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Posted to issues@kylin.apache.org by "jiatao.tao (JIRA)" <ji...@apache.org> on 2018/07/14 01:48:00 UTC
[jira] [Commented] (KYLIN-3417) Consider replacing
ReentrantReadWriteLock with StampedLock
[ https://issues.apache.org/jira/browse/KYLIN-3417?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16543935#comment-16543935 ]
jiatao.tao commented on KYLIN-3417:
-----------------------------------
Thanks Ted, I will take a glance! Nice to see all these interesting usage.
> Consider replacing ReentrantReadWriteLock with StampedLock
> ----------------------------------------------------------
>
> Key: KYLIN-3417
> URL: https://issues.apache.org/jira/browse/KYLIN-3417
> Project: Kylin
> Issue Type: Improvement
> Reporter: Ted Yu
> Priority: Major
> Fix For: v2.5.0
>
>
> ReentrantReadWriteLock's are only the right solution when there is long hold time due to expensive I/O.
> It is expensive for readers.
> We should see if the lighter {{StampedLock}} can be used instead.
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