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Date: Thu, 11 Apr 2013 22:03:16 +0000 (UTC)
From: "Jonathan Ellis (JIRA)" <jira@apache.org>
To: commits@cassandra.apache.org
Message-ID: <JIRA.12508186.1306243692622.152683.1365717796637@arcas>
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References: <JIRA.12508186.1306243692622@arcas>
Subject: [jira] [Commented] (CASSANDRA-2698) Instrument repair to be able to
 assess it's efficiency (precision)
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    [ https://issues.apache.org/jira/browse/CASSANDRA-2698?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13629454#comment-13629454 ] 

Jonathan Ellis commented on CASSANDRA-2698:
-------------------------------------------

Jake has an Eclipse formatter at https://github.com/tjake/cassandra-style-eclipse.  Not sure if it's 100% accurate but Jake's patches look okay to me so it's probably close. :)
                
> 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.   

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