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https://issues.apache.org/jira/browse/HBASE-18031?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16012448#comment-16012448
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Duo Zhang commented on HBASE-18031:
-----------------------------------

As the reopening of StoreFileScanner has to take care of the reference of 
HFileBlock in L2 cache, it is much more complicated to do a background 
switching. I do not think it can be resolved soon so move it out and link it 
with the old parent issue.

> Reopen StoreFileScanners in background when switching from pread to stream
> --------------------------------------------------------------------------
>
>                 Key: HBASE-18031
>                 URL: https://issues.apache.org/jira/browse/HBASE-18031
>             Project: HBase
>          Issue Type: Improvement
>          Components: scan
>            Reporter: Duo Zhang
>




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