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Posted to issues@hbase.apache.org by "stack (JIRA)" <ji...@apache.org> on 2013/05/18 22:25:15 UTC

[jira] [Commented] (HBASE-1225) [performance] Return results on scanner open, not just on next + make close asynchronous and unnecessary if scanner is exhausted

    [ https://issues.apache.org/jira/browse/HBASE-1225?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13661422#comment-13661422 ] 

stack commented on HBASE-1225:
------------------------------

As of 0.95 and pb, if server says no more results, then clientside we will set the ClientScanner as closed and scannerId as -1 (another indicator of closedness).  Client-side, we may subsequently call close on the scanner and find the closed flag so we'll save on the close rpc we used do.

Remaining then is returning results as well as the scannerid on scanner open.
                
> [performance] Return results on scanner open, not just on next + make close asynchronous and unnecessary if scanner is exhausted
> --------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-1225
>                 URL: https://issues.apache.org/jira/browse/HBASE-1225
>             Project: HBase
>          Issue Type: Improvement
>          Components: Performance
>            Reporter: stack
>


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