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From "Benedict (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (CASSANDRA-10055) High CPU load for Cassandra 2.1.8
Date Wed, 12 Aug 2015 22:53:45 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-10055?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14694360#comment-14694360
] 

Benedict edited comment on CASSANDRA-10055 at 8/12/15 10:53 PM:
----------------------------------------------------------------

Could you provide a few outputs from jstack and {{top -bHn1}} (whilst under load)?

There were a number of improvements to CPU utilisation in 2.1, so it is possible this is just
C* better saturating your CPUs, and performing its work more quickly.


was (Author: benedict):
Could you provide a few outputs from jstack and {{top -bHn1}}?

There were a number of improvements to CPU utilisation in 2.1, so it is possible this is just
C* better saturating your CPUs, and performing its work more quickly.

> High CPU load for Cassandra 2.1.8
> ---------------------------------
>
>                 Key: CASSANDRA-10055
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-10055
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Config
>         Environment: Prod
>            Reporter: vijay
>
> We are seeing High CPU Load about 80% to 100% in Cassandra 2.1.8 when doing Data ingest,
we did not had this issue in 2.0.x version of Cassandra
> we tested this in different Cloud platforms and results are same.
> CPU: Tested with M3 2xlarge AWS instances
> Ingest rate: Injecting 1 million Inserts each insert is of 1000bytes
> no other Operations are happening except inserts in Cassandra
> let me know if more info is needed.



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