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Posted to issues@geode.apache.org by "nabarun (JIRA)" <ji...@apache.org> on 2017/06/30 18:44:00 UTC

[jira] [Resolved] (GEODE-3148) Replace ObjectOpenCustomHashSet with ConcurrentSkipListSet

     [ https://issues.apache.org/jira/browse/GEODE-3148?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

nabarun resolved GEODE-3148.
----------------------------
    Resolution: Won't Fix

This problem cannot be solved using a ConcurrentSkipListSets

> Replace ObjectOpenCustomHashSet with ConcurrentSkipListSet
> ----------------------------------------------------------
>
>                 Key: GEODE-3148
>                 URL: https://issues.apache.org/jira/browse/GEODE-3148
>             Project: Geode
>          Issue Type: Bug
>          Components: querying
>            Reporter: nabarun
>
> After profiling the performance of queries such as SELECT DISTINCT e.id, e.value FROM /region e, we could see that the bottleneck was caused by rehash / resizing operation of the ObjectOpenCustomHashSet while adding new entries to the data structure.
> We experimented with ConcurrentSkipListSet and saw that performance was improved. ConcurrentSkipListSet should be incorporated into Apache Geode if it passes all the testing.



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