[
https://issues.apache.org/jira/browse/FLUME-1236?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13285367#comment-13285367
]
Hari Shreedharan commented on FLUME-1236:
-----------------------------------------
This gets thrown continuously when this situation is encountered:
2012-05-29 20:45:56,064 ERROR source.PollableSourceRunner: Unhandled exception,
logging and sleeping for 5000ms
java.lang.IllegalStateException: Channel closed
at
com.google.common.base.Preconditions.checkState(Preconditions.java:145)
at
org.apache.flume.channel.file.FileChannel.createTransaction(FileChannel.java:237)
at
org.apache.flume.channel.BasicChannelSemantics.getTransaction(BasicChannelSemantics.java:118)
at
org.apache.flume.channel.ChannelProcessor.processEvent(ChannelProcessor.java:248)
at
org.apache.flume.source.SequenceGeneratorSource.process(SequenceGeneratorSource.java:48)
at
org.apache.flume.source.PollableSourceRunner$PollingRunner.run(PollableSourceRunner.java:137)
at java.lang.Thread.run(Thread.java:680)
2012-05-29 20:46:01,063 ERROR flume.SinkRunner: Unhandled exception, logging
and sleeping for 5000ms
java.lang.IllegalStateException: Channel closed
at
com.google.common.base.Preconditions.checkState(Preconditions.java:145)
at
org.apache.flume.channel.file.FileChannel.createTransaction(FileChannel.java:237)
at
org.apache.flume.channel.BasicChannelSemantics.getTransaction(BasicChannelSemantics.java:118)
at org.apache.flume.sink.LoggerSink.process(LoggerSink.java:61)
at
org.apache.flume.sink.DefaultSinkProcessor.process(DefaultSinkProcessor.java:68)
at org.apache.flume.SinkRunner$PollingRunner.run(SinkRunner.java:147)
at java.lang.Thread.run(Thread.java:680)
2012-05-29 20:46:01,065 ERROR source.PollableSourceRunner: Unhandled exception,
logging and sleeping for 5000ms
java.lang.IllegalStateException: Channel closed
at
com.google.common.base.Preconditions.checkState(Preconditions.java:145)
at
org.apache.flume.channel.file.FileChannel.createTransaction(FileChannel.java:237)
at
org.apache.flume.channel.BasicChannelSemantics.getTransaction(BasicChannelSemantics.java:118)
at
org.apache.flume.channel.ChannelProcessor.processEvent(ChannelProcessor.java:248)
at
org.apache.flume.source.SequenceGeneratorSource.process(SequenceGeneratorSource.java:48)
at
org.apache.flume.source.PollableSourceRunner$PollingRunner.run(PollableSourceRunner.java:137)
at java.lang.Thread.run(Thread.java:680)
2012-05-29 20:46:06,064 ERROR flume.SinkRunner: Unhandled exception, logging
and sleeping for 5000ms
java.lang.IllegalStateException: Channel closed
at
com.google.common.base.Preconditions.checkState(Preconditions.java:145)
at
org.apache.flume.channel.file.FileChannel.createTransaction(FileChannel.java:237)
at
org.apache.flume.channel.BasicChannelSemantics.getTransaction(BasicChannelSemantics.java:118)
at org.apache.flume.sink.LoggerSink.process(LoggerSink.java:61)
at
org.apache.flume.sink.DefaultSinkProcessor.process(DefaultSinkProcessor.java:68)
at org.apache.flume.SinkRunner$PollingRunner.run(SinkRunner.java:147)
at java.lang.Thread.run(Thread.java:680)
2012-05-29 20:46:06,066 ERROR source.PollableSourceRunner: Unhandled exception,
logging and sleeping for 5000ms
java.lang.IllegalStateException: Channel closed
at
com.google.common.base.Preconditions.checkState(Preconditions.java:145)
at
org.apache.flume.channel.file.FileChannel.createTransaction(FileChannel.java:237)
at
org.apache.flume.channel.BasicChannelSemantics.getTransaction(BasicChannelSemantics.java:118)
at
org.apache.flume.channel.ChannelProcessor.processEvent(ChannelProcessor.java:248)
at
org.apache.flume.source.SequenceGeneratorSource.process(SequenceGeneratorSource.java:48)
at
org.apache.flume.source.PollableSourceRunner$PollingRunner.run(PollableSourceRunner.java:137)
at java.lang.Thread.run(Thread.java:680)
> File channel has a race condition between start and create transaction method
> -----------------------------------------------------------------------------
>
> Key: FLUME-1236
> URL: https://issues.apache.org/jira/browse/FLUME-1236
> Project: Flume
> Issue Type: Bug
> Components: Channel
> Affects Versions: v1.2.0
> Reporter: Hari Shreedharan
> Assignee: Hari Shreedharan
> Fix For: v1.2.0
>
>
> Lifecycle supervisor starts all components asynchronously. So the channel's
> replay() would not have returned before the createTxn() is called, since the
> sink could have started too. This causes a preconditions check failure, and
> logs errors.
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