Cassandra one seed node showing out of cluster

2
votes

I have a Cassandra cluster consisting of two 5 nodes with two seed nodes. I have configured it couple of days back and all nodes appeared in the cluster. Today when I checked, I see one of the seed nodes out of cluster. Following is what I see when I do a nodetool status from the seed node enter image description here

When I check status from any other node, it gives the following: enter image description here

I cross verified the configs and everything matches on all 5 nodes in the cluster. I tried multiple restarts and nothing resolved the issue. In the logs I found logs related to some keyspaces in my project, but we have not connected this to anything sofar and it appeared strange.

I am not worried about any data loss, I am trying to restore the seed back in the cluster. Is there any way to do that.

1
cassandracentos
Hi, interesting, not sure if this might have some troubleshooting stackoverflow.com/questions/44954630/… – IronMan
@IronMan, I did not find any troubleshooting that could help in the above link. Thanks for the update – Geo Thomas

1 Answers

1
votes

Please check your " cassandra-topology.properties" if using PropertyFileSnitch or "cassandra.rackdc.properties if using GossipingPropertyFileSnitch. Rack and datacenter configs are read from these files depending on snitch you are using.