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https://issues.apache.org/jira/browse/CASSANDRA-3121?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jonathan Ellis resolved CASSANDRA-3121.
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Resolution: Not A Problem
Fix Version/s: (was: 0.8.4)
(a) there is no primary / backup distinction in cassandra
(b) if your app cares about which nodes hold a given row you are almost
certainly doing it wrong, but the right place to have that discussion is the
user mailing list
> How to know which servers to replication
> ----------------------------------------
>
> Key: CASSANDRA-3121
> URL: https://issues.apache.org/jira/browse/CASSANDRA-3121
> Project: Cassandra
> Issue Type: Bug
> Components: Tools
> Affects Versions: 0.8.4
> Environment: Cassandra0.7.5 and Cassandra0.8.4
> Reporter: deng
>
> When we create keysapce we can set replication_factor , Assuming the
> cluster has five machines here.Node1,Node2,Node3,Node4,Node5. when I create
> keypsace at Node1 server and set replication_factor =3 ,it means that it will
> choose 2 servers to backup.
> My question is that how we can know which 2 nodes are choosed to backup ? I
> can not find this answer at Cassandra0.7.5 or Cassandra0.8.4.
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