We tried this route previously. We did not run repair at all {our use-cases
don't need a repair} but while adding a secondary data center, we were
forced to run repair. It ended up exploding the data.We finally had to start afresh, scrapped the cluster and re-import the data with NTS. Now, whether we require repair or not, we are running it regularly!!! I feel that it should be alright to migrate to NTS, if you run repairs regularly and keep the cluster healthy. Regards, Ravi On Fri, Apr 20, 2012 at 2:20 AM, aaron morton <[email protected]>wrote: > There is this, it's old.. > http://wiki.apache.org/cassandra/Operations#Replication > There was also a discussion about it in the last month or so. > > i *think* it's ok so long as you move to a single DC and single rack. But > please test. > > Cheers > > > ----------------- > Aaron Morton > Freelance Developer > @aaronmorton > http://www.thelastpickle.com > > On 20/04/2012, at 5:03 AM, Marcus Both wrote: > > I think that is enough to do an update on keyspace, for example > (cassandra-cli): > update keyspace KEYSPACE with placement_strategy = > 'org.apache.cassandra.locator.NetworkTopologyStrategy' and strategy_options > = {datacenter1: 1}; > > On Thu, 19 Apr 2012 16:18:46 +0100 > simojenki <[email protected]> wrote: > > Hi, > > > Is there any documentation on what the procedure for migrating from > > SimpleStrategy to NetworkTopologyStrategy? > > > thanks > > > Simon > > > > > -- > Marcus Both > > >
