MAPREDUCE-4646. Fixed MR framework to send diagnostic information correctly to clients in case of failed jobs also. Contributed by Jason Lowe.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1383709 13f79535-47bb-0310-9956-ffa450edef68

hadoop-mapreduce-project/CHANGES.txt

@@ -141,6 +141,9 @@ Release 2.0.3-alpha - Unreleased
     MAPREDUCE-4607. Race condition in ReduceTask completion can result in Task
     being incorrectly failed. (Bikas Saha via tomwhite)
 
+    MAPREDUCE-4646. Fixed MR framework to send diagnostic information correctly
+    to clients in case of failed jobs also. (Jason Lowe via vinodkv)
+
 Release 2.0.2-alpha - 2012-09-07 
 
   INCOMPATIBLE CHANGES

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/job/impl/JobImpl.java

@@ -582,17 +582,23 @@ public class JobImpl implements org.apache.hadoop.mapreduce.v2.app.job.Job,
       String jobFile =
           remoteJobConfFile == null ? "" : remoteJobConfFile.toString();
 
+      StringBuilder diagsb = new StringBuilder();
+      for (String s : getDiagnostics()) {
+        diagsb.append(s).append("\n");
+      }
+
       if (getState() == JobState.NEW) {
         return MRBuilderUtils.newJobReport(jobId, jobName, username, state,
             appSubmitTime, startTime, finishTime, setupProgress, 0.0f, 0.0f,
-            cleanupProgress, jobFile, amInfos, isUber);
+            cleanupProgress, jobFile, amInfos, isUber, diagsb.toString());
       }
 
       computeProgress();
-      return MRBuilderUtils.newJobReport(jobId, jobName, username, state,
-          appSubmitTime, startTime, finishTime, setupProgress,
+      JobReport report = MRBuilderUtils.newJobReport(jobId, jobName, username,
+          state, appSubmitTime, startTime, finishTime, setupProgress,
           this.mapProgress, this.reduceProgress,
-          cleanupProgress, jobFile, amInfos, isUber);
+          cleanupProgress, jobFile, amInfos, isUber, diagsb.toString());
+      return report;
     } finally {
       readLock.unlock();
     }

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/test/java/org/apache/hadoop/mapreduce/v2/app/TestRMContainerAllocator.java

@@ -138,7 +138,7 @@ public class TestRMContainerAllocator {
     Job mockJob = mock(Job.class);
     when(mockJob.getReport()).thenReturn(
         MRBuilderUtils.newJobReport(jobId, "job", "user", JobState.RUNNING, 0, 
-            0, 0, 0, 0, 0, 0, "jobfile", null, false));
+            0, 0, 0, 0, 0, 0, "jobfile", null, false, ""));
     MyContainerAllocator allocator = new MyContainerAllocator(rm, conf,
         appAttemptId, mockJob);
 
@@ -215,7 +215,7 @@ public class TestRMContainerAllocator {
     Job mockJob = mock(Job.class);
     when(mockJob.getReport()).thenReturn(
         MRBuilderUtils.newJobReport(jobId, "job", "user", JobState.RUNNING, 0,
-            0, 0, 0, 0, 0, 0, "jobfile", null, false));
+            0, 0, 0, 0, 0, 0, "jobfile", null, false, ""));
     MyContainerAllocator allocator = new MyContainerAllocator(rm, conf,
         appAttemptId, mockJob);
 
@@ -281,7 +281,7 @@ public class TestRMContainerAllocator {
     Job mockJob = mock(Job.class);
     when(mockJob.getReport()).thenReturn(
         MRBuilderUtils.newJobReport(jobId, "job", "user", JobState.RUNNING, 0,
-            0, 0, 0, 0, 0, 0, "jobfile", null, false));
+            0, 0, 0, 0, 0, 0, "jobfile", null, false, ""));
     MyContainerAllocator allocator = new MyContainerAllocator(rm, conf,
         appAttemptId, mockJob);
 
@@ -723,7 +723,7 @@ public class TestRMContainerAllocator {
     Job mockJob = mock(Job.class);
     when(mockJob.getReport()).thenReturn(
         MRBuilderUtils.newJobReport(jobId, "job", "user", JobState.RUNNING, 0,
-            0, 0, 0, 0, 0, 0, "jobfile", null, false));
+            0, 0, 0, 0, 0, 0, "jobfile", null, false, ""));
     MyContainerAllocator allocator = new MyContainerAllocator(rm, conf,
         appAttemptId, mockJob);
 
@@ -827,7 +827,7 @@ public class TestRMContainerAllocator {
     Job mockJob = mock(Job.class);
     when(mockJob.getReport()).thenReturn(
         MRBuilderUtils.newJobReport(jobId, "job", "user", JobState.RUNNING, 0,
-            0, 0, 0, 0, 0, 0, "jobfile", null, false));
+            0, 0, 0, 0, 0, 0, "jobfile", null, false, ""));
     MyContainerAllocator allocator =
         new MyContainerAllocator(rm, conf, appAttemptId, mockJob);
 
@@ -993,7 +993,7 @@ public class TestRMContainerAllocator {
     Job mockJob = mock(Job.class);
     when(mockJob.getReport()).thenReturn(
         MRBuilderUtils.newJobReport(jobId, "job", "user", JobState.RUNNING, 0,
-            0, 0, 0, 0, 0, 0, "jobfile", null, false));
+            0, 0, 0, 0, 0, 0, "jobfile", null, false, ""));
     MyContainerAllocator allocator = new MyContainerAllocator(rm, conf,
         appAttemptId, mockJob);
 
@@ -1445,7 +1445,7 @@ public class TestRMContainerAllocator {
     Job job = mock(Job.class);
     when(job.getReport()).thenReturn(
         MRBuilderUtils.newJobReport(jobId, "job", "user", JobState.RUNNING, 0,
-            0, 0, 0, 0, 0, 0, "jobfile", null, false));
+            0, 0, 0, 0, 0, 0, "jobfile", null, false, ""));
     doReturn(10).when(job).getTotalMaps();
     doReturn(10).when(job).getTotalReduces();
     doReturn(0).when(job).getCompletedMaps();

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/test/java/org/apache/hadoop/mapreduce/v2/app/job/impl/TestJobImpl.java

@@ -45,11 +45,14 @@ 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.TaskId;
 import org.apache.hadoop.mapreduce.v2.app.job.Task;
+import org.apache.hadoop.mapreduce.v2.app.job.event.JobDiagnosticsUpdateEvent;
 import org.apache.hadoop.mapreduce.v2.app.job.event.JobEvent;
+import org.apache.hadoop.mapreduce.v2.app.job.event.JobEventType;
 import org.apache.hadoop.mapreduce.v2.app.job.impl.JobImpl.InitTransition;
 import org.apache.hadoop.mapreduce.v2.app.job.impl.JobImpl.JobNoTasksCompletedTransition;
 import org.apache.hadoop.mapreduce.v2.app.metrics.MRAppMetrics;
 import org.apache.hadoop.security.UserGroupInformation;
+import org.apache.hadoop.yarn.SystemClock;
 import org.apache.hadoop.yarn.api.records.ApplicationAttemptId;
 import org.apache.hadoop.yarn.event.EventHandler;
 import org.apache.hadoop.yarn.util.Records;
@@ -172,6 +175,8 @@ public class TestJobImpl {
     t.testCheckJobCompleteSuccess();
     t.testCheckJobCompleteSuccessFailed();
     t.testCheckAccess();
+    t.testReportDiagnostics();
+    t.testUberDecision();
   }
 
   @Test
@@ -241,6 +246,41 @@ public class TestJobImpl {
     Assert.assertTrue(job5.checkAccess(ugi1, null));
     Assert.assertTrue(job5.checkAccess(ugi2, null));
   }
+
+  @Test
+  public void testReportDiagnostics() throws Exception {
+    JobID jobID = JobID.forName("job_1234567890000_0001");
+    JobId jobId = TypeConverter.toYarn(jobID);
+    final String diagMsg = "some diagnostic message";
+    final JobDiagnosticsUpdateEvent diagUpdateEvent =
+        new JobDiagnosticsUpdateEvent(jobId, diagMsg);
+    MRAppMetrics mrAppMetrics = MRAppMetrics.create();
+    JobImpl job = new JobImpl(jobId, Records
+        .newRecord(ApplicationAttemptId.class), new Configuration(),
+        mock(EventHandler.class),
+        null, mock(JobTokenSecretManager.class), null,
+        new SystemClock(), null,
+        mrAppMetrics, mock(OutputCommitter.class),
+        true, null, 0, null, null);
+    job.handle(diagUpdateEvent);
+    String diagnostics = job.getReport().getDiagnostics();
+    Assert.assertNotNull(diagnostics);
+    Assert.assertTrue(diagnostics.contains(diagMsg));
+
+    job = new JobImpl(jobId, Records
+        .newRecord(ApplicationAttemptId.class), new Configuration(),
+        mock(EventHandler.class),
+        null, mock(JobTokenSecretManager.class), null,
+        new SystemClock(), null,
+        mrAppMetrics, mock(OutputCommitter.class),
+        true, null, 0, null, null);
+    job.handle(new JobEvent(jobId, JobEventType.JOB_KILL));
+    job.handle(diagUpdateEvent);
+    diagnostics = job.getReport().getDiagnostics();
+    Assert.assertNotNull(diagnostics);
+    Assert.assertTrue(diagnostics.contains(diagMsg));
+  }
+
   @Test
   public void testUberDecision() throws Exception {
 

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-common/src/main/java/org/apache/hadoop/mapreduce/v2/util/MRBuilderUtils.java

@@ -67,7 +67,7 @@ public class MRBuilderUtils {
       String userName, JobState state, long submitTime, long startTime, long finishTime,
       float setupProgress, float mapProgress, float reduceProgress,
       float cleanupProgress, String jobFile, List<AMInfo> amInfos,
-      boolean isUber) {
+      boolean isUber, String diagnostics) {
     JobReport report = Records.newRecord(JobReport.class);
     report.setJobId(jobId);
     report.setJobName(jobName);
@@ -83,6 +83,7 @@ public class MRBuilderUtils {
     report.setJobFile(jobFile);
     report.setAMInfos(amInfos);
     report.setIsUber(isUber);
+    report.setDiagnostics(diagnostics);
     return report;
   }
 

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient/src/test/java/org/apache/hadoop/mapred/TestClientServiceDelegate.java

@@ -219,7 +219,8 @@ public class TestClientServiceDelegate {
     GetJobReportResponse jobReportResponse1 = mock(GetJobReportResponse.class);
     when(jobReportResponse1.getJobReport()).thenReturn(
         MRBuilderUtils.newJobReport(jobId, "jobName-firstGen", "user",
-            JobState.RUNNING, 0, 0, 0, 0, 0, 0, 0, "anything", null, false));
+            JobState.RUNNING, 0, 0, 0, 0, 0, 0, 0, "anything", null,
+            false, ""));
 
     // First AM returns a report with jobName firstGen and simulates AM shutdown
     // on second invocation.
@@ -231,7 +232,8 @@ public class TestClientServiceDelegate {
     GetJobReportResponse jobReportResponse2 = mock(GetJobReportResponse.class);
     when(jobReportResponse2.getJobReport()).thenReturn(
         MRBuilderUtils.newJobReport(jobId, "jobName-secondGen", "user",
-            JobState.RUNNING, 0, 0, 0, 0, 0, 0, 0, "anything", null, false));
+            JobState.RUNNING, 0, 0, 0, 0, 0, 0, 0, "anything", null,
+            false, ""));
 
     // Second AM generation returns a report with jobName secondGen
     MRClientProtocol secondGenAMProxy = mock(MRClientProtocol.class);