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From Batranut Bogdan <>
Subject Re: Adding new node to cluster
Date Tue, 17 Feb 2015 20:27:37 GMT
I use SimpleSnitch. All the nodes are in the sane datacenter. Not sure if all are in the same

     On Tuesday, February 17, 2015 8:53 PM, "" <>

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ol {margin-bottom:0in;}#yiv3880239437 ul {margin-bottom:0in;}#yiv3880239437 What snitch are
you using? You may need to do some work on your topology file (or rackdc) to make sure you
have the topology you want. Also, it is possible you may need to restart OpsCenter agents
and/or your browser to see the nodes represented properly in OpsCenter.       Sean Durity
– Cassandra Admin, Home Depot    From: Batranut Bogdan []
Sent: Tuesday, February 17, 2015 10:20 AM
Subject: Re: Adding new node to cluster    Hello,    I know that UN is good, but what troubles
me is the addition of the own node's ip in it's yaml seeds section.    On Tuesday, February
17, 2015 3:40 PM, Reynald Bourtembourg <> wrote:    Hi

In nodetool status:    
   - UJ: means your node is Up and Joining
   - UN: means your node is Up and in Normal state
 UN in nodetool is good ;-)    On 17/02/2015 13:56, Batranut Bogdan wrote: 
Hello all,    I have an existing cluster. When adding a new node, I saw that Opscenter saw
the node in an unknown cluster. In the yaml, the cluster name is the same. So i have stopped
the node and added it's ip address in the list of seeds. Now Opscenter sees my node. But nodetool
status now sees it as UN, instead of UJ when it first started. One other mension is that even
if I stop the node, remove it's ip from the list of seeds, Opscenter sees the node in the
known clustre but nodetool sees it as UN. I am not sure what the implications of adding a
node's ip in it's seed list are and I think that for the existing nodes I have might done
the same. Eg. started with it's ip in the seed list but after removing it and having to restart
the nodes for whatever reason, I did not see any changes.    Is my cluster ok, or what do
I need to do to bring the cluster to a good state?    Thank you. 

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