> Can he not specify all 256 tokens in the YAML of the new cluster > and then copy sstables? > I know it is a bit ugly but should work. You can pass a comma separated list of tokens to the -Dcassandra.replace_token JVM param.
AFAIK it's not possible to provide the list in the yaml file. Cheers A ----------------- Aaron Morton Cassandra Consultant New Zealand @aaronmorton http://www.thelastpickle.com On 11/07/2013, at 5:07 AM, Baskar Duraikannu <baskar.duraikannu...@gmail.com> wrote: > > I copied the sstables and then ran a repair. It worked. Looks like export and > import may have been much faster given that we had very little data. > > Thanks everyone. > > > > > On Tue, Jul 9, 2013 at 1:34 PM, sankalp kohli <kohlisank...@gmail.com> wrote: > Hi Aaron, > Can he not specify all 256 tokens in the YAML of the new cluster > and then copy sstables? > I know it is a bit ugly but should work. > > Sankalp > > > On Tue, Jul 9, 2013 at 3:19 AM, Baskar Duraikannu > <baskar.duraikannu...@gmail.com> wrote: > Thanks Aaron > > On 7/9/13, aaron morton <aa...@thelastpickle.com> wrote: > >> Can I just copy data files for the required keyspaces, create schema > >> manually and run repair? > > If you have something like RF 3 and 3 nodes then yes, you can copy the data > > from one node in the source cluster to all nodes in the dest cluster and use > > cleanup to remove the unneeded data. Because each node in the source cluster > > has a full copy of the data. > > > > If that's not the case you cannot copy the data files, even if they have the > > same number of nodes, because the nodes in the dest cluster will have > > different tokens. AFAIK you need to export the full data set from the source > > DC and then import it into the dest system. > > > > The Bulk Load utility may be of help > > http://www.datastax.com/docs/1.2/references/bulkloader . You could copy the > > SSTables from every node in the source system and bulk load them into the > > dest system. That process will ensure rows are sent to nodes that are > > replicas. > > > > Cheers > > > > ----------------- > > Aaron Morton > > Freelance Cassandra Consultant > > New Zealand > > > > @aaronmorton > > http://www.thelastpickle.com > > > > On 9/07/2013, at 12:45 PM, Baskar Duraikannu > > <baskar.duraikannu...@gmail.com> wrote: > > > >> We have two clusters used by two different groups with vnodes enabled. Now > >> there is a need to move some of the keyspaces from cluster 1 to cluster 2. > >> > >> > >> Can I just copy data files for the required keyspaces, create schema > >> manually and run repair? > >> > >> Anything else required? Please help. > >> -- > >> Thanks, > >> Baskar Duraikannu > > > > > >
