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https://issues.apache.org/jira/browse/HBASE-3852?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13030920#comment-13030920
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Jean-Daniel Cryans commented on HBASE-3852:
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@Alex, I'm not sure I understand what you're saying, by "on disconnect" you
mean when client is done with the server and closes the socket? How do you know
that? And what if the client was scanning but then never comes back?
> ThriftServer leaks scanners
> ---------------------------
>
> Key: HBASE-3852
> URL: https://issues.apache.org/jira/browse/HBASE-3852
> Project: HBase
> Issue Type: Bug
> Affects Versions: 0.90.2
> Reporter: Jean-Daniel Cryans
> Priority: Critical
> Fix For: 0.92.0
>
>
> The scannerMap in ThriftServer relies on the user to clean it by closing the
> scanner. If that doesn't happen, the ResultScanner will stay in the thrift
> server's memory and if any pre-fetching was done, it will also start
> accumulating Results (with all their data).
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