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https://issues.apache.org/jira/browse/PHOENIX-79?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13914078#comment-13914078
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Hudson commented on PHOENIX-79:
-------------------------------
SUCCESS: Integrated in Apache Phoenix - Branch:master #81 (See
[https://builds.apache.org/job/Phoenix/81/])
PHOENIX-79 Change the way QueryServices is initialized to make initialization
more performant (SamarthJain) (jamestaylor: rev
31c322c606aa1b80a50f4cd654f5f069b02428f1)
*
phoenix-core/src/test/java/org/apache/phoenix/end2end/QueryDatabaseMetaDataTest.java
* phoenix-core/src/main/java/org/apache/phoenix/jdbc/PhoenixDriver.java
*
phoenix-core/src/main/java/org/apache/phoenix/jdbc/PhoenixDatabaseMetaData.java
*
phoenix-core/src/main/java/org/apache/phoenix/query/ConnectionQueryServicesImpl.java
> Change the way QueryServices is initialized and requested to make it more
> perfomant.
> ------------------------------------------------------------------------------------
>
> 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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