Many thanks for confirming the procedure. I was doing the copy from 3->2 as
explained before. My doubt came from noticing that the total count
strongly differed from src to destination. 3M vs 150k.
But small test tables with few hundred records all went well.
Double checked the copy and the proce
I agree with Jeff, those 2 solution should work well indeed to have
distinct cluster (data will be fixed in time, not synchronised).
It really depends on you but basically having hybride data storage
structures is not an issue at all in both cases as it is something that you
can set in the cassand
I forget to specify that you will obtain 2 DC instead of 2 cluster, the
main differences are that DCs are connected through gossip and keep synced
(make sure your clients are sticked to your main DC). Depending on what you
want to achieve you might want 2 clusters or 2 DC.
2015-08-06 22:31 GMT+02:
You can copy all of the sstables into any given data directory without issue
(keep them within the keyspace/table directories, but the mnt/mnt2/mnt3
location is irrelevant).
You can also stream them in via sstableloader if your ring topology has changed
(especially if tokens have moved)
From
Hi Gerard,
You should probably add a new datacenter following this procedure :
http://docs.datastax.com/en/cassandra/2.1/cassandra/operations/ops_add_dc_to_cluster_t.html
You will just have to make sure to configure all the nodes of the new nodes
to use mnt + mnt2 instead of mnt + mnt2 + mnt3.
M
