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From "Brandon Williams (JIRA)" <>
Subject [jira] [Commented] (CASSANDRA-6616) Nodetool repair is taking a long time.
Date Fri, 24 Jan 2014 21:01:40 GMT


Brandon Williams commented on CASSANDRA-6616:

This is because the CFs are being processed sequentially. CASSANDRA-6566 may help some, but
if all of these CFs did have data, processing them in parallel would be detrimental to IO.
 It would be better to have much less CFs.

> Nodetool repair is taking a long time. 
> ---------------------------------------
>                 Key: CASSANDRA-6616
>                 URL:
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>         Environment: Cassandra Version 2.0.4 running on Redhat Version 6
>            Reporter: Dharsan Logendran
> We have a two  nodes cluster with the replication factor of 2.   The db has more than
2500 column families(tables).   The 'nodetool -pr -par' repair on an empty database(one or
table has a litter data) takes about 30 hours to complete.  

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