hbase-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Anoop Sam John (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-13890) Get/Scan from MemStore only (Client API)
Date Thu, 09 Jul 2015 04:27:05 GMT

    [ https://issues.apache.org/jira/browse/HBASE-13890?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14619866#comment-14619866
] 

Anoop Sam John commented on HBASE-13890:
----------------------------------------

bq.public OperationWithAttributes setMemstoreOnly(boolean v){
We will have to override this method in Get, Scan, Append and Increment (wherever  we want
the feature) and return those types rather than OperationWithAttributes.    Also Put, Delete
etc also will have this method available.  Do we need to throw Exception when some one calls
this on Put, Delete etc?

> 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.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Mime
View raw message