Hi All, I am very new to Cassandra. I have a 5 nodes cluster setup in Centos servers for our internal team testing, couple of days ago our network team has asked us to stop 3 of the nodes let's say C1,C2,C3 for OS patching activity. After the activity I started the nodes again but now interestingly in C1 node it was showing as C2 node was down and in C2 node it was showing C1 as down. But in remaining all three nodes everything is UN.i have tried disabling gossip and enabling it. Restarting all the nodes nothing changed. So I stopped this cluster and tried to build freshly. But C1 and C2 only join the cluster if other node is not present. So I first added C1 to the cluster and C2 only joins when I mention it as seed node. Now in C1 nodetool status C2 is showing as '?N' and vice-versa. But in other nodes showing all as 'UN'. I have checked connectivity between all the servers and everything is fine. NTP in the three stopped servers differs by 5 secs, could that be the problem? But C3 node is not showing any issues.
Due to this while creating schemas and getting errors like schema version mismatch repairs are failing. Can anyone give any solution as to how this can be fixed? Thanks! P.S are there any telegram/whatsapp groups for Cassandra? Regards Vishnu
