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From "Anton Vinogradov (JIRA)" <j...@apache.org>
Subject [jira] [Created] (IGNITE-10497) jvm-pause-detector-worker should be JVM singleton
Date Fri, 30 Nov 2018 17:43:00 GMT
Anton Vinogradov created IGNITE-10497:
-----------------------------------------

             Summary: 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


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?
Lest make jvm-pause-detector-worker static singleton.



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