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From "Matteo Zuccon (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CASSANDRA-11243) Memory LEAK CqlInputFormat
Date Thu, 25 Feb 2016 20:36:18 GMT
Matteo Zuccon created CASSANDRA-11243:
-----------------------------------------

             Summary: Memory LEAK CqlInputFormat
                 Key: CASSANDRA-11243
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-11243
             Project: Cassandra
          Issue Type: Bug
         Environment: Ubuntu 14.04.04 LTS
Hadoop 2.7
Cassandra 3.3
            Reporter: Matteo Zuccon


Error: "util.ResourceLeakDetector: 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"

Using CqlInputFormat.Class as input format for an Hadoop Mapreduce program (on distributed
Hadoop Cluster) gives a memory leak error.

Version of the library used:

<dependency>
	<groupId>org.apache.cassandra</groupId>
	<artifactId>cassandra-all</artifactId>
	<version>3.3</version>
</dependency>




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