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https://issues.apache.org/jira/browse/NIFI-6285?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mark Payne updated NIFI-6285:
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Status: Patch Available (was: Open)
> Data fails to swap in if Load Balancing Strategy is changed while the data is
> swapped out
> -----------------------------------------------------------------------------------------
>
> Key: NIFI-6285
> URL: https://issues.apache.org/jira/browse/NIFI-6285
> Project: Apache NiFi
> Issue Type: Bug
> Components: Core Framework
> Reporter: Mark Payne
> Assignee: Mark Payne
> Priority: Blocker
> Fix For: 1.10.0
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> If data is swapped out in a connection, and the connection's Load Balance
> Strategy is then changed, the data fails to swap back in. I see the following
> log messages:
> 2019-05-09 15:59:54,633 WARN [main] o.a.n.controller.FileSystemSwapManager
> Encountered unknown Swap File
> ./flowfile_repository/swap/1557431864223-9e237e10-016a-1000-06cb-e202396d758c-02cf72f0-1c0b-4771-8ef7-a708ed1d9de5.rebalance.swap;
> will ignore this Swap File. This file should be cleaned up manually
> 2019-05-09 15:59:54,633 WARN [main] o.a.n.controller.FileSystemSwapManager
> Encountered unknown Swap File
> ./flowfile_repository/swap/1557431862791-9e237e10-016a-1000-06cb-e202396d758c-1c0c0a53-97d3-4703-b8de-6c7d6295e23a.rebalance.swap;
> will ignore this Swap File. This file should be cleaned up manually
> 2019-05-09 15:59:54,633 WARN [main] o.a.n.controller.FileSystemSwapManager
> Encountered unknown Swap File
> ./flowfile_repository/swap/1557431866657-9e237e10-016a-1000-06cb-e202396d758c-a6573e52-1758-475f-a0a9-eee211bb7b26.rebalance.swap;
> will ignore this Swap File. This file should be cleaned up manually
>
> To recreate, create a cluster and queue up around 50,000 FlowFiles on each
> node. Change connection's Load Balance Strategy from "Do Not Load Balance" to
> "Round Robin." This results in the data that is swapped out not getting
> swapped back in.
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