Cassandra nodetool status showing "?N" on nodes

1
votes

After come time using cassandra on a 4 nodes cluster, it started to return "connection refused error" when i try to run cqlsh and my nodetool status is showing a "?N" state on the nodes except the node i'm in.

nodetool status

how can i fix it?

1
databasecassandranosql
please check once system.log and debug.log, you may get some clue.. - DEV
it means cassandra does not knwo whether these nodes ar UP or DOWN ..it may be due to corrupt gossip..check logs and also check peers table (all correct peer entries should be present.) - Laxmikant

1 Answers

0
votes

Stop Cassandra service in all nodes. Then start all seed nodes first and then start all non seed nodes.