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Posted to commits@cassandra.apache.org by "Anubhav Kale (JIRA)" <ji...@apache.org> on 2015/12/23 21:20:46 UTC

[jira] [Created] (CASSANDRA-10936) Provide option to repair from a data center in "nodetool repair"

Anubhav Kale created CASSANDRA-10936:
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             Summary: Provide option to repair from a data center in "nodetool repair"
                 Key: CASSANDRA-10936
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-10936
             Project: Cassandra
          Issue Type: Improvement
          Components: Tools
         Environment: PROD
            Reporter: Anubhav Kale
            Priority: Minor


Sometimes, its known that the correct / latest data resides in a Data Center. It would be useful if nodetool repair can provide a "Source DC" option to source the data from. This will save a ton of traffic on the network.

There are some discussions around this in CASSANDRA-6552.

A case in point where this is handy: People may want to backup data from a designated data center (so that only one copy of data is backed up) to remote storage (azure / AWS). At restore time once the data is restored to this DC, other data centers can "source" data from this through "nodetool repair -- source Foo".



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