Rajesh Balamohan created TEZ-2298:
-------------------------------------
Summary: Ignore sending failure message, when
TaskReporter$HeartbeatCallable is shutdown
Key: TEZ-2298
URL: https://issues.apache.org/jira/browse/TEZ-2298
Project: Apache Tez
Issue Type: Bug
Reporter: Rajesh Balamohan
{noformat}
2015-04-09 03:18:37,002 INFO [TezChild] task.TezTaskRunner: Ignoring the
following exception since a previous exception is already registered
java.lang.NullPointerException
at
org.apache.tez.runtime.task.TaskReporter$HeartbeatCallable.access$300(TaskReporter.java:121)
at
org.apache.tez.runtime.task.TaskReporter.taskFailed(TaskReporter.java:383)
at
org.apache.tez.runtime.task.TezTaskRunner.sendFailure(TezTaskRunner.java:265)
at
org.apache.tez.runtime.task.TezTaskRunner.access$600(TezTaskRunner.java:51)
at
org.apache.tez.runtime.task.TezTaskRunner$TaskRunnerCallable$1.run(TezTaskRunner.java:227)
at
org.apache.tez.runtime.task.TezTaskRunner$TaskRunnerCallable$1.run(TezTaskRunner.java:171)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:422)
at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1657)
at
org.apache.tez.runtime.task.TezTaskRunner$TaskRunnerCallable.callInternal(TezTaskRunner.java:171)
at
org.apache.tez.runtime.task.TezTaskRunner$TaskRunnerCallable.callInternal(TezTaskRunner.java:167)
at org.apache.tez.common.CallableWithNdc.call(CallableWithNdc.java:36)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
{noformat}
Lot of these messages are seen in logs. Even though it is harmless, this can
be very misleading when trying to debug the reason for some other exception.
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