Yesterday i upgraded the server to 2.11.1 from 2.9.1 and added the same version client to the repos. It was installed on three MongoDB servers this morning at 06:10
At that time i see some graphs have stopped working, for example under MongoDB ReplSet Summary, Max Member Ping Time, OpLog Recovery Window and Max Heartbeat Time have no data after 06:10 and Replication Lag in the ReplicaSet is now 136 years . But other graphs look ok.
Can’t see anything obvious in the logs and have tried restarting the PMm services on the nodes but no result.