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Subject svn commit: r1547658 - in /hadoop/common/branches/HDFS-2832/hadoop-yarn-project: ./ hadoop-yarn/dev-support/ hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/conf/ hadoop-yarn/hadoop-yarn-client/src/test/java/org/apache/hadoop/yarn/clie...
Date Wed, 04 Dec 2013 00:45:40 GMT
Author: arp
Date: Wed Dec  4 00:45:38 2013
New Revision: 1547658

URL: http://svn.apache.org/r1547658
Log:
Merging r1547474 through r1547657 from trunk to branch HDFS-2832

Modified:
    hadoop/common/branches/HDFS-2832/hadoop-yarn-project/CHANGES.txt
    hadoop/common/branches/HDFS-2832/hadoop-yarn-project/hadoop-yarn/dev-support/findbugs-exclude.xml
    hadoop/common/branches/HDFS-2832/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/conf/YarnConfiguration.java
    hadoop/common/branches/HDFS-2832/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/test/java/org/apache/hadoop/yarn/client/api/impl/TestAMRMClient.java
    hadoop/common/branches/HDFS-2832/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/resources/yarn-default.xml
    hadoop/common/branches/HDFS-2832/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/recovery/FileSystemRMStateStore.java
    hadoop/common/branches/HDFS-2832/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/recovery/ZKRMStateStore.java
    hadoop/common/branches/HDFS-2832/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/TestRMRestart.java
    hadoop/common/branches/HDFS-2832/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/recovery/TestFSRMStateStore.java
    hadoop/common/branches/HDFS-2832/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/recovery/TestZKRMStateStoreZKClientConnections.java

Modified: hadoop/common/branches/HDFS-2832/hadoop-yarn-project/CHANGES.txt
URL: http://svn.apache.org/viewvc/hadoop/common/branches/HDFS-2832/hadoop-yarn-project/CHANGES.txt?rev=1547658&r1=1547657&r2=1547658&view=diff
==============================================================================
--- hadoop/common/branches/HDFS-2832/hadoop-yarn-project/CHANGES.txt (original)
+++ hadoop/common/branches/HDFS-2832/hadoop-yarn-project/CHANGES.txt Wed Dec  4 00:45:38 2013
@@ -132,6 +132,9 @@ Release 2.4.0 - UNRELEASED
     YARN-1318. Promoted AdminService to an Always-On service and merged it into
     RMHAProtocolService. (Karthik Kambatla via vinodkv)
 
+    YARN-1332. In TestAMRMClient, replace assertTrue with assertEquals where
+    possible (Sebastian Wong via Sandy Ryza)
+
   OPTIMIZATIONS
 
   BUG FIXES
@@ -191,6 +194,12 @@ Release 2.4.0 - UNRELEASED
     YARN-1416. Fixed a few invalid transitions in RMApp, RMAppAttempt and in some
     tests. (Jian He via vinodkv)
 
+    YARN-895. Changed RM state-store to not crash immediately if RM restarts while
+    the state-store is down. (Jian He via vinodkv)
+
+    YARN-1454. Fixed test failure issue with TestRMRestart. (Karthik Kambatla
+    via vinodkv)
+
 Release 2.3.0 - UNRELEASED
 
   INCOMPATIBLE CHANGES

Modified: hadoop/common/branches/HDFS-2832/hadoop-yarn-project/hadoop-yarn/dev-support/findbugs-exclude.xml
URL: http://svn.apache.org/viewvc/hadoop/common/branches/HDFS-2832/hadoop-yarn-project/hadoop-yarn/dev-support/findbugs-exclude.xml?rev=1547658&r1=1547657&r2=1547658&view=diff
==============================================================================
--- hadoop/common/branches/HDFS-2832/hadoop-yarn-project/hadoop-yarn/dev-support/findbugs-exclude.xml
(original)
+++ hadoop/common/branches/HDFS-2832/hadoop-yarn-project/hadoop-yarn/dev-support/findbugs-exclude.xml
Wed Dec  4 00:45:38 2013
@@ -305,4 +305,9 @@
     <Bug pattern="NM_CLASS_NOT_EXCEPTION" />
   </Match>
 
+  <Match>
+    <Class name="org.apache.hadoop.yarn.server.resourcemanager.recovery.ZKRMStateStore"
/>
+    <Bug pattern="IS2_INCONSISTENT_SYNC" />
+  </Match>
+
 </FindBugsFilter>

Modified: hadoop/common/branches/HDFS-2832/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/conf/YarnConfiguration.java
URL: http://svn.apache.org/viewvc/hadoop/common/branches/HDFS-2832/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/conf/YarnConfiguration.java?rev=1547658&r1=1547657&r2=1547658&view=diff
==============================================================================
--- hadoop/common/branches/HDFS-2832/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/conf/YarnConfiguration.java
(original)
+++ hadoop/common/branches/HDFS-2832/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/conf/YarnConfiguration.java
Wed Dec  4 00:45:38 2013
@@ -301,22 +301,30 @@ public class YarnConfiguration extends C
   public static final String RM_STORE = RM_PREFIX + "store.class";
   
   /** URI for FileSystemRMStateStore */
-  public static final String FS_RM_STATE_STORE_URI =
-                                           RM_PREFIX + "fs.state-store.uri";
+  public static final String FS_RM_STATE_STORE_URI = RM_PREFIX
+      + "fs.state-store.uri";
+  public static final String FS_RM_STATE_STORE_RETRY_POLICY_SPEC = RM_PREFIX
+      + "fs.state-store.retry-policy-spec";
+  public static final String DEFAULT_FS_RM_STATE_STORE_RETRY_POLICY_SPEC =
+      "2000, 500";
   /**
    * Comma separated host:port pairs, each corresponding to a ZK server for
    * ZKRMStateStore
    */
   public static final String ZK_STATE_STORE_PREFIX =
-      RM_PREFIX + "zk.state-store.";
+      RM_PREFIX + "zk-state-store.";
   public static final String ZK_RM_STATE_STORE_NUM_RETRIES =
       ZK_STATE_STORE_PREFIX + "num-retries";
-  public static final int DEFAULT_ZK_RM_STATE_STORE_NUM_RETRIES = 3;
+  public static final int DEFAULT_ZK_RM_STATE_STORE_NUM_RETRIES = 500;
+  /** retry interval when connecting to zookeeper*/
+  public static final String ZK_RM_STATE_STORE_RETRY_INTERVAL_MS =
+      ZK_STATE_STORE_PREFIX + "retry-interval-ms";
+  public static final long DEFAULT_ZK_RM_STATE_STORE_RETRY_INTERVAL_MS = 2000;
   public static final String ZK_RM_STATE_STORE_ADDRESS =
       ZK_STATE_STORE_PREFIX + "address";
   /** Timeout in millisec for ZK server connection for ZKRMStateStore */
   public static final String ZK_RM_STATE_STORE_TIMEOUT_MS =
-      ZK_STATE_STORE_PREFIX + "timeout.ms";
+      ZK_STATE_STORE_PREFIX + "timeout-ms";
   public static final int DEFAULT_ZK_RM_STATE_STORE_TIMEOUT_MS = 60000;
   /** Parent znode path under which ZKRMStateStore will create znodes */
   public static final String ZK_RM_STATE_STORE_PARENT_PATH =

Modified: hadoop/common/branches/HDFS-2832/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/test/java/org/apache/hadoop/yarn/client/api/impl/TestAMRMClient.java
URL: http://svn.apache.org/viewvc/hadoop/common/branches/HDFS-2832/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/test/java/org/apache/hadoop/yarn/client/api/impl/TestAMRMClient.java?rev=1547658&r1=1547657&r2=1547658&view=diff
==============================================================================
--- hadoop/common/branches/HDFS-2832/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/test/java/org/apache/hadoop/yarn/client/api/impl/TestAMRMClient.java
(original)
+++ hadoop/common/branches/HDFS-2832/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/test/java/org/apache/hadoop/yarn/client/api/impl/TestAMRMClient.java
Wed Dec  4 00:45:38 2013
@@ -248,7 +248,7 @@ public class TestAMRMClient {
       matches = amClient.getMatchingRequests(priority, node, testCapability1);
       verifyMatches(matches, 1);
       storedRequest = matches.get(0).iterator().next();
-      assertTrue(storedContainer1 == storedRequest);
+      assertEquals(storedContainer1, storedRequest);
       amClient.removeContainerRequest(storedContainer1);
       
       // exact matching with order maintained
@@ -259,9 +259,9 @@ public class TestAMRMClient {
       int i = 0;
       for(ContainerRequest storedRequest1 : matches.get(0)) {
         if(i++ == 0) {
-          assertTrue(storedContainer4 == storedRequest1);
+          assertEquals(storedContainer4, storedRequest1);
         } else {
-          assertTrue(storedContainer6 == storedRequest1);
+          assertEquals(storedContainer6, storedRequest1);
         }
       }
       amClient.removeContainerRequest(storedContainer6);
@@ -276,7 +276,7 @@ public class TestAMRMClient {
       assert(matches.size() == 2);
       // verify non-fitting containers are not returned and fitting ones are
       for(Collection<ContainerRequest> testSet : matches) {
-        assertTrue(testSet.size() == 1);
+        assertEquals(1, testSet.size());
         ContainerRequest testRequest = testSet.iterator().next();
         assertTrue(testRequest != storedContainer4);
         assertTrue(testRequest != storedContainer5);
@@ -310,8 +310,8 @@ public class TestAMRMClient {
   private void verifyMatches(
                   List<? extends Collection<ContainerRequest>> matches,
                   int matchSize) {
-    assertTrue(matches.size() == 1);
-    assertTrue(matches.get(0).size() == matchSize);    
+    assertEquals(1, matches.size());
+    assertEquals(matches.get(0).size(), matchSize);
   }
   
   @Test (timeout=60000)
@@ -337,12 +337,12 @@ public class TestAMRMClient {
       matches = amClient.getMatchingRequests(priority, node, capability);
       verifyMatches(matches, 1);
       storedRequest = matches.get(0).iterator().next();
-      assertTrue(storedContainer1 == storedRequest);
+      assertEquals(storedContainer1, storedRequest);
       // inferred match rack
       matches = amClient.getMatchingRequests(priority, rack, capability);
       verifyMatches(matches, 1);
       storedRequest = matches.get(0).iterator().next();
-      assertTrue(storedContainer1 == storedRequest);
+      assertEquals(storedContainer1, storedRequest);
       
       // inferred rack match no longer valid after request is removed
       amClient.removeContainerRequest(storedContainer1);
@@ -387,10 +387,10 @@ public class TestAMRMClient {
       // test addition and storage
       int containersRequestedAny = amClient.remoteRequestsTable.get(priority)
        .get(ResourceRequest.ANY).get(capability).remoteRequest.getNumContainers();
-      assertTrue(containersRequestedAny == 2);
+      assertEquals(2, containersRequestedAny);
       containersRequestedAny = amClient.remoteRequestsTable.get(priority1)
           .get(ResourceRequest.ANY).get(capability).remoteRequest.getNumContainers();
-         assertTrue(containersRequestedAny == 1);
+         assertEquals(1, containersRequestedAny);
       List<? extends Collection<ContainerRequest>> matches = 
           amClient.getMatchingRequests(priority, node, capability);
       verifyMatches(matches, 2);
@@ -417,7 +417,7 @@ public class TestAMRMClient {
       
       // test matching of containers
       ContainerRequest storedRequest = matches.get(0).iterator().next();
-      assertTrue(storedContainer1 == storedRequest);
+      assertEquals(storedContainer1, storedRequest);
       amClient.removeContainerRequest(storedContainer1);
       matches = 
           amClient.getMatchingRequests(priority, ResourceRequest.ANY, capability);
@@ -438,10 +438,10 @@ public class TestAMRMClient {
           && iterationsLeft-- > 0) {
         Log.info(" == alloc " + allocatedContainerCount + " it left " + iterationsLeft);
         AllocateResponse allocResponse = amClient.allocate(0.1f);
-        assertTrue(amClient.ask.size() == 0);
-        assertTrue(amClient.release.size() == 0);
+        assertEquals(0, amClient.ask.size());
+        assertEquals(0, amClient.release.size());
         
-        assertTrue(nodeCount == amClient.getClusterNodeCount());
+        assertEquals(nodeCount, amClient.getClusterNodeCount());
         allocatedContainerCount += allocResponse.getAllocatedContainers().size();
         for(Container container : allocResponse.getAllocatedContainers()) {
           ContainerRequest expectedRequest = 
@@ -453,7 +453,7 @@ public class TestAMRMClient {
           // test correct matched container is returned
           verifyMatches(matches, 1);
           ContainerRequest matchedRequest = matches.get(0).iterator().next();
-          assertTrue(matchedRequest == expectedRequest);
+          assertEquals(matchedRequest, expectedRequest);
           amClient.removeContainerRequest(matchedRequest);
           // assign this container, use it and release it
           amClient.releaseAssignedContainer(container.getId());
@@ -464,11 +464,11 @@ public class TestAMRMClient {
         }
       }
       
-      assertTrue(allocatedContainerCount == 2);
+      assertEquals(2, allocatedContainerCount);
       AllocateResponse allocResponse = amClient.allocate(0.1f);
-      assertTrue(amClient.release.size() == 0);
-      assertTrue(amClient.ask.size() == 0);
-      assertTrue(allocResponse.getAllocatedContainers().size() == 0);
+      assertEquals(0, amClient.release.size());
+      assertEquals(0, amClient.ask.size());
+      assertEquals(0, allocResponse.getAllocatedContainers().size());
       // 0 requests left. everything got cleaned up
       assertTrue(amClient.remoteRequestsTable.isEmpty());      
       
@@ -494,14 +494,14 @@ public class TestAMRMClient {
       amClient.start();
       amClient.registerApplicationMaster("Host", 10000, "");
       
-      assertTrue(amClient.ask.size() == 0);
-      assertTrue(amClient.release.size() == 0);
+      assertEquals(0, amClient.ask.size());
+      assertEquals(0, amClient.release.size());
       
       ContainerRequest storedContainer1 = 
           new ContainerRequest(capability, nodes, racks, priority);
       amClient.addContainerRequest(storedContainer1);
-      assertTrue(amClient.ask.size() == 3);
-      assertTrue(amClient.release.size() == 0);
+      assertEquals(3, amClient.ask.size());
+      assertEquals(0, amClient.release.size());
       
       List<String> localNodeBlacklist = new ArrayList<String>();
       localNodeBlacklist.add(node);
@@ -512,7 +512,7 @@ public class TestAMRMClient {
       int allocatedContainerCount = getAllocatedContainersNumber(amClient,
         DEFAULT_ITERATION);
       // the only node is in blacklist, so no allocation
-      assertTrue(allocatedContainerCount == 0);
+      assertEquals(0, allocatedContainerCount);
 
       // Remove node from blacklist, so get assigned with 2
       amClient.updateBlacklist(null, localNodeBlacklist);
@@ -521,7 +521,7 @@ public class TestAMRMClient {
       amClient.addContainerRequest(storedContainer2);
       allocatedContainerCount = getAllocatedContainersNumber(amClient,
           DEFAULT_ITERATION);
-      assertEquals(allocatedContainerCount, 2);
+      assertEquals(2, allocatedContainerCount);
       
       // Test in case exception in allocate(), blacklist is kept
       assertTrue(amClient.blacklistAdditions.isEmpty());
@@ -538,7 +538,7 @@ public class TestAMRMClient {
         amClient.allocate(0.1f);
         fail("there should be an exception here.");
       } catch (Exception e) {
-        assertEquals(amClient.blacklistAdditions.size(), 1);
+        assertEquals(1, amClient.blacklistAdditions.size());
       }
     } finally {
       if (amClient != null && amClient.getServiceState() == STATE.STARTED) {
@@ -565,16 +565,16 @@ public class TestAMRMClient {
       nodeList01.add(nodes[0]);
       nodeList01.add(nodes[1]);
       amClient.updateBlacklist(nodeList01, null);
-      assertEquals(amClient.blacklistAdditions.size(),2);
-      assertEquals(amClient.blacklistRemovals.size(),0);
+      assertEquals(2, amClient.blacklistAdditions.size());
+      assertEquals(0, amClient.blacklistRemovals.size());
       
       // Add nodes[0] again, verify it is not added duplicated.
       List<String> nodeList02 = new ArrayList<String>();
       nodeList02.add(nodes[0]);
       nodeList02.add(nodes[2]);
       amClient.updateBlacklist(nodeList02, null);
-      assertEquals(amClient.blacklistAdditions.size(),3);
-      assertEquals(amClient.blacklistRemovals.size(),0);
+      assertEquals(3, amClient.blacklistAdditions.size());
+      assertEquals(0, amClient.blacklistRemovals.size());
       
       // Add nodes[1] and nodes[2] to removal list, 
       // Verify addition list remove these two nodes.
@@ -582,16 +582,16 @@ public class TestAMRMClient {
       nodeList12.add(nodes[1]);
       nodeList12.add(nodes[2]);
       amClient.updateBlacklist(null, nodeList12);
-      assertEquals(amClient.blacklistAdditions.size(),1);
-      assertEquals(amClient.blacklistRemovals.size(),2);
+      assertEquals(1, amClient.blacklistAdditions.size());
+      assertEquals(2, amClient.blacklistRemovals.size());
       
       // Add nodes[1] again to addition list, 
       // Verify removal list will remove this node.
       List<String> nodeList1 = new ArrayList<String>();
       nodeList1.add(nodes[1]);
       amClient.updateBlacklist(nodeList1, null);
-      assertEquals(amClient.blacklistAdditions.size(),2);
-      assertEquals(amClient.blacklistRemovals.size(),1);
+      assertEquals(2, amClient.blacklistAdditions.size());
+      assertEquals(1, amClient.blacklistRemovals.size());
     } finally {
       if (amClient != null && amClient.getServiceState() == STATE.STARTED) {
         amClient.stop();
@@ -606,10 +606,10 @@ public class TestAMRMClient {
     while (iterationsLeft-- > 0) {
       Log.info(" == alloc " + allocatedContainerCount + " it left " + iterationsLeft);
       AllocateResponse allocResponse = amClient.allocate(0.1f);
-      assertTrue(amClient.ask.size() == 0);
-      assertTrue(amClient.release.size() == 0);
+      assertEquals(0, amClient.ask.size());
+      assertEquals(0, amClient.release.size());
         
-      assertTrue(nodeCount == amClient.getClusterNodeCount());
+      assertEquals(nodeCount, amClient.getClusterNodeCount());
       allocatedContainerCount += allocResponse.getAllocatedContainers().size();
         
       if(allocatedContainerCount == 0) {
@@ -654,8 +654,8 @@ public class TestAMRMClient {
       throws YarnException, IOException {
     // setup container request
     
-    assertTrue(amClient.ask.size() == 0);
-    assertTrue(amClient.release.size() == 0);
+    assertEquals(0, amClient.ask.size());
+    assertEquals(0, amClient.release.size());
     
     amClient.addContainerRequest(
         new ContainerRequest(capability, nodes, racks, priority));
@@ -677,11 +677,11 @@ public class TestAMRMClient {
     int containersRequestedAny = amClient.remoteRequestsTable.get(priority)
     .get(ResourceRequest.ANY).get(capability).remoteRequest.getNumContainers();
 
-    assertTrue(containersRequestedNode == 2);
-    assertTrue(containersRequestedRack == 2);
-    assertTrue(containersRequestedAny == 2);
-    assertTrue(amClient.ask.size() == 3);
-    assertTrue(amClient.release.size() == 0);
+    assertEquals(2, containersRequestedNode);
+    assertEquals(2, containersRequestedRack);
+    assertEquals(2, containersRequestedAny);
+    assertEquals(3, amClient.ask.size());
+    assertEquals(0, amClient.release.size());
 
     // RM should allocate container within 2 calls to allocate()
     int allocatedContainerCount = 0;
@@ -695,10 +695,10 @@ public class TestAMRMClient {
     while (allocatedContainerCount < containersRequestedAny
         && iterationsLeft-- > 0) {
       AllocateResponse allocResponse = amClient.allocate(0.1f);
-      assertTrue(amClient.ask.size() == 0);
-      assertTrue(amClient.release.size() == 0);
+      assertEquals(0, amClient.ask.size());
+      assertEquals(0, amClient.release.size());
       
-      assertTrue(nodeCount == amClient.getClusterNodeCount());
+      assertEquals(nodeCount, amClient.getClusterNodeCount());
       allocatedContainerCount += allocResponse.getAllocatedContainers().size();
       for(Container container : allocResponse.getAllocatedContainers()) {
         ContainerId rejectContainerId = container.getId();
@@ -724,19 +724,19 @@ public class TestAMRMClient {
     Assert.assertTrue(receivedNMTokens.size() > 0
         && receivedNMTokens.size() <= nodeCount);
     
-    assertTrue(allocatedContainerCount == containersRequestedAny);
-    assertTrue(amClient.release.size() == 2);
-    assertTrue(amClient.ask.size() == 0);
+    assertEquals(allocatedContainerCount, containersRequestedAny);
+    assertEquals(2, amClient.release.size());
+    assertEquals(0, amClient.ask.size());
     
     // need to tell the AMRMClient that we dont need these resources anymore
     amClient.removeContainerRequest(
         new ContainerRequest(capability, nodes, racks, priority));
     amClient.removeContainerRequest(
         new ContainerRequest(capability, nodes, racks, priority));
-    assertTrue(amClient.ask.size() == 3);
+    assertEquals(3, amClient.ask.size());
     // send 0 container count request for resources that are no longer needed
     ResourceRequest snoopRequest = amClient.ask.iterator().next();
-    assertTrue(snoopRequest.getNumContainers() == 0);
+    assertEquals(0, snoopRequest.getNumContainers());
     
     // test RPC exception handling
     amClient.addContainerRequest(new ContainerRequest(capability, nodes,
@@ -744,7 +744,7 @@ public class TestAMRMClient {
     amClient.addContainerRequest(new ContainerRequest(capability, nodes,
         racks, priority));
     snoopRequest = amClient.ask.iterator().next();
-    assertTrue(snoopRequest.getNumContainers() == 2);
+    assertEquals(2, snoopRequest.getNumContainers());
     
     ApplicationMasterProtocol realRM = amClient.rmClient;
     try {
@@ -768,12 +768,12 @@ public class TestAMRMClient {
       amClient.rmClient = realRM;
     }
 
-    assertTrue(amClient.release.size() == 2);
-    assertTrue(amClient.ask.size() == 3);
+    assertEquals(2, amClient.release.size());
+    assertEquals(3, amClient.ask.size());
     snoopRequest = amClient.ask.iterator().next();
     // verify that the remove request made in between makeRequest and allocate 
     // has not been lost
-    assertTrue(snoopRequest.getNumContainers() == 0);
+    assertEquals(0, snoopRequest.getNumContainers());
     
     iterationsLeft = 3;
     // do a few iterations to ensure RM is not going send new containers
@@ -781,13 +781,13 @@ public class TestAMRMClient {
       // inform RM of rejection
       AllocateResponse allocResponse = amClient.allocate(0.1f);
       // RM did not send new containers because AM does not need any
-      assertTrue(allocResponse.getAllocatedContainers().size() == 0);
+      assertEquals(0, allocResponse.getAllocatedContainers().size());
       if(allocResponse.getCompletedContainersStatuses().size() > 0) {
         for(ContainerStatus cStatus :allocResponse
             .getCompletedContainersStatuses()) {
           if(releases.contains(cStatus.getContainerId())) {
-            assertTrue(cStatus.getState() == ContainerState.COMPLETE);
-            assertTrue(cStatus.getExitStatus() == -100);
+            assertEquals(cStatus.getState(), ContainerState.COMPLETE);
+            assertEquals(-100, cStatus.getExitStatus());
             releases.remove(cStatus.getContainerId());
           }
         }
@@ -797,8 +797,8 @@ public class TestAMRMClient {
         sleep(100);
       }
     }
-    assertTrue(amClient.ask.size() == 0);
-    assertTrue(amClient.release.size() == 0);
+    assertEquals(0, amClient.ask.size());
+    assertEquals(0, amClient.release.size());
   }
   
   private void sleep(int sleepTime) {

Modified: hadoop/common/branches/HDFS-2832/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/resources/yarn-default.xml
URL: http://svn.apache.org/viewvc/hadoop/common/branches/HDFS-2832/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/resources/yarn-default.xml?rev=1547658&r1=1547657&r2=1547658&view=diff
==============================================================================
--- hadoop/common/branches/HDFS-2832/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/resources/yarn-default.xml
(original)
+++ hadoop/common/branches/HDFS-2832/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/resources/yarn-default.xml
Wed Dec  4 00:45:38 2013
@@ -283,8 +283,8 @@
     is implicitly fenced, meaning a single ResourceManager is
     able to use the store at any point in time. More details on this, along
     with setting up appropriate ACLs is discussed under the description for
-    yarn.resourcemanager.zk.state-store.root-node.acl.</description>
-    <name>yarn.resourcemanager.zk.state-store.address</name>
+    yarn.resourcemanager.zk-state-store.root-node.acl.</description>
+    <name>yarn.resourcemanager.zk-state-store.address</name>
     <!--value>127.0.0.1:2181</value-->
   </property>
 
@@ -293,8 +293,15 @@
     ZooKeeper. This may be supplied when using
     org.apache.hadoop.yarn.server.resourcemanager.recovery.ZKRMStateStore
     as the value for yarn.resourcemanager.store.class</description>
-    <name>yarn.resourcemanager.zk.state-store.num-retries</name>
-    <value>3</value>
+    <name>yarn.resourcemanager.zk-state-store.num-retries</name>
+    <value>500</value>
+  </property>
+
+  <property>
+    <description>Retry interval in milliseconds when ZKRMStateStore tries to
+    connect to ZooKeeper.</description>
+    <name>yarn.resourcemanager.zk-state-store.retry-interval-ms</name>
+    <value>2000</value>
   </property>
 
   <property>
@@ -302,16 +309,20 @@
     stored. This must be supplied when using
     org.apache.hadoop.yarn.server.resourcemanager.recovery.ZKRMStateStore
     as the value for yarn.resourcemanager.store.class</description>
-    <name>yarn.resourcemanager.zk.state-store.parent-path</name>
+    <name>yarn.resourcemanager.zk-state-store.parent-path</name>
     <value>/rmstore</value>
   </property>
 
   <property>
-    <description>Timeout when connecting to ZooKeeper.
+    <description>ZooKeeper session timeout in milliseconds. Session expiration
+    is managed by the ZooKeeper cluster itself, not by the client. This value is
+    used by the cluster to determine when the client's session expires.
+    Expirations happens when the cluster does not hear from the client within
+    the specified session timeout period (i.e. no heartbeat).
     This may be supplied when using
     org.apache.hadoop.yarn.server.resourcemanager.recovery.ZKRMStateStore
     as the value for yarn.resourcemanager.store.class</description>
-    <name>yarn.resourcemanager.zk.state-store.timeout.ms</name>
+    <name>yarn.resourcemanager.zk-state-store.timeout-ms</name>
     <value>60000</value>
   </property>
 
@@ -320,7 +331,7 @@
     This may be supplied when using
     org.apache.hadoop.yarn.server.resourcemanager.recovery.ZKRMStateStore
     as the value for yarn.resourcemanager.store.class</description>
-    <name>yarn.resourcemanager.zk.state-store.acl</name>
+    <name>yarn.resourcemanager.zk-state-store.acl</name>
     <value>world:anyone:rwcda</value>
   </property>
 
@@ -336,7 +347,7 @@
       permissions.
 
       By default, when this property is not set, we use the ACLs from
-      yarn.resourcemanager.zk.state-store.acl for shared admin access and
+      yarn.resourcemanager.zk-state-store.acl for shared admin access and
       rm-address:cluster-timestamp for username-based exclusive create-delete
       access.
 
@@ -346,7 +357,7 @@
       ResourceManagers have shared admin access and the Active ResourceManger
       takes over (exclusively) the create-delete access.
     </description>
-    <name>yarn.resourcemanager.zk.state-store.root-node.acl</name>
+    <name>yarn.resourcemanager.zk-state-store.root-node.acl</name>
   </property>
 
   <property>
@@ -360,6 +371,16 @@
   </property>
 
   <property>
+    <description>hdfs client retry policy specification. hdfs client retry
+    is always enabled. Specified in pairs of sleep-time and number-of-retries
+    and (t0, n0), (t1, n1), ..., the first n0 retries sleep t0 milliseconds on
+    average, the following n1 retries sleep t1 milliseconds on average, and so on.
+    </description>
+    <name>yarn.resourcemanager.fs.state-store.retry-policy-spec</name>
+    <value>2000, 500</value>
+  </property>
+
+  <property>
     <description>Enable RM high-availability. When enabled,
       (1) The RM starts in the Standby mode by default, and transitions to
       the Active mode when prompted to.

Modified: hadoop/common/branches/HDFS-2832/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/recovery/FileSystemRMStateStore.java
URL: http://svn.apache.org/viewvc/hadoop/common/branches/HDFS-2832/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/recovery/FileSystemRMStateStore.java?rev=1547658&r1=1547657&r2=1547658&view=diff
==============================================================================
--- hadoop/common/branches/HDFS-2832/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/recovery/FileSystemRMStateStore.java
(original)
+++ hadoop/common/branches/HDFS-2832/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/recovery/FileSystemRMStateStore.java
Wed Dec  4 00:45:38 2013
@@ -94,7 +94,14 @@ public class FileSystemRMStateStore exte
     // create filesystem only now, as part of service-start. By this time, RM is
     // authenticated with kerberos so we are good to create a file-system
     // handle.
-    fs = fsWorkingPath.getFileSystem(getConfig());
+    Configuration conf = new Configuration(getConfig());
+    conf.setBoolean("dfs.client.retry.policy.enabled", true);
+    String retryPolicy =
+        conf.get(YarnConfiguration.FS_RM_STATE_STORE_RETRY_POLICY_SPEC,
+          YarnConfiguration.DEFAULT_FS_RM_STATE_STORE_RETRY_POLICY_SPEC);
+    conf.set("dfs.client.retry.policy.spec", retryPolicy);
+
+    fs = fsWorkingPath.getFileSystem(conf);
     fs.mkdirs(rmDTSecretManagerRoot);
     fs.mkdirs(rmAppRoot);
   }

Modified: hadoop/common/branches/HDFS-2832/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/recovery/ZKRMStateStore.java
URL: http://svn.apache.org/viewvc/hadoop/common/branches/HDFS-2832/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/recovery/ZKRMStateStore.java?rev=1547658&r1=1547657&r2=1547658&view=diff
==============================================================================
--- hadoop/common/branches/HDFS-2832/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/recovery/ZKRMStateStore.java
(original)
+++ hadoop/common/branches/HDFS-2832/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/recovery/ZKRMStateStore.java
Wed Dec  4 00:45:38 2013
@@ -82,6 +82,7 @@ public class ZKRMStateStore extends RMSt
 
   private String zkHostPort = null;
   private int zkSessionTimeout;
+  private long zkRetryInterval;
   private List<ACL> zkAcl;
   private String zkRootNodePath;
   private String rmDTSecretManagerRoot;
@@ -161,6 +162,9 @@ public class ZKRMStateStore extends RMSt
     zkSessionTimeout =
         conf.getInt(YarnConfiguration.ZK_RM_STATE_STORE_TIMEOUT_MS,
             YarnConfiguration.DEFAULT_ZK_RM_STATE_STORE_TIMEOUT_MS);
+    zkRetryInterval =
+        conf.getLong(YarnConfiguration.ZK_RM_STATE_STORE_RETRY_INTERVAL_MS,
+          YarnConfiguration.DEFAULT_ZK_RM_STATE_STORE_RETRY_INTERVAL_MS);
     // Parse authentication from configuration.
     String zkAclConf =
         conf.get(YarnConfiguration.ZK_RM_STATE_STORE_ACL,
@@ -810,6 +814,9 @@ public class ZKRMStateStore extends RMSt
           }
         } catch (KeeperException ke) {
           if (shouldRetry(ke.code()) && ++retry < numRetries) {
+            LOG.info("Waiting for zookeeper to be connected, retry no. + "
+                + retry);
+            Thread.sleep(zkRetryInterval);
             continue;
           }
           throw ke;

Modified: hadoop/common/branches/HDFS-2832/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/TestRMRestart.java
URL: http://svn.apache.org/viewvc/hadoop/common/branches/HDFS-2832/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/TestRMRestart.java?rev=1547658&r1=1547657&r2=1547658&view=diff
==============================================================================
--- hadoop/common/branches/HDFS-2832/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/TestRMRestart.java
(original)
+++ hadoop/common/branches/HDFS-2832/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/TestRMRestart.java
Wed Dec  4 00:45:38 2013
@@ -1247,6 +1247,8 @@ public class TestRMRestart {
     // renewDate before renewing
     Long renewDateBeforeRenew = allTokensRM2.get(dtId1);
     try{
+      // Sleep for one millisecond to make sure renewDataAfterRenew is greater
+      Thread.sleep(1);
       // renew recovered token
       rm2.getRMDTSecretManager().renewToken(token1, "renewer1");
     } catch(Exception e) {

Modified: hadoop/common/branches/HDFS-2832/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/recovery/TestFSRMStateStore.java
URL: http://svn.apache.org/viewvc/hadoop/common/branches/HDFS-2832/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/recovery/TestFSRMStateStore.java?rev=1547658&r1=1547657&r2=1547658&view=diff
==============================================================================
--- hadoop/common/branches/HDFS-2832/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/recovery/TestFSRMStateStore.java
(original)
+++ hadoop/common/branches/HDFS-2832/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/recovery/TestFSRMStateStore.java
Wed Dec  4 00:45:38 2013
@@ -19,6 +19,9 @@
 package org.apache.hadoop.yarn.server.resourcemanager.recovery;
 
 import static org.junit.Assert.assertTrue;
+
+import java.util.concurrent.atomic.AtomicBoolean;
+
 import junit.framework.Assert;
 
 import org.apache.commons.logging.Log;
@@ -33,7 +36,9 @@ import org.apache.hadoop.hdfs.MiniDFSClu
 import org.apache.hadoop.yarn.api.records.ApplicationAttemptId;
 import org.apache.hadoop.yarn.conf.YarnConfiguration;
 import org.apache.hadoop.yarn.server.resourcemanager.recovery.records.RMStateVersion;
+import org.apache.hadoop.yarn.server.resourcemanager.recovery.records.impl.pb.ApplicationStateDataPBImpl;
 import org.apache.hadoop.yarn.server.resourcemanager.recovery.records.impl.pb.RMStateVersionPBImpl;
+import org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMAppState;
 import org.apache.hadoop.yarn.util.ConverterUtils;
 import org.junit.Test;
 
@@ -81,6 +86,8 @@ public class TestFSRMStateStore extends 
       YarnConfiguration conf = new YarnConfiguration();
       conf.set(YarnConfiguration.FS_RM_STATE_STORE_URI,
           workingDirPathURI.toString());
+      conf.set(YarnConfiguration.FS_RM_STATE_STORE_RETRY_POLICY_SPEC,
+        "100,6000");
       this.store = new TestFileSystemRMStore(conf);
       return store;
     }
@@ -139,4 +146,46 @@ public class TestFSRMStateStore extends 
       cluster.shutdown();
     }
   }
+
+  @Test (timeout = 30000)
+  public void testFSRMStateStoreClientRetry() throws Exception {
+    HdfsConfiguration conf = new HdfsConfiguration();
+    MiniDFSCluster cluster =
+        new MiniDFSCluster.Builder(conf).numDataNodes(2).build();
+    cluster.waitActive();
+    try {
+      TestFSRMStateStoreTester fsTester = new TestFSRMStateStoreTester(cluster);
+      final RMStateStore store = fsTester.getRMStateStore();
+      store.setRMDispatcher(new TestDispatcher());
+      final AtomicBoolean assertionFailedInThread = new AtomicBoolean(false);
+      cluster.shutdownNameNodes();
+
+      Thread clientThread = new Thread() {
+        @Override
+        public void run() {
+          try {
+            store.storeApplicationStateInternal("application1",
+              (ApplicationStateDataPBImpl) ApplicationStateDataPBImpl
+                .newApplicationStateData(111, 111, "user", null,
+                  RMAppState.ACCEPTED, "diagnostics", 333));
+          } catch (Exception e) {
+            // TODO 0 datanode exception will not be retried by dfs client, fix
+            // that separately.
+            if (!e.getMessage().contains("could only be replicated" +
+                " to 0 nodes instead of minReplication (=1)")) {
+              assertionFailedInThread.set(true);
+            }
+            e.printStackTrace();
+          }
+        }
+      };
+      Thread.sleep(2000);
+      clientThread.start();
+      cluster.restartNameNode();
+      clientThread.join();
+      Assert.assertFalse(assertionFailedInThread.get());
+    } finally {
+      cluster.shutdown();
+    }
+  }
 }

Modified: hadoop/common/branches/HDFS-2832/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/recovery/TestZKRMStateStoreZKClientConnections.java
URL: http://svn.apache.org/viewvc/hadoop/common/branches/HDFS-2832/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/recovery/TestZKRMStateStoreZKClientConnections.java?rev=1547658&r1=1547657&r2=1547658&view=diff
==============================================================================
--- hadoop/common/branches/HDFS-2832/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/recovery/TestZKRMStateStoreZKClientConnections.java
(original)
+++ hadoop/common/branches/HDFS-2832/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/recovery/TestZKRMStateStoreZKClientConnections.java
Wed Dec  4 00:45:38 2013
@@ -37,6 +37,7 @@ import org.junit.Test;
 
 import java.io.IOException;
 import java.util.concurrent.CyclicBarrier;
+import java.util.concurrent.atomic.AtomicBoolean;
 
 import static org.junit.Assert.assertTrue;
 import static org.junit.Assert.fail;
@@ -114,6 +115,37 @@ public class TestZKRMStateStoreZKClientC
     }
   }
 
+  @Test (timeout = 20000)
+  public void testZKClientRetry() throws Exception {
+    TestZKClient zkClientTester = new TestZKClient();
+    final String path = "/test";
+    YarnConfiguration conf = new YarnConfiguration();
+    conf.setInt(YarnConfiguration.ZK_RM_STATE_STORE_TIMEOUT_MS, 100);
+    conf.setLong(YarnConfiguration.ZK_RM_STATE_STORE_RETRY_INTERVAL_MS, 100);
+    final ZKRMStateStore store =
+        (ZKRMStateStore) zkClientTester.getRMStateStore(conf);
+    TestDispatcher dispatcher = new TestDispatcher();
+    store.setRMDispatcher(dispatcher);
+    final AtomicBoolean assertionFailedInThread = new AtomicBoolean(false);
+
+    stopServer();
+    Thread clientThread = new Thread() {
+      @Override
+      public void run() {
+        try {
+          store.getDataWithRetries(path, true);
+        } catch (Exception e) {
+          e.printStackTrace();
+          assertionFailedInThread.set(true);
+        }
+      }
+    };
+    Thread.sleep(2000);
+    startServer();
+    clientThread.join();
+    Assert.assertFalse(assertionFailedInThread.get());
+  }
+
   @Test(timeout = 20000)
   public void testZKClientDisconnectAndReconnect()
       throws Exception {



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