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Posted to common-commits@hadoop.apache.org by aw...@apache.org on 2016/08/30 15:09:04 UTC

[14/16] hadoop git commit: MAPREDUCE-4784. TestRecovery occasionally fails. Contributed by Haibo Chen

MAPREDUCE-4784. TestRecovery occasionally fails. Contributed by Haibo Chen


Project: http://git-wip-us.apache.org/repos/asf/hadoop/repo
Commit: http://git-wip-us.apache.org/repos/asf/hadoop/commit/af508605
Tree: http://git-wip-us.apache.org/repos/asf/hadoop/tree/af508605
Diff: http://git-wip-us.apache.org/repos/asf/hadoop/diff/af508605

Branch: refs/heads/HADOOP-13341
Commit: af508605a9edc126c170160291dbc2fe58b66dea
Parents: 4bd45f5
Author: Jason Lowe <jl...@apache.org>
Authored: Tue Aug 30 13:59:57 2016 +0000
Committer: Jason Lowe <jl...@apache.org>
Committed: Tue Aug 30 13:59:57 2016 +0000

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 .../hadoop/mapreduce/v2/app/TestRecovery.java   | 27 +++++++++++++++-----
 1 file changed, 21 insertions(+), 6 deletions(-)
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http://git-wip-us.apache.org/repos/asf/hadoop/blob/af508605/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/test/java/org/apache/hadoop/mapreduce/v2/app/TestRecovery.java
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diff --git a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/test/java/org/apache/hadoop/mapreduce/v2/app/TestRecovery.java b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/test/java/org/apache/hadoop/mapreduce/v2/app/TestRecovery.java
index 3ede2e9..9d5f0ae 100644
--- a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/test/java/org/apache/hadoop/mapreduce/v2/app/TestRecovery.java
+++ b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/test/java/org/apache/hadoop/mapreduce/v2/app/TestRecovery.java
@@ -35,6 +35,7 @@ import java.util.Iterator;
 import java.util.List;
 import java.util.Map;
 
+import java.util.concurrent.TimeoutException;
 import org.junit.Assert;
 
 import org.apache.commons.logging.Log;
@@ -180,7 +181,10 @@ public class TestRecovery {
     Iterator<TaskAttempt> itr = mapTask1.getAttempts().values().iterator();
     itr.next();
     TaskAttempt task1Attempt2 = itr.next();
-    
+
+    // wait for the second task attempt to be assigned.
+    waitForContainerAssignment(task1Attempt2);
+
     // This attempt will automatically fail because of the way ContainerLauncher
     // is setup
     // This attempt 'disappears' from JobHistory and so causes MAPREDUCE-3846
@@ -318,6 +322,21 @@ public class TestRecovery {
   }
 
   /**
+   * Wait for a task attempt to be assigned a container to.
+   * @param task1Attempt2 the task attempt to wait for its container assignment
+   * @throws TimeoutException if times out
+   * @throws InterruptedException if interrupted
+   */
+  public static void waitForContainerAssignment(final TaskAttempt task1Attempt2)
+      throws TimeoutException, InterruptedException {
+    GenericTestUtils.waitFor(new Supplier<Boolean>() {
+      @Override public Boolean get() {
+        return task1Attempt2.getAssignedContainerID() != null;
+      }
+    }, 10, 10000);
+  }
+
+  /**
    * AM with 3 maps and 0 reduce. AM crashes after the first two tasks finishes
    * and recovers completely and succeeds in the second generation.
    * 
@@ -1199,11 +1218,7 @@ public class TestRecovery {
     TaskAttempt task2Attempt = mapTask2.getAttempts().values().iterator().next();
 
     // wait for the second task attempt to be assigned.
-    GenericTestUtils.waitFor(new Supplier<Boolean>() {
-      @Override public Boolean get() {
-        return task1Attempt2.getAssignedContainerID() != null;
-      }
-    }, 10, 10000);
+    waitForContainerAssignment(task1Attempt2);
     ContainerId t1a2contId = task1Attempt2.getAssignedContainerID();
 
     LOG.info(t1a2contId.toString());


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