Hi, I think share the logs would be helpful to figure out the problem.
Best, Stefan > Am 23.11.2016 um 22:05 schrieb Dominik Safaric <dominiksafa...@gmail.com>: > > Hi all, > > As I’ve been setting up a cluster comprised of three worker nodes and a > master node, I’ve encountered the problem that the JobManager although > running is unreachable. > > The master instance has access using SSH to all worker nodes. The worker > nodes do not however have access via SSH to the master node. Hence, could > this be the reason for the exception being thrown? Interestedly, I keep > getting the same exception even when running as a local cluster. If I try to > connect to the JobManager manually by executing for example bin/flink list I > am however able to connect to the JobManager. > > In regard to other services, such as the state backend configured via > Zookeeper, the master is able to connect to e.g. Zookeeper running on a > different node of the cluster - checked by examining the ZNode created. > > Next, Flink imposes this requirement of SSH when running in cluster mode. > Since the cluster I am running has a VNET configured, could SSH be bypassed > or is it a must? > > Thanks in advance, > Dominik