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From "Jonathan Ellis (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-2324) Repair transfers more data than necessary
Date Fri, 01 Apr 2011 15:07:05 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-2324?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jonathan Ellis updated CASSANDRA-2324:
--------------------------------------

    Affects Version/s:     (was: 0.7.0)
                       0.6
        Fix Version/s:     (was: 0.7.5)
                       0.8

> Repair transfers more data than necessary
> -----------------------------------------
>
>                 Key: CASSANDRA-2324
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-2324
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 0.6
>            Reporter: Brandon Williams
>            Assignee: Sylvain Lebresne
>             Fix For: 0.8
>
>         Attachments: 0001-Make-repair-operate-over-a-node-token-range.patch
>
>
> To repro: 3 node cluster, stress.java 1M rows with -x KEYS and -l 2.  The index is enough
to make some mutations drop (about 20-30k total in my tests).  Repair afterwards will repair
a large amount of ranges the first time.  However, each subsequent run will repair the same
set of small ranges every time.  INDEXED_RANGE_SLICE in stress never fully works.  Counting
rows with sstablekeys shows there are 2M rows total as expected, however when trying to count
the indexed keys, I get exceptions like:
> {noformat}
> Exception in thread "main" java.io.IOException: Key out of order! DecoratedKey(101571366040797913119296586470838356016,
0707ab782c5b5029d28a5e6d508ef72f0222528b5e28da3b7787492679dc51b96f868e0746073e54bc173be927049d0f51e25a6a95b3268213b8969abf40cea7d7)
> DecoratedKey(12639574763031545147067490818595764132, 0bc414be3093348a2ad389ed28f18f0cc9a044b2e98587848a0d289dae13ed0ad479c74654900eeffc6236)
>         at org.apache.cassandra.tools.SSTableExport.enumeratekeys(SSTableExport.java:206)
>         at org.apache.cassandra.tools.SSTableExport.main(SSTableExport.java:388)
> {noformat}

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