Thanks everyone for your responses.
On Thu, May 12, 2011 at 1:18 AM, Sylvain Lebresne wrote:
> On Thu, May 12, 2011 at 1:58 AM, Anurag Gujral
> wrote:
> > Hi All,
> > I am testing network topology strategy in cassandra I am
> using
> > two nodes , one node each in different data cen
On Thu, May 12, 2011 at 1:58 AM, Anurag Gujral wrote:
> Hi All,
> I am testing network topology strategy in cassandra I am using
> two nodes , one node each in different data center.
> Since the nodes are in different dc I assigned token 0 to both the nodes.
> I added both the nodes a
When creating a multi DC deployment tokens should be evenly distributed in
*each* dc, see this recent discussion for an example
http://www.mail-archive.com/user@cassandra.apache.org/msg12975.html (I'll also
update the wiki when I get time, making a note now) But no two nodes in the
global ring c
Yeah, Narendra is correct.
If you have 2 nodes, one in each data center, use RF=2 and do reads and
writes with either level ONE or QUORUM (which means 2 in this case).
However, if you had 2 nodes in DC1 and 1 node in DC2, then you could use
RF=3 and use LOCAL_QUORUM for reads and writes.
For wri
My understanding is that the replication factor is for the entire ring. Even
if you have 2 DCs the nodes are part of the same ring. What you get
additionally from NTS is that you can specify how many replicas to place in
each DC.
So RF = 1 and DC1:1, DC2:1 looks incorrect to me.
What is possible
Thanks Sameer for your answer.
I am using two DCs DC1 , DC2 with both having one node each, my
straegy_options values are DC1:1,DC2:1 I am not sure what my RF should be ,
should it be 1 or 2?
Please Advise
Thanks
Anurag
On Wed, May 11, 2011 at 5:27 PM, Sameer Farooqui wrote:
> Anurag,
>
> The Ca
Anurag,
The Cassandra ring spans datacenters, so you can't use token 0 on both
nodes. Cassandra’s ring is from 0 to 2**127 in size.
Try assigning one node the token of 0 and the second node 8.50705917 × 10^37
(input this as a single long number).
To add a new keyspace in 0.8, run this from the C
Hi All,
I am testing network topology strategy in cassandra I am using
two nodes , one node each in different data center.
Since the nodes are in different dc I assigned token 0 to both the nodes.
I added both the nodes as seeds in the cassandra.yaml and I am using
properyfilesnitch
