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https://issues.apache.org/jira/browse/PHOENIX-79?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13913977#comment-13913977
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Samarth commented on PHOENIX-79:
--------------------------------
Fixed the lazy init DCL issue. Changed exception throwing slightly as James
suggested in ConnectionQueryServicesImpl#getTable
> Change the way QueryServices is initialized to make initialization more
> performant
> ----------------------------------------------------------------------------------
>
> Key: PHOENIX-79
> URL: https://issues.apache.org/jira/browse/PHOENIX-79
> Project: Phoenix
> Issue Type: Improvement
> Affects Versions: 3.0.0
> Reporter: Samarth
> Assignee: Samarth
> Attachments: dcl_exception_columnsize.diff, patch-79-80-v2.diff
>
>
> PhoenixDriver#getQueryServices() currently has a synchronized for guarding
> the lazy initialization of queryServices. Changing it to
> double-checked-locking pattern should make it more perfomant when connections
> are requested concurrently.
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