Trying to register coordinator happens when I remove a node from cluster

[Saleh Khazaei]

Hi,

I'm using Cluster Sharding and sometimes when I restart/stop a node, I see this warning "Trying to register to coordinator at ... but no acknowledgement" even though the mentioned node's status is up. When this error happens the shading actors cannot ask message from each other and lot's of timeouts happen.

Here a screen shot of the error.

I've also looked at the node's statuses, here's the result:

{

"members":[     

{"address": "akka.tcp://nasim-...@192.168.104.113:2552", "roles":["dc-default"],"status": "Up"},

{"address": "akka.tcp://nasim-...@192.168.104.114:2552", "roles":["dc-default"],"status": "Up"},

{"address": "akka.tcp://nasim-...@192.168.104.115:2552", "roles":["dc-default"],"status": "Up"}

],

"unreachable": [] 

}

Any suggestion?

[Patrik Nordwall]

To be able to help we would need a description of the scenario you are trying, step-by-step, and the full log files from all nodes.

Regards,

Patrik

On Tue, Jan 9, 2018 at 3:46 PM, Saleh Khazaei <saleh....@gmail.com> wrote:

Hi,

I'm using Cluster Sharding and sometimes when I restart/stop a node, I see this warning "Trying to register to coordinator at ... but no acknowledgement" even though the mentioned node's status is up. When this error happens the shading actors cannot ask message from each other and lot's of timeouts happen.

Here a screen shot of the error.

I've also looked at the node's statuses, here's the result:

{

"members":[     

{"address": "akka.tcp://nasim-server@192.168.104.113:2552", "roles":["dc-default"],"status": "Up"},

{"address": "akka.tcp://nasim-server@192.168.104.114:2552", "roles":["dc-default"],"status": "Up"},

{"address": "akka.tcp://nasim-server@192.168.104.115:2552", "roles":["dc-default"],"status": "Up"}

],

"unreachable": [] 

}

Any suggestion?

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Patrik Nordwall
Akka Tech Lead
Lightbend -  Reactive apps on the JVM
Twitter: @patriknw