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From "Stu Hood (JIRA)" <>
Subject [jira] Commented: (CASSANDRA-1285) Have a way to increase the replication factor
Date Fri, 03 Sep 2010 07:43:34 GMT


Stu Hood commented on CASSANDRA-1285:

* The purge() and map() steps in UpdateColumnFamily.applyModels don't seem necessary, since
CFMetaData.apply() doesn't allow you to change the keyspace, columnfamily or id
* In UpdateKeyspace: "Keyspace updated. Plese perform any manual operations"
* Direct "Class.forName" in system_update_keyspace can be replaced with FBUtilities.classForName


> Have a way to increase the replication factor
> ---------------------------------------------
>                 Key: CASSANDRA-1285
>                 URL:
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: Core
>    Affects Versions: 0.7 beta 1
>            Reporter: Arya Goudarzi
>            Assignee: Gary Dusbabek
>             Fix For: 0.7 beta 2
>         Attachments: v1-0001-thrift-changes.txt, v1-0002-UpdateKeyspace-migration.txt,
> In 0.6 we were able to change the storage.conf and increase the replication factor and
restart the server then repair the data across cluster to increase the replication factor
for a keyspace. In 0.7 having moved away from storage.conf, it would be a good idea to have
a method in api/jmx to alter keyspace so that replication factor could be changed as in 0.6.

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