On Mon, Sep 8, 2014 at 11:08 AM, Tim Heckman <t...@pagerduty.com> wrote:
> I'm looking to convert our recently upgraded Cassandra cluster from a > single token per node to using vnodes. We've determined that based on > our data consistency and usage patterns that shuffling will be the > best way to convert our live cluster. > You apparently haven't read anything else about shuffling, or you would have learned that no one has ever successfully done it in a real production cluster. ;) > Unfortunately, the underlying error is not printed so I'm effectively > troubleshooting in the dark. > This mysterious error is protecting you from a probably quite negative experience with shuffle. > I've done some mailing list diving, as well as Google skimming, and > all the suggestions did not seem to work. > What version of Cassandra are you running? I would not be surprised if shuffle is in fact completely broken in 2.0.x release, not only hazardous to attempt. Why do you believe that you want to shuffle and/or enable vnodes? How large is the cluster and how large is it likely to become? =Rob
