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https://issues.apache.org/jira/browse/AURORA-930?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kevin Sweeney updated AURORA-930:
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Description:
We observed very long GC pauses in our production cluster we believe are caused
by the extra heap pressure caused by SnapshotDeduplicatorImpl's extra deep copy
of a Snapshot object.
Also, EntrySerializer fully buffers the full binary-encoded thrift Snapshot
before writing it to the replicated log - it can avoid memory pressure by
streaming instead.
was:TBD by [~kevints]
> GC performance issues with snapshot deduplication on large clusters
> -------------------------------------------------------------------
>
> Key: AURORA-930
> URL: https://issues.apache.org/jira/browse/AURORA-930
> Project: Aurora
> Issue Type: Story
> Components: Scheduler
> Reporter: Chris Lambert
> Assignee: Kevin Sweeney
>
> We observed very long GC pauses in our production cluster we believe are
> caused by the extra heap pressure caused by SnapshotDeduplicatorImpl's extra
> deep copy of a Snapshot object.
> Also, EntrySerializer fully buffers the full binary-encoded thrift Snapshot
> before writing it to the replicated log - it can avoid memory pressure by
> streaming instead.
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