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Flume, mail # dev - Review Request: FLUME-1660 Close "idle" hdfs handles


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Re: Review Request: FLUME-1660 Close "idle" hdfs handles
Juhani Connolly 2012-11-16, 08:10


> On Nov. 16, 2012, 7:25 a.m., Mike Percy wrote:
> > Hey Juhani, nice work! Good catch, I agree that the race will be very rare and it's handled fine.
> >
> > Please attach the patch to the JIRA.
>
> Mike Percy wrote:
>     Oops, one thing! I think the idleClosed flag needs to be declared as volatile because the Callable and the process() method will be executed in different threads.

I'll do that
- Juhani
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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/7659/#review13511
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On Nov. 16, 2012, 2 a.m., Juhani Connolly wrote:
>
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/7659/
> -----------------------------------------------------------
>
> (Updated Nov. 16, 2012, 2 a.m.)
>
>
> Review request for Flume and Mike Percy.
>
>
> Description
> -------
>
> Added lastWrite to BucketWriter to verify when it was last updated
>
> Added a thread to HDFSEventSink which verifies the last update of each active bucketWriter and closes them after the configurable timeout hdfs.closeIdleTimeout has passed.
>
>
> This addresses bug FLUME-1660.
>     https://issues.apache.org/jira/browse/FLUME-1660
>
>
> Diffs
> -----
>
>   flume-ng-doc/sphinx/FlumeUserGuide.rst c1303e0
>   flume-ng-sinks/flume-hdfs-sink/src/main/java/org/apache/flume/sink/hdfs/BucketWriter.java 9f2c763
>   flume-ng-sinks/flume-hdfs-sink/src/main/java/org/apache/flume/sink/hdfs/HDFSEventSink.java e369604
>   flume-ng-sinks/flume-hdfs-sink/src/test/java/org/apache/flume/sink/hdfs/TestBucketWriter.java 6a8072e
>   flume-ng-sinks/flume-hdfs-sink/src/test/java/org/apache/flume/sink/hdfs/TestHDFSEventSink.java fee4c8b
>
> Diff: https://reviews.apache.org/r/7659/diff/
>
>
> Testing
> -------
>
> Local machine testing was performed and the correct closing of files was confirmed, as well as the correct behavior of the configuration setting including disabling the feature(by using the default value for hdfs.closeIdleTimeout of 0)
>
>
> There is one unrelated test failure which I'm not sure of(if anyone knows what's causing this, please let me know)
>
> Failed tests:   testInOut(org.apache.flume.test.agent.TestFileChannel): Expected FILE_ROLL sink's dir to have only 1 child, but found 0 children. expected:<1> but was:<0>
>
> All other tests pass.
>
>
> Thanks,
>
> Juhani Connolly
>
>