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YARN-3793. Several NPEs when deleting local files on NM recovery. Contributed by Varun Saxena 

(cherry picked from commit b5cdf78e8e)
This commit is contained in:
Jason Lowe 2015-07-01 21:13:32 +00:00
parent 8a4970e845
commit a721b9d812
3 changed files with 42 additions and 3 deletions
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3
hadoop-yarn-project/CHANGES.txt
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@ -550,6 +550,9 @@ Release 2.7.2 - UNRELEASED
BUG FIXES
YARN-3793. Several NPEs when deleting local files on NM recovery (Varun
Saxena via jlowe)
Release 2.7.1 - UNRELEASED
INCOMPATIBLE CHANGES

6
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/logaggregation/AppLogAggregatorImpl.java
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@ -276,10 +276,10 @@ public class AppLogAggregatorImpl implements AppLogAggregator {
aggregator.doContainerLogAggregation(writer, appFinished);
if (uploadedFilePathsInThisCycle.size() > 0) {
uploadedLogsInThisCycle = true;
this.delService.delete(this.userUgi.getShortUserName(), null,
uploadedFilePathsInThisCycle
.toArray(new Path[uploadedFilePathsInThisCycle.size()]));
}
this.delService.delete(this.userUgi.getShortUserName(), null,
uploadedFilePathsInThisCycle
.toArray(new Path[uploadedFilePathsInThisCycle.size()]));
// This container is finished, and all its logs have been uploaded,
// remove it from containerLogAggregators.

36
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/test/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/logaggregation/TestLogAggregationService.java
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@ -31,6 +31,7 @@ import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.never;
import static org.mockito.Mockito.reset;
import static org.mockito.Mockito.spy;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;
@ -280,6 +281,41 @@ public class TestLogAggregationService extends BaseContainerManagerTest {
verifyLocalFileDeletion(logAggregationService);
}
/* Test to verify fix for YARN-3793 */
@Test
public void testNoLogsUploadedOnAppFinish() throws Exception {
this.delSrvc = new DeletionService(createContainerExecutor());
delSrvc = spy(delSrvc);
this.delSrvc.init(conf);
this.conf.set(YarnConfiguration.NM_LOG_DIRS, localLogDir.getAbsolutePath());
this.conf.set(YarnConfiguration.NM_REMOTE_APP_LOG_DIR,
this.remoteRootLogDir.getAbsolutePath());
LogAggregationService logAggregationService = new LogAggregationService(
dispatcher, this.context, this.delSrvc, super.dirsHandler);
logAggregationService.init(this.conf);
logAggregationService.start();
ApplicationId app = BuilderUtils.newApplicationId(1234, 1);
File appLogDir = new File(localLogDir, ConverterUtils.toString(app));
appLogDir.mkdir();
LogAggregationContext context =
LogAggregationContext.newInstance("HOST*", "sys*");
logAggregationService.handle(new LogHandlerAppStartedEvent(app, this.user,
null, ContainerLogsRetentionPolicy.ALL_CONTAINERS, this.acls, context));
ApplicationAttemptId appAttemptId =
BuilderUtils.newApplicationAttemptId(app, 1);
ContainerId cont = BuilderUtils.newContainerId(appAttemptId, 1);
writeContainerLogs(appLogDir, cont, new String[] { "stdout",
"stderr", "syslog" });
logAggregationService.handle(new LogHandlerContainerFinishedEvent(cont, 0));
logAggregationService.handle(new LogHandlerAppFinishedEvent(app));
logAggregationService.stop();
delSrvc.stop();
// Aggregated logs should not be deleted if not uploaded.
verify(delSrvc, times(0)).delete(user, null);
}
@Test
public void testNoContainerOnNode() throws Exception {