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https://issues.apache.org/jira/browse/HBASE-17182?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15701955#comment-15701955
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Phil Yang commented on HBASE-17182:
-----------------------------------
I think we can use guava's cache which provides expireAfterAccess to remove
scanner automatically and RemovalListener to close the removed scanner. The
logic will be much simpler :)
> Memory leak from openScanner of HBase thrift2
> ---------------------------------------------
>
> Key: HBASE-17182
> URL: https://issues.apache.org/jira/browse/HBASE-17182
> Project: HBase
> Issue Type: Bug
> Components: Thrift
> Reporter: 易剑
>
> Client call openScanner, but client (coredump or others) not closeScanner,
> the scanner will not be removed from scannerMap.
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