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From "Dean Hiller (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CASSANDRA-5335) need ability to switch to LCS node by node
Date Tue, 12 Mar 2013 13:07:13 GMT
Dean Hiller created CASSANDRA-5335:
--------------------------------------

             Summary: need ability to switch to LCS node by node
                 Key: CASSANDRA-5335
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-5335
             Project: Cassandra
          Issue Type: Bug
    Affects Versions: 1.2.2
         Environment: linux, cassandra 1.2.2
            Reporter: Dean Hiller


when we switched to LCS, nearly all the servers started rewriting their file structure.  We
need a way to switch just one node so we can slowly roll out a huge change like this.  doing
the whole cluster brought it to it's needs and we tried nodetool stop compaction on some nodes
but that did not help at all.  We had to really wait overnight for all LCS to finish. 

We had also tried nodetool setcompactionthroughput 1 which also had no effect and performance
was still pretty bad.  Ideally, none of this would be a problem if we were just doing one
node as we would just pull the node back out while it was converting to LCS.

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