Hi, GridGain checks that each critical worker thread is is alive and updating its heartbeat timestamp. If that is not the case, the worker will be regarded as blocked and GridGain will print a message to the log file. The period of inactivity is specified by the IgniteConfiguration.systemWorkerBlockedTimeout property.
more info here: https://apacheignite.readme.io/docs/critical-failures-handling#section-critical-workers-health-check In your case a communication worker failed [threadName=tcp-comm-worker, blockedFor=932s] Check that your network to make sure that all ports are open and all hosts reachable. Thanks, Alex -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/
