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https://issues.apache.org/jira/browse/NIFI-3671?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16023387#comment-16023387
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ASF subversion and git services commented on NIFI-3671:
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Commit b12cf8a6d28c2a025831fff9363adf2b13199071 in nifi's branch
refs/heads/master from [~markap14]
[ https://git-wip-us.apache.org/repos/asf?p=nifi.git;h=b12cf8a ]
NIFI-3671: This closes #1852. Ensure that we use the existing ResourceClaim (if
it exists) when swapping data in, instead of creating a new one. Otherwise, if
the ResourceClaim is still writable, then we may archive the data and then
write to it, which can cause a NullPointerException in FileSystemRepository
Signed-off-by: joewitt <[email protected]>
> GenerateFlowFile throws NPE in FileSystemRepository
> ---------------------------------------------------
>
> Key: NIFI-3671
> URL: https://issues.apache.org/jira/browse/NIFI-3671
> Project: Apache NiFi
> Issue Type: Bug
> Components: Core Framework
> Affects Versions: 1.2.0
> Environment: Ubuntu Linux 14.04.5 LTS, x86, NiFi 1.2.0-SNAPSHOT, Java
> 1.8.0_102
> Reporter: Joe Skora
> Assignee: Mark Payne
> Fix For: 1.3.0
>
> Attachments: flow.xml, genff-npe.log, priority.groovy
>
>
> While volume testing, {{GenerateFlowFile}} is randomly throwing
> {{NullPointerException}} during startup. The NPE occurs in
> {{FileSystemRepository.write()}} called from
> {{BufferedOutputStream.flushBuffer()}} and results in an Administrative Yield.
> When it happens, the bulletin shows up on the processors immediately after
> starting them. Starting them a second time will often succeed, but sometimes
> it takes a multiple retries. When the {{GenerateFlowFile}} processors are
> started for these tests, the graph is typically empty.
> Log entries for an example Thread are attached. This looks similar to
> [NIFI-2551|https://issues.apache.org/jira/browse/NIFI-2551], but that is
> marked as being fixed in 1.0.0.
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