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https://issues.apache.org/jira/browse/NIFI-2376?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15390821#comment-15390821
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ASF GitHub Bot commented on NIFI-2376:
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GitHub user markap14 opened a pull request:
https://github.com/apache/nifi/pull/713
NIFI-2376: Ensure that we don't decrement claimant count more than once…
… when append() throws an Exception
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/markap14/nifi NIFI-2376
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/nifi/pull/713.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 #713
----
commit 456bac5c1598671d1494f50f9fb12414c9b3a8a1
Author: Mark Payne <[email protected]>
Date: 2016-07-23T19:05:20Z
NIFI-2376: Ensure that we don't decrement claimant count more than once
when append() throws an Exception
----
> Content could be prematurely archived/removed if a call to append() throws an
> Exception
> ---------------------------------------------------------------------------------------
>
> Key: NIFI-2376
> URL: https://issues.apache.org/jira/browse/NIFI-2376
> Project: Apache NiFi
> Issue Type: Bug
> Components: Core Framework
> Reporter: Mark Payne
> Assignee: Mark Payne
> Priority: Blocker
> Fix For: 1.0.0, 0.8.0
>
>
> If ProcessSession.append() is called multiple times for a FlowFile and in one
> of the calls other than the first call, an Exception is thrown, the claimant
> count is decremented more than once. This can result in the content being
> deleted or archived too soon. Consequently, this could also result in a
> NullPointerException being thrown when attempting to write to the FlowFile.
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