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https://issues.apache.org/jira/browse/HADOOP-16728?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Benoit Perroud updated HADOOP-16728:
------------------------------------
Labels: SFTP (was: )
> SFTPFileSystem connection pool not reusing connections properly
> ---------------------------------------------------------------
>
> Key: HADOOP-16728
> URL: https://issues.apache.org/jira/browse/HADOOP-16728
> Project: Hadoop Common
> Issue Type: Bug
> Components: fs
> Affects Versions: 3.2.1
> Reporter: Benoit Perroud
> Priority: Major
> Labels: SFTP
>
> This issue is trying to address few issues in the SFTP filesystem, and
> especially in SFTPConnectionPool:
> * all channels for a given connectionInfo are removed from the pool instead
> of only the selected channel.
> * Closed connections are added back into the pool. They should be filtered
> out.
> * The SFTPInputStream is closing the stream instead of returning it into the
> pool.
> * Some connection leak could happen in some cases
> As a result, if you have multiple threads sharing the pool, the SFTP
> filesystem is underperforming by untimely re-establishing SSH connections.
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