Author: jlowe
Date: Wed Feb 12 16:51:21 2014
New Revision: 1567676
URL: http://svn.apache.org/r1567676
Log:
MAPREDUCE-5746. Job diagnostics can implicate wrong task for a failed job.
Contributed by Jason Lowe
Modified:
hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/CHANGES.txt
hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/jobhistory/JobHistoryParser.java
hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/test/java/org/apache/hadoop/mapreduce/v2/hs/TestJobHistoryParsing.java
Modified:
hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/CHANGES.txt
URL:
http://svn.apache.org/viewvc/hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/CHANGES.txt?rev=1567676&r1=1567675&r2=1567676&view=diff
==============================================================================
--- hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/CHANGES.txt
(original)
+++ hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/CHANGES.txt Wed
Feb 12 16:51:21 2014
@@ -18,6 +18,9 @@ Release 0.23.11 - UNRELEASED
MAPREDUCE-5454. TestDFSIO fails intermittently on JDK7 (Karthik Kambatla
via jlowe)
+ MAPREDUCE-5746. Job diagnostics can implicate wrong task for a failed job
+ (jlowe)
+
Release 0.23.10 - 2013-12-09
INCOMPATIBLE CHANGES
Modified:
hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/jobhistory/JobHistoryParser.java
URL:
http://svn.apache.org/viewvc/hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/jobhistory/JobHistoryParser.java?rev=1567676&r1=1567675&r2=1567676&view=diff
==============================================================================
---
hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/jobhistory/JobHistoryParser.java
(original)
+++
hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/jobhistory/JobHistoryParser.java
Wed Feb 12 16:51:21 2014
@@ -344,8 +344,10 @@ public class JobHistoryParser implements
taskInfo.finishTime = event.getFinishTime();
taskInfo.error = StringInterner.weakIntern(event.getError());
taskInfo.failedDueToAttemptId = event.getFailedAttemptID();
- info.errorInfo = "Task " + taskInfo.taskId +" failed " +
- taskInfo.attemptsMap.size() + " times ";
+ if (info.errorInfo.isEmpty()) {
+ info.errorInfo = "Task " + taskInfo.taskId + " failed " +
+ taskInfo.attemptsMap.size() + " times ";
+ }
}
private void handleTaskStartedEvent(TaskStartedEvent event) {
Modified:
hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/test/java/org/apache/hadoop/mapreduce/v2/hs/TestJobHistoryParsing.java
URL:
http://svn.apache.org/viewvc/hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/test/java/org/apache/hadoop/mapreduce/v2/hs/TestJobHistoryParsing.java?rev=1567676&r1=1567675&r2=1567676&view=diff
==============================================================================
---
hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/test/java/org/apache/hadoop/mapreduce/v2/hs/TestJobHistoryParsing.java
(original)
+++
hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/test/java/org/apache/hadoop/mapreduce/v2/hs/TestJobHistoryParsing.java
Wed Feb 12 16:51:21 2014
@@ -41,6 +41,7 @@ import org.apache.hadoop.fs.CommonConfig
import org.apache.hadoop.fs.FSDataInputStream;
import org.apache.hadoop.fs.FileContext;
import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.mapreduce.JobID;
import org.apache.hadoop.mapreduce.MRJobConfig;
import org.apache.hadoop.mapreduce.TaskID;
import org.apache.hadoop.mapreduce.TypeConverter;
@@ -52,7 +53,9 @@ import org.apache.hadoop.mapreduce.jobhi
import org.apache.hadoop.mapreduce.jobhistory.JobHistoryParser.JobInfo;
import org.apache.hadoop.mapreduce.jobhistory.JobHistoryParser.TaskAttemptInfo;
import org.apache.hadoop.mapreduce.jobhistory.JobHistoryParser.TaskInfo;
+import org.apache.hadoop.mapreduce.jobhistory.TaskFailedEvent;
import org.apache.hadoop.mapreduce.jobhistory.TaskFinishedEvent;
+import org.apache.hadoop.mapreduce.jobhistory.TaskStartedEvent;
import org.apache.hadoop.mapreduce.v2.api.records.JobId;
import org.apache.hadoop.mapreduce.v2.api.records.JobState;
import org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptId;
@@ -715,4 +718,40 @@ public class TestJobHistoryParsing {
assertNull(test.getAMInfos());
}
+
+ @Test
+ public void testMultipleFailedTasks() throws Exception {
+ JobHistoryParser parser =
+ new JobHistoryParser(Mockito.mock(FSDataInputStream.class));
+ EventReader reader = Mockito.mock(EventReader.class);
+ final AtomicInteger numEventsRead = new AtomicInteger(0); // Hack!
+ final org.apache.hadoop.mapreduce.TaskType taskType =
+ org.apache.hadoop.mapreduce.TaskType.MAP;
+ final TaskID[] tids = new TaskID[2];
+ JobID jid = new JobID("1", 1);
+ tids[0] = new TaskID(jid, taskType, 0);
+ tids[1] = new TaskID(jid, taskType, 1);
+ Mockito.when(reader.getNextEvent()).thenAnswer(
+ new Answer<HistoryEvent>() {
+ public HistoryEvent answer(InvocationOnMock invocation)
+ throws IOException {
+ // send two task start and two task fail events for tasks 0 and 1
+ int eventId = numEventsRead.getAndIncrement();
+ TaskID tid = tids[eventId & 0x1];
+ if (eventId < 2) {
+ return new TaskStartedEvent(tid, 0, taskType, "");
+ }
+ if (eventId < 4) {
+ TaskFailedEvent tfe = new TaskFailedEvent(tid, 0, taskType,
+ "failed", "FAILED", null);
+ tfe.setDatum(tfe.getDatum());
+ return tfe;
+ }
+ return null;
+ }
+ });
+ JobInfo info = parser.parse(reader);
+ assertTrue("Task 0 not implicated",
+ info.getErrorInfo().contains(tids[0].toString()));
+ }
}
