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Posted to issues@ignite.apache.org by "Maxim Muzafarov (Jira)" <ji...@apache.org> on 2019/10/03 10:07:01 UTC
[jira] [Commented] (IGNITE-10497) jvm-pause-detector-worker should
be JVM singleton
[ https://issues.apache.org/jira/browse/IGNITE-10497?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16943473#comment-16943473 ]
Maxim Muzafarov commented on IGNITE-10497:
------------------------------------------
[~cyberdemon], [~avinogradov]
Folks, any updates on this issue? Should it be included to 2.8 release?
> jvm-pause-detector-worker should be JVM singleton
> -------------------------------------------------
>
> Key: IGNITE-10497
> URL: https://issues.apache.org/jira/browse/IGNITE-10497
> Project: Ignite
> Issue Type: Task
> Reporter: Anton Vinogradov
> Assignee: Dmitriy Sorokin
> Priority: Major
> Labels: newbie
> Fix For: 2.8
>
>
> Debugging tests I see the following:
> {noformat}
> [2018-11-30 20:36:46,284][WARN ][jvm-pause-detector-worker][CacheConsistencyCheckOnReadTest9] Possible too long JVM pause: 5861 milliseconds.
> [2018-11-30 20:36:46,287][WARN ][jvm-pause-detector-worker][CacheConsistencyCheckOnReadTest4] Possible too long JVM pause: 5863 milliseconds.
> [2018-11-30 20:36:46,288][WARN ][jvm-pause-detector-worker][CacheConsistencyCheckOnReadTest3] Possible too long JVM pause: 5864 milliseconds.
> [2018-11-30 20:36:46,288][WARN ][jvm-pause-detector-worker][CacheConsistencyCheckOnReadTest2] Possible too long JVM pause: 5864 milliseconds.
> [2018-11-30 20:36:46,289][WARN ][jvm-pause-detector-worker][CacheConsistencyCheckOnReadTest1] Possible too long JVM pause: 5864 milliseconds.
> [2018-11-30 20:36:46,290][WARN ][jvm-pause-detector-worker][CacheConsistencyCheckOnReadTest0] Possible too long JVM pause: 5865 milliseconds.
> [2018-11-30 20:36:46,286][WARN ][jvm-pause-detector-worker][CacheConsistencyCheckOnReadTest6] Possible too long JVM pause: 5863 milliseconds.
> [2018-11-30 20:36:46,286][WARN ][jvm-pause-detector-worker][CacheConsistencyCheckOnReadTest8] Possible too long JVM pause: 5863 milliseconds.
> [2018-11-30 20:36:46,286][WARN ][jvm-pause-detector-worker][CacheConsistencyCheckOnReadTest5] Possible too long JVM pause: 5862 milliseconds.
> {noformat}
> Is there any reason to have more that one thread at one JVM?
> Let's make jvm-pause-detector-worker static singleton.
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