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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (KYLIN-3556) Interned string should not be used as lock object
Date Mon, 29 Oct 2018 09:43:00 GMT

    [ https://issues.apache.org/jira/browse/KYLIN-3556?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16666920#comment-16666920
] 

ASF GitHub Bot commented on KYLIN-3556:
---------------------------------------

asfgit commented on issue #319: KYLIN-3556, replace String.intern to avoid unexpected locking
collisions
URL: https://github.com/apache/kylin/pull/319#issuecomment-433846327
 
 
   Can one of the admins verify this patch?

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> Interned string should not be used as lock object
> -------------------------------------------------
>
>                 Key: KYLIN-3556
>                 URL: https://issues.apache.org/jira/browse/KYLIN-3556
>             Project: Kylin
>          Issue Type: Bug
>          Components: Metadata
>    Affects Versions: v2.5.0
>            Reporter: Ted Yu
>            Assignee:  Kaige Liu
>            Priority: Minor
>             Fix For: v2.5.1
>
>
> In JDBCResourceDAO :
> {code}
>             public void execute(Connection connection) throws SQLException {
>                 synchronized (resPath.intern()) {
> {code}
> Locking on an interned string can cause unexpected locking collisions with other part
of code.



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