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From ak...@apache.org
Subject sentry git commit: SENTRY-1600: Define Thrift API for HMS to Sentry notification barrier (Alex Kolbasov, Reviewed by: Hao Hao and Kalyan Kalvagadda)
Date Tue, 28 Feb 2017 22:21:38 GMT
Repository: sentry
Updated Branches:
  refs/heads/sentry-ha-redesign 71f476985 -> f783277f8


SENTRY-1600: Define Thrift API for HMS to Sentry notification barrier (Alex Kolbasov, Reviewed by: Hao Hao and Kalyan Kalvagadda)


Project: http://git-wip-us.apache.org/repos/asf/sentry/repo
Commit: http://git-wip-us.apache.org/repos/asf/sentry/commit/f783277f
Tree: http://git-wip-us.apache.org/repos/asf/sentry/tree/f783277f
Diff: http://git-wip-us.apache.org/repos/asf/sentry/diff/f783277f

Branch: refs/heads/sentry-ha-redesign
Commit: f783277f821dd7698fc143a78858459181328318
Parents: 71f4769
Author: Alexander Kolbasov <akolb@cloudera.com>
Authored: Tue Feb 28 14:21:12 2017 -0800
Committer: Alexander Kolbasov <akolb@cloudera.com>
Committed: Tue Feb 28 14:21:12 2017 -0800

----------------------------------------------------------------------
 .../db/service/thrift/SentryPolicyService.java  | 860 ++++++++++++++++++-
 .../db/service/thrift/TSentrySyncIDRequest.java | 484 +++++++++++
 .../service/thrift/TSentrySyncIDResponse.java   | 387 +++++++++
 .../thrift/SentryPolicyStoreProcessor.java      |   5 +
 .../main/resources/sentry_policy_service.thrift |  34 +
 5 files changed, 1769 insertions(+), 1 deletion(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/sentry/blob/f783277f/sentry-provider/sentry-provider-db/src/gen/thrift/gen-javabean/org/apache/sentry/provider/db/service/thrift/SentryPolicyService.java
----------------------------------------------------------------------
diff --git a/sentry-provider/sentry-provider-db/src/gen/thrift/gen-javabean/org/apache/sentry/provider/db/service/thrift/SentryPolicyService.java b/sentry-provider/sentry-provider-db/src/gen/thrift/gen-javabean/org/apache/sentry/provider/db/service/thrift/SentryPolicyService.java
index 521a7db..2dd1caa 100644
--- a/sentry-provider/sentry-provider-db/src/gen/thrift/gen-javabean/org/apache/sentry/provider/db/service/thrift/SentryPolicyService.java
+++ b/sentry-provider/sentry-provider-db/src/gen/thrift/gen-javabean/org/apache/sentry/provider/db/service/thrift/SentryPolicyService.java
@@ -34,7 +34,7 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 @SuppressWarnings({"cast", "rawtypes", "serial", "unchecked"})
-@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2016-05-05")
+@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2017-02-24")
 public class SentryPolicyService {
 
   public interface Iface {
@@ -75,6 +75,8 @@ public class SentryPolicyService {
 
     public TSentryImportMappingDataResponse import_sentry_mapping_data(TSentryImportMappingDataRequest request) throws org.apache.thrift.TException;
 
+    public TSentrySyncIDResponse sentry_sync_notifications(TSentrySyncIDRequest request) throws org.apache.thrift.TException;
+
   }
 
   public interface AsyncIface {
@@ -115,6 +117,8 @@ public class SentryPolicyService {
 
     public void import_sentry_mapping_data(TSentryImportMappingDataRequest request, org.apache.thrift.async.AsyncMethodCallback resultHandler) throws org.apache.thrift.TException;
 
+    public void sentry_sync_notifications(TSentrySyncIDRequest request, org.apache.thrift.async.AsyncMethodCallback resultHandler) throws org.apache.thrift.TException;
+
   }
 
   public static class Client extends org.apache.thrift.TServiceClient implements Iface {
@@ -551,6 +555,29 @@ public class SentryPolicyService {
       throw new org.apache.thrift.TApplicationException(org.apache.thrift.TApplicationException.MISSING_RESULT, "import_sentry_mapping_data failed: unknown result");
     }
 
+    public TSentrySyncIDResponse sentry_sync_notifications(TSentrySyncIDRequest request) throws org.apache.thrift.TException
+    {
+      send_sentry_sync_notifications(request);
+      return recv_sentry_sync_notifications();
+    }
+
+    public void send_sentry_sync_notifications(TSentrySyncIDRequest request) throws org.apache.thrift.TException
+    {
+      sentry_sync_notifications_args args = new sentry_sync_notifications_args();
+      args.setRequest(request);
+      sendBase("sentry_sync_notifications", args);
+    }
+
+    public TSentrySyncIDResponse recv_sentry_sync_notifications() throws org.apache.thrift.TException
+    {
+      sentry_sync_notifications_result result = new sentry_sync_notifications_result();
+      receiveBase(result, "sentry_sync_notifications");
+      if (result.isSetSuccess()) {
+        return result.success;
+      }
+      throw new org.apache.thrift.TApplicationException(org.apache.thrift.TApplicationException.MISSING_RESULT, "sentry_sync_notifications failed: unknown result");
+    }
+
   }
   public static class AsyncClient extends org.apache.thrift.async.TAsyncClient implements AsyncIface {
     public static class Factory implements org.apache.thrift.async.TAsyncClientFactory<AsyncClient> {
@@ -1145,6 +1172,38 @@ public class SentryPolicyService {
       }
     }
 
+    public void sentry_sync_notifications(TSentrySyncIDRequest request, org.apache.thrift.async.AsyncMethodCallback resultHandler) throws org.apache.thrift.TException {
+      checkReady();
+      sentry_sync_notifications_call method_call = new sentry_sync_notifications_call(request, resultHandler, this, ___protocolFactory, ___transport);
+      this.___currentMethod = method_call;
+      ___manager.call(method_call);
+    }
+
+    public static class sentry_sync_notifications_call extends org.apache.thrift.async.TAsyncMethodCall {
+      private TSentrySyncIDRequest request;
+      public sentry_sync_notifications_call(TSentrySyncIDRequest request, org.apache.thrift.async.AsyncMethodCallback resultHandler, org.apache.thrift.async.TAsyncClient client, org.apache.thrift.protocol.TProtocolFactory protocolFactory, org.apache.thrift.transport.TNonblockingTransport transport) throws org.apache.thrift.TException {
+        super(client, protocolFactory, transport, resultHandler, false);
+        this.request = request;
+      }
+
+      public void write_args(org.apache.thrift.protocol.TProtocol prot) throws org.apache.thrift.TException {
+        prot.writeMessageBegin(new org.apache.thrift.protocol.TMessage("sentry_sync_notifications", org.apache.thrift.protocol.TMessageType.CALL, 0));
+        sentry_sync_notifications_args args = new sentry_sync_notifications_args();
+        args.setRequest(request);
+        args.write(prot);
+        prot.writeMessageEnd();
+      }
+
+      public TSentrySyncIDResponse getResult() throws org.apache.thrift.TException {
+        if (getState() != org.apache.thrift.async.TAsyncMethodCall.State.RESPONSE_READ) {
+          throw new IllegalStateException("Method call not finished!");
+        }
+        org.apache.thrift.transport.TMemoryInputTransport memoryTransport = new org.apache.thrift.transport.TMemoryInputTransport(getFrameBuffer().array());
+        org.apache.thrift.protocol.TProtocol prot = client.getProtocolFactory().getProtocol(memoryTransport);
+        return (new Client(prot)).recv_sentry_sync_notifications();
+      }
+    }
+
   }
 
   public static class Processor<I extends Iface> extends org.apache.thrift.TBaseProcessor<I> implements org.apache.thrift.TProcessor {
@@ -1176,6 +1235,7 @@ public class SentryPolicyService {
       processMap.put("get_sentry_config_value", new get_sentry_config_value());
       processMap.put("export_sentry_mapping_data", new export_sentry_mapping_data());
       processMap.put("import_sentry_mapping_data", new import_sentry_mapping_data());
+      processMap.put("sentry_sync_notifications", new sentry_sync_notifications());
       return processMap;
     }
 
@@ -1539,6 +1599,26 @@ public class SentryPolicyService {
       }
     }
 
+    public static class sentry_sync_notifications<I extends Iface> extends org.apache.thrift.ProcessFunction<I, sentry_sync_notifications_args> {
+      public sentry_sync_notifications() {
+        super("sentry_sync_notifications");
+      }
+
+      public sentry_sync_notifications_args getEmptyArgsInstance() {
+        return new sentry_sync_notifications_args();
+      }
+
+      protected boolean isOneway() {
+        return false;
+      }
+
+      public sentry_sync_notifications_result getResult(I iface, sentry_sync_notifications_args args) throws org.apache.thrift.TException {
+        sentry_sync_notifications_result result = new sentry_sync_notifications_result();
+        result.success = iface.sentry_sync_notifications(args.request);
+        return result;
+      }
+    }
+
   }
 
   public static class AsyncProcessor<I extends AsyncIface> extends org.apache.thrift.TBaseAsyncProcessor<I> {
@@ -1570,6 +1650,7 @@ public class SentryPolicyService {
       processMap.put("get_sentry_config_value", new get_sentry_config_value());
       processMap.put("export_sentry_mapping_data", new export_sentry_mapping_data());
       processMap.put("import_sentry_mapping_data", new import_sentry_mapping_data());
+      processMap.put("sentry_sync_notifications", new sentry_sync_notifications());
       return processMap;
     }
 
@@ -2491,6 +2572,57 @@ public class SentryPolicyService {
       }
     }
 
+    public static class sentry_sync_notifications<I extends AsyncIface> extends org.apache.thrift.AsyncProcessFunction<I, sentry_sync_notifications_args, TSentrySyncIDResponse> {
+      public sentry_sync_notifications() {
+        super("sentry_sync_notifications");
+      }
+
+      public sentry_sync_notifications_args getEmptyArgsInstance() {
+        return new sentry_sync_notifications_args();
+      }
+
+      public AsyncMethodCallback<TSentrySyncIDResponse> getResultHandler(final AsyncFrameBuffer fb, final int seqid) {
+        final org.apache.thrift.AsyncProcessFunction fcall = this;
+        return new AsyncMethodCallback<TSentrySyncIDResponse>() { 
+          public void onComplete(TSentrySyncIDResponse o) {
+            sentry_sync_notifications_result result = new sentry_sync_notifications_result();
+            result.success = o;
+            try {
+              fcall.sendResponse(fb,result, org.apache.thrift.protocol.TMessageType.REPLY,seqid);
+              return;
+            } catch (Exception e) {
+              LOGGER.error("Exception writing to internal frame buffer", e);
+            }
+            fb.close();
+          }
+          public void onError(Exception e) {
+            byte msgType = org.apache.thrift.protocol.TMessageType.REPLY;
+            org.apache.thrift.TBase msg;
+            sentry_sync_notifications_result result = new sentry_sync_notifications_result();
+            {
+              msgType = org.apache.thrift.protocol.TMessageType.EXCEPTION;
+              msg = (org.apache.thrift.TBase)new org.apache.thrift.TApplicationException(org.apache.thrift.TApplicationException.INTERNAL_ERROR, e.getMessage());
+            }
+            try {
+              fcall.sendResponse(fb,msg,msgType,seqid);
+              return;
+            } catch (Exception ex) {
+              LOGGER.error("Exception writing to internal frame buffer", ex);
+            }
+            fb.close();
+          }
+        };
+      }
+
+      protected boolean isOneway() {
+        return false;
+      }
+
+      public void start(I iface, sentry_sync_notifications_args args, org.apache.thrift.async.AsyncMethodCallback<TSentrySyncIDResponse> resultHandler) throws TException {
+        iface.sentry_sync_notifications(args.request,resultHandler);
+      }
+    }
+
   }
 
   public static class create_sentry_role_args implements org.apache.thrift.TBase<create_sentry_role_args, create_sentry_role_args._Fields>, java.io.Serializable, Cloneable, Comparable<create_sentry_role_args>   {
@@ -15561,4 +15693,730 @@ public class SentryPolicyService {
 
   }
 
+  public static class sentry_sync_notifications_args implements org.apache.thrift.TBase<sentry_sync_notifications_args, sentry_sync_notifications_args._Fields>, java.io.Serializable, Cloneable, Comparable<sentry_sync_notifications_args>   {
+    private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("sentry_sync_notifications_args");
+
+    private static final org.apache.thrift.protocol.TField REQUEST_FIELD_DESC = new org.apache.thrift.protocol.TField("request", org.apache.thrift.protocol.TType.STRUCT, (short)1);
+
+    private static final Map<Class<? extends IScheme>, SchemeFactory> schemes = new HashMap<Class<? extends IScheme>, SchemeFactory>();
+    static {
+      schemes.put(StandardScheme.class, new sentry_sync_notifications_argsStandardSchemeFactory());
+      schemes.put(TupleScheme.class, new sentry_sync_notifications_argsTupleSchemeFactory());
+    }
+
+    private TSentrySyncIDRequest request; // required
+
+    /** The set of fields this struct contains, along with convenience methods for finding and manipulating them. */
+    public enum _Fields implements org.apache.thrift.TFieldIdEnum {
+      REQUEST((short)1, "request");
+
+      private static final Map<String, _Fields> byName = new HashMap<String, _Fields>();
+
+      static {
+        for (_Fields field : EnumSet.allOf(_Fields.class)) {
+          byName.put(field.getFieldName(), field);
+        }
+      }
+
+      /**
+       * Find the _Fields constant that matches fieldId, or null if its not found.
+       */
+      public static _Fields findByThriftId(int fieldId) {
+        switch(fieldId) {
+          case 1: // REQUEST
+            return REQUEST;
+          default:
+            return null;
+        }
+      }
+
+      /**
+       * Find the _Fields constant that matches fieldId, throwing an exception
+       * if it is not found.
+       */
+      public static _Fields findByThriftIdOrThrow(int fieldId) {
+        _Fields fields = findByThriftId(fieldId);
+        if (fields == null) throw new IllegalArgumentException("Field " + fieldId + " doesn't exist!");
+        return fields;
+      }
+
+      /**
+       * Find the _Fields constant that matches name, or null if its not found.
+       */
+      public static _Fields findByName(String name) {
+        return byName.get(name);
+      }
+
+      private final short _thriftId;
+      private final String _fieldName;
+
+      _Fields(short thriftId, String fieldName) {
+        _thriftId = thriftId;
+        _fieldName = fieldName;
+      }
+
+      public short getThriftFieldId() {
+        return _thriftId;
+      }
+
+      public String getFieldName() {
+        return _fieldName;
+      }
+    }
+
+    // isset id assignments
+    public static final Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> metaDataMap;
+    static {
+      Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> tmpMap = new EnumMap<_Fields, org.apache.thrift.meta_data.FieldMetaData>(_Fields.class);
+      tmpMap.put(_Fields.REQUEST, new org.apache.thrift.meta_data.FieldMetaData("request", org.apache.thrift.TFieldRequirementType.DEFAULT, 
+          new org.apache.thrift.meta_data.StructMetaData(org.apache.thrift.protocol.TType.STRUCT, TSentrySyncIDRequest.class)));
+      metaDataMap = Collections.unmodifiableMap(tmpMap);
+      org.apache.thrift.meta_data.FieldMetaData.addStructMetaDataMap(sentry_sync_notifications_args.class, metaDataMap);
+    }
+
+    public sentry_sync_notifications_args() {
+    }
+
+    public sentry_sync_notifications_args(
+      TSentrySyncIDRequest request)
+    {
+      this();
+      this.request = request;
+    }
+
+    /**
+     * Performs a deep copy on <i>other</i>.
+     */
+    public sentry_sync_notifications_args(sentry_sync_notifications_args other) {
+      if (other.isSetRequest()) {
+        this.request = new TSentrySyncIDRequest(other.request);
+      }
+    }
+
+    public sentry_sync_notifications_args deepCopy() {
+      return new sentry_sync_notifications_args(this);
+    }
+
+    @Override
+    public void clear() {
+      this.request = null;
+    }
+
+    public TSentrySyncIDRequest getRequest() {
+      return this.request;
+    }
+
+    public void setRequest(TSentrySyncIDRequest request) {
+      this.request = request;
+    }
+
+    public void unsetRequest() {
+      this.request = null;
+    }
+
+    /** Returns true if field request is set (has been assigned a value) and false otherwise */
+    public boolean isSetRequest() {
+      return this.request != null;
+    }
+
+    public void setRequestIsSet(boolean value) {
+      if (!value) {
+        this.request = null;
+      }
+    }
+
+    public void setFieldValue(_Fields field, Object value) {
+      switch (field) {
+      case REQUEST:
+        if (value == null) {
+          unsetRequest();
+        } else {
+          setRequest((TSentrySyncIDRequest)value);
+        }
+        break;
+
+      }
+    }
+
+    public Object getFieldValue(_Fields field) {
+      switch (field) {
+      case REQUEST:
+        return getRequest();
+
+      }
+      throw new IllegalStateException();
+    }
+
+    /** Returns true if field corresponding to fieldID is set (has been assigned a value) and false otherwise */
+    public boolean isSet(_Fields field) {
+      if (field == null) {
+        throw new IllegalArgumentException();
+      }
+
+      switch (field) {
+      case REQUEST:
+        return isSetRequest();
+      }
+      throw new IllegalStateException();
+    }
+
+    @Override
+    public boolean equals(Object that) {
+      if (that == null)
+        return false;
+      if (that instanceof sentry_sync_notifications_args)
+        return this.equals((sentry_sync_notifications_args)that);
+      return false;
+    }
+
+    public boolean equals(sentry_sync_notifications_args that) {
+      if (that == null)
+        return false;
+
+      boolean this_present_request = true && this.isSetRequest();
+      boolean that_present_request = true && that.isSetRequest();
+      if (this_present_request || that_present_request) {
+        if (!(this_present_request && that_present_request))
+          return false;
+        if (!this.request.equals(that.request))
+          return false;
+      }
+
+      return true;
+    }
+
+    @Override
+    public int hashCode() {
+      List<Object> list = new ArrayList<Object>();
+
+      boolean present_request = true && (isSetRequest());
+      list.add(present_request);
+      if (present_request)
+        list.add(request);
+
+      return list.hashCode();
+    }
+
+    @Override
+    public int compareTo(sentry_sync_notifications_args other) {
+      if (!getClass().equals(other.getClass())) {
+        return getClass().getName().compareTo(other.getClass().getName());
+      }
+
+      int lastComparison = 0;
+
+      lastComparison = Boolean.valueOf(isSetRequest()).compareTo(other.isSetRequest());
+      if (lastComparison != 0) {
+        return lastComparison;
+      }
+      if (isSetRequest()) {
+        lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.request, other.request);
+        if (lastComparison != 0) {
+          return lastComparison;
+        }
+      }
+      return 0;
+    }
+
+    public _Fields fieldForId(int fieldId) {
+      return _Fields.findByThriftId(fieldId);
+    }
+
+    public void read(org.apache.thrift.protocol.TProtocol iprot) throws org.apache.thrift.TException {
+      schemes.get(iprot.getScheme()).getScheme().read(iprot, this);
+    }
+
+    public void write(org.apache.thrift.protocol.TProtocol oprot) throws org.apache.thrift.TException {
+      schemes.get(oprot.getScheme()).getScheme().write(oprot, this);
+    }
+
+    @Override
+    public String toString() {
+      StringBuilder sb = new StringBuilder("sentry_sync_notifications_args(");
+      boolean first = true;
+
+      sb.append("request:");
+      if (this.request == null) {
+        sb.append("null");
+      } else {
+        sb.append(this.request);
+      }
+      first = false;
+      sb.append(")");
+      return sb.toString();
+    }
+
+    public void validate() throws org.apache.thrift.TException {
+      // check for required fields
+      // check for sub-struct validity
+      if (request != null) {
+        request.validate();
+      }
+    }
+
+    private void writeObject(java.io.ObjectOutputStream out) throws java.io.IOException {
+      try {
+        write(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(out)));
+      } catch (org.apache.thrift.TException te) {
+        throw new java.io.IOException(te);
+      }
+    }
+
+    private void readObject(java.io.ObjectInputStream in) throws java.io.IOException, ClassNotFoundException {
+      try {
+        read(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(in)));
+      } catch (org.apache.thrift.TException te) {
+        throw new java.io.IOException(te);
+      }
+    }
+
+    private static class sentry_sync_notifications_argsStandardSchemeFactory implements SchemeFactory {
+      public sentry_sync_notifications_argsStandardScheme getScheme() {
+        return new sentry_sync_notifications_argsStandardScheme();
+      }
+    }
+
+    private static class sentry_sync_notifications_argsStandardScheme extends StandardScheme<sentry_sync_notifications_args> {
+
+      public void read(org.apache.thrift.protocol.TProtocol iprot, sentry_sync_notifications_args struct) throws org.apache.thrift.TException {
+        org.apache.thrift.protocol.TField schemeField;
+        iprot.readStructBegin();
+        while (true)
+        {
+          schemeField = iprot.readFieldBegin();
+          if (schemeField.type == org.apache.thrift.protocol.TType.STOP) { 
+            break;
+          }
+          switch (schemeField.id) {
+            case 1: // REQUEST
+              if (schemeField.type == org.apache.thrift.protocol.TType.STRUCT) {
+                struct.request = new TSentrySyncIDRequest();
+                struct.request.read(iprot);
+                struct.setRequestIsSet(true);
+              } else { 
+                org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+              }
+              break;
+            default:
+              org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+          }
+          iprot.readFieldEnd();
+        }
+        iprot.readStructEnd();
+        struct.validate();
+      }
+
+      public void write(org.apache.thrift.protocol.TProtocol oprot, sentry_sync_notifications_args struct) throws org.apache.thrift.TException {
+        struct.validate();
+
+        oprot.writeStructBegin(STRUCT_DESC);
+        if (struct.request != null) {
+          oprot.writeFieldBegin(REQUEST_FIELD_DESC);
+          struct.request.write(oprot);
+          oprot.writeFieldEnd();
+        }
+        oprot.writeFieldStop();
+        oprot.writeStructEnd();
+      }
+
+    }
+
+    private static class sentry_sync_notifications_argsTupleSchemeFactory implements SchemeFactory {
+      public sentry_sync_notifications_argsTupleScheme getScheme() {
+        return new sentry_sync_notifications_argsTupleScheme();
+      }
+    }
+
+    private static class sentry_sync_notifications_argsTupleScheme extends TupleScheme<sentry_sync_notifications_args> {
+
+      @Override
+      public void write(org.apache.thrift.protocol.TProtocol prot, sentry_sync_notifications_args struct) throws org.apache.thrift.TException {
+        TTupleProtocol oprot = (TTupleProtocol) prot;
+        BitSet optionals = new BitSet();
+        if (struct.isSetRequest()) {
+          optionals.set(0);
+        }
+        oprot.writeBitSet(optionals, 1);
+        if (struct.isSetRequest()) {
+          struct.request.write(oprot);
+        }
+      }
+
+      @Override
+      public void read(org.apache.thrift.protocol.TProtocol prot, sentry_sync_notifications_args struct) throws org.apache.thrift.TException {
+        TTupleProtocol iprot = (TTupleProtocol) prot;
+        BitSet incoming = iprot.readBitSet(1);
+        if (incoming.get(0)) {
+          struct.request = new TSentrySyncIDRequest();
+          struct.request.read(iprot);
+          struct.setRequestIsSet(true);
+        }
+      }
+    }
+
+  }
+
+  public static class sentry_sync_notifications_result implements org.apache.thrift.TBase<sentry_sync_notifications_result, sentry_sync_notifications_result._Fields>, java.io.Serializable, Cloneable, Comparable<sentry_sync_notifications_result>   {
+    private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("sentry_sync_notifications_result");
+
+    private static final org.apache.thrift.protocol.TField SUCCESS_FIELD_DESC = new org.apache.thrift.protocol.TField("success", org.apache.thrift.protocol.TType.STRUCT, (short)0);
+
+    private static final Map<Class<? extends IScheme>, SchemeFactory> schemes = new HashMap<Class<? extends IScheme>, SchemeFactory>();
+    static {
+      schemes.put(StandardScheme.class, new sentry_sync_notifications_resultStandardSchemeFactory());
+      schemes.put(TupleScheme.class, new sentry_sync_notifications_resultTupleSchemeFactory());
+    }
+
+    private TSentrySyncIDResponse success; // required
+
+    /** The set of fields this struct contains, along with convenience methods for finding and manipulating them. */
+    public enum _Fields implements org.apache.thrift.TFieldIdEnum {
+      SUCCESS((short)0, "success");
+
+      private static final Map<String, _Fields> byName = new HashMap<String, _Fields>();
+
+      static {
+        for (_Fields field : EnumSet.allOf(_Fields.class)) {
+          byName.put(field.getFieldName(), field);
+        }
+      }
+
+      /**
+       * Find the _Fields constant that matches fieldId, or null if its not found.
+       */
+      public static _Fields findByThriftId(int fieldId) {
+        switch(fieldId) {
+          case 0: // SUCCESS
+            return SUCCESS;
+          default:
+            return null;
+        }
+      }
+
+      /**
+       * Find the _Fields constant that matches fieldId, throwing an exception
+       * if it is not found.
+       */
+      public static _Fields findByThriftIdOrThrow(int fieldId) {
+        _Fields fields = findByThriftId(fieldId);
+        if (fields == null) throw new IllegalArgumentException("Field " + fieldId + " doesn't exist!");
+        return fields;
+      }
+
+      /**
+       * Find the _Fields constant that matches name, or null if its not found.
+       */
+      public static _Fields findByName(String name) {
+        return byName.get(name);
+      }
+
+      private final short _thriftId;
+      private final String _fieldName;
+
+      _Fields(short thriftId, String fieldName) {
+        _thriftId = thriftId;
+        _fieldName = fieldName;
+      }
+
+      public short getThriftFieldId() {
+        return _thriftId;
+      }
+
+      public String getFieldName() {
+        return _fieldName;
+      }
+    }
+
+    // isset id assignments
+    public static final Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> metaDataMap;
+    static {
+      Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> tmpMap = new EnumMap<_Fields, org.apache.thrift.meta_data.FieldMetaData>(_Fields.class);
+      tmpMap.put(_Fields.SUCCESS, new org.apache.thrift.meta_data.FieldMetaData("success", org.apache.thrift.TFieldRequirementType.DEFAULT, 
+          new org.apache.thrift.meta_data.StructMetaData(org.apache.thrift.protocol.TType.STRUCT, TSentrySyncIDResponse.class)));
+      metaDataMap = Collections.unmodifiableMap(tmpMap);
+      org.apache.thrift.meta_data.FieldMetaData.addStructMetaDataMap(sentry_sync_notifications_result.class, metaDataMap);
+    }
+
+    public sentry_sync_notifications_result() {
+    }
+
+    public sentry_sync_notifications_result(
+      TSentrySyncIDResponse success)
+    {
+      this();
+      this.success = success;
+    }
+
+    /**
+     * Performs a deep copy on <i>other</i>.
+     */
+    public sentry_sync_notifications_result(sentry_sync_notifications_result other) {
+      if (other.isSetSuccess()) {
+        this.success = new TSentrySyncIDResponse(other.success);
+      }
+    }
+
+    public sentry_sync_notifications_result deepCopy() {
+      return new sentry_sync_notifications_result(this);
+    }
+
+    @Override
+    public void clear() {
+      this.success = null;
+    }
+
+    public TSentrySyncIDResponse getSuccess() {
+      return this.success;
+    }
+
+    public void setSuccess(TSentrySyncIDResponse success) {
+      this.success = success;
+    }
+
+    public void unsetSuccess() {
+      this.success = null;
+    }
+
+    /** Returns true if field success is set (has been assigned a value) and false otherwise */
+    public boolean isSetSuccess() {
+      return this.success != null;
+    }
+
+    public void setSuccessIsSet(boolean value) {
+      if (!value) {
+        this.success = null;
+      }
+    }
+
+    public void setFieldValue(_Fields field, Object value) {
+      switch (field) {
+      case SUCCESS:
+        if (value == null) {
+          unsetSuccess();
+        } else {
+          setSuccess((TSentrySyncIDResponse)value);
+        }
+        break;
+
+      }
+    }
+
+    public Object getFieldValue(_Fields field) {
+      switch (field) {
+      case SUCCESS:
+        return getSuccess();
+
+      }
+      throw new IllegalStateException();
+    }
+
+    /** Returns true if field corresponding to fieldID is set (has been assigned a value) and false otherwise */
+    public boolean isSet(_Fields field) {
+      if (field == null) {
+        throw new IllegalArgumentException();
+      }
+
+      switch (field) {
+      case SUCCESS:
+        return isSetSuccess();
+      }
+      throw new IllegalStateException();
+    }
+
+    @Override
+    public boolean equals(Object that) {
+      if (that == null)
+        return false;
+      if (that instanceof sentry_sync_notifications_result)
+        return this.equals((sentry_sync_notifications_result)that);
+      return false;
+    }
+
+    public boolean equals(sentry_sync_notifications_result that) {
+      if (that == null)
+        return false;
+
+      boolean this_present_success = true && this.isSetSuccess();
+      boolean that_present_success = true && that.isSetSuccess();
+      if (this_present_success || that_present_success) {
+        if (!(this_present_success && that_present_success))
+          return false;
+        if (!this.success.equals(that.success))
+          return false;
+      }
+
+      return true;
+    }
+
+    @Override
+    public int hashCode() {
+      List<Object> list = new ArrayList<Object>();
+
+      boolean present_success = true && (isSetSuccess());
+      list.add(present_success);
+      if (present_success)
+        list.add(success);
+
+      return list.hashCode();
+    }
+
+    @Override
+    public int compareTo(sentry_sync_notifications_result other) {
+      if (!getClass().equals(other.getClass())) {
+        return getClass().getName().compareTo(other.getClass().getName());
+      }
+
+      int lastComparison = 0;
+
+      lastComparison = Boolean.valueOf(isSetSuccess()).compareTo(other.isSetSuccess());
+      if (lastComparison != 0) {
+        return lastComparison;
+      }
+      if (isSetSuccess()) {
+        lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.success, other.success);
+        if (lastComparison != 0) {
+          return lastComparison;
+        }
+      }
+      return 0;
+    }
+
+    public _Fields fieldForId(int fieldId) {
+      return _Fields.findByThriftId(fieldId);
+    }
+
+    public void read(org.apache.thrift.protocol.TProtocol iprot) throws org.apache.thrift.TException {
+      schemes.get(iprot.getScheme()).getScheme().read(iprot, this);
+    }
+
+    public void write(org.apache.thrift.protocol.TProtocol oprot) throws org.apache.thrift.TException {
+      schemes.get(oprot.getScheme()).getScheme().write(oprot, this);
+      }
+
+    @Override
+    public String toString() {
+      StringBuilder sb = new StringBuilder("sentry_sync_notifications_result(");
+      boolean first = true;
+
+      sb.append("success:");
+      if (this.success == null) {
+        sb.append("null");
+      } else {
+        sb.append(this.success);
+      }
+      first = false;
+      sb.append(")");
+      return sb.toString();
+    }
+
+    public void validate() throws org.apache.thrift.TException {
+      // check for required fields
+      // check for sub-struct validity
+      if (success != null) {
+        success.validate();
+      }
+    }
+
+    private void writeObject(java.io.ObjectOutputStream out) throws java.io.IOException {
+      try {
+        write(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(out)));
+      } catch (org.apache.thrift.TException te) {
+        throw new java.io.IOException(te);
+      }
+    }
+
+    private void readObject(java.io.ObjectInputStream in) throws java.io.IOException, ClassNotFoundException {
+      try {
+        read(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(in)));
+      } catch (org.apache.thrift.TException te) {
+        throw new java.io.IOException(te);
+      }
+    }
+
+    private static class sentry_sync_notifications_resultStandardSchemeFactory implements SchemeFactory {
+      public sentry_sync_notifications_resultStandardScheme getScheme() {
+        return new sentry_sync_notifications_resultStandardScheme();
+      }
+    }
+
+    private static class sentry_sync_notifications_resultStandardScheme extends StandardScheme<sentry_sync_notifications_result> {
+
+      public void read(org.apache.thrift.protocol.TProtocol iprot, sentry_sync_notifications_result struct) throws org.apache.thrift.TException {
+        org.apache.thrift.protocol.TField schemeField;
+        iprot.readStructBegin();
+        while (true)
+        {
+          schemeField = iprot.readFieldBegin();
+          if (schemeField.type == org.apache.thrift.protocol.TType.STOP) { 
+            break;
+          }
+          switch (schemeField.id) {
+            case 0: // SUCCESS
+              if (schemeField.type == org.apache.thrift.protocol.TType.STRUCT) {
+                struct.success = new TSentrySyncIDResponse();
+                struct.success.read(iprot);
+                struct.setSuccessIsSet(true);
+              } else { 
+                org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+              }
+              break;
+            default:
+              org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+          }
+          iprot.readFieldEnd();
+        }
+        iprot.readStructEnd();
+        struct.validate();
+      }
+
+      public void write(org.apache.thrift.protocol.TProtocol oprot, sentry_sync_notifications_result struct) throws org.apache.thrift.TException {
+        struct.validate();
+
+        oprot.writeStructBegin(STRUCT_DESC);
+        if (struct.success != null) {
+          oprot.writeFieldBegin(SUCCESS_FIELD_DESC);
+          struct.success.write(oprot);
+          oprot.writeFieldEnd();
+        }
+        oprot.writeFieldStop();
+        oprot.writeStructEnd();
+      }
+
+    }
+
+    private static class sentry_sync_notifications_resultTupleSchemeFactory implements SchemeFactory {
+      public sentry_sync_notifications_resultTupleScheme getScheme() {
+        return new sentry_sync_notifications_resultTupleScheme();
+      }
+    }
+
+    private static class sentry_sync_notifications_resultTupleScheme extends TupleScheme<sentry_sync_notifications_result> {
+
+      @Override
+      public void write(org.apache.thrift.protocol.TProtocol prot, sentry_sync_notifications_result struct) throws org.apache.thrift.TException {
+        TTupleProtocol oprot = (TTupleProtocol) prot;
+        BitSet optionals = new BitSet();
+        if (struct.isSetSuccess()) {
+          optionals.set(0);
+        }
+        oprot.writeBitSet(optionals, 1);
+        if (struct.isSetSuccess()) {
+          struct.success.write(oprot);
+        }
+      }
+
+      @Override
+      public void read(org.apache.thrift.protocol.TProtocol prot, sentry_sync_notifications_result struct) throws org.apache.thrift.TException {
+        TTupleProtocol iprot = (TTupleProtocol) prot;
+        BitSet incoming = iprot.readBitSet(1);
+        if (incoming.get(0)) {
+          struct.success = new TSentrySyncIDResponse();
+          struct.success.read(iprot);
+          struct.setSuccessIsSet(true);
+        }
+      }
+    }
+
+  }
+
 }

http://git-wip-us.apache.org/repos/asf/sentry/blob/f783277f/sentry-provider/sentry-provider-db/src/gen/thrift/gen-javabean/org/apache/sentry/provider/db/service/thrift/TSentrySyncIDRequest.java
----------------------------------------------------------------------
diff --git a/sentry-provider/sentry-provider-db/src/gen/thrift/gen-javabean/org/apache/sentry/provider/db/service/thrift/TSentrySyncIDRequest.java b/sentry-provider/sentry-provider-db/src/gen/thrift/gen-javabean/org/apache/sentry/provider/db/service/thrift/TSentrySyncIDRequest.java
new file mode 100644
index 0000000..53296d3
--- /dev/null
+++ b/sentry-provider/sentry-provider-db/src/gen/thrift/gen-javabean/org/apache/sentry/provider/db/service/thrift/TSentrySyncIDRequest.java
@@ -0,0 +1,484 @@
+/**
+ * Autogenerated by Thrift Compiler (0.9.3)
+ *
+ * DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING
+ *  @generated
+ */
+package org.apache.sentry.provider.db.service.thrift;
+
+import org.apache.thrift.scheme.IScheme;
+import org.apache.thrift.scheme.SchemeFactory;
+import org.apache.thrift.scheme.StandardScheme;
+
+import org.apache.thrift.scheme.TupleScheme;
+import org.apache.thrift.protocol.TTupleProtocol;
+import org.apache.thrift.protocol.TProtocolException;
+import org.apache.thrift.EncodingUtils;
+import org.apache.thrift.TException;
+import org.apache.thrift.async.AsyncMethodCallback;
+import org.apache.thrift.server.AbstractNonblockingServer.*;
+import java.util.List;
+import java.util.ArrayList;
+import java.util.Map;
+import java.util.HashMap;
+import java.util.EnumMap;
+import java.util.Set;
+import java.util.HashSet;
+import java.util.EnumSet;
+import java.util.Collections;
+import java.util.BitSet;
+import java.nio.ByteBuffer;
+import java.util.Arrays;
+import javax.annotation.Generated;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+@SuppressWarnings({"cast", "rawtypes", "serial", "unchecked"})
+@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2017-02-24")
+public class TSentrySyncIDRequest implements org.apache.thrift.TBase<TSentrySyncIDRequest, TSentrySyncIDRequest._Fields>, java.io.Serializable, Cloneable, Comparable<TSentrySyncIDRequest> {
+  private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("TSentrySyncIDRequest");
+
+  private static final org.apache.thrift.protocol.TField PROTOCOL_VERSION_FIELD_DESC = new org.apache.thrift.protocol.TField("protocol_version", org.apache.thrift.protocol.TType.I32, (short)1);
+  private static final org.apache.thrift.protocol.TField ID_FIELD_DESC = new org.apache.thrift.protocol.TField("id", org.apache.thrift.protocol.TType.I64, (short)2);
+
+  private static final Map<Class<? extends IScheme>, SchemeFactory> schemes = new HashMap<Class<? extends IScheme>, SchemeFactory>();
+  static {
+    schemes.put(StandardScheme.class, new TSentrySyncIDRequestStandardSchemeFactory());
+    schemes.put(TupleScheme.class, new TSentrySyncIDRequestTupleSchemeFactory());
+  }
+
+  private int protocol_version; // required
+  private long id; // required
+
+  /** The set of fields this struct contains, along with convenience methods for finding and manipulating them. */
+  public enum _Fields implements org.apache.thrift.TFieldIdEnum {
+    PROTOCOL_VERSION((short)1, "protocol_version"),
+    ID((short)2, "id");
+
+    private static final Map<String, _Fields> byName = new HashMap<String, _Fields>();
+
+    static {
+      for (_Fields field : EnumSet.allOf(_Fields.class)) {
+        byName.put(field.getFieldName(), field);
+      }
+    }
+
+    /**
+     * Find the _Fields constant that matches fieldId, or null if its not found.
+     */
+    public static _Fields findByThriftId(int fieldId) {
+      switch(fieldId) {
+        case 1: // PROTOCOL_VERSION
+          return PROTOCOL_VERSION;
+        case 2: // ID
+          return ID;
+        default:
+          return null;
+      }
+    }
+
+    /**
+     * Find the _Fields constant that matches fieldId, throwing an exception
+     * if it is not found.
+     */
+    public static _Fields findByThriftIdOrThrow(int fieldId) {
+      _Fields fields = findByThriftId(fieldId);
+      if (fields == null) throw new IllegalArgumentException("Field " + fieldId + " doesn't exist!");
+      return fields;
+    }
+
+    /**
+     * Find the _Fields constant that matches name, or null if its not found.
+     */
+    public static _Fields findByName(String name) {
+      return byName.get(name);
+    }
+
+    private final short _thriftId;
+    private final String _fieldName;
+
+    _Fields(short thriftId, String fieldName) {
+      _thriftId = thriftId;
+      _fieldName = fieldName;
+    }
+
+    public short getThriftFieldId() {
+      return _thriftId;
+    }
+
+    public String getFieldName() {
+      return _fieldName;
+    }
+  }
+
+  // isset id assignments
+  private static final int __PROTOCOL_VERSION_ISSET_ID = 0;
+  private static final int __ID_ISSET_ID = 1;
+  private byte __isset_bitfield = 0;
+  public static final Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> metaDataMap;
+  static {
+    Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> tmpMap = new EnumMap<_Fields, org.apache.thrift.meta_data.FieldMetaData>(_Fields.class);
+    tmpMap.put(_Fields.PROTOCOL_VERSION, new org.apache.thrift.meta_data.FieldMetaData("protocol_version", org.apache.thrift.TFieldRequirementType.REQUIRED, 
+        new org.apache.thrift.meta_data.FieldValueMetaData(org.apache.thrift.protocol.TType.I32)));
+    tmpMap.put(_Fields.ID, new org.apache.thrift.meta_data.FieldMetaData("id", org.apache.thrift.TFieldRequirementType.REQUIRED, 
+        new org.apache.thrift.meta_data.FieldValueMetaData(org.apache.thrift.protocol.TType.I64)));
+    metaDataMap = Collections.unmodifiableMap(tmpMap);
+    org.apache.thrift.meta_data.FieldMetaData.addStructMetaDataMap(TSentrySyncIDRequest.class, metaDataMap);
+  }
+
+  public TSentrySyncIDRequest() {
+    this.protocol_version = 2;
+
+  }
+
+  public TSentrySyncIDRequest(
+    int protocol_version,
+    long id)
+  {
+    this();
+    this.protocol_version = protocol_version;
+    setProtocol_versionIsSet(true);
+    this.id = id;
+    setIdIsSet(true);
+  }
+
+  /**
+   * Performs a deep copy on <i>other</i>.
+   */
+  public TSentrySyncIDRequest(TSentrySyncIDRequest other) {
+    __isset_bitfield = other.__isset_bitfield;
+    this.protocol_version = other.protocol_version;
+    this.id = other.id;
+  }
+
+  public TSentrySyncIDRequest deepCopy() {
+    return new TSentrySyncIDRequest(this);
+  }
+
+  @Override
+  public void clear() {
+    this.protocol_version = 2;
+
+    setIdIsSet(false);
+    this.id = 0;
+  }
+
+  public int getProtocol_version() {
+    return this.protocol_version;
+  }
+
+  public void setProtocol_version(int protocol_version) {
+    this.protocol_version = protocol_version;
+    setProtocol_versionIsSet(true);
+  }
+
+  public void unsetProtocol_version() {
+    __isset_bitfield = EncodingUtils.clearBit(__isset_bitfield, __PROTOCOL_VERSION_ISSET_ID);
+  }
+
+  /** Returns true if field protocol_version is set (has been assigned a value) and false otherwise */
+  public boolean isSetProtocol_version() {
+    return EncodingUtils.testBit(__isset_bitfield, __PROTOCOL_VERSION_ISSET_ID);
+  }
+
+  public void setProtocol_versionIsSet(boolean value) {
+    __isset_bitfield = EncodingUtils.setBit(__isset_bitfield, __PROTOCOL_VERSION_ISSET_ID, value);
+  }
+
+  public long getId() {
+    return this.id;
+  }
+
+  public void setId(long id) {
+    this.id = id;
+    setIdIsSet(true);
+  }
+
+  public void unsetId() {
+    __isset_bitfield = EncodingUtils.clearBit(__isset_bitfield, __ID_ISSET_ID);
+  }
+
+  /** Returns true if field id is set (has been assigned a value) and false otherwise */
+  public boolean isSetId() {
+    return EncodingUtils.testBit(__isset_bitfield, __ID_ISSET_ID);
+  }
+
+  public void setIdIsSet(boolean value) {
+    __isset_bitfield = EncodingUtils.setBit(__isset_bitfield, __ID_ISSET_ID, value);
+  }
+
+  public void setFieldValue(_Fields field, Object value) {
+    switch (field) {
+    case PROTOCOL_VERSION:
+      if (value == null) {
+        unsetProtocol_version();
+      } else {
+        setProtocol_version((Integer)value);
+      }
+      break;
+
+    case ID:
+      if (value == null) {
+        unsetId();
+      } else {
+        setId((Long)value);
+      }
+      break;
+
+    }
+  }
+
+  public Object getFieldValue(_Fields field) {
+    switch (field) {
+    case PROTOCOL_VERSION:
+      return getProtocol_version();
+
+    case ID:
+      return getId();
+
+    }
+    throw new IllegalStateException();
+  }
+
+  /** Returns true if field corresponding to fieldID is set (has been assigned a value) and false otherwise */
+  public boolean isSet(_Fields field) {
+    if (field == null) {
+      throw new IllegalArgumentException();
+    }
+
+    switch (field) {
+    case PROTOCOL_VERSION:
+      return isSetProtocol_version();
+    case ID:
+      return isSetId();
+    }
+    throw new IllegalStateException();
+  }
+
+  @Override
+  public boolean equals(Object that) {
+    if (that == null)
+      return false;
+    if (that instanceof TSentrySyncIDRequest)
+      return this.equals((TSentrySyncIDRequest)that);
+    return false;
+  }
+
+  public boolean equals(TSentrySyncIDRequest that) {
+    if (that == null)
+      return false;
+
+    boolean this_present_protocol_version = true;
+    boolean that_present_protocol_version = true;
+    if (this_present_protocol_version || that_present_protocol_version) {
+      if (!(this_present_protocol_version && that_present_protocol_version))
+        return false;
+      if (this.protocol_version != that.protocol_version)
+        return false;
+    }
+
+    boolean this_present_id = true;
+    boolean that_present_id = true;
+    if (this_present_id || that_present_id) {
+      if (!(this_present_id && that_present_id))
+        return false;
+      if (this.id != that.id)
+        return false;
+    }
+
+    return true;
+  }
+
+  @Override
+  public int hashCode() {
+    List<Object> list = new ArrayList<Object>();
+
+    boolean present_protocol_version = true;
+    list.add(present_protocol_version);
+    if (present_protocol_version)
+      list.add(protocol_version);
+
+    boolean present_id = true;
+    list.add(present_id);
+    if (present_id)
+      list.add(id);
+
+    return list.hashCode();
+  }
+
+  @Override
+  public int compareTo(TSentrySyncIDRequest other) {
+    if (!getClass().equals(other.getClass())) {
+      return getClass().getName().compareTo(other.getClass().getName());
+    }
+
+    int lastComparison = 0;
+
+    lastComparison = Boolean.valueOf(isSetProtocol_version()).compareTo(other.isSetProtocol_version());
+    if (lastComparison != 0) {
+      return lastComparison;
+    }
+    if (isSetProtocol_version()) {
+      lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.protocol_version, other.protocol_version);
+      if (lastComparison != 0) {
+        return lastComparison;
+      }
+    }
+    lastComparison = Boolean.valueOf(isSetId()).compareTo(other.isSetId());
+    if (lastComparison != 0) {
+      return lastComparison;
+    }
+    if (isSetId()) {
+      lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.id, other.id);
+      if (lastComparison != 0) {
+        return lastComparison;
+      }
+    }
+    return 0;
+  }
+
+  public _Fields fieldForId(int fieldId) {
+    return _Fields.findByThriftId(fieldId);
+  }
+
+  public void read(org.apache.thrift.protocol.TProtocol iprot) throws org.apache.thrift.TException {
+    schemes.get(iprot.getScheme()).getScheme().read(iprot, this);
+  }
+
+  public void write(org.apache.thrift.protocol.TProtocol oprot) throws org.apache.thrift.TException {
+    schemes.get(oprot.getScheme()).getScheme().write(oprot, this);
+  }
+
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder("TSentrySyncIDRequest(");
+    boolean first = true;
+
+    sb.append("protocol_version:");
+    sb.append(this.protocol_version);
+    first = false;
+    if (!first) sb.append(", ");
+    sb.append("id:");
+    sb.append(this.id);
+    first = false;
+    sb.append(")");
+    return sb.toString();
+  }
+
+  public void validate() throws org.apache.thrift.TException {
+    // check for required fields
+    if (!isSetProtocol_version()) {
+      throw new org.apache.thrift.protocol.TProtocolException("Required field 'protocol_version' is unset! Struct:" + toString());
+    }
+
+    if (!isSetId()) {
+      throw new org.apache.thrift.protocol.TProtocolException("Required field 'id' is unset! Struct:" + toString());
+    }
+
+    // check for sub-struct validity
+  }
+
+  private void writeObject(java.io.ObjectOutputStream out) throws java.io.IOException {
+    try {
+      write(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(out)));
+    } catch (org.apache.thrift.TException te) {
+      throw new java.io.IOException(te);
+    }
+  }
+
+  private void readObject(java.io.ObjectInputStream in) throws java.io.IOException, ClassNotFoundException {
+    try {
+      // it doesn't seem like you should have to do this, but java serialization is wacky, and doesn't call the default constructor.
+      __isset_bitfield = 0;
+      read(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(in)));
+    } catch (org.apache.thrift.TException te) {
+      throw new java.io.IOException(te);
+    }
+  }
+
+  private static class TSentrySyncIDRequestStandardSchemeFactory implements SchemeFactory {
+    public TSentrySyncIDRequestStandardScheme getScheme() {
+      return new TSentrySyncIDRequestStandardScheme();
+    }
+  }
+
+  private static class TSentrySyncIDRequestStandardScheme extends StandardScheme<TSentrySyncIDRequest> {
+
+    public void read(org.apache.thrift.protocol.TProtocol iprot, TSentrySyncIDRequest struct) throws org.apache.thrift.TException {
+      org.apache.thrift.protocol.TField schemeField;
+      iprot.readStructBegin();
+      while (true)
+      {
+        schemeField = iprot.readFieldBegin();
+        if (schemeField.type == org.apache.thrift.protocol.TType.STOP) { 
+          break;
+        }
+        switch (schemeField.id) {
+          case 1: // PROTOCOL_VERSION
+            if (schemeField.type == org.apache.thrift.protocol.TType.I32) {
+              struct.protocol_version = iprot.readI32();
+              struct.setProtocol_versionIsSet(true);
+            } else { 
+              org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+            }
+            break;
+          case 2: // ID
+            if (schemeField.type == org.apache.thrift.protocol.TType.I64) {
+              struct.id = iprot.readI64();
+              struct.setIdIsSet(true);
+            } else { 
+              org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+            }
+            break;
+          default:
+            org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+        }
+        iprot.readFieldEnd();
+      }
+      iprot.readStructEnd();
+      struct.validate();
+    }
+
+    public void write(org.apache.thrift.protocol.TProtocol oprot, TSentrySyncIDRequest struct) throws org.apache.thrift.TException {
+      struct.validate();
+
+      oprot.writeStructBegin(STRUCT_DESC);
+      oprot.writeFieldBegin(PROTOCOL_VERSION_FIELD_DESC);
+      oprot.writeI32(struct.protocol_version);
+      oprot.writeFieldEnd();
+      oprot.writeFieldBegin(ID_FIELD_DESC);
+      oprot.writeI64(struct.id);
+      oprot.writeFieldEnd();
+      oprot.writeFieldStop();
+      oprot.writeStructEnd();
+    }
+
+  }
+
+  private static class TSentrySyncIDRequestTupleSchemeFactory implements SchemeFactory {
+    public TSentrySyncIDRequestTupleScheme getScheme() {
+      return new TSentrySyncIDRequestTupleScheme();
+    }
+  }
+
+  private static class TSentrySyncIDRequestTupleScheme extends TupleScheme<TSentrySyncIDRequest> {
+
+    @Override
+    public void write(org.apache.thrift.protocol.TProtocol prot, TSentrySyncIDRequest struct) throws org.apache.thrift.TException {
+      TTupleProtocol oprot = (TTupleProtocol) prot;
+      oprot.writeI32(struct.protocol_version);
+      oprot.writeI64(struct.id);
+    }
+
+    @Override
+    public void read(org.apache.thrift.protocol.TProtocol prot, TSentrySyncIDRequest struct) throws org.apache.thrift.TException {
+      TTupleProtocol iprot = (TTupleProtocol) prot;
+      struct.protocol_version = iprot.readI32();
+      struct.setProtocol_versionIsSet(true);
+      struct.id = iprot.readI64();
+      struct.setIdIsSet(true);
+    }
+  }
+
+}
+

http://git-wip-us.apache.org/repos/asf/sentry/blob/f783277f/sentry-provider/sentry-provider-db/src/gen/thrift/gen-javabean/org/apache/sentry/provider/db/service/thrift/TSentrySyncIDResponse.java
----------------------------------------------------------------------
diff --git a/sentry-provider/sentry-provider-db/src/gen/thrift/gen-javabean/org/apache/sentry/provider/db/service/thrift/TSentrySyncIDResponse.java b/sentry-provider/sentry-provider-db/src/gen/thrift/gen-javabean/org/apache/sentry/provider/db/service/thrift/TSentrySyncIDResponse.java
new file mode 100644
index 0000000..374f21e
--- /dev/null
+++ b/sentry-provider/sentry-provider-db/src/gen/thrift/gen-javabean/org/apache/sentry/provider/db/service/thrift/TSentrySyncIDResponse.java
@@ -0,0 +1,387 @@
+/**
+ * Autogenerated by Thrift Compiler (0.9.3)
+ *
+ * DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING
+ *  @generated
+ */
+package org.apache.sentry.provider.db.service.thrift;
+
+import org.apache.thrift.scheme.IScheme;
+import org.apache.thrift.scheme.SchemeFactory;
+import org.apache.thrift.scheme.StandardScheme;
+
+import org.apache.thrift.scheme.TupleScheme;
+import org.apache.thrift.protocol.TTupleProtocol;
+import org.apache.thrift.protocol.TProtocolException;
+import org.apache.thrift.EncodingUtils;
+import org.apache.thrift.TException;
+import org.apache.thrift.async.AsyncMethodCallback;
+import org.apache.thrift.server.AbstractNonblockingServer.*;
+import java.util.List;
+import java.util.ArrayList;
+import java.util.Map;
+import java.util.HashMap;
+import java.util.EnumMap;
+import java.util.Set;
+import java.util.HashSet;
+import java.util.EnumSet;
+import java.util.Collections;
+import java.util.BitSet;
+import java.nio.ByteBuffer;
+import java.util.Arrays;
+import javax.annotation.Generated;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+@SuppressWarnings({"cast", "rawtypes", "serial", "unchecked"})
+@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2017-02-24")
+public class TSentrySyncIDResponse implements org.apache.thrift.TBase<TSentrySyncIDResponse, TSentrySyncIDResponse._Fields>, java.io.Serializable, Cloneable, Comparable<TSentrySyncIDResponse> {
+  private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("TSentrySyncIDResponse");
+
+  private static final org.apache.thrift.protocol.TField ID_FIELD_DESC = new org.apache.thrift.protocol.TField("id", org.apache.thrift.protocol.TType.I64, (short)1);
+
+  private static final Map<Class<? extends IScheme>, SchemeFactory> schemes = new HashMap<Class<? extends IScheme>, SchemeFactory>();
+  static {
+    schemes.put(StandardScheme.class, new TSentrySyncIDResponseStandardSchemeFactory());
+    schemes.put(TupleScheme.class, new TSentrySyncIDResponseTupleSchemeFactory());
+  }
+
+  private long id; // required
+
+  /** The set of fields this struct contains, along with convenience methods for finding and manipulating them. */
+  public enum _Fields implements org.apache.thrift.TFieldIdEnum {
+    ID((short)1, "id");
+
+    private static final Map<String, _Fields> byName = new HashMap<String, _Fields>();
+
+    static {
+      for (_Fields field : EnumSet.allOf(_Fields.class)) {
+        byName.put(field.getFieldName(), field);
+      }
+    }
+
+    /**
+     * Find the _Fields constant that matches fieldId, or null if its not found.
+     */
+    public static _Fields findByThriftId(int fieldId) {
+      switch(fieldId) {
+        case 1: // ID
+          return ID;
+        default:
+          return null;
+      }
+    }
+
+    /**
+     * Find the _Fields constant that matches fieldId, throwing an exception
+     * if it is not found.
+     */
+    public static _Fields findByThriftIdOrThrow(int fieldId) {
+      _Fields fields = findByThriftId(fieldId);
+      if (fields == null) throw new IllegalArgumentException("Field " + fieldId + " doesn't exist!");
+      return fields;
+    }
+
+    /**
+     * Find the _Fields constant that matches name, or null if its not found.
+     */
+    public static _Fields findByName(String name) {
+      return byName.get(name);
+    }
+
+    private final short _thriftId;
+    private final String _fieldName;
+
+    _Fields(short thriftId, String fieldName) {
+      _thriftId = thriftId;
+      _fieldName = fieldName;
+    }
+
+    public short getThriftFieldId() {
+      return _thriftId;
+    }
+
+    public String getFieldName() {
+      return _fieldName;
+    }
+  }
+
+  // isset id assignments
+  private static final int __ID_ISSET_ID = 0;
+  private byte __isset_bitfield = 0;
+  public static final Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> metaDataMap;
+  static {
+    Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> tmpMap = new EnumMap<_Fields, org.apache.thrift.meta_data.FieldMetaData>(_Fields.class);
+    tmpMap.put(_Fields.ID, new org.apache.thrift.meta_data.FieldMetaData("id", org.apache.thrift.TFieldRequirementType.REQUIRED, 
+        new org.apache.thrift.meta_data.FieldValueMetaData(org.apache.thrift.protocol.TType.I64)));
+    metaDataMap = Collections.unmodifiableMap(tmpMap);
+    org.apache.thrift.meta_data.FieldMetaData.addStructMetaDataMap(TSentrySyncIDResponse.class, metaDataMap);
+  }
+
+  public TSentrySyncIDResponse() {
+  }
+
+  public TSentrySyncIDResponse(
+    long id)
+  {
+    this();
+    this.id = id;
+    setIdIsSet(true);
+  }
+
+  /**
+   * Performs a deep copy on <i>other</i>.
+   */
+  public TSentrySyncIDResponse(TSentrySyncIDResponse other) {
+    __isset_bitfield = other.__isset_bitfield;
+    this.id = other.id;
+  }
+
+  public TSentrySyncIDResponse deepCopy() {
+    return new TSentrySyncIDResponse(this);
+  }
+
+  @Override
+  public void clear() {
+    setIdIsSet(false);
+    this.id = 0;
+  }
+
+  public long getId() {
+    return this.id;
+  }
+
+  public void setId(long id) {
+    this.id = id;
+    setIdIsSet(true);
+  }
+
+  public void unsetId() {
+    __isset_bitfield = EncodingUtils.clearBit(__isset_bitfield, __ID_ISSET_ID);
+  }
+
+  /** Returns true if field id is set (has been assigned a value) and false otherwise */
+  public boolean isSetId() {
+    return EncodingUtils.testBit(__isset_bitfield, __ID_ISSET_ID);
+  }
+
+  public void setIdIsSet(boolean value) {
+    __isset_bitfield = EncodingUtils.setBit(__isset_bitfield, __ID_ISSET_ID, value);
+  }
+
+  public void setFieldValue(_Fields field, Object value) {
+    switch (field) {
+    case ID:
+      if (value == null) {
+        unsetId();
+      } else {
+        setId((Long)value);
+      }
+      break;
+
+    }
+  }
+
+  public Object getFieldValue(_Fields field) {
+    switch (field) {
+    case ID:
+      return getId();
+
+    }
+    throw new IllegalStateException();
+  }
+
+  /** Returns true if field corresponding to fieldID is set (has been assigned a value) and false otherwise */
+  public boolean isSet(_Fields field) {
+    if (field == null) {
+      throw new IllegalArgumentException();
+    }
+
+    switch (field) {
+    case ID:
+      return isSetId();
+    }
+    throw new IllegalStateException();
+  }
+
+  @Override
+  public boolean equals(Object that) {
+    if (that == null)
+      return false;
+    if (that instanceof TSentrySyncIDResponse)
+      return this.equals((TSentrySyncIDResponse)that);
+    return false;
+  }
+
+  public boolean equals(TSentrySyncIDResponse that) {
+    if (that == null)
+      return false;
+
+    boolean this_present_id = true;
+    boolean that_present_id = true;
+    if (this_present_id || that_present_id) {
+      if (!(this_present_id && that_present_id))
+        return false;
+      if (this.id != that.id)
+        return false;
+    }
+
+    return true;
+  }
+
+  @Override
+  public int hashCode() {
+    List<Object> list = new ArrayList<Object>();
+
+    boolean present_id = true;
+    list.add(present_id);
+    if (present_id)
+      list.add(id);
+
+    return list.hashCode();
+  }
+
+  @Override
+  public int compareTo(TSentrySyncIDResponse other) {
+    if (!getClass().equals(other.getClass())) {
+      return getClass().getName().compareTo(other.getClass().getName());
+    }
+
+    int lastComparison = 0;
+
+    lastComparison = Boolean.valueOf(isSetId()).compareTo(other.isSetId());
+    if (lastComparison != 0) {
+      return lastComparison;
+    }
+    if (isSetId()) {
+      lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.id, other.id);
+      if (lastComparison != 0) {
+        return lastComparison;
+      }
+    }
+    return 0;
+  }
+
+  public _Fields fieldForId(int fieldId) {
+    return _Fields.findByThriftId(fieldId);
+  }
+
+  public void read(org.apache.thrift.protocol.TProtocol iprot) throws org.apache.thrift.TException {
+    schemes.get(iprot.getScheme()).getScheme().read(iprot, this);
+  }
+
+  public void write(org.apache.thrift.protocol.TProtocol oprot) throws org.apache.thrift.TException {
+    schemes.get(oprot.getScheme()).getScheme().write(oprot, this);
+  }
+
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder("TSentrySyncIDResponse(");
+    boolean first = true;
+
+    sb.append("id:");
+    sb.append(this.id);
+    first = false;
+    sb.append(")");
+    return sb.toString();
+  }
+
+  public void validate() throws org.apache.thrift.TException {
+    // check for required fields
+    if (!isSetId()) {
+      throw new org.apache.thrift.protocol.TProtocolException("Required field 'id' is unset! Struct:" + toString());
+    }
+
+    // check for sub-struct validity
+  }
+
+  private void writeObject(java.io.ObjectOutputStream out) throws java.io.IOException {
+    try {
+      write(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(out)));
+    } catch (org.apache.thrift.TException te) {
+      throw new java.io.IOException(te);
+    }
+  }
+
+  private void readObject(java.io.ObjectInputStream in) throws java.io.IOException, ClassNotFoundException {
+    try {
+      // it doesn't seem like you should have to do this, but java serialization is wacky, and doesn't call the default constructor.
+      __isset_bitfield = 0;
+      read(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(in)));
+    } catch (org.apache.thrift.TException te) {
+      throw new java.io.IOException(te);
+    }
+  }
+
+  private static class TSentrySyncIDResponseStandardSchemeFactory implements SchemeFactory {
+    public TSentrySyncIDResponseStandardScheme getScheme() {
+      return new TSentrySyncIDResponseStandardScheme();
+    }
+  }
+
+  private static class TSentrySyncIDResponseStandardScheme extends StandardScheme<TSentrySyncIDResponse> {
+
+    public void read(org.apache.thrift.protocol.TProtocol iprot, TSentrySyncIDResponse struct) throws org.apache.thrift.TException {
+      org.apache.thrift.protocol.TField schemeField;
+      iprot.readStructBegin();
+      while (true)
+      {
+        schemeField = iprot.readFieldBegin();
+        if (schemeField.type == org.apache.thrift.protocol.TType.STOP) { 
+          break;
+        }
+        switch (schemeField.id) {
+          case 1: // ID
+            if (schemeField.type == org.apache.thrift.protocol.TType.I64) {
+              struct.id = iprot.readI64();
+              struct.setIdIsSet(true);
+            } else { 
+              org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+            }
+            break;
+          default:
+            org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+        }
+        iprot.readFieldEnd();
+      }
+      iprot.readStructEnd();
+      struct.validate();
+    }
+
+    public void write(org.apache.thrift.protocol.TProtocol oprot, TSentrySyncIDResponse struct) throws org.apache.thrift.TException {
+      struct.validate();
+
+      oprot.writeStructBegin(STRUCT_DESC);
+      oprot.writeFieldBegin(ID_FIELD_DESC);
+      oprot.writeI64(struct.id);
+      oprot.writeFieldEnd();
+      oprot.writeFieldStop();
+      oprot.writeStructEnd();
+    }
+
+  }
+
+  private static class TSentrySyncIDResponseTupleSchemeFactory implements SchemeFactory {
+    public TSentrySyncIDResponseTupleScheme getScheme() {
+      return new TSentrySyncIDResponseTupleScheme();
+    }
+  }
+
+  private static class TSentrySyncIDResponseTupleScheme extends TupleScheme<TSentrySyncIDResponse> {
+
+    @Override
+    public void write(org.apache.thrift.protocol.TProtocol prot, TSentrySyncIDResponse struct) throws org.apache.thrift.TException {
+      TTupleProtocol oprot = (TTupleProtocol) prot;
+      oprot.writeI64(struct.id);
+    }
+
+    @Override
+    public void read(org.apache.thrift.protocol.TProtocol prot, TSentrySyncIDResponse struct) throws org.apache.thrift.TException {
+      TTupleProtocol iprot = (TTupleProtocol) prot;
+      struct.id = iprot.readI64();
+      struct.setIdIsSet(true);
+    }
+  }
+
+}
+

http://git-wip-us.apache.org/repos/asf/sentry/blob/f783277f/sentry-provider/sentry-provider-db/src/main/java/org/apache/sentry/provider/db/service/thrift/SentryPolicyStoreProcessor.java
----------------------------------------------------------------------
diff --git a/sentry-provider/sentry-provider-db/src/main/java/org/apache/sentry/provider/db/service/thrift/SentryPolicyStoreProcessor.java b/sentry-provider/sentry-provider-db/src/main/java/org/apache/sentry/provider/db/service/thrift/SentryPolicyStoreProcessor.java
index 7fc3ca8..48e2587 100644
--- a/sentry-provider/sentry-provider-db/src/main/java/org/apache/sentry/provider/db/service/thrift/SentryPolicyStoreProcessor.java
+++ b/sentry-provider/sentry-provider-db/src/main/java/org/apache/sentry/provider/db/service/thrift/SentryPolicyStoreProcessor.java
@@ -1140,4 +1140,9 @@ public class SentryPolicyStoreProcessor implements SentryPolicyService.Iface {
     }
     return response;
   }
+
+  @Override
+  public TSentrySyncIDResponse sentry_sync_notifications(TSentrySyncIDRequest request) throws TException {
+    throw new UnsupportedOperationException("sentry_sync_notifications");
+  }
 }

http://git-wip-us.apache.org/repos/asf/sentry/blob/f783277f/sentry-provider/sentry-provider-db/src/main/resources/sentry_policy_service.thrift
----------------------------------------------------------------------
diff --git a/sentry-provider/sentry-provider-db/src/main/resources/sentry_policy_service.thrift b/sentry-provider/sentry-provider-db/src/main/resources/sentry_policy_service.thrift
index 4075e3a..b5c3390 100644
--- a/sentry-provider/sentry-provider-db/src/main/resources/sentry_policy_service.thrift
+++ b/sentry-provider/sentry-provider-db/src/main/resources/sentry_policy_service.thrift
@@ -291,6 +291,37 @@ struct TSentryImportMappingDataResponse {
 1: required sentry_common_service.TSentryResponseStatus status
 }
 
+/*
+ * API for synchronizing between HMS notification events and Sentry.
+ *
+ * When Sentry gets updates from HMS using HMS Notifications, HMS should
+ * should wait after each notification event is generated until the notification
+ * is handled by Sentry This preserves the synchronous semantics of DDL statements.
+ *
+ * The notification synchronization API is private between HMS and Sentry and should
+ * not be used by anything else.
+ *
+ * The API should be used in the following way:
+ *
+ * 1) HMS creates a notification and stores its ID in the persistent storage
+ * 2) HMS sends ID to Sentry
+ * 3) Sentry blocks the response until the specified ID is processed by Sentry
+ * 4) Sentry responds with the most recent processed ID.
+ *
+ * Note that the important part is blocking in Sentry until the specified ID
+ * is processed. The returned most recent processed ID is intended for debugging
+ * purposes only, but may be used in HMS for performance optimizations.
+ */
+
+struct TSentrySyncIDRequest {
+1: required i32 protocol_version = sentry_common_service.TSENTRY_SERVICE_V2,
+2: required i64 id // Requested ID
+}
+
+struct TSentrySyncIDResponse {
+1: required i64 id // Most recent processed ID
+}
+
 service SentryPolicyService
 {
   TCreateSentryRoleResponse create_sentry_role(1:TCreateSentryRoleRequest request)
@@ -326,4 +357,7 @@ service SentryPolicyService
 
   # import the mapping data in sentry
   TSentryImportMappingDataResponse import_sentry_mapping_data(1:TSentryImportMappingDataRequest request);
+
+  # Synchronize between HMS notifications and Sentry
+  TSentrySyncIDResponse sentry_sync_notifications(1:TSentrySyncIDRequest request);
 }


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