[jira] [Updated] (CASSANDRA-6056) Heavy write load exhausts heap space

["arnaud-lb (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CASSANDRA-6056?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

arnaud-lb updated CASSANDRA-6056:
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    Attachment: jvisualvm-class-instances.png
    
> Heavy write load exhausts heap space
> ------------------------------------
>
>                 Key: CASSANDRA-6056
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-6056
>             Project: Cassandra
>          Issue Type: Bug
>         Environment: Debian, Cassandra 2.0
>            Reporter: arnaud-lb
>         Attachments: jvisualvm-class-instances.png
>
>
> Issuing many INSERT or UPDATE queries cause cassandra to exhaust the heap space in a few minutes. It then gets stuck in full GCs, failing to recover.
> Observed with the default config from Datastax Debian packages, with a 8GB heap. Query rate is around 35K queries per second, with 16 concurrent queries.

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