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From "Gregory Chanan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-7746) Ping requests stopped working with distrib=true in Solr 5.2.1
Date Sat, 29 Aug 2015 01:27:45 GMT

    [ https://issues.apache.org/jira/browse/SOLR-7746?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14720887#comment-14720887
] 

Gregory Chanan commented on SOLR-7746:
--------------------------------------

Looks good, two minor comments:

{code}
+      req = new SolrPingWithDistrib();
+      req.setDistrib(false);
{code}

Just use a SolrPing here, if you can.

{code}
+      Map<String, String> collectionProperties = new HashMap<>();
+      collectionProperties.put(CoreDescriptor.CORE_CONFIG, "solrconfig-tlog.xml");
+      collectionProperties.put("solr.tests.maxBufferedDocs", "100000");
+      collectionProperties.put("solr.tests.ramBufferSizeMB", "100");
+      // use non-test classes so RandomizedRunner isn't necessary
+      collectionProperties.put("solr.tests.mergePolicy", "org.apache.lucene.index.TieredMergePolicy");
+      collectionProperties.put("solr.tests.mergeScheduler", "org.apache.lucene.index.ConcurrentMergeScheduler");
+      collectionProperties.put("solr.directoryFactory", "solr.RAMDirectoryFactory");
+      miniCluster.createCollection(collectionName, NUM_SHARDS, REPLICATION_FACTOR, configName,
collectionProperties);
{code}

I think all this complexity is necessary because of the configuration you are using.  Look
at ConcurrentDeleteAndCreateCollectionTest -- that uses the MiniSolrCloudCluster and creates
a collection without this complexity.

> Ping requests stopped working with distrib=true in Solr 5.2.1
> -------------------------------------------------------------
>
>                 Key: SOLR-7746
>                 URL: https://issues.apache.org/jira/browse/SOLR-7746
>             Project: Solr
>          Issue Type: Bug
>          Components: SolrCloud
>    Affects Versions: 5.2.1
>            Reporter: Alexey Serba
>         Attachments: SOLR-7746.patch, SOLR-7746.patch, SOLR-7746.patch, SOLR-7746.patch,
SOLR-7746.patch
>
>
> {noformat:title="steps to reproduce"}
> # start 1 node SolrCloud cluster
> sh> ./bin/solr -c -p 8888
> # create a test collection (we won’t use it, but I just want to it to load solr configs
to Zk)
> ./bin/solr create_collection -c test -d sample_techproducts_configs -p 8888
> # create another test collection with 2 shards
> curl 'http://localhost:8888/solr/admin/collections?action=CREATE&name=test2&numShards=2&replicationFactor=1&maxShardsPerNode=2&collection.configName=test'
> # try distrib ping request
> curl 'http://localhost:8888/solr/test2/admin/ping?wt=json&distrib=true&indent=true'
> ...
>   "error":{
>     "msg":"Ping query caused exception: Error from server at http://192.168.59.3:8888/solr/test2_shard2_replica1:
Cannot execute the PingRequestHandler recursively"
> ...
> {noformat}
> {noformat:title="Exception"}
> 2116962 [qtp599601600-13] ERROR org.apache.solr.core.SolrCore  [test2 shard2 core_node1
test2_shard2_replica1] – org.apache.solr.common.SolrException: Cannot execute the PingRequestHandler
recursively
> 	at org.apache.solr.handler.PingRequestHandler.handlePing(PingRequestHandler.java:246)
> 	at org.apache.solr.handler.PingRequestHandler.handleRequestBody(PingRequestHandler.java:211)
> 	at org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:143)
> 	at org.apache.solr.core.SolrCore.execute(SolrCore.java:2064)
> 	at org.apache.solr.servlet.HttpSolrCall.execute(HttpSolrCall.java:654)
> 	at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:450)
> 	at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:227)
> 	at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:196)
> {noformat}



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