[
https://issues.apache.org/jira/browse/KYLIN-4951?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17326545#comment-17326545
]
ASF GitHub Bot commented on KYLIN-4951:
---------------------------------------
hit-lacus commented on pull request #1620:
URL: https://github.com/apache/kylin/pull/1620#issuecomment-824073126
I search and find this :
https://docs.oracle.com/javase/8/docs/technotes/tools/unix/java.html.
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:
[email protected]
> Change default JVM settings from MaxPermSize to MaxMetaspaceSize
> ----------------------------------------------------------------
>
> Key: KYLIN-4951
> URL: https://issues.apache.org/jira/browse/KYLIN-4951
> Project: Kylin
> Issue Type: Improvement
> Reporter: Rofi Yao
> Assignee: Rofi Yao
> Priority: Major
> Fix For: Backlog
>
> Attachments: KYLIN-4951.patch
>
> Original Estimate: 24h
> Remaining Estimate: 24h
>
> JDK1.8+ is recommended in the Community document.
> This issue is to switch JVM settings default from MaxPermSize to
> MaxMetaspaceSize.
>
> *Problem discovery*
> If you use jdk1.8 and setting MaxPermSize, the query will slow down when
> non-heap memory is not recovered timely. The threshold value is about 1GB.
> The average query time may change from 500ms to 1000ms, or more.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
