Yuanhao Zhu created NIFI-14599:
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Summary: Parameter provider invalid revision issue
Key: NIFI-14599
URL: https://issues.apache.org/jira/browse/NIFI-14599
Project: Apache NiFi
Issue Type: Bug
Affects Versions: 2.4.0, 2.3.0, 2.2.0, 2.1.0
Reporter: Yuanhao Zhu
We recently upgrade to nifi 2.4.0 from 1.x and have noticed something weird
about the parameter provider in 2.x. From time to time, for some reason, the
parameter provider will complain about invalid revision given when fetching for
parameters with nifi-cli. Specifically we are using
AzureKeyvaultParameterProvider. And once this happens, the only way to get rid
of it is the re-creation of the parameter provider.
See the screenshot
!https://community.cloudera.com/t5/image/serverpage/image-id/45570i701517E88FD12C48/image-size/large/is-moderation-mode/true?v=v2&px=999!
And it looks like the revision manager was messed up that every time the new
revision is always one version below, we are running nifi in a standalone mode
and consecutively triggering of the parameter fetch will constantly get the
invalid revision(each time the revision is up by 1) until the parameter
provider is recreated, even restarting nifi won't help. I'm also quite sure
there is only one person sending request to fetch for parameter and attempt to
change the parameter provider at the same time so no concurrent operation.
And once this problem happens, fetching parameters from UI also does not work,
it would just fail silently and the value of the secrets remains unchanged.
Also FYI, this never happened in 1.x
Still have no idea how to reproduce it though, but will keep trying and log the
activities in this ticket
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