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https://issues.apache.org/jira/browse/NIFI-2551?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15417468#comment-15417468
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ASF GitHub Bot commented on NIFI-2551:
--------------------------------------
GitHub user mosermw opened a pull request:
https://github.com/apache/nifi/pull/838
NIFI-2551 fix FileSystemRepository claim count race condition, which …
…could cause NPE
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/mosermw/nifi NIFI-2551
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/nifi/pull/838.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #838
----
commit fb1e26e7a09710e2f73eec6a98595252d13b8193
Author: Mike Moser <[email protected]>
Date: 2016-08-11T15:45:06Z
NIFI-2551 fix FileSystemRepository claim count race condition, which could
cause NPE
----
> Rare condition causes FileSystemRepository NPE
> ----------------------------------------------
>
> Key: NIFI-2551
> URL: https://issues.apache.org/jira/browse/NIFI-2551
> Project: Apache NiFi
> Issue Type: Bug
> Components: Core Framework
> Affects Versions: 1.0.0, 0.7.0
> Reporter: Michael Moser
> Assignee: Michael Moser
> Priority: Blocker
>
> In rare unpredictable cases when NiFi is processing a heavy load, we see
> FileSystemRepository throw a NullPointerException
> {noformat}
> java.lang.NullPointerException
> at o.a.n.c.r.FileSystemRepository$2.write(FileSystemRepository.java:919)
> [nifi-framework-core-0.7.0.jar]
> at
> o.a.n.c.r.io.DisableOnCloseOutputStream.write(DisableOnCloseOutputStream.java:49)
> ....
> Suppressed: java.lang.NullPointerException
> at
> o.a.n.c.r.FileSystemRepository$2.flush(FileSystemRepository.java:935)
> [nifi-framework-core-0.7.0.jar]
> at
> o.a.n.c.r.io.DisableOnCloseOutputStream.close(DisableOnCloseOutputStream.java:68)
> {noformat}
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