Interesting you even dare to do a live migration :-) Do you do all Murmur-writes with the timestamp from the "Random"-data? So that all migrated data is written with timestamps from the past.
On Mon, Dec 23, 2013 at 3:59 PM, Rahul Menon <ra...@apigee.com> wrote: > Christian, > > I have been planning to migrate my cluster from random to murmur3 in a > similar manner. I intend to use pycassa to read and then write to the newer > cluster. My only concern would be ensuring the consistency of already > migrated data as the cluster ( with random ) would be constantly serving > the production traffic. I was able to do this on a non prod cluster, but > production is a different game. > > I would also like to hear more about this, especially if someone was able > to successfully do this. > > Thanks > Rahul > > > On Mon, Dec 23, 2013 at 6:45 PM, horschi <hors...@gmail.com> wrote: > >> Hi list, >> >> has anyone ever tried to migrate a cluster from Random to Murmur? >> >> We would like to do so, to have a more standardized setup. I wrote a >> small (yet untested) utility, which should be able to read SSTable files >> from disk and write them into a cassandra cluster using Hector. This >> migration would be offline of course and would only work for smaller >> clusters. >> >> Any thoughts on the topic? >> >> kind regards, >> Christian >> >> PS: The reason for doing so are not "performance". It is to simplify >> operational stuff for the years to come. :-) >> > >
