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

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