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From Sasha Dolgy <sdo...@gmail.com>
Subject Re: Cassandra nodes on EC2 in two different regions not communicating
Date Wed, 23 Feb 2011 09:25:54 GMT
did you define the other host in the cassandra.yaml ?  on both servers ....
they need to know about each other

On Wed, Feb 23, 2011 at 10:16 AM, Himanshi Sharma
<himanshi.sharma@tcs.com>wrote:

>
> Thanks Dave but I am able to telnet to other instances on port 7000
> and when i run  ./nodetool --host
> ec2-50-18-60-117.us-west-1.compute.amazonaws.com  ring... I can see only
> one node.
>
> Do we need to configure anything else in Cassandra.yaml or Cassandra-env.sh
> ???
>
>
>
>
>
>
>
>   From: Dave Viner <daveviner@gmail.com> To: user@cassandra.apache.org Cc: Himanshi
> Sharma <himanshi.sharma@tcs.com> Date: 02/23/2011 11:36 AM Subject: Re:
> Cassandra nodes on EC2 in two different regions not communicating
> ------------------------------
>
>
>
> If you login to one of the nodes, can you telnet to port 7000 on the other
> node?
>
> If not, then almost certainly it's a firewall/Security Group issue.
>
> You can find out the security groups for any node by logging in, and then
> running:
>
> % curl "*http://169.254.169.254/latest/meta-data/security-groups*<http://169.254.169.254/latest/meta-data/security-groups>
> "
>
> Assuming that both nodes are in the same security group, ensure that the SG
> is configured to allow other members of the SG to communicate on port 7000
> to each other.
>
> HTH,
> Dave Viner
>
>
> On Tue, Feb 22, 2011 at 8:59 PM, Himanshi Sharma <*himanshi.sharma@tcs.com
> * <himanshi.sharma@tcs.com>> wrote:
>
> Hi,
>
> I am new to Cassandra. I m running Cassandra on EC2. I configured Cassandra
> cluster on two instances in different regions.
> But when I am trying the nodetool command with ring option, I am getting
> only single node.
>
> How to make these two nodes communicate with each other. I have already
> opened required ports. i.e 7000, 8080, 9160 in respective
> security groups. Plz help me with this.
>
> Regards,
> Himanshi Sharma
>
>
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-- 
Sasha Dolgy
sasha.dolgy@gmail.com

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