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From jl...@apache.org
Subject hadoop git commit: YARN-5630. NM fails to start after downgrade from 2.8 to 2.7. Contributed by Jason Lowe
Date Tue, 13 Sep 2016 14:42:55 GMT
Repository: hadoop
Updated Branches:
  refs/heads/trunk 729de3e6b -> e79330973


YARN-5630. NM fails to start after downgrade from 2.8 to 2.7. Contributed by Jason Lowe


Project: http://git-wip-us.apache.org/repos/asf/hadoop/repo
Commit: http://git-wip-us.apache.org/repos/asf/hadoop/commit/e7933097
Tree: http://git-wip-us.apache.org/repos/asf/hadoop/tree/e7933097
Diff: http://git-wip-us.apache.org/repos/asf/hadoop/diff/e7933097

Branch: refs/heads/trunk
Commit: e7933097354a246b080b46f1a4ca2ef0f39f3b38
Parents: 729de3e
Author: Jason Lowe <jlowe@apache.org>
Authored: Tue Sep 13 14:41:27 2016 +0000
Committer: Jason Lowe <jlowe@apache.org>
Committed: Tue Sep 13 14:41:27 2016 +0000

----------------------------------------------------------------------
 .../recovery/NMLeveldbStateStoreService.java    | 23 ++++--
 .../TestNMLeveldbStateStoreService.java         | 84 +++++++++++---------
 2 files changed, 65 insertions(+), 42 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/hadoop/blob/e7933097/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/recovery/NMLeveldbStateStoreService.java
----------------------------------------------------------------------
diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/recovery/NMLeveldbStateStoreService.java
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/recovery/NMLeveldbStateStoreService.java
index a30024a..dc07b56 100644
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/recovery/NMLeveldbStateStoreService.java
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/recovery/NMLeveldbStateStoreService.java
@@ -277,21 +277,24 @@ public class NMLeveldbStateStoreService extends NMStateStoreService
{
   @Override
   public void storeContainer(ContainerId containerId, int containerVersion,
       StartContainerRequest startRequest) throws IOException {
+    String idStr = containerId.toString();
     if (LOG.isDebugEnabled()) {
-      LOG.debug("storeContainer: containerId= " + containerId
+      LOG.debug("storeContainer: containerId= " + idStr
           + ", startRequest= " + startRequest);
     }
-    String keyRequest = CONTAINERS_KEY_PREFIX + containerId.toString()
+    String keyRequest = CONTAINERS_KEY_PREFIX + idStr
         + CONTAINER_REQUEST_KEY_SUFFIX;
-    String keyVersion = CONTAINERS_KEY_PREFIX + containerId.toString()
-        + CONTAINER_VERSION_KEY_SUFFIX;
+    String keyVersion = getContainerVersionKey(idStr);
     try {
       WriteBatch batch = db.createWriteBatch();
       try {
         batch.put(bytes(keyRequest),
             ((StartContainerRequestPBImpl) startRequest)
                 .getProto().toByteArray());
-        batch.put(bytes(keyVersion), bytes(Integer.toString(containerVersion)));
+        if (containerVersion != 0) {
+          batch.put(bytes(keyVersion),
+              bytes(Integer.toString(containerVersion)));
+        }
         db.write(batch);
       } finally {
         batch.close();
@@ -301,6 +304,11 @@ public class NMLeveldbStateStoreService extends NMStateStoreService {
     }
   }
 
+  @VisibleForTesting
+  String getContainerVersionKey(String containerId) {
+    return CONTAINERS_KEY_PREFIX + containerId + CONTAINER_VERSION_KEY_SUFFIX;
+  }
+
   @Override
   public void storeContainerQueued(ContainerId containerId) throws IOException {
     if (LOG.isDebugEnabled()) {
@@ -1222,6 +1230,11 @@ public class NMLeveldbStateStoreService extends NMStateStoreService
{
     return CURRENT_VERSION_INFO;
   }
   
+  @VisibleForTesting
+  DB getDB() {
+    return db;
+  }
+
   /**
    * 1) Versioning scheme: major.minor. For e.g. 1.0, 1.1, 1.2...1.25, 2.0 etc.
    * 2) Any incompatible change of state-store is a major upgrade, and any

http://git-wip-us.apache.org/repos/asf/hadoop/blob/e7933097/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/test/java/org/apache/hadoop/yarn/server/nodemanager/recovery/TestNMLeveldbStateStoreService.java
----------------------------------------------------------------------
diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/test/java/org/apache/hadoop/yarn/server/nodemanager/recovery/TestNMLeveldbStateStoreService.java
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/test/java/org/apache/hadoop/yarn/server/nodemanager/recovery/TestNMLeveldbStateStoreService.java
index 1b21628..e93bbc9 100644
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/test/java/org/apache/hadoop/yarn/server/nodemanager/recovery/TestNMLeveldbStateStoreService.java
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/test/java/org/apache/hadoop/yarn/server/nodemanager/recovery/TestNMLeveldbStateStoreService.java
@@ -18,6 +18,7 @@
 
 package org.apache.hadoop.yarn.server.nodemanager.recovery;
 
+import static org.fusesource.leveldbjni.JniDBFactory.bytes;
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.assertNull;
@@ -78,7 +79,6 @@ import org.apache.hadoop.yarn.server.records.Version;
 import org.apache.hadoop.yarn.server.security.BaseContainerTokenSecretManager;
 import org.apache.hadoop.yarn.server.security.BaseNMTokenSecretManager;
 import org.apache.hadoop.yarn.server.utils.BuilderUtils;
-import org.apache.hadoop.yarn.util.ConverterUtils;
 import org.iq80.leveldb.DB;
 import org.junit.After;
 import org.junit.Assert;
@@ -226,48 +226,21 @@ public class TestNMLeveldbStateStoreService {
     ApplicationAttemptId appAttemptId =
         ApplicationAttemptId.newInstance(appId, 4);
     ContainerId containerId = ContainerId.newContainerId(appAttemptId, 5);
-    LocalResource lrsrc = LocalResource.newInstance(
-        URL.newInstance("hdfs", "somehost", 12345, "/some/path/to/rsrc"),
-        LocalResourceType.FILE, LocalResourceVisibility.APPLICATION, 123L,
-        1234567890L);
-    Map<String, LocalResource> localResources =
-        new HashMap<String, LocalResource>();
-    localResources.put("rsrc", lrsrc);
-    Map<String, String> env = new HashMap<String, String>();
-    env.put("somevar", "someval");
-    List<String> containerCmds = new ArrayList<String>();
-    containerCmds.add("somecmd");
-    containerCmds.add("somearg");
-    Map<String, ByteBuffer> serviceData = new HashMap<String, ByteBuffer>();
-    serviceData.put("someservice",
-        ByteBuffer.wrap(new byte[] { 0x1, 0x2, 0x3 }));
-    ByteBuffer containerTokens =
-        ByteBuffer.wrap(new byte[] { 0x7, 0x8, 0x9, 0xa });
-    Map<ApplicationAccessType, String> acls =
-        new HashMap<ApplicationAccessType, String>();
-    acls.put(ApplicationAccessType.VIEW_APP, "viewuser");
-    acls.put(ApplicationAccessType.MODIFY_APP, "moduser");
-    ContainerLaunchContext clc = ContainerLaunchContext.newInstance(
-        localResources, env, containerCmds, serviceData, containerTokens,
-        acls);
-    Resource containerRsrc = Resource.newInstance(1357, 3);
-    ContainerTokenIdentifier containerTokenId =
-        new ContainerTokenIdentifier(containerId, "host", "user",
-            containerRsrc, 9876543210L, 42, 2468, Priority.newInstance(7),
-            13579);
-    Token containerToken = Token.newInstance(containerTokenId.getBytes(),
-        ContainerTokenIdentifier.KIND.toString(), "password".getBytes(),
-        "tokenservice");
-    StartContainerRequest containerReq =
-        StartContainerRequest.newInstance(clc, containerToken);
+    StartContainerRequest containerReq = createContainerRequest(containerId);
 
     // store a container and verify recovered
-    stateStore.storeContainer(containerId, 1, containerReq);
+    stateStore.storeContainer(containerId, 0, containerReq);
+
+    // verify the container version key is not stored for new containers
+    DB db = stateStore.getDB();
+    assertNull("version key present for new container", db.get(bytes(
+        stateStore.getContainerVersionKey(containerId.toString()))));
+
     restartStateStore();
     recoveredContainers = stateStore.loadContainersState();
     assertEquals(1, recoveredContainers.size());
     RecoveredContainerState rcs = recoveredContainers.get(0);
-    assertEquals(1, rcs.getVersion());
+    assertEquals(0, rcs.getVersion());
     assertEquals(RecoveredContainerStatus.REQUESTED, rcs.getStatus());
     assertEquals(ContainerExitStatus.INVALID, rcs.getExitCode());
     assertEquals(false, rcs.getKilled());
@@ -368,6 +341,43 @@ public class TestNMLeveldbStateStoreService {
     assertTrue(recoveredContainers.isEmpty());
   }
 
+  private StartContainerRequest createContainerRequest(
+      ContainerId containerId) {
+    LocalResource lrsrc = LocalResource.newInstance(
+        URL.newInstance("hdfs", "somehost", 12345, "/some/path/to/rsrc"),
+        LocalResourceType.FILE, LocalResourceVisibility.APPLICATION, 123L,
+        1234567890L);
+    Map<String, LocalResource> localResources =
+        new HashMap<String, LocalResource>();
+    localResources.put("rsrc", lrsrc);
+    Map<String, String> env = new HashMap<String, String>();
+    env.put("somevar", "someval");
+    List<String> containerCmds = new ArrayList<String>();
+    containerCmds.add("somecmd");
+    containerCmds.add("somearg");
+    Map<String, ByteBuffer> serviceData = new HashMap<String, ByteBuffer>();
+    serviceData.put("someservice",
+        ByteBuffer.wrap(new byte[] { 0x1, 0x2, 0x3 }));
+    ByteBuffer containerTokens =
+        ByteBuffer.wrap(new byte[] { 0x7, 0x8, 0x9, 0xa });
+    Map<ApplicationAccessType, String> acls =
+        new HashMap<ApplicationAccessType, String>();
+    acls.put(ApplicationAccessType.VIEW_APP, "viewuser");
+    acls.put(ApplicationAccessType.MODIFY_APP, "moduser");
+    ContainerLaunchContext clc = ContainerLaunchContext.newInstance(
+        localResources, env, containerCmds, serviceData, containerTokens,
+        acls);
+    Resource containerRsrc = Resource.newInstance(1357, 3);
+    ContainerTokenIdentifier containerTokenId =
+        new ContainerTokenIdentifier(containerId, "host", "user",
+            containerRsrc, 9876543210L, 42, 2468, Priority.newInstance(7),
+            13579);
+    Token containerToken = Token.newInstance(containerTokenId.getBytes(),
+        ContainerTokenIdentifier.KIND.toString(), "password".getBytes(),
+        "tokenservice");
+    return StartContainerRequest.newInstance(clc, containerToken);
+  }
+
   @Test
   public void testStartResourceLocalization() throws IOException {
     String user = "somebody";


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