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https://issues.apache.org/jira/browse/NIFI-892?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14710175#comment-14710175
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Aldrin Piri commented on NIFI-892:
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Verified the described badness with your steps outlined above.
Applied patch. Build, contrib, and tests all good. Performed same process
with a fresh state and patch applied and did not experience the same issues
across several iterations of killing/restarting.
Nice find and fix. +1
> If the "nifi.flowfile.repository.partitions" property is changed to a smaller
> value, FlowFIles not restored properly
> --------------------------------------------------------------------------------------------------------------------
>
> Key: NIFI-892
> URL: https://issues.apache.org/jira/browse/NIFI-892
> Project: Apache NiFi
> Issue Type: Bug
> Components: Core Framework
> Reporter: Mark Payne
> Assignee: Mark Payne
> Priority: Critical
> Fix For: 0.3.0
>
> Attachments:
> 0001-NIFI-892-If-nifi.flowfile.repository.partitions-prop.patch
>
>
> To recreate:
> 1. Start NiFi and run some data through it.
> 2. Kill NiFi (may not happen if the FlowFile repo was just checkpointed; the
> logs would indicate this)
> 3. Change the "nifi.flowfile.repository.partitions" property in
> conf/nifi.properties from 256 to 6
> 4. Restart NiFi
> At this point, any updates to the Write-Ahead Log that occurred on journal-7
> through journal-256 will be lost. This can cause some bizarre behavior, such
> as FlowFiles that have finished processor could be reprocessed. FlowFiles
> could also lose attributes (or could be re-processed without having all of
> their attributes present).
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