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https://issues.apache.org/jira/browse/CASSANDRA-12221?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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vin01 updated CASSANDRA-12221:
------------------------------
    Description: 
I see some logs which look like :-

INFO  [SharedPool-Worker-22] 2016-07-17 22:03:02,725 NoSpamLogger.java:91 - 
Maximum memory usage reached (536870912 bytes), cannot allocate chunk of 
1048576 bytes
INFO  [SharedPool-Worker-33] 2016-07-17 22:18:02,747 NoSpamLogger.java:91 - 
Maximum memory usage reached (536870912 bytes), cannot allocate chunk of 
1048576 bytes
INFO  [SharedPool-Worker-35] 2016-07-17 22:33:02,829 NoSpamLogger.java:91 - 
Maximum memory usage reached (536870912 bytes), cannot allocate chunk of 
1048576 bytes
INFO  [SharedPool-Worker-31] 2016-07-17 22:48:02,834 NoSpamLogger.java:91 - 
Maximum memory usage reached (536870912 bytes), cannot allocate chunk of 
1048576 bytes

When i get these logs, CPU usage is quite high on the system.
Are they expected? Log message also seems confusing and i am not sure what 
memory we are talking about here..

  was:
I see some logs which look like :-

INFO  [SharedPool-Worker-22] 2016-07-17 22:03:02,725 NoSpamLogger.java:91 - 
Maximum memory usage reached (536870912 bytes), cannot allocate chunk of 
1048576 bytes
INFO  [SharedPool-Worker-33] 2016-07-17 22:18:02,747 NoSpamLogger.java:91 - 
Maximum memory usage reached (536870912 bytes), cannot allocate chunk of 
1048576 bytes
INFO  [SharedPool-Worker-35] 2016-07-17 22:33:02,829 NoSpamLogger.java:91 - 
Maximum memory usage reached (536870912 bytes), cannot allocate chunk of 
1048576 bytes
INFO  [SharedPool-Worker-31] 2016-07-17 22:48:02,834 NoSpamLogger.java:91 - 
Maximum memory usage reached (536870912 bytes), cannot allocate chunk of 
1048576 bytes

When i see these logs, CPU usage is quite high on the system.
Are they expected? Log message also seems confusing and i am not sure what 
memory we are talking about here..


> Maximum Memory Usage Reached - NoSpamLogger
> -------------------------------------------
>
>                 Key: CASSANDRA-12221
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-12221
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>         Environment: CentOS 6.8 x86_64, Cassandra-3.0.7
>            Reporter: vin01
>            Priority: Minor
>
> I see some logs which look like :-
> INFO  [SharedPool-Worker-22] 2016-07-17 22:03:02,725 NoSpamLogger.java:91 - 
> Maximum memory usage reached (536870912 bytes), cannot allocate chunk of 
> 1048576 bytes
> INFO  [SharedPool-Worker-33] 2016-07-17 22:18:02,747 NoSpamLogger.java:91 - 
> Maximum memory usage reached (536870912 bytes), cannot allocate chunk of 
> 1048576 bytes
> INFO  [SharedPool-Worker-35] 2016-07-17 22:33:02,829 NoSpamLogger.java:91 - 
> Maximum memory usage reached (536870912 bytes), cannot allocate chunk of 
> 1048576 bytes
> INFO  [SharedPool-Worker-31] 2016-07-17 22:48:02,834 NoSpamLogger.java:91 - 
> Maximum memory usage reached (536870912 bytes), cannot allocate chunk of 
> 1048576 bytes
> When i get these logs, CPU usage is quite high on the system.
> Are they expected? Log message also seems confusing and i am not sure what 
> memory we are talking about here..



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