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https://issues.apache.org/jira/browse/RATIS-2245?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Swaminathan Balachandran updated RATIS-2245:
--------------------------------------------
Summary: Ratis should wait for all apply transaction futures before taking
snapshot and group remove (was: Ratis should wait for all apply transaction
futures before group remove)
> Ratis should wait for all apply transaction futures before taking snapshot
> and group remove
> -------------------------------------------------------------------------------------------
>
> Key: RATIS-2245
> URL: https://issues.apache.org/jira/browse/RATIS-2245
> Project: Ratis
> Issue Type: Bug
> Reporter: Swaminathan Balachandran
> Assignee: Swaminathan Balachandran
> Priority: Critical
>
> On group removal the statemachine just waits for apply transactions that have
> been applied on a single iteration. If there are no more transactions added
> onto the state machine and all of the apply transaction future are still in
> progress. The state machine ends up not waiting for the updater thread and
> ends up calling the notifyGroupRemove function and deletes the raft group
> directory. So this could lead to some node not being able to apply some of
> the transactions still in flight in case of a restart.
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