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https://issues.apache.org/jira/browse/NIFI-16239?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18106560#comment-18106560
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Pierre Villard commented on NIFI-16239:
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[~wojciechwitos] - my feeling is that we should have a release soon. New
version of the NiFi Maven NAR plugin will likely be released today, I think we
will have a new release of NiFi API next week and I assume we would have 2.12
shortly after. This is just my feeling though, I didn't see any discussion to
support this.
> Processor: Wait 2.11 Issues
> ---------------------------
>
> Key: NIFI-16239
> URL: https://issues.apache.org/jira/browse/NIFI-16239
> Project: Apache NiFi
> Issue Type: Bug
> Components: NiFi Stateless
> Affects Versions: 2.11.0
> Environment: Cluster x3 nodes
> Reporter: WojciechWitos
> Priority: Major
> Fix For: 2.12.0
>
>
> Hi,
> We've noticed errors on our WAIT processors - they generate failures and
> warns during the processing:
> Wait[id=6f8aad37-d5ea-36fc-a948-c46a7193f93b] Processing failed:
> org.apache.nifi.processor.exception.ProcessException: Concurrent modification
> detected while updating signal ffed1062-6c4e-443d-9c6d-094f61d6eea8 Caused
> by: java.util.ConcurrentModificationException: Failed to complete signal
> [ffed1062-6c4e-443d-9c6d-094f61d6eea8]: signal was concurrently modified
> (expected revision [B@5098eddf, found [B@1614785).
> Wait[id=6f8aad37-d5ea-36fc-a948-c46a7193f93b] Concurrent modification
> detected for signal [ffed1062-6c4e-443d-9c6d-094f61d6eea8], rolling back
> session to retry: Failed to complete signal
> [ffed1062-6c4e-443d-9c6d-094f61d6eea8]: signal was concurrently modified
> (expected revision [B@99d2b8e, found [B@490353ca).
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