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https://issues.apache.org/jira/browse/CASSANDRA-3244?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13113091#comment-13113091
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Patricio Echague commented on CASSANDRA-3244:
---------------------------------------------
The list just holds statement objects
> JDBC CassandraConnection may lead to memory leak when used in a pool
> --------------------------------------------------------------------
>
> Key: CASSANDRA-3244
> URL: https://issues.apache.org/jira/browse/CASSANDRA-3244
> Project: Cassandra
> Issue Type: Improvement
> Components: Drivers
> Affects Versions: 1.0.0
> Reporter: Patricio Echague
> Priority: Minor
>
> I may be wrong here but I noticed that the implementations of
> CassandraConnection#createStatement() and
> CassandraConnection#prepareStatement() keep(cache) the created
> Statement/PrepareStatement internally in a List.
> They list is freed up only during CassandraConnection.close() which makes me
> think that, if the connection object is used in a pool implementation, it
> will lead to a memory leak as it will hold every single statement that is
> used to interact with the DB until the connection gets closed.
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