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https://issues.apache.org/jira/browse/IGNITE-2580?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vladimir Ozerov updated IGNITE-2580:
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Fix Version/s: (was: 1.8)
2.0
> Investigate HashMap.Node[] allocations from
> GridDhtTxPrepareFuture.readyLocks(Iterable)
> ---------------------------------------------------------------------------------------
>
> Key: IGNITE-2580
> URL: https://issues.apache.org/jira/browse/IGNITE-2580
> Project: Ignite
> Issue Type: Task
> Components: cache
> Affects Versions: 1.5.0.final
> Reporter: Vladimir Ozerov
> Labels: performance
> Fix For: 2.0
>
>
> *Problem*
> GridDhtTxPrepareFuture is initialized with empty HashSet by default. When
> single lock is ready HashSet.add() is called causing immediate expansion of
> underlying HashMap table.
> *Solution*
> Do we really need fully-fledged hash set immediately? Probably we can
> optimize for single-lock case so that HashSet is not needed at all.
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