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From Ran Tavory <>
Subject Re: how to decommission two slow nodes?
Date Fri, 21 May 2010 03:54:00 GMT
I forgot to mention that the cluster cannot be taken down, it needs to
continue serving... is there another way?

On May 21, 2010 3:03 AM, "Jonathan Ellis" <> wrote:

One possibility:

rsync the data to the next node in the ring that is in the same DC.
(specifically, rsync once, then flush on the source node and rsync
again.)  Then stop the entire cluster, and restart everyone but those
two nodes.  Then run nodetool repair on each machine.

If your client is not reading at CL.ALL during repair, it could miss
data that was written after the rsync.  Your call if that's

On Wed, May 19, 2010 at 11:57 PM, Ran Tavory <> wrote:
> In my cluster setup I have...
Jonathan Ellis
Project Chair, Apache Cassandra
co-founder of Riptano, the source for professional Cassandra support

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