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https://issues.apache.org/jira/browse/HBASE-20457?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16445329#comment-16445329
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ramkrishna.s.vasudevan commented on HBASE-20457:
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One more thing to consider. 

One case for eg the count 'table' case, where we do a scan wiht 
FirstKeyOnlyfiter. In this case we are switching over to STREAM after the first 
RPC. But when the scan moves over to the next region it is again DEFAULT type 
and then after first RPC it switches to STREAM. So should we do this way or 
after the first RPC in the first region switches to STREAM we should use the 
same mode in all other regions?

> Return immediately for a scan rpc call when we want to switch from pread to 
> stream
> ----------------------------------------------------------------------------------
>
>                 Key: HBASE-20457
>                 URL: https://issues.apache.org/jira/browse/HBASE-20457
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Duo Zhang
>            Priority: Major
>




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