    ConfigScopeProperty.PARTICIPANT.toString(),
-<a class="jxr_linenumber" name="222" href="#222">222</a>                                    instanceName);
-<a class="jxr_linenumber" name="223" href="#223">223</a> 
-<a class="jxr_linenumber" name="224" href="#224">224</a>     ZkBaseDataAccessor&lt;ZNRecord&gt; baseAccessor =
-<a class="jxr_linenumber" name="225" href="#225">225</a>         <strong class="jxr_keyword">new</strong> ZkBaseDataAccessor&lt;ZNRecord&gt;(_zkClient);
-<a class="jxr_linenumber" name="226" href="#226">226</a> 
-<a class="jxr_linenumber" name="227" href="#227">227</a>     <em class="jxr_comment">// check instanceConfig exists</em>
-<a class="jxr_linenumber" name="228" href="#228">228</a>     <strong class="jxr_keyword">if</strong> (!baseAccessor.exists(path, 0))
-<a class="jxr_linenumber" name="229" href="#229">229</a>     {
-<a class="jxr_linenumber" name="230" href="#230">230</a>       <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/helix/HelixException.html">HelixException</a>(<span class="jxr_string">"Cluster: "</span> + clusterName + <span class="jxr_string">", instance: "</span> + instanceName
-<a class="jxr_linenumber" name="231" href="#231">231</a>           + <span class="jxr_string">", instance config does not exist"</span>);
-<a class="jxr_linenumber" name="232" href="#232">232</a>     }
-<a class="jxr_linenumber" name="233" href="#233">233</a> 
-<a class="jxr_linenumber" name="234" href="#234">234</a>     <em class="jxr_comment">// check resource exists</em>
-<a class="jxr_linenumber" name="235" href="#235">235</a>     String idealStatePath =
-<a class="jxr_linenumber" name="236" href="#236">236</a>         PropertyPathConfig.getPath(PropertyType.IDEALSTATES, clusterName, resourceName);
-<a class="jxr_linenumber" name="237" href="#237">237</a> 
-<a class="jxr_linenumber" name="238" href="#238">238</a>     <a href="../../../../../org/apache/helix/ZNRecord.html">ZNRecord</a> idealStateRecord = <strong class="jxr_keyword">null</strong>;
-<a class="jxr_linenumber" name="239" href="#239">239</a>     <strong class="jxr_keyword">try</strong>
-<a class="jxr_linenumber" name="240" href="#240">240</a>     {
-<a class="jxr_linenumber" name="241" href="#241">241</a>       idealStateRecord = baseAccessor.get(idealStatePath, <strong class="jxr_keyword">null</strong>, 0);
-<a class="jxr_linenumber" name="242" href="#242">242</a>     }
-<a class="jxr_linenumber" name="243" href="#243">243</a>     <strong class="jxr_keyword">catch</strong> (ZkNoNodeException e)
-<a class="jxr_linenumber" name="244" href="#244">244</a>     {
-<a class="jxr_linenumber" name="245" href="#245">245</a>       <em class="jxr_comment">// OK.</em>
-<a class="jxr_linenumber" name="246" href="#246">246</a>     }
-<a class="jxr_linenumber" name="247" href="#247">247</a> 
-<a class="jxr_linenumber" name="248" href="#248">248</a>     <strong class="jxr_keyword">if</strong> (idealStateRecord == <strong class="jxr_keyword">null</strong>)
+<a class="jxr_linenumber" name="155" href="#155">155</a>     <em class="jxr_comment">// delete instance path</em>
+<a class="jxr_linenumber" name="156" href="#156">156</a>     _zkClient.deleteRecursive(instancePath);
+<a class="jxr_linenumber" name="157" href="#157">157</a>   }
+<a class="jxr_linenumber" name="158" href="#158">158</a> 
+<a class="jxr_linenumber" name="159" href="#159">159</a>   @Override
+<a class="jxr_linenumber" name="160" href="#160">160</a>   <strong class="jxr_keyword">public</strong> <a href="../../../../../org/apache/helix/model/InstanceConfig.html">InstanceConfig</a> getInstanceConfig(String clusterName, String instanceName)
+<a class="jxr_linenumber" name="161" href="#161">161</a>   {
+<a class="jxr_linenumber" name="162" href="#162">162</a>     <em class="jxr_comment">// String instanceConfigsPath = HelixUtil.getConfigPath(clusterName);</em>
+<a class="jxr_linenumber" name="163" href="#163">163</a> 
+<a class="jxr_linenumber" name="164" href="#164">164</a>     <em class="jxr_comment">// String instanceConfigPath = instanceConfigsPath + "/" + instanceName;</em>
+<a class="jxr_linenumber" name="165" href="#165">165</a>     String instanceConfigPath =
+<a class="jxr_linenumber" name="166" href="#166">166</a>         PropertyPathConfig.getPath(PropertyType.CONFIGS,
+<a class="jxr_linenumber" name="167" href="#167">167</a>                                    clusterName,
+<a class="jxr_linenumber" name="168" href="#168">168</a>                                    ConfigScopeProperty.PARTICIPANT.toString(),
+<a class="jxr_linenumber" name="169" href="#169">169</a>                                    instanceName);
+<a class="jxr_linenumber" name="170" href="#170">170</a>     <strong class="jxr_keyword">if</strong> (!_zkClient.exists(instanceConfigPath))
+<a class="jxr_linenumber" name="171" href="#171">171</a>     {
+<a class="jxr_linenumber" name="172" href="#172">172</a>       <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/helix/HelixException.html">HelixException</a>(<span class="jxr_string">"instance"</span> + instanceName + <span class="jxr_string">" does not exist in cluster "</span>
+<a class="jxr_linenumber" name="173" href="#173">173</a>           + clusterName);
+<a class="jxr_linenumber" name="174" href="#174">174</a>     }
+<a class="jxr_linenumber" name="175" href="#175">175</a> 
+<a class="jxr_linenumber" name="176" href="#176">176</a>     <a href="../../../../../org/apache/helix/manager/zk/ZKHelixDataAccessor.html">ZKHelixDataAccessor</a> accessor =
+<a class="jxr_linenumber" name="177" href="#177">177</a>         <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/helix/manager/zk/ZKHelixDataAccessor.html">ZKHelixDataAccessor</a>(clusterName, <strong class="jxr_keyword">new</strong> ZkBaseDataAccessor&lt;ZNRecord&gt;(_zkClient));
+<a class="jxr_linenumber" name="178" href="#178">178</a>     <a href="../../../../../org/apache/helix/PropertyKey.html">Builder</a> keyBuilder = accessor.keyBuilder();
+<a class="jxr_linenumber" name="179" href="#179">179</a> 
+<a class="jxr_linenumber" name="180" href="#180">180</a>     <strong class="jxr_keyword">return</strong> accessor.getProperty(keyBuilder.instanceConfig(instanceName));
+<a class="jxr_linenumber" name="181" href="#181">181</a>   }
+<a class="jxr_linenumber" name="182" href="#182">182</a> 
+<a class="jxr_linenumber" name="183" href="#183">183</a>   @Override
+<a class="jxr_linenumber" name="184" href="#184">184</a>   <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> enableInstance(<strong class="jxr_keyword">final</strong> String clusterName,
+<a class="jxr_linenumber" name="185" href="#185">185</a>                              <strong class="jxr_keyword">final</strong> String instanceName,
+<a class="jxr_linenumber" name="186" href="#186">186</a>                              <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">boolean</strong> enabled)
+<a class="jxr_linenumber" name="187" href="#187">187</a>   {
+<a class="jxr_linenumber" name="188" href="#188">188</a>     String path =
+<a class="jxr_linenumber" name="189" href="#189">189</a>         PropertyPathConfig.getPath(PropertyType.CONFIGS,
+<a class="jxr_linenumber" name="190" href="#190">190</a>                                    clusterName,
+<a class="jxr_linenumber" name="191" href="#191">191</a>                                    ConfigScopeProperty.PARTICIPANT.toString(),
+<a class="jxr_linenumber" name="192" href="#192">192</a>                                    instanceName);
+<a class="jxr_linenumber" name="193" href="#193">193</a> 
+<a class="jxr_linenumber" name="194" href="#194">194</a>     ZkBaseDataAccessor&lt;ZNRecord&gt; baseAccessor =
+<a class="jxr_linenumber" name="195" href="#195">195</a>         <strong class="jxr_keyword">new</strong> ZkBaseDataAccessor&lt;ZNRecord&gt;(_zkClient);
+<a class="jxr_linenumber" name="196" href="#196">196</a>     <strong class="jxr_keyword">if</strong> (!baseAccessor.exists(path, 0))
+<a class="jxr_linenumber" name="197" href="#197">197</a>     {
+<a class="jxr_linenumber" name="198" href="#198">198</a>       <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/helix/HelixException.html">HelixException</a>(<span class="jxr_string">"Cluster "</span> + clusterName + <span class="jxr_string">", instance: "</span> + instanceName
+<a class="jxr_linenumber" name="199" href="#199">199</a>           + <span class="jxr_string">", instance config does not exist"</span>);
+<a class="jxr_linenumber" name="200" href="#200">200</a>     }
+<a class="jxr_linenumber" name="201" href="#201">201</a> 
+<a class="jxr_linenumber" name="202" href="#202">202</a>     baseAccessor.update(path, <strong class="jxr_keyword">new</strong> DataUpdater&lt;ZNRecord&gt;()
+<a class="jxr_linenumber" name="203" href="#203">203</a>     {
+<a class="jxr_linenumber" name="204" href="#204">204</a>       @Override
+<a class="jxr_linenumber" name="205" href="#205">205</a>       <strong class="jxr_keyword">public</strong> <a href="../../../../../org/apache/helix/ZNRecord.html">ZNRecord</a> update(<a href="../../../../../org/apache/helix/ZNRecord.html">ZNRecord</a> currentData)
+<a class="jxr_linenumber" name="206" href="#206">206</a>       {
+<a class="jxr_linenumber" name="207" href="#207">207</a>         <strong class="jxr_keyword">if</strong> (currentData == <strong class="jxr_keyword">null</strong>)
+<a class="jxr_linenumber" name="208" href="#208">208</a>         {
+<a class="jxr_linenumber" name="209" href="#209">209</a>           <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/helix/HelixException.html">HelixException</a>(<span class="jxr_string">"Cluster: "</span> + clusterName + <span class="jxr_string">", instance: "</span>
+<a class="jxr_linenumber" name="210" href="#210">210</a>               + instanceName + <span class="jxr_string">", participant config is null"</span>);
+<a class="jxr_linenumber" name="211" href="#211">211</a>         }
+<a class="jxr_linenumber" name="212" href="#212">212</a> 
+<a class="jxr_linenumber" name="213" href="#213">213</a>         <a href="../../../../../org/apache/helix/model/InstanceConfig.html">InstanceConfig</a> config = <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/helix/model/InstanceConfig.html">InstanceConfig</a>(currentData);
+<a class="jxr_linenumber" name="214" href="#214">214</a>         config.setInstanceEnabled(enabled);
+<a class="jxr_linenumber" name="215" href="#215">215</a>         <strong class="jxr_keyword">return</strong> config.getRecord();
+<a class="jxr_linenumber" name="216" href="#216">216</a>       }
+<a class="jxr_linenumber" name="217" href="#217">217</a>     }, AccessOption.PERSISTENT);
+<a class="jxr_linenumber" name="218" href="#218">218</a>   }
+<a class="jxr_linenumber" name="219" href="#219">219</a> 
+<a class="jxr_linenumber" name="220" href="#220">220</a>   @Override
+<a class="jxr_linenumber" name="221" href="#221">221</a>   <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> enablePartition(<strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">boolean</strong> enabled,
+<a class="jxr_linenumber" name="222" href="#222">222</a>                               <strong class="jxr_keyword">final</strong> String clusterName,
+<a class="jxr_linenumber" name="223" href="#223">223</a>                               <strong class="jxr_keyword">final</strong> String instanceName,
+<a class="jxr_linenumber" name="224" href="#224">224</a>                               <strong class="jxr_keyword">final</strong> String resourceName,
+<a class="jxr_linenumber" name="225" href="#225">225</a>                               <strong class="jxr_keyword">final</strong> List&lt;String&gt; partitionNames)
+<a class="jxr_linenumber" name="226" href="#226">226</a>   {
+<a class="jxr_linenumber" name="227" href="#227">227</a>     String path =
+<a class="jxr_linenumber" name="228" href="#228">228</a>         PropertyPathConfig.getPath(PropertyType.CONFIGS,
+<a class="jxr_linenumber" name="229" href="#229">229</a>                                    clusterName,
+<a class="jxr_linenumber" name="230" href="#230">230</a>                                    ConfigScopeProperty.PARTICIPANT.toString(),
+<a class="jxr_linenumber" name="231" href="#231">231</a>                                    instanceName);
+<a class="jxr_linenumber" name="232" href="#232">232</a> 
+<a class="jxr_linenumber" name="233" href="#233">233</a>     ZkBaseDataAccessor&lt;ZNRecord&gt; baseAccessor =
+<a class="jxr_linenumber" name="234" href="#234">234</a>         <strong class="jxr_keyword">new</strong> ZkBaseDataAccessor&lt;ZNRecord&gt;(_zkClient);
+<a class="jxr_linenumber" name="235" href="#235">235</a> 
+<a class="jxr_linenumber" name="236" href="#236">236</a>     <em class="jxr_comment">// check instanceConfig exists</em>
+<a class="jxr_linenumber" name="237" href="#237">237</a>     <strong class="jxr_keyword">if</strong> (!baseAccessor.exists(path, 0))
+<a class="jxr_linenumber" name="238" href="#238">238</a>     {
+<a class="jxr_linenumber" name="239" href="#239">239</a>       <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/helix/HelixException.html">HelixException</a>(<span class="jxr_string">"Cluster: "</span> + clusterName + <span class="jxr_string">", instance: "</span> + instanceName
+<a class="jxr_linenumber" name="240" href="#240">240</a>           + <span class="jxr_string">", instance config does not exist"</span>);
+<a class="jxr_linenumber" name="241" href="#241">241</a>     }
+<a class="jxr_linenumber" name="242" href="#242">242</a> 
+<a class="jxr_linenumber" name="243" href="#243">243</a>     <em class="jxr_comment">// check resource exists</em>
+<a class="jxr_linenumber" name="244" href="#244">244</a>     String idealStatePath =
+<a class="jxr_linenumber" name="245" href="#245">245</a>         PropertyPathConfig.getPath(PropertyType.IDEALSTATES, clusterName, resourceName);
+<a class="jxr_linenumber" name="246" href="#246">246</a> 
+<a class="jxr_linenumber" name="247" href="#247">247</a>     <a href="../../../../../org/apache/helix/ZNRecord.html">ZNRecord</a> idealStateRecord = <strong class="jxr_keyword">null</strong>;
+<a class="jxr_linenumber" name="248" href="#248">248</a>     <strong class="jxr_keyword">try</strong>
 <a class="jxr_linenumber" name="249" href="#249">249</a>     {
-<a class="jxr_linenumber" name="250" href="#250">250</a>       <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/helix/HelixException.html">HelixException</a>(<span class="jxr_string">"Cluster: "</span> + clusterName + <span class="jxr_string">", resource: "</span> + resourceName
-<a class="jxr_linenumber" name="251" href="#251">251</a>           + <span class="jxr_string">", ideal state does not exist"</span>);
-<a class="jxr_linenumber" name="252" href="#252">252</a>     }
-<a class="jxr_linenumber" name="253" href="#253">253</a> 
-<a class="jxr_linenumber" name="254" href="#254">254</a>     <em class="jxr_comment">// check partitions exist. warn if not</em>
-<a class="jxr_linenumber" name="255" href="#255">255</a>     <a href="../../../../../org/apache/helix/model/IdealState.html">IdealState</a> idealState = <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/helix/model/IdealState.html">IdealState</a>(idealStateRecord);
-<a class="jxr_linenumber" name="256" href="#256">256</a>     <strong class="jxr_keyword">for</strong> (String partitionName : partitionNames)
-<a class="jxr_linenumber" name="257" href="#257">257</a>     {
-<a class="jxr_linenumber" name="258" href="#258">258</a>       <strong class="jxr_keyword">if</strong> ((idealState.getIdealStateMode() == IdealStateModeProperty.AUTO &amp;&amp; idealState.getPreferenceList(partitionName) == <strong class="jxr_keyword">null</strong>)
-<a class="jxr_linenumber" name="259" href="#259">259</a>           || (idealState.getIdealStateMode() == IdealStateModeProperty.CUSTOMIZED &amp;&amp; idealState.getInstanceStateMap(partitionName) == <strong class="jxr_keyword">null</strong>))
-<a class="jxr_linenumber" name="260" href="#260">260</a>       {
-<a class="jxr_linenumber" name="261" href="#261">261</a>         logger.warn(<span class="jxr_string">"Cluster: "</span> + clusterName + <span class="jxr_string">", resource: "</span> + resourceName
-<a class="jxr_linenumber" name="262" href="#262">262</a>             + <span class="jxr_string">", partition: "</span> + partitionName
-<a class="jxr_linenumber" name="263" href="#263">263</a>             + <span class="jxr_string">", partition does not exist in ideal state"</span>);
-<a class="jxr_linenumber" name="264" href="#264">264</a>       }
-<a class="jxr_linenumber" name="265" href="#265">265</a>     }
-<a class="jxr_linenumber" name="266" href="#266">266</a> 
-<a class="jxr_linenumber" name="267" href="#267">267</a>     <em class="jxr_comment">// update participantConfig</em>
-<a class="jxr_linenumber" name="268" href="#268">268</a>     <em class="jxr_comment">// could not use ZNRecordUpdater since it doesn't do listField merge/subtract</em>
-<a class="jxr_linenumber" name="269" href="#269">269</a>     baseAccessor.update(path, <strong class="jxr_keyword">new</strong> DataUpdater&lt;ZNRecord&gt;()
-<a class="jxr_linenumber" name="270" href="#270">270</a>     {
-<a class="jxr_linenumber" name="271" href="#271">271</a>       @Override
-<a class="jxr_linenumber" name="272" href="#272">272</a>       <strong class="jxr_keyword">public</strong> <a href="../../../../../org/apache/helix/ZNRecord.html">ZNRecord</a> update(<a href="../../../../../org/apache/helix/ZNRecord.html">ZNRecord</a> currentData)
-<a class="jxr_linenumber" name="273" href="#273">273</a>       {
-<a class="jxr_linenumber" name="274" href="#274">274</a>         <strong class="jxr_keyword">if</strong> (currentData == <strong class="jxr_keyword">null</strong>)
-<a class="jxr_linenumber" name="275" href="#275">275</a>         {
-<a class="jxr_linenumber" name="276" href="#276">276</a>           <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/helix/HelixException.html">HelixException</a>(<span class="jxr_string">"Cluster: "</span> + clusterName + <span class="jxr_string">", instance: "</span>
-<a class="jxr_linenumber" name="277" href="#277">277</a>               + instanceName + <span class="jxr_string">", participant config is null"</span>);
-<a class="jxr_linenumber" name="278" href="#278">278</a>         }
-<a class="jxr_linenumber" name="279" href="#279">279</a> 
-<a class="jxr_linenumber" name="280" href="#280">280</a>         <em class="jxr_comment">// TODO: merge with InstanceConfig.setInstanceEnabledForPartition</em>
-<a class="jxr_linenumber" name="281" href="#281">281</a>         List&lt;String&gt; list =
-<a class="jxr_linenumber" name="282" href="#282">282</a>             currentData.getListField(InstanceConfigProperty.HELIX_DISABLED_PARTITION.toString());
-<a class="jxr_linenumber" name="283" href="#283">283</a>         Set&lt;String&gt; disabledPartitions = <strong class="jxr_keyword">new</strong> HashSet&lt;String&gt;();
-<a class="jxr_linenumber" name="284" href="#284">284</a>         <strong class="jxr_keyword">if</strong> (list != <strong class="jxr_keyword">null</strong>)
-<a class="jxr_linenumber" name="285" href="#285">285</a>         {
-<a class="jxr_linenumber" name="286" href="#286">286</a>           disabledPartitions.addAll(list);
+<a class="jxr_linenumber" name="250" href="#250">250</a>       idealStateRecord = baseAccessor.get(idealStatePath, <strong class="jxr_keyword">null</strong>, 0);
+<a class="jxr_linenumber" name="251" href="#251">251</a>     }
+<a class="jxr_linenumber" name="252" href="#252">252</a>     <strong class="jxr_keyword">catch</strong> (ZkNoNodeException e)
+<a class="jxr_linenumber" name="253" href="#253">253</a>     {
+<a class="jxr_linenumber" name="254" href="#254">254</a>       <em class="jxr_comment">// OK.</em>
+<a class="jxr_linenumber" name="255" href="#255">255</a>     }
+<a class="jxr_linenumber" name="256" href="#256">256</a> 
+<a class="jxr_linenumber" name="257" href="#257">257</a>     <strong class="jxr_keyword">if</strong> (idealStateRecord == <strong class="jxr_keyword">null</strong>)
+<a class="jxr_linenumber" name="258" href="#258">258</a>     {
+<a class="jxr_linenumber" name="259" href="#259">259</a>       <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/helix/HelixException.html">HelixException</a>(<span class="jxr_string">"Cluster: "</span> + clusterName + <span class="jxr_string">", resource: "</span> + resourceName
+<a class="jxr_linenumber" name="260" href="#260">260</a>           + <span class="jxr_string">", ideal state does not exist"</span>);
+<a class="jxr_linenumber" name="261" href="#261">261</a>     }
+<a class="jxr_linenumber" name="262" href="#262">262</a> 
+<a class="jxr_linenumber" name="263" href="#263">263</a>     <em class="jxr_comment">// check partitions exist. warn if not</em>
+<a class="jxr_linenumber" name="264" href="#264">264</a>     <a href="../../../../../org/apache/helix/model/IdealState.html">IdealState</a> idealState = <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/helix/model/IdealState.html">IdealState</a>(idealStateRecord);
+<a class="jxr_linenumber" name="265" href="#265">265</a>     <strong class="jxr_keyword">for</strong> (String partitionName : partitionNames)
+<a class="jxr_linenumber" name="266" href="#266">266</a>     {
+<a class="jxr_linenumber" name="267" href="#267">267</a>       <strong class="jxr_keyword">if</strong> ((idealState.getIdealStateMode() == IdealStateModeProperty.AUTO &amp;&amp; idealState.getPreferenceList(partitionName) == <strong class="jxr_keyword">null</strong>)
+<a class="jxr_linenumber" name="268" href="#268">268</a>           || (idealState.getIdealStateMode() == IdealStateModeProperty.CUSTOMIZED &amp;&amp; idealState.getInstanceStateMap(partitionName) == <strong class="jxr_keyword">null</strong>))
+<a class="jxr_linenumber" name="269" href="#269">269</a>       {
+<a class="jxr_linenumber" name="270" href="#270">270</a>         logger.warn(<span class="jxr_string">"Cluster: "</span> + clusterName + <span class="jxr_string">", resource: "</span> + resourceName
+<a class="jxr_linenumber" name="271" href="#271">271</a>             + <span class="jxr_string">", partition: "</span> + partitionName
+<a class="jxr_linenumber" name="272" href="#272">272</a>             + <span class="jxr_string">", partition does not exist in ideal state"</span>);
+<a class="jxr_linenumber" name="273" href="#273">273</a>       }
+<a class="jxr_linenumber" name="274" href="#274">274</a>     }
+<a class="jxr_linenumber" name="275" href="#275">275</a> 
+<a class="jxr_linenumber" name="276" href="#276">276</a>     <em class="jxr_comment">// update participantConfig</em>
+<a class="jxr_linenumber" name="277" href="#277">277</a>     <em class="jxr_comment">// could not use ZNRecordUpdater since it doesn't do listField merge/subtract</em>
+<a class="jxr_linenumber" name="278" href="#278">278</a>     baseAccessor.update(path, <strong class="jxr_keyword">new</strong> DataUpdater&lt;ZNRecord&gt;()
+<a class="jxr_linenumber" name="279" href="#279">279</a>     {
+<a class="jxr_linenumber" name="280" href="#280">280</a>       @Override
+<a class="jxr_linenumber" name="281" href="#281">281</a>       <strong class="jxr_keyword">public</strong> <a href="../../../../../org/apache/helix/ZNRecord.html">ZNRecord</a> update(<a href="../../../../../org/apache/helix/ZNRecord.html">ZNRecord</a> currentData)
+<a class="jxr_linenumber" name="282" href="#282">282</a>       {
+<a class="jxr_linenumber" name="283" href="#283">283</a>         <strong class="jxr_keyword">if</strong> (currentData == <strong class="jxr_keyword">null</strong>)
+<a class="jxr_linenumber" name="284" href="#284">284</a>         {
+<a class="jxr_linenumber" name="285" href="#285">285</a>           <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/helix/HelixException.html">HelixException</a>(<span class="jxr_string">"Cluster: "</span> + clusterName + <span class="jxr_string">", instance: "</span>
+<a class="jxr_linenumber" name="286" href="#286">286</a>               + instanceName + <span class="jxr_string">", participant config is null"</span>);
 <a class="jxr_linenumber" name="287" href="#287">287</a>         }
 <a class="jxr_linenumber" name="288" href="#288">288</a> 
-<a class="jxr_linenumber" name="289" href="#289">289</a>         <strong class="jxr_keyword">if</strong> (enabled)
-<a class="jxr_linenumber" name="290" href="#290">290</a>         {
-<a class="jxr_linenumber" name="291" href="#291">291</a>           disabledPartitions.removeAll(partitionNames);
-<a class="jxr_linenumber" name="292" href="#292">292</a>         }
-<a class="jxr_linenumber" name="293" href="#293">293</a>         <strong class="jxr_keyword">else</strong>
+<a class="jxr_linenumber" name="289" href="#289">289</a>         <em class="jxr_comment">// TODO: merge with InstanceConfig.setInstanceEnabledForPartition</em>
+<a class="jxr_linenumber" name="290" href="#290">290</a>         List&lt;String&gt; list =
+<a class="jxr_linenumber" name="291" href="#291">291</a>             currentData.getListField(InstanceConfigProperty.HELIX_DISABLED_PARTITION.toString());
+<a class="jxr_linenumber" name="292" href="#292">292</a>         Set&lt;String&gt; disabledPartitions = <strong class="jxr_keyword">new</strong> HashSet&lt;String&gt;();
+<a class="jxr_linenumber" name="293" href="#293">293</a>         <strong class="jxr_keyword">if</strong> (list != <strong class="jxr_keyword">null</strong>)
 <a class="jxr_linenumber" name="294" href="#294">294</a>         {
-<a class="jxr_linenumber" name="295" href="#295">295</a>           disabledPartitions.addAll(partitionNames);
+<a class="jxr_linenumber" name="295" href="#295">295</a>           disabledPartitions.addAll(list);
 <a class="jxr_linenumber" name="296" href="#296">296</a>         }
 <a class="jxr_linenumber" name="297" href="#297">297</a> 
-<a class="jxr_linenumber" name="298" href="#298">298</a>         list = <strong class="jxr_keyword">new</strong> ArrayList&lt;String&gt;(disabledPartitions);
-<a class="jxr_linenumber" name="299" href="#299">299</a>         Collections.sort(list);
-<a class="jxr_linenumber" name="300" href="#300">300</a>         currentData.setListField(InstanceConfigProperty.HELIX_DISABLED_PARTITION.toString(),
-<a class="jxr_linenumber" name="301" href="#301">301</a>                                  list);
-<a class="jxr_linenumber" name="302" href="#302">302</a>         <strong class="jxr_keyword">return</strong> currentData;
-<a class="jxr_linenumber" name="303" href="#303">303</a>       }
-<a class="jxr_linenumber" name="304" href="#304">304</a>     },
-<a class="jxr_linenumber" name="305" href="#305">305</a>                         AccessOption.PERSISTENT);
-<a class="jxr_linenumber" name="306" href="#306">306</a>   }
-<a class="jxr_linenumber" name="307" href="#307">307</a> 
-<a class="jxr_linenumber" name="308" href="#308">308</a>   @Override
-<a class="jxr_linenumber" name="309" href="#309">309</a>   <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> enableCluster(String clusterName, <strong class="jxr_keyword">boolean</strong> enabled)
-<a class="jxr_linenumber" name="310" href="#310">310</a>   {
-<a class="jxr_linenumber" name="311" href="#311">311</a>     <a href="../../../../../org/apache/helix/HelixDataAccessor.html">HelixDataAccessor</a> accessor =
-<a class="jxr_linenumber" name="312" href="#312">312</a>         <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/helix/manager/zk/ZKHelixDataAccessor.html">ZKHelixDataAccessor</a>(clusterName, <strong class="jxr_keyword">new</strong> ZkBaseDataAccessor&lt;ZNRecord&gt;(_zkClient));
-<a class="jxr_linenumber" name="313" href="#313">313</a>     <a href="../../../../../org/apache/helix/PropertyKey.html">Builder</a> keyBuilder = accessor.keyBuilder();
-<a class="jxr_linenumber" name="314" href="#314">314</a> 
-<a class="jxr_linenumber" name="315" href="#315">315</a>     <strong class="jxr_keyword">if</strong> (enabled)
-<a class="jxr_linenumber" name="316" href="#316">316</a>     {
-<a class="jxr_linenumber" name="317" href="#317">317</a>       accessor.removeProperty(keyBuilder.pause());
-<a class="jxr_linenumber" name="318" href="#318">318</a>     }
-<a class="jxr_linenumber" name="319" href="#319">319</a>     <strong class="jxr_keyword">else</strong>
-<a class="jxr_linenumber" name="320" href="#320">320</a>     {
-<a class="jxr_linenumber" name="321" href="#321">321</a>       accessor.createProperty(keyBuilder.pause(), <strong class="jxr_keyword">new</strong> PauseSignal(<span class="jxr_string">"pause"</span>));
-<a class="jxr_linenumber" name="322" href="#322">322</a>     }
-<a class="jxr_linenumber" name="323" href="#323">323</a>   }
-<a class="jxr_linenumber" name="324" href="#324">324</a> 
-<a class="jxr_linenumber" name="325" href="#325">325</a>   @Override
-<a class="jxr_linenumber" name="326" href="#326">326</a>   <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> resetPartition(String clusterName,
-<a class="jxr_linenumber" name="327" href="#327">327</a>                              String instanceName,
-<a class="jxr_linenumber" name="328" href="#328">328</a>                              String resourceName,
-<a class="jxr_linenumber" name="329" href="#329">329</a>                              List&lt;String&gt; partitionNames)
-<a class="jxr_linenumber" name="330" href="#330">330</a>   {
-<a class="jxr_linenumber" name="331" href="#331">331</a>     <a href="../../../../../org/apache/helix/manager/zk/ZKHelixDataAccessor.html">ZKHelixDataAccessor</a> accessor =
-<a class="jxr_linenumber" name="332" href="#332">332</a>         <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/helix/manager/zk/ZKHelixDataAccessor.html">ZKHelixDataAccessor</a>(clusterName, <strong class="jxr_keyword">new</strong> ZkBaseDataAccessor&lt;ZNRecord&gt;(_zkClient));
-<a class="jxr_linenumber" name="333" href="#333">333</a>     <a href="../../../../../org/apache/helix/PropertyKey.html">Builder</a> keyBuilder = accessor.keyBuilder();
-<a class="jxr_linenumber" name="334" href="#334">334</a> 
-<a class="jxr_linenumber" name="335" href="#335">335</a>     <em class="jxr_comment">// check the instance is alive</em>
-<a class="jxr_linenumber" name="336" href="#336">336</a>     <a href="../../../../../org/apache/helix/model/LiveInstance.html">LiveInstance</a> liveInstance =
-<a class="jxr_linenumber" name="337" href="#337">337</a>         accessor.getProperty(keyBuilder.liveInstance(instanceName));
-<a class="jxr_linenumber" name="338" href="#338">338</a>     <strong class="jxr_keyword">if</strong> (liveInstance == <strong class="jxr_keyword">null</strong>)
-<a class="jxr_linenumber" name="339" href="#339">339</a>     {
-<a class="jxr_linenumber" name="340" href="#340">340</a>       <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/helix/HelixException.html">HelixException</a>(<span class="jxr_string">"Can't reset state for "</span> + resourceName + <span class="jxr_string">"/"</span>
-<a class="jxr_linenumber" name="341" href="#341">341</a>           + partitionNames + <span class="jxr_string">" on "</span> + instanceName + <span class="jxr_string">", because "</span> + instanceName
-<a class="jxr_linenumber" name="342" href="#342">342</a>           + <span class="jxr_string">" is not alive"</span>);
-<a class="jxr_linenumber" name="343" href="#343">343</a>     }
-<a class="jxr_linenumber" name="344" href="#344">344</a> 
-<a class="jxr_linenumber" name="345" href="#345">345</a>     <em class="jxr_comment">// check resource group exists</em>
-<a class="jxr_linenumber" name="346" href="#346">346</a>     <a href="../../../../../org/apache/helix/model/IdealState.html">IdealState</a> idealState = accessor.getProperty(keyBuilder.idealStates(resourceName));
-<a class="jxr_linenumber" name="347" href="#347">347</a>     <strong class="jxr_keyword">if</strong> (idealState == <strong class="jxr_keyword">null</strong>)
+<a class="jxr_linenumber" name="298" href="#298">298</a>         <strong class="jxr_keyword">if</strong> (enabled)
+<a class="jxr_linenumber" name="299" href="#299">299</a>         {
+<a class="jxr_linenumber" name="300" href="#300">300</a>           disabledPartitions.removeAll(partitionNames);
+<a class="jxr_linenumber" name="301" href="#301">301</a>         }
+<a class="jxr_linenumber" name="302" href="#302">302</a>         <strong class="jxr_keyword">else</strong>
+<a class="jxr_linenumber" name="303" href="#303">303</a>         {
+<a class="jxr_linenumber" name="304" href="#304">304</a>           disabledPartitions.addAll(partitionNames);
+<a class="jxr_linenumber" name="305" href="#305">305</a>         }
+<a class="jxr_linenumber" name="306" href="#306">306</a> 
+<a class="jxr_linenumber" name="307" href="#307">307</a>         list = <strong class="jxr_keyword">new</strong> ArrayList&lt;String&gt;(disabledPartitions);
+<a class="jxr_linenumber" name="308" href="#308">308</a>         Collections.sort(list);
+<a class="jxr_linenumber" name="309" href="#309">309</a>         currentData.setListField(InstanceConfigProperty.HELIX_DISABLED_PARTITION.toString(),
+<a class="jxr_linenumber" name="310" href="#310">310</a>                                  list);
+<a class="jxr_linenumber" name="311" href="#311">311</a>         <strong class="jxr_keyword">return</strong> currentData;
+<a class="jxr_linenumber" name="312" href="#312">312</a>       }
+<a class="jxr_linenumber" name="313" href="#313">313</a>     },
+<a class="jxr_linenumber" name="314" href="#314">314</a>                         AccessOption.PERSISTENT);
+<a class="jxr_linenumber" name="315" href="#315">315</a>   }
+<a class="jxr_linenumber" name="316" href="#316">316</a> 
+<a class="jxr_linenumber" name="317" href="#317">317</a>   @Override
+<a class="jxr_linenumber" name="318" href="#318">318</a>   <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> enableCluster(String clusterName, <strong class="jxr_keyword">boolean</strong> enabled)
+<a class="jxr_linenumber" name="319" href="#319">319</a>   {
+<a class="jxr_linenumber" name="320" href="#320">320</a>     <a href="../../../../../org/apache/helix/HelixDataAccessor.html">HelixDataAccessor</a> accessor =
+<a class="jxr_linenumber" name="321" href="#321">321</a>         <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/helix/manager/zk/ZKHelixDataAccessor.html">ZKHelixDataAccessor</a>(clusterName, <strong class="jxr_keyword">new</strong> ZkBaseDataAccessor&lt;ZNRecord&gt;(_zkClient));
+<a class="jxr_linenumber" name="322" href="#322">322</a>     <a href="../../../../../org/apache/helix/PropertyKey.html">Builder</a> keyBuilder = accessor.keyBuilder();
+<a class="jxr_linenumber" name="323" href="#323">323</a> 
+<a class="jxr_linenumber" name="324" href="#324">324</a>     <strong class="jxr_keyword">if</strong> (enabled)
+<a class="jxr_linenumber" name="325" href="#325">325</a>     {
+<a class="jxr_linenumber" name="326" href="#326">326</a>       accessor.removeProperty(keyBuilder.pause());
+<a class="jxr_linenumber" name="327" href="#327">327</a>     }
+<a class="jxr_linenumber" name="328" href="#328">328</a>     <strong class="jxr_keyword">else</strong>
+<a class="jxr_linenumber" name="329" href="#329">329</a>     {
+<a class="jxr_linenumber" name="330" href="#330">330</a>       accessor.createProperty(keyBuilder.pause(), <strong class="jxr_keyword">new</strong> PauseSignal(<span class="jxr_string">"pause"</span>));
+<a class="jxr_linenumber" name="331" href="#331">331</a>     }
+<a class="jxr_linenumber" name="332" href="#332">332</a>   }
+<a class="jxr_linenumber" name="333" href="#333">333</a> 
+<a class="jxr_linenumber" name="334" href="#334">334</a>   @Override
+<a class="jxr_linenumber" name="335" href="#335">335</a>   <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> resetPartition(String clusterName,
+<a class="jxr_linenumber" name="336" href="#336">336</a>                              String instanceName,
+<a class="jxr_linenumber" name="337" href="#337">337</a>                              String resourceName,
+<a class="jxr_linenumber" name="338" href="#338">338</a>                              List&lt;String&gt; partitionNames)
+<a class="jxr_linenumber" name="339" href="#339">339</a>   {
+<a class="jxr_linenumber" name="340" href="#340">340</a>     <a href="../../../../../org/apache/helix/manager/zk/ZKHelixDataAccessor.html">ZKHelixDataAccessor</a> accessor =
+<a class="jxr_linenumber" name="341" href="#341">341</a>         <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/helix/manager/zk/ZKHelixDataAccessor.html">ZKHelixDataAccessor</a>(clusterName, <strong class="jxr_keyword">new</strong> ZkBaseDataAccessor&lt;ZNRecord&gt;(_zkClient));
+<a class="jxr_linenumber" name="342" href="#342">342</a>     <a href="../../../../../org/apache/helix/PropertyKey.html">Builder</a> keyBuilder = accessor.keyBuilder();
+<a class="jxr_linenumber" name="343" href="#343">343</a> 
+<a class="jxr_linenumber" name="344" href="#344">344</a>     <em class="jxr_comment">// check the instance is alive</em>
+<a class="jxr_linenumber" name="345" href="#345">345</a>     <a href="../../../../../org/apache/helix/model/LiveInstance.html">LiveInstance</a> liveInstance =
+<a class="jxr_linenumber" name="346" href="#346">346</a>         accessor.getProperty(keyBuilder.liveInstance(instanceName));
+<a class="jxr_linenumber" name="347" href="#347">347</a>     <strong class="jxr_keyword">if</strong> (liveInstance == <strong class="jxr_keyword">null</strong>)
 <a class="jxr_linenumber" name="348" href="#348">348</a>     {
 <a class="jxr_linenumber" name="349" href="#349">349</a>       <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/helix/HelixException.html">HelixException</a>(<span class="jxr_string">"Can't reset state for "</span> + resourceName + <span class="jxr_string">"/"</span>
-<a class="jxr_linenumber" name="350" href="#350">350</a>           + partitionNames + <span class="jxr_string">" on "</span> + instanceName + <span class="jxr_string">", because "</span> + resourceName
-<a class="jxr_linenumber" name="351" href="#351">351</a>           + <span class="jxr_string">" is not added"</span>);
+<a class="jxr_linenumber" name="350" href="#350">350</a>           + partitionNames + <span class="jxr_string">" on "</span> + instanceName + <span class="jxr_string">", because "</span> + instanceName
+<a class="jxr_linenumber" name="351" href="#351">351</a>           + <span class="jxr_string">" is not alive"</span>);
 <a class="jxr_linenumber" name="352" href="#352">352</a>     }
 <a class="jxr_linenumber" name="353" href="#353">353</a> 
-<a class="jxr_linenumber" name="354" href="#354">354</a>     <em class="jxr_comment">// check partition exists in resource group</em>
-<a class="jxr_linenumber" name="355" href="#355">355</a>     Set&lt;String&gt; resetPartitionNames = <strong class="jxr_keyword">new</strong> HashSet&lt;String&gt;(partitionNames);
-<a class="jxr_linenumber" name="356" href="#356">356</a>     <strong class="jxr_keyword">if</strong> (idealState.getIdealStateMode() == IdealStateModeProperty.CUSTOMIZED)
+<a class="jxr_linenumber" name="354" href="#354">354</a>     <em class="jxr_comment">// check resource group exists</em>
+<a class="jxr_linenumber" name="355" href="#355">355</a>     <a href="../../../../../org/apache/helix/model/IdealState.html">IdealState</a> idealState = accessor.getProperty(keyBuilder.idealStates(resourceName));
+<a class="jxr_linenumber" name="356" href="#356">356</a>     <strong class="jxr_keyword">if</strong> (idealState == <strong class="jxr_keyword">null</strong>)
 <a class="jxr_linenumber" name="357" href="#357">357</a>     {
-<a class="jxr_linenumber" name="358" href="#358">358</a>       Set&lt;String&gt; partitions =
-<a class="jxr_linenumber" name="359" href="#359">359</a>           <strong class="jxr_keyword">new</strong> HashSet&lt;String&gt;(idealState.getRecord().getMapFields().keySet());
-<a class="jxr_linenumber" name="360" href="#360">360</a>       <strong class="jxr_keyword">if</strong> (!partitions.containsAll(resetPartitionNames))
-<a class="jxr_linenumber" name="361" href="#361">361</a>       {
-<a class="jxr_linenumber" name="362" href="#362">362</a>         <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/helix/HelixException.html">HelixException</a>(<span class="jxr_string">"Can't reset state for "</span> + resourceName + <span class="jxr_string">"/"</span>
-<a class="jxr_linenumber" name="363" href="#363">363</a>             + partitionNames + <span class="jxr_string">" on "</span> + instanceName + <span class="jxr_string">", because not all "</span>
-<a class="jxr_linenumber" name="364" href="#364">364</a>             + partitionNames + <span class="jxr_string">" exist"</span>);
-<a class="jxr_linenumber" name="365" href="#365">365</a>       }
-<a class="jxr_linenumber" name="366" href="#366">366</a>     }
-<a class="jxr_linenumber" name="367" href="#367">367</a>     <strong class="jxr_keyword">else</strong>
-<a class="jxr_linenumber" name="368" href="#368">368</a>     {
-<a class="jxr_linenumber" name="369" href="#369">369</a>       Set&lt;String&gt; partitions =
-<a class="jxr_linenumber" name="370" href="#370">370</a>           <strong class="jxr_keyword">new</strong> HashSet&lt;String&gt;(idealState.getRecord().getListFields().keySet());
-<a class="jxr_linenumber" name="371" href="#371">371</a>       <strong class="jxr_keyword">if</strong> (!partitions.containsAll(resetPartitionNames))
-<a class="jxr_linenumber" name="372" href="#372">372</a>       {
-<a class="jxr_linenumber" name="373" href="#373">373</a>         <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/helix/HelixException.html">HelixException</a>(<span class="jxr_string">"Can't reset state for "</span> + resourceName + <span class="jxr_string">"/"</span>
-<a class="jxr_linenumber" name="374" href="#374">374</a>             + partitionNames + <span class="jxr_string">" on "</span> + instanceName + <span class="jxr_string">", because not all "</span>
-<a class="jxr_linenumber" name="375" href="#375">375</a>             + partitionNames + <span class="jxr_string">" exist"</span>);
-<a class="jxr_linenumber" name="376" href="#376">376</a>       }
-<a class="jxr_linenumber" name="377" href="#377">377</a>     }
-<a class="jxr_linenumber" name="378" href="#378">378</a> 
-<a class="jxr_linenumber" name="379" href="#379">379</a>     <em class="jxr_comment">// check partition is in ERROR state</em>
-<a class="jxr_linenumber" name="380" href="#380">380</a>     String sessionId = liveInstance.getSessionId();
-<a class="jxr_linenumber" name="381" href="#381">381</a>     <a href="../../../../../org/apache/helix/model/CurrentState.html">CurrentState</a> curState =
-<a class="jxr_linenumber" name="382" href="#382">382</a>         accessor.getProperty(keyBuilder.currentState(instanceName,
-<a class="jxr_linenumber" name="383" href="#383">383</a>                                                      sessionId,
-<a class="jxr_linenumber" name="384" href="#384">384</a>                                                      resourceName));
-<a class="jxr_linenumber" name="385" href="#385">385</a>     <strong class="jxr_keyword">for</strong> (String partitionName : resetPartitionNames)
-<a class="jxr_linenumber" name="386" href="#386">386</a>     {
-<a class="jxr_linenumber" name="387" href="#387">387</a>       <strong class="jxr_keyword">if</strong> (!curState.getState(partitionName).equals(<span class="jxr_string">"ERROR"</span>))
-<a class="jxr_linenumber" name="388" href="#388">388</a>       {
-<a class="jxr_linenumber" name="389" href="#389">389</a>         <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/helix/HelixException.html">HelixException</a>(<span class="jxr_string">"Can't reset state for "</span> + resourceName + <span class="jxr_string">"/"</span>
-<a class="jxr_linenumber" name="390" href="#390">390</a>             + partitionNames + <span class="jxr_string">" on "</span> + instanceName + <span class="jxr_string">", because not all "</span>
-<a class="jxr_linenumber" name="391" href="#391">391</a>             + partitionNames + <span class="jxr_string">" are in ERROR state"</span>);
-<a class="jxr_linenumber" name="392" href="#392">392</a>       }
-<a class="jxr_linenumber" name="393" href="#393">393</a>     }
-<a class="jxr_linenumber" name="394" href="#394">394</a> 
-<a class="jxr_linenumber" name="395" href="#395">395</a>     <em class="jxr_comment">// check stateModelDef exists and get initial state</em>
-<a class="jxr_linenumber" name="396" href="#396">396</a>     String stateModelDef = idealState.getStateModelDefRef();
-<a class="jxr_linenumber" name="397" href="#397">397</a>     <a href="../../../../../org/apache/helix/model/StateModelDefinition.html">StateModelDefinition</a> stateModel =
-<a class="jxr_linenumber" name="398" href="#398">398</a>         accessor.getProperty(keyBuilder.stateModelDef(stateModelDef));
-<a class="jxr_linenumber" name="399" href="#399">399</a>     <strong class="jxr_keyword">if</strong> (stateModel == <strong class="jxr_keyword">null</strong>)
-<a class="jxr_linenumber" name="400" href="#400">400</a>     {
-<a class="jxr_linenumber" name="401" href="#401">401</a>       <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/helix/HelixException.html">HelixException</a>(<span class="jxr_string">"Can't reset state for "</span> + resourceName + <span class="jxr_string">"/"</span>
-<a class="jxr_linenumber" name="402" href="#402">402</a>           + partitionNames + <span class="jxr_string">" on "</span> + instanceName + <span class="jxr_string">", because "</span> + stateModelDef
-<a class="jxr_linenumber" name="403" href="#403">403</a>           + <span class="jxr_string">" is NOT found"</span>);
-<a class="jxr_linenumber" name="404" href="#404">404</a>     }
-<a class="jxr_linenumber" name="405" href="#405">405</a> 
-<a class="jxr_linenumber" name="406" href="#406">406</a>     <em class="jxr_comment">// check there is no pending messages for the partitions exist</em>
-<a class="jxr_linenumber" name="407" href="#407">407</a>     List&lt;Message&gt; messages = accessor.getChildValues(keyBuilder.messages(instanceName));
-<a class="jxr_linenumber" name="408" href="#408">408</a>     <strong class="jxr_keyword">for</strong> (Message message : messages)
+<a class="jxr_linenumber" name="358" href="#358">358</a>       <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/helix/HelixException.html">HelixException</a>(<span class="jxr_string">"Can't reset state for "</span> + resourceName + <span class="jxr_string">"/"</span>
+<a class="jxr_linenumber" name="359" href="#359">359</a>           + partitionNames + <span class="jxr_string">" on "</span> + instanceName + <span class="jxr_string">", because "</span> + resourceName
+<a class="jxr_linenumber" name="360" href="#360">360</a>           + <span class="jxr_string">" is not added"</span>);
+<a class="jxr_linenumber" name="361" href="#361">361</a>     }
+<a class="jxr_linenumber" name="362" href="#362">362</a> 
+<a class="jxr_linenumber" name="363" href="#363">363</a>     <em class="jxr_comment">// check partition exists in resource group</em>
+<a class="jxr_linenumber" name="364" href="#364">364</a>     Set&lt;String&gt; resetPartitionNames = <strong class="jxr_keyword">new</strong> HashSet&lt;String&gt;(partitionNames);
+<a class="jxr_linenumber" name="365" href="#365">365</a>     <strong class="jxr_keyword">if</strong> (idealState.getIdealStateMode() == IdealStateModeProperty.CUSTOMIZED)
+<a class="jxr_linenumber" name="366" href="#366">366</a>     {
+<a class="jxr_linenumber" name="367" href="#367">367</a>       Set&lt;String&gt; partitions =
+<a class="jxr_linenumber" name="368" href="#368">368</a>           <strong class="jxr_keyword">new</strong> HashSet&lt;String&gt;(idealState.getRecord().getMapFields().keySet());
+<a class="jxr_linenumber" name="369" href="#369">369</a>       <strong class="jxr_keyword">if</strong> (!partitions.containsAll(resetPartitionNames))
+<a class="jxr_linenumber" name="370" href="#370">370</a>       {
+<a class="jxr_linenumber" name="371" href="#371">371</a>         <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/helix/HelixException.html">HelixException</a>(<span class="jxr_string">"Can't reset state for "</span> + resourceName + <span class="jxr_string">"/"</span>

[... 1774 lines stripped ...]


Mime
View raw message