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Posted to dev@phoenix.apache.org by "Hudson (JIRA)" <ji...@apache.org> on 2014/02/27 06:06:19 UTC
[jira] [Commented] (PHOENIX-79) Change the way QueryServices is
initialized and requested to make it more perfomant.
[ https://issues.apache.org/jira/browse/PHOENIX-79?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13914078#comment-13914078 ]
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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