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Posted to user@cassandra.apache.org by Carlos Alvarez <cb...@gmail.com> on 2013/11/18 19:28:51 UTC
Adding nodes to a cluster and 2 minutes rule
Hi.
Here
http://www.datastax.com/documentation/cassandra/1.2/webhelp/cassandra/operations/ops_add_node_to_cluster_t.html
says
that it is needed to wait 2 minutes between adding nodes.
I was trying to figure out why, and how to check if after 2 minutes the
conditions to add more nodes are met or I have to wait more... any clues?
Thanks!
Carlos.
Re: Adding nodes to a cluster and 2 minutes rule
Posted by Robert Coli <rc...@eventbrite.com>.
On Mon, Nov 18, 2013 at 10:28 AM, Carlos Alvarez <cb...@gmail.com>wrote:
> Here
> http://www.datastax.com/documentation/cassandra/1.2/webhelp/cassandra/operations/ops_add_node_to_cluster_t.html says
> that it is needed to wait 2 minutes between adding nodes.
>
> I was trying to figure out why, and how to check if after 2 minutes the
> conditions to add more nodes are met or I have to wait more... any clues?
>
Why includes : https://issues.apache.org/jira/browse/CASSANDRA-2434
=Rob
Re: Adding nodes to a cluster and 2 minutes rule
Posted by Carlos Alvarez <cb...@gmail.com>.
Thank you very much. I'll try to find the code.
Carlos.
On Thu, Nov 21, 2013 at 4:35 AM, Aaron Morton <aa...@thelastpickle.com>wrote:
> Of the top of my head there are some delays in the code do with schema
> synchronisation and bootstrapping. I’m not sure if it adds up to two
> minutes but it sounds ok. But the two minute window would allow a new node
> to startup, join, sync the schema and start the bootstrap process.
>
>
> I was trying to figure out why, and how to check if after 2 minutes the
> conditions to add more nodes are met or I have to wait more... any clues?
>
> If you see the new node as JOINING state ( cannot remember what that is in
> nodetool status) you should be ok to go.
>
> Cheers
>
>
> -----------------
> Aaron Morton
> New Zealand
> @aaronmorton
>
> Co-Founder & Principal Consultant
> Apache Cassandra Consulting
> http://www.thelastpickle.com
>
> On 19/11/2013, at 7:28 am, Carlos Alvarez <cb...@gmail.com> wrote:
>
> Hi.
>
> Here
> http://www.datastax.com/documentation/cassandra/1.2/webhelp/cassandra/operations/ops_add_node_to_cluster_t.html says
> that it is needed to wait 2 minutes between adding nodes.
>
> I was trying to figure out why, and how to check if after 2 minutes the
> conditions to add more nodes are met or I have to wait more... any clues?
>
> Thanks!
> Carlos.
>
>
>
--
Tal vez hubo un error en la grafía. O en la articulación del Sacro Nombre.
Re: Adding nodes to a cluster and 2 minutes rule
Posted by Aaron Morton <aa...@thelastpickle.com>.
Of the top of my head there are some delays in the code do with schema synchronisation and bootstrapping. I’m not sure if it adds up to two minutes but it sounds ok. But the two minute window would allow a new node to startup, join, sync the schema and start the bootstrap process.
> I was trying to figure out why, and how to check if after 2 minutes the conditions to add more nodes are met or I have to wait more... any clues?
If you see the new node as JOINING state ( cannot remember what that is in nodetool status) you should be ok to go.
Cheers
-----------------
Aaron Morton
New Zealand
@aaronmorton
Co-Founder & Principal Consultant
Apache Cassandra Consulting
http://www.thelastpickle.com
On 19/11/2013, at 7:28 am, Carlos Alvarez <cb...@gmail.com> wrote:
> Hi.
>
> Here http://www.datastax.com/documentation/cassandra/1.2/webhelp/cassandra/operations/ops_add_node_to_cluster_t.html says that it is needed to wait 2 minutes between adding nodes.
>
> I was trying to figure out why, and how to check if after 2 minutes the conditions to add more nodes are met or I have to wait more... any clues?
>
> Thanks!
> Carlos.