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From "Anoop Sam John (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-13890) Get/Scan from MemStore only (Client API)
Date Tue, 07 Jul 2015 07:25:05 GMT

    [ https://issues.apache.org/jira/browse/HBASE-13890?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14616309#comment-14616309
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Anoop Sam John commented on HBASE-13890:
----------------------------------------

{code}
if(results.size() == 0 && get.isMemstoreOnly()){
7071	              // memory store mode
7072	              // Nothing was found - return empty result or null
7073	              return increment.isReturnResults() ? Result.create(results) : null;
7074	            }
{code}

I see..  Checking the patch now.  So this will fail it to client..  Can the get op be repeated
(with out memstore only setting) at server side only?

> Get/Scan from MemStore only (Client API)
> ----------------------------------------
>
>                 Key: HBASE-13890
>                 URL: https://issues.apache.org/jira/browse/HBASE-13890
>             Project: HBase
>          Issue Type: New Feature
>          Components: API, Client, Scanners
>            Reporter: Vladimir Rodionov
>            Assignee: Vladimir Rodionov
>         Attachments: HBASE-13890-v1.patch
>
>
> This is short-circuit read for get/scan when recent data (version) of a cell can be found
only in MemStore (with very high probability). 
> Good examples are: Atomic counters and appends. This feature will allow to bypass completely
store file scanners and improve performance and latency.



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