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https://issues.apache.org/jira/browse/GEODE-1669?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15388584#comment-15388584
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Anilkumar Gingade commented on GEODE-1669:
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Changes checked in....
> Performance issue with Interest registration with impact on client side event
> processing.
> -----------------------------------------------------------------------------------------
>
> Key: GEODE-1669
> URL: https://issues.apache.org/jira/browse/GEODE-1669
> Project: Geode
> Issue Type: Bug
> Components: client queues
> Reporter: Anilkumar Gingade
>
> The client interests are managed in "FilterProfile" class on server side.
> These are maintained using the concurrent data structures CopyOnWriteHashSet
> and CopyOnWriteHashMap...
> When set of keys are registered from client, the keys are added to
> CopyOnWriteHashSet one by one (FilterProfile.registerClientInterestList());
> Where a new HashSet is created each time when an entry is added, which could
> impact performance based on the number of keys registered.
> This will have implication on the client side event processing; as the event
> processing gets blocked when a interest registration is in progress by other
> thread.
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