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user@cassandra.apache.orgmailto: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 only place the tokens
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 are
On Fri, Jul 5, 2013 at 7:54 PM, srmore comom...@gmail.com 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
If RF=N or RFN, 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 rc...@eventbrite.com wrote:
On Fri, Jul 5, 2013 at 7:54 PM, srmore
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,
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 aa...@thelastpickle.comwrote:
This might work for user created keyspaces but might not work for system
keyspace
Leaving the system keyspaces
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
On Thu, Jul 4, 2013 at 10:03 AM, srmore comom...@gmail.com 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
On Fri, Jul 5, 2013 at 6:08 PM, Robert Coli rc...@eventbrite.com wrote:
On Thu, Jul 4, 2013 at 10:03 AM, srmore comom...@gmail.com 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
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
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 comom...@gmail.com wrote:
We are planning to move data from a 2 node cluster to a 3 node cluster. We
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