[jira] [Created] (CASSANDRA-10837) Cluster/session should be closed in Cassandra Hadoop Input/Output classes

["Alex Liu (JIRA)" <ji...@apache.org>]

Alex Liu created CASSANDRA-10837:
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             Summary: Cluster/session should be closed in Cassandra Hadoop Input/Output classes
                 Key: CASSANDRA-10837
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-10837
             Project: Cassandra
          Issue Type: Bug
            Reporter: Alex Liu
            Assignee: Alex Liu


See a lot of following warnings during Hadoop job running

{code}
ERROR 11:37:45 LEAK: You are creating too many HashedWheelTimer instances.  HashedWheelTimer is a shared resource that must be reused across the JVM,so that only a few instances are created.

{code}

Each cluster/session needs be closed and a shared HashedWheelTimer may reduce the resource leakage.



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