On Tue, Dec 17, 2013 at 8:00 AM, Joel Segerlind <[email protected]> wrote:

> Hi,
>
> I'm trying to decommission a node from a six node Cassandra 2.0.3 cluster,
> following the instructions at
> http://www.datastax.com/documentation/cassandra/2.0/webhelp/index.html#cassandra/operations/ops_remove_node_t.html
>
 ...

> When decommissioning nodes, would it be sufficient to run nodetool repair
> -pr on the node to be decommissioned?
>

Not sure why those instructions would tell you to repair *before* removing
a node from the cluster?

Decommission streams a nodes key to the new node responsible for the range,
why would a repair be required beforehand?


> The node has just short of 11GB data in one keyspace (RF=3), and the
> repair is taking forever (around 25 hours if it's keeping the current pace).
>

Do you see it actually doing anything?


> Re-reading the instructions I realized that I ran nodetool repair,
> instead of nodetool repair *keyspace_name*, but this can't have this kind
> of impact right? I ran nodetool repair -pr on the same node yesterday,
> and it took around 35 min.
>

Do you use vnodes?

=Rob

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