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https://issues.apache.org/jira/browse/NIFI-5109?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16465957#comment-16465957
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ASF GitHub Bot commented on NIFI-5109:
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Github user viazovskyi commented on the issue:
https://github.com/apache/nifi/pull/2657
@joewitt not sure what is another problem you're talking about, the
original [issue](https://issues.apache.org/jira/browse/NIFI-5109) is about
onTrigger method never goes further line 377 and stops calling performListing
after reelection of primary happened and same node became the primary again,
that's why I reset the flag and it makes sense to me, because the election
finished and further logic should only depend on another 2 fields
lastListedLatestEntryTimestampMillis, lastProcessedLatestEntryTimestampMillis
which are initialized from the state manager. But if performListing is not
calling anymore then no any updates for the state and these 2 fields keep the
same values. huh, hope it shows the issue in details :) @joewitt what is
another issue?
> AbstractListProcessor stop calling performListing after primary node
> reelection
> -------------------------------------------------------------------------------
>
> Key: NIFI-5109
> URL: https://issues.apache.org/jira/browse/NIFI-5109
> Project: Apache NiFi
> Issue Type: Bug
> Components: Core Framework
> Affects Versions: 1.6.0
> Reporter: Maksym Viazovskyi
> Priority: Major
> Attachments:
> 0001-NIFI-2109-Reset-justElectedPrimaryNode-flag-right-af.patch,
> PutAndListSFTP.xml, docker-compose.yml
>
> Original Estimate: 72h
> Remaining Estimate: 72h
>
> AbstractListProcessor stops performing listing of entities when after
> reelection the same node becomes Primary.
> STEPS TO REPRODUCE:
> 0. Make sure that you have docker 18.03.0-ce
> 1. Download attached [^docker-compose.yml] and [^PutAndListSFTP.xml]
> 2. Run *_docker-compose up -d_* in the folder where you downloaded
> docker-compose.yml. This command will run 3 containers - Zookeeper, NiFi
> 1.6.0 in Cluster Mode with 1 node, SFTPs server
> 3. After NiFi is up and running (check http://localhost:8080/nifi) upload
> PutAndListSFTP.xml template and place it on NiFi canvas. It has simple logic
> - generate flow file each 10 seconds and put it on SFTP, in parallel
> ListSFTP processor "listens" for the new files and pushes data about them to
> NiFi log with LogAttribute processor
> 4. Update PutSFTP and ListSFTP processors with password admin (to check SFTP
> container use following credentials SFTP://admin:admin@localhost:2222)
> 5. Run the flow
> 6. Check the NiFi log (*_docker logs -f --tail 100 nifi_*) - you should see
> attributes for the uploaded files on SFTP
> 7. Check that generated each 10 seconds files appear on SFTP /upload folder
> 8. Run following command to restart Zookeeper to put NiFi in reelection
> state: *_docker restart zookeeper_*
> 9. After reelection phase finished check that new files appears on SFTP, but
> NO new files info appears in NiFi log
>
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