Joe Skora created NIFI-3671:
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Summary: 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
Attachments: genff-npe.log
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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