Eli created FLUME-3117:
--------------------------
Summary: Application can be dead loop when call System.exit() in
methodconfigure
Key: FLUME-3117
URL: https://issues.apache.org/jira/browse/FLUME-3117
Project: Flume
Issue Type: Bug
Components: Sinks+Sources
Affects Versions: 1.7.0
Reporter: Eli
When call System.exit(-1) in method configure of a source , application will
run into dead loop and persistently print "Waiting for file watcher to
terminate".
{code:java}
"agent-shutdown-hook" #11 prio=5 os_prio=0 tid=0x00007f1d68018800 nid=0x7f6f
waiting on condition [0x00007f1d9b163000]
java.lang.Thread.State: TIMED_WAITING (parking)
at sun.misc.Unsafe.park(Native Method)
- parking to wait for <0x00000000fb816f30> (a
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
at
java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
at
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
at
java.util.concurrent.ThreadPoolExecutor.awaitTermination(ThreadPoolExecutor.java:1465)
at
java.util.concurrent.Executors$DelegatedExecutorService.awaitTermination(Executors.java:675)
at
org.apache.flume.node.PollingPropertiesFileConfigurationProvider.stop(PollingPropertiesFileConfigurationProvider.java:88)
at
org.apache.flume.lifecycle.LifecycleSupervisor.stop(LifecycleSupervisor.java:104)
- locked <0x00000000fb5e1fa8> (a
org.apache.flume.lifecycle.LifecycleSupervisor)
at org.apache.flume.node.Application.stop(Application.java:92)
- locked <0x00000000fb5d2418> (a org.apache.flume.node.Application)
at org.apache.flume.node.Application$1.run(Application.java:343)
Locked ownable synchronizers:
- None
"conf-file-poller-0" #13 prio=5 os_prio=0 tid=0x00007f1d64009800 nid=0x7f6d in
Object.wait() [0x00007f1d9b364000]
java.lang.Thread.State: WAITING (on object monitor)
at java.lang.Object.wait(Native Method)
- waiting on <0x00000000fb6f9230> (a
org.apache.flume.node.Application$1)
at java.lang.Thread.join(Thread.java:1249)
- locked <0x00000000fb6f9230> (a org.apache.flume.node.Application$1)
at java.lang.Thread.join(Thread.java:1323)
at
java.lang.ApplicationShutdownHooks.runHooks(ApplicationShutdownHooks.java:106)
at
java.lang.ApplicationShutdownHooks$1.run(ApplicationShutdownHooks.java:46)
at java.lang.Shutdown.runHooks(Shutdown.java:123)
at java.lang.Shutdown.sequence(Shutdown.java:167)
at java.lang.Shutdown.exit(Shutdown.java:212)
- locked <0x00000000fb3b86a8> (a java.lang.Class for java.lang.Shutdown)
at java.lang.Runtime.exit(Runtime.java:109)
at java.lang.System.exit(System.java:971)
at study.flume_exit.ExitSource.configure(ExitSource.java:28)
at org.apache.flume.conf.Configurables.configure(Configurables.java:41)
at
org.apache.flume.node.AbstractConfigurationProvider.loadSources(AbstractConfigurationProvider.java:326)
at
org.apache.flume.node.AbstractConfigurationProvider.getConfiguration(AbstractConfigurationProvider.java:101)
at
org.apache.flume.node.PollingPropertiesFileConfigurationProvider$FileWatcherRunnable.run(PollingPropertiesFileConfigurationProvider.java:141)
at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Locked ownable synchronizers:
- <0x00000000fb829588> (a
java.util.concurrent.ThreadPoolExecutor$Worker)
{code}
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