[ 
https://issues.apache.org/jira/browse/CASSANDRA-2698?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13616569#comment-13616569
 ] 

Benedict edited comment on CASSANDRA-2698 at 3/28/13 8:26 PM:
--------------------------------------------------------------

Hi Yuki,

The patch was created some time ago, and there were some minor renames/changes 
to MerkleTree and AntiEntropyService in the meantime. I've pulled the latest 
changes, merged, and regenerated the patch. This is against the main trunk / 
HEAD branch.
                
      was (Author: benedict):
    Hi Yuki,

The patch was created some time ago, and there were some minor renames/changes 
to MerkleTree and AntiEntropyService in the meantime. I've pulled the latest 
changes, merged, and regenerated the patch. This is against the main trunk.
                  
> Instrument repair to be able to assess it's efficiency (precision)
> ------------------------------------------------------------------
>
>                 Key: CASSANDRA-2698
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-2698
>             Project: Cassandra
>          Issue Type: Improvement
>            Reporter: Sylvain Lebresne
>            Assignee: Benedict
>            Priority: Minor
>              Labels: lhf
>         Attachments: nodetool_repair_and_cfhistogram.tar.gz, 
> patch_2698_v1.txt, patch.diff, patch-rebased.diff
>
>
> Some reports indicate that repair sometime transfer huge amounts of data. One 
> hypothesis is that the merkle tree precision may deteriorate too much at some 
> data size. To check this hypothesis, it would be reasonably to gather 
> statistic during the merkle tree building of how many rows each merkle tree 
> range account for (and the size that this represent). It is probably an 
> interesting statistic to have anyway.   

--
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

Reply via email to