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https://issues.apache.org/jira/browse/HBASE-7364?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mikhail Bautin resolved HBASE-7364.
-----------------------------------

    Resolution: Invalid

Wrong project -- this is a Hive issue.
                
> Concurrency issue: RCFile returns decompressors twice
> -----------------------------------------------------
>
>                 Key: HBASE-7364
>                 URL: https://issues.apache.org/jira/browse/HBASE-7364
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Mikhail Bautin
>            Priority: Critical
>
> RCFile is not thread-safe, even if each reader is only used by one thread as 
> intended, because it is possible to return decompressors to the pool multiple 
> times by calling close on the reader multiple times. Then, different threads 
> can pick up the same decompressor twice from the pool, resulting in 
> decompression failures.

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