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Posted to issues@nifi.apache.org by "WojciechWitos (Jira)" <ji...@apache.org> on 2026/08/21 09:11:00 UTC
[jira] [Updated] (NIFI-16239) Wait 2.11 Issue
[ https://issues.apache.org/jira/browse/NIFI-16239?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
WojciechWitos updated NIFI-16239:
---------------------------------
Description:
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).
was:
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).
> Wait 2.11 Issue
> ---------------
>
> 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
>
> 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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