To: "user@cassandra.apache.org"
Subject: Re: Query timeouts after Cassandra Migration
Message from External Sender
So do you advise copying tokens in such cases ? What procedure is advisable ?
Specifically for your case with 3 nodes + RF=3, it won't make a difference so
leave it as it
>
> So do you advise copying tokens in such cases ? What procedure is
> advisable ?
>
Specifically for your case with 3 nodes + RF=3, it won't make a difference
so leave it as it is.
> Latency increased on target cluster.
>
Have you tried to run a trace of the queries which are slow? It will he
Thanks Eric.
So do you advise copying tokens in such cases ? What procedure is advisable
?
Latency increased on target cluster. I’d double check on storage disks but
it should be same.
— Ankit
On Thu, Feb 6, 2020 at 9:07 PM Erick Ramirez wrote:
> I didn’t copy tokens since it’s an identical c
>
> I didn’t copy tokens since it’s an identical cluster and we have RF as 3
> on 3 node cluster. Is it still needed , why?
>
In C*, same number of nodes alone isn't enough. Clusters aren't really
identical unless token assignments are the same. In your case though since
each node has a full copy
Hi Michael,
Thanks for your response.
I didn’t copy tokens since it’s an identical cluster and we have RF as 3 on
3 node cluster. Is it still needed , why?
Don’t see anything in cassandra log as such. I don’t have debugs enabled.
Thanks & Regards,
Ankit
On Thu, Feb 6, 2020 at 1:47 PM Michael
Did you copy the tokens from cluster1 to new cluster2? Same Cassandra
version, same instance type/size? What to the logs say on cluster2 that
look different from the cluster1 norm? There are a number of possible
`nodetool` utilities that may help see what is happening on new cluster2.
Michael
Hi Folks,
I recently migrated Cassandra keyspace data from one Azure cluster (3
Nodes) to another (3 nodes different region) using simple sstable copy.
Post this , we are observing overall response time has increased and
timeouts every 20 mins.
Has anyone faced such in their experiences ?
Do I ne
