In a cluster of 9 nodes , one node became unresponsive ( node1) where I am able to cqlsh into the node but in other nodes nodetool status output is showing down for node1.
So executed nodetool flush command just a troubleshooting step. For few mins node came up and again went down but got below error for flush command. What does this error mean?
java.util.concurrent.TimeoutException: Timeout while waiting for workers when flushing pool <keyspace>.<table_name> Index; current timeout is 300000 millis, consider increasing it, or reducing load on the node. Failure to flush may cause excessive growth of Cassandra commit log.