cassandra-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Alain RODRIGUEZ <arodr...@gmail.com>
Subject Re: Duplicating a cluster with different # of disks
Date Thu, 06 Aug 2015 20:31:23 GMT
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.

Make sure to have enough space (disks / nodes) to handle your whole set of
data in the keyspace you want to load and it should be ok.

I think that this is the easiest approach, you don't need to care about
SSTable at all, Cassandra does it for you.

C*heers,

Alain

2015-08-06 18:50 GMT+02:00 Gerard Maas <gerard.maas@gmail.com>:

> Hi,
>
> I'm currently trying to duplicate a given keyspace on a new cluster to run
> some analytics on it.
>
> My source cluster has 3 disks and corresponding data directories (mnt,
> mnt2, mnt3) but the machines in my target cluster only have 2 disks (mnt,
> mnt2).
>
> What should be the correct procedure to copy the sstable data  from source
> to destination in this case?
>
> -kr, Gerard.
>

Mime
View raw message