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Posted to commits@cassandra.apache.org by "arnaud-lb (JIRA)" <ji...@apache.org> on 2013/09/18 18:17:53 UTC

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

arnaud-lb created CASSANDRA-6056:
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             Summary: 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


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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