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https://issues.apache.org/jira/browse/RATIS-243?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andy Wu reassigned RATIS-243:
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Assignee: (was: Andy Wu)
> Add log purge function after taking snapshot
> --------------------------------------------
>
> Key: RATIS-243
> URL: https://issues.apache.org/jira/browse/RATIS-243
> Project: Ratis
> Issue Type: Improvement
> Components: server
> Reporter: Andy Wu
> Priority: Major
>
> After snapshotting the state machine, we can safely purge logs in the cache
> and disk.
> Based on the lastAppliedIndex, we can find out which segment the index lands,
> we can purge all previous segments if leader has no pending RPC on it. We
> will leave the segment where index lands alone, so we do not need to deal
> with partial file deletion logic.
> Also if we only have snapshots, make sure we can install snapshots to the
> followers.
>
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