On Tue, Jul 9, 2013 at 12:36 AM, Ananth Gundabattula <
agundabatt...@threatmetrix.com> wrote:
>
> The thread below makes me wonder "Does RF matter when using sstable
loader.?" My assumption was that stable loader will take care of RF when
the streaming is done but just wanted to cross check. We ar
cassandra.apache.org<mailto:user@cassandra.apache.org>"
mailto:user@cassandra.apache.org>>
Subject: Re: Migrating data from 2 node cluster to a 3 node cluster
Without vnodes the initial_token is stored in the yaml file, as well as the
system LocationInfo CF.
With vnodes the o
Without vnodes the initial_token is stored in the yaml file, as well as the
system LocationInfo CF.
With vnodes the only place the tokens are stored is in the system KS. So moving
a node without it's system KS will cause it to generate new ones which will
mean data is moved around.
Cheers
-
"Leaving the system keyspaces behind is OK if you are not using vnodes. "
Why is it different for vnodes?
On Mon, Jul 8, 2013 at 3:37 PM, aaron morton wrote:
> This might work for user created keyspaces but might not work for system
> keyspace
>
> Leaving the system keyspaces behind is OK if yo
> This might work for user created keyspaces but might not work for system
> keyspace
Leaving the system keyspaces behind is OK if you are not using vnodes.
Cheers
-
Aaron Morton
Freelance Cassandra Consultant
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 9/07/2013,
"If RF=N or RF>N, you can just copy all SStables to all nodes, watching out
for name collision."
This might work for user created keyspaces but might not work for system
keyspace
On Mon, Jul 8, 2013 at 2:07 PM, Robert Coli wrote:
> On Fri, Jul 5, 2013 at 7:54 PM, srmore wrote:
>
>> RF of old
On Fri, Jul 5, 2013 at 7:54 PM, srmore wrote:
> RF of old and new cluster is the same RF=3. Keyspaces and schema info is
> also same.
>
You have a cluster where RF=3 and N=2? Does it.. work?
What are the tokens of old and new nodes?
>>
> tokens for old cluster ( 2-node )
>
If RF=N or RF>N, you
On Fri, Jul 5, 2013 at 6:08 PM, Robert Coli wrote:
> On Thu, Jul 4, 2013 at 10:03 AM, srmore wrote:
>
>> We are planning to move data from a 2 node cluster to a 3 node cluster.
>> We are planning to copy the data from the two nodes (snapshot) to the new 2
>> nodes and hoping that Cassandra will
On Thu, Jul 4, 2013 at 10:03 AM, srmore wrote:
> We are planning to move data from a 2 node cluster to a 3 node cluster. We
> are planning to copy the data from the two nodes (snapshot) to the new 2
> nodes and hoping that Cassandra will sync it to the third node. Will this
> work ? are there any
You should run a nodetool repair after you copy the data over. You could
also use the sstable loader, which would stream the data to the proper node.
On Thu, Jul 4, 2013 at 10:03 AM, srmore wrote:
> We are planning to move data from a 2 node cluster to a 3 node cluster. We
> are planning to co
We are planning to move data from a 2 node cluster to a 3 node cluster. We
are planning to copy the data from the two nodes (snapshot) to the new 2
nodes and hoping that Cassandra will sync it to the third node. Will this
work ? are there any other commands to run after we are done migrating,
like
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