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From "Sylvain Lebresne (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-2758) nodetool repair never finishes. Loops forever through merkle trees?
Date Tue, 14 Jun 2011 09:58:47 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-2758?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Sylvain Lebresne updated CASSANDRA-2758:
----------------------------------------

    Priority: Minor  (was: Major)

> nodetool repair never finishes. Loops forever through merkle trees?
> -------------------------------------------------------------------
>
>                 Key: CASSANDRA-2758
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-2758
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 0.8.0
>            Reporter: Terje Marthinussen
>            Assignee: Sylvain Lebresne
>            Priority: Minor
>             Fix For: 0.8.1
>
>         Attachments: 0001-Fix-MerkleTree.init-to-not-create-non-sensical-trees.patch
>
>
> I am not sure all steps here is needed, but as part of testing something else, I set
up
> node1: initial_token: 1
> node2: initial_token: 5
> Then:
> {noformat}
> create keyspace myks 
>  with placement_strategy = 'org.apache.cassandra.locator.SimpleStrategy'
>  with strategy_options = [{ replication_factor:2 }];
> use myks;
> create column family test with comparator = AsciiType and column_metadata=[ {column_name:
'up_', validation_class: LongType, index_type: 0}, {column_name: 'del_', validation_class:
LongType, index_type: 0} ]
>  and keys_cached = 100000 and rows_cached = 10000 and min_compaction_threshold = 2;
> quit;
> {noformat}
> Doing nodetool repair after this gets both nodes busy looping forever.
> A quick look at one node in eclipse makes me guess its having fun spinning through  merkle
trees, but I have to admit I have not look at it for a long time.

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