A question to nodetool removenode command

["Lu, Boying" <Bo...@emc.com>]

Hi, All,

We have a Cassandra 2.0.7 running in three connected DCs, say DC1, DC2 and DC3.

DC3 is powered off, so we run  'nodetool removenode' command on DC1 to remove all nodes of DC3.
Do we need to run the same command on DC2?

Thanks

Boying

RE: A question to nodetool removenode command

["Lu, Boying" <Bo...@emc.com>]

Thanks a lot ☺

From: Mark Reddy [mailto:mark.reddy@boxever.com]
Sent: 2014年8月14日 18:02
To: user@cassandra.apache.org
Subject: Re: A question to nodetool removenode command

Hi,

Gossip will propagate to all nodes in a cluster. So if you have a cluster spanning DC1, DC2 and DC3 and you then remove all nodes in DC3 via nodetool removenode from a node in DC1, all nodes in both DC1 and DC2 will be informed of the nodes removal so no need to run it from a node in DC2.


Mark

On Thu, Aug 14, 2014 at 10:20 AM, Lu, Boying <Bo...@emc.com>> wrote:
Hi, All,

We have a Cassandra 2.0.7 running in three connected DCs, say DC1, DC2 and DC3.

DC3 is powered off, so we run  ‘nodetool removenode’ command on DC1 to remove all nodes of DC3.
Do we need to run the same command on DC2?

Thanks

Boying

Re: A question to nodetool removenode command

[Mark Reddy <ma...@boxever.com>]

Hi,

Gossip will propagate to all nodes in a cluster. So if you have a cluster
spanning DC1, DC2 and DC3 and you then remove all nodes in DC3 via nodetool
removenode from a node in DC1, all nodes in both DC1 and DC2 will be
informed of the nodes removal so no need to run it from a node in DC2.


Mark


On Thu, Aug 14, 2014 at 10:20 AM, Lu, Boying <Bo...@emc.com> wrote:

> Hi, All,
>
>
>
> We have a Cassandra 2.0.7 running in three connected DCs, say DC1, DC2 and
> DC3.
>
>
>
> DC3 is powered off, so we run  ‘nodetool removenode’ command on DC1 to
> remove all nodes of DC3.
>
> Do we need to run the same command on DC2?
>
>
>
> Thanks
>
>
>
> Boying
>