Github user ijokarumawak commented on the issue:
https://github.com/apache/nifi/pull/563
@JPercivall @olegz Thanks for reviewing this! I've rebased the branch, and
addressed the feedback. However, while I was testing this again, I noticed that
if it's running on a clustered NiFi environment, every node gets and clears
offsets from Kafka. While it's working, I think these method should be executed
on only the primary node, or if it's a standalone instance since offsets
information is a global state among consumers.
With `@OnPrimaryNodeStateChange` annotation, it's possible to know if it's
a cluster and a primary node. But it's only called if a node get elected as a
primary, or a node was primary but revoked. Since other node is not notified, I
couldn't distinguish standalone or primary from a processor..
So, I left it as it is for now. Do you know If there's a way to know if
NiFi is clustered from a processor?
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