hbase-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Lars Hofhansl (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-8420) Port HBASE-6874 Implement prefetching for scanners from 0.89-fb
Date Sat, 04 May 2013 04:50:16 GMT

    [ https://issues.apache.org/jira/browse/HBASE-8420?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13649011#comment-13649011
] 

Lars Hofhansl commented on HBASE-8420:
--------------------------------------

I find it hard to convince myself that the changed code behaves exactly like the exiting.

We probably should not do this in 0.94:
{code}
-        this.caching = conf.getInt("hbase.client.scanner.caching", 1);
+        this.caching = conf.getInt("hbase.client.scanner.caching", 100);
{code}

Lastly in 0.94, we could use scan attributes to indicate this per scanner in a backward compatible
way.

                
> Port  HBASE-6874  Implement prefetching for scanners from 0.89-fb
> -----------------------------------------------------------------
>
>                 Key: HBASE-8420
>                 URL: https://issues.apache.org/jira/browse/HBASE-8420
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Jimmy Xiang
>            Assignee: Jimmy Xiang
>         Attachments: 0.94-8420_v1.patch, trunk-8420_v1.patch
>
>
> This should help scanner performance.  We should have it in trunk.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira

Mime
View raw message