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Posted to commits@cassandra.apache.org by "Pankaj (JIRA)" <ji...@apache.org> on 2018/03/16 12:22:00 UTC

[jira] [Commented] (CASSANDRA-11243) Memory LEAK CqlInputFormat

    [ https://issues.apache.org/jira/browse/CASSANDRA-11243?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16401805#comment-16401805 ] 

Pankaj commented on CASSANDRA-11243:
------------------------------------

Any update on the fix: I'm facing same issue with flink-cassandra-connector_2.11: 1.3.2

> 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
>            Priority: Major
>
> 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>
> The same jar is working on a single node Hadoop configuration, the memory leak error show up in the cluster hadoop configuration.



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