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From "Vladimir Yudovin (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-13079) Repair doesn't work after several replication factor changes
Date Tue, 27 Dec 2016 12:47:58 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-13079?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15780332#comment-15780332
] 

Vladimir Yudovin commented on CASSANDRA-13079:
----------------------------------------------

Well, indeed, --full helps.

And this rise a question - shouldn't replication factor change also reset repair state for
this keyspace?

> Repair doesn't work after several replication factor changes
> ------------------------------------------------------------
>
>                 Key: CASSANDRA-13079
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-13079
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>         Environment: Debian 
>            Reporter: Vladimir Yudovin
>            Priority: Critical
>
> Scenario:
> Start two nodes cluster.
> Create keyspace with rep.factor *one*:
> CREATE KEYSPACE rep WITH replication = {'class': 'SimpleStrategy', 'replication_factor':
1};
> CREATE TABLE rep.data (str text PRIMARY KEY );
> INSERT INTO rep.data (str) VALUES ( 'qwerty');
> Run *nodetool flush* on all nodes. On one of them table files are created.
> Change replication factor to *two*:
> ALTER KEYSPACE rep WITH replication = {'class': 'SimpleStrategy', 'replication_factor':
2};
> Run repair, then *nodetool flush* on all nodes. On all nodes table files are created.
> Change replication factor to *one*:
> ALTER KEYSPACE rep WITH replication = {'class': 'SimpleStrategy', 'replication_factor':
1};
> Then *nodetool cleanup*, only on initial node remained data files.
> Change replication factor to *two* again:
> ALTER KEYSPACE rep WITH replication = {'class': 'SimpleStrategy', 'replication_factor':
2};
> Run repair, then *nodetool flush* on all nodes. No data files on second node (though
expected, as after first repair/flush).



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