https://datastax-oss.atlassian.net/browse/JAVA-1002
This one says it's the driver issue,we will have a try. ------------------ Original ------------------ From: "????????????";<2535...@qq.com>; Date: Wed, Jul 26, 2017 04:12 PM To: "user"<user@cassandra.apache.org>; Subject: Timeout while setting keyspace Dear All, We are expericencing a strange issue.Currently we have a Cluster with Cassandra 2.1.13. when the applications start,it will print the following warings.And it takes long time for applications to start. Could you please advise ? 2017-07-26 15:49:20.676 WARN 11706 --- [-] [cluster1-nio-worker-2] com.datastax.driver.core.Connection : Timeout while setting keyspace on Connection[/172.16.42.138:9042-3, inFlight=5, closed=false]. This should not happen but is not critical (it will be retried) 2017-07-26 15:49:20.677 WARN 11706 --- [-] [cluster1-nio-worker-3] com.datastax.driver.core.Connection : Timeout while setting keyspace on Connection[/xxx.16.42.xxx:9042-3, inFlight=5, closed=false]. This should not happen but is not critical (it will be retried) 2017-07-26 15:49:20.676 WARN 11706 --- [-] [cluster1-nio-worker-0] com.datastax.driver.core.Connection : Timeout while setting keyspace on Connection[/xxx.16.42.xxx:9042-3, inFlight=5, closed=false]. This should not happen but is not critical (it will be retried) 2017-07-26 15:49:20.676 WARN 11706 --- [-] [cluster1-nio-worker-1] com.datastax.driver.core.Connection : Timeout while setting keyspace on Connection[/xxx.16.42.xxx:9042-3, inFlight=5, closed=false]. This should not happen but is not critical (it will be retried) 2017-07-26 15:49:32.777 WARN 11706 --- [-] [main] com.datastax.driver.core.Connection : Timeout while setting keyspace on Connection[/172.16.42.113:9042-3, inFlight=1, closed=false]. This should not happen but is not critical (it will be retried) Thanks