Re: 2 nodes marked as '?N' in 5 node cluster

2023-08-17 Thread Bowen Song via user
The first thing to look is the logs, specifically, the /var/log/cassandra/system.log file on each node. 5 seconds time drift is enough to cause Cassandra to fail. You should ensure the time difference between Cassandra nodes is very low by ensure time sync is working correctly, otherwise

2 nodes marked as '?N' in 5 node cluster

2023-08-07 Thread vishnu vanced
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