cassandra-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Ken Hancock <>
Subject Re: Repair taking long time
Date Mon, 29 Sep 2014 19:24:01 GMT
On Mon, Sep 29, 2014 at 2:29 PM, Robert Coli <> wrote:

> As an aside, you "just lose" with vnodes and clusters of the size. I
> presume you plan to grow over appx 9 nodes per DC, in which case you
> probably do want vnodes enabled.

I typically only see discussion on vnodes vs. non-vnodes, but it seems to
me that might be more important to discuss the number of vnodes per node.
A small cluster having 256 vnodes/node is unwise given some of the
sequential operations that are still done.  Even if operations were done in
parallel, having a 256x increase in parallelization seems an equally bad

I've never seen any discussion on how many vnodes per node might be an
appropriate answer based a planned cluster size -- does such a thing exist?


View raw message