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Flume, mail # user - FileChannel error on Flume 1.3.1


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Re: FileChannel error on Flume 1.3.1
Brock Noland 2013-02-03, 17:40
Not sure how that error message occurred, it would mean that a zero length
checkpoint file exists with no .meta file.

https://github.com/apache/flume/blob/trunk/flume-ng-channels/flume-file-channel/src/main/java/org/apache/flume/channel/file/EventQueueBackingStoreFactory.java#L70
On Sat, Feb 2, 2013 at 6:05 PM, Brock Noland <[EMAIL PROTECTED]> wrote:

>  Yes that err looks odd so I'd like have a look if possible.
>
> --
> Brock Noland
> Sent with Sparrow <http://www.sparrowmailapp.com/?sig>
>
> On Saturday, February 2, 2013 at 4:50 PM, Rahul Ravindran wrote:
>
> Hi,
>   No, I did not delete the checkpoint previously. That is what I did to
> fix the problem.
>
> Searching through the archives, it looks like
> http://mail-archives.apache.org/mod_mbox/flume-user/201211.mbox/%[EMAIL PROTECTED]%3Eneeds the checkpoint to be deleted. Will do that in future. Do you still
> need the logs?
> ~Rahul.
>
>   ------------------------------
> *From:* Brock Noland <[EMAIL PROTECTED]>
> *To:* "[EMAIL PROTECTED]" <[EMAIL PROTECTED]>; Rahul Ravindran <
> [EMAIL PROTECTED]>
> *Sent:* Saturday, February 2, 2013 2:32 PM
> *Subject:* Re: FileChannel error on Flume 1.3.1
>
> Hi,
>
> That isn't a good error message. Could you share your entire log file?
> Post it on a JIRA or pastebin.
>
> Did you delete the checkpoint before starting the channel after changing
> capacity? Capacity is fixed for the file channel as such the checkpoint
> must be deleted to change the capacity.
>
> Brock
>
> On Saturday, February 2, 2013, Rahul Ravindran wrote:
>
> Hi,
>   I increased the capacity and the max file size parameters of the
> filechannel in our config and began seeing the below exception. I continue
> seeing the below on restarting the channel. I fixed this by removing the
> files in the checkpoint and data folders.
>
> 02 Feb 2013 21:45:51,113 WARN
>  [SinkRunner-PollingRunner-LoadBalancingSinkProcessor]
> (org.apache.flume.sink.LoadBalancingSinkProcessor.process:158)  - Sink
> failed to consume event. Attempting next sink if available.
> java.lang.IllegalStateException: Channel closed [channel=ch2]. Due to
> java.io.EOFException: null
>  at
> org.apache.flume.channel.file.FileChannel.createTransaction(FileChannel.java:353)
>  at
> org.apache.flume.channel.BasicChannelSemantics.getTransaction(BasicChannelSemantics.java:122)
>  at org.apache.flume.sink.AvroSink.process(AvroSink.java:277)
>  at
> org.apache.flume.sink.LoadBalancingSinkProcessor.process(LoadBalancingSinkProcessor.java:154)
>  at org.apache.flume.SinkRunner$PollingRunner.run(SinkRunner.java:147)
>  at java.lang.Thread.run(Thread.java:662)
> Caused by: java.io.EOFException
>  at java.io.RandomAccessFile.readInt(RandomAccessFile.java:759)
>  at java.io.RandomAccessFile.readLong(RandomAccessFile.java:792)
>  at
> org.apache.flume.channel.file.EventQueueBackingStoreFactory.get(EventQueueBackingStoreFactory.java:71)
> at
> org.apache.flume.channel.file.EventQueueBackingStoreFactory.get(EventQueueBackingStoreFactory.java:36)
>  at org.apache.flume.channel.file.Log.replay(Log.java:365)
>  at org.apache.flume.channel.file.FileChannel.start(FileChannel.java:303)
>  at
> org.apache.flume.lifecycle.LifecycleSupervisor$MonitorRunnable.run(LifecycleSupervisor.java:236)
>  at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:439)
>  at
> java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:317)
>  at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:150)
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:98)
>  at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodic(ScheduledThreadPoolExecutor.java:180)
>  at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:204)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
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