min-nr-of-members not working?

[Raymond Roestenburg]

(Copy from gitter)

Hey guys, I don’t think 'min-nr-of-members’ in cluster works anymore, I’ve got an example where I would expect the registerOnMemberUp to not get called until two ‘worker’ role nodes are up, but it gets called anyway. Example is here at https://github.com/RayRoestenburg/akka-in-action/tree/master/chapter-cluster.

I you would like to try:

run sbt assembly, start a 'seed' with

java -DPORT=2551 -Dconfig.resource=/seed.conf -jar target/words-node.jar

And a 'master’ with

java -DPORT=2554 -Dconfig.resource=/master.conf -jar target/words-node.jar

Since worker.min-nr-of-members = 2 is set, I would expect the master not to get up, but it does.

(Am I doing something wrong?)

Cheers,

Ray

[Patrik Nordwall]

I have verified that it works as expected with the akka-sample-cluster-scala.

I think the problem is that you have not defined the same min-nr-of-members in all config files. seed.config only contains seed.min-nr-of-members

/Patrik

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

[Raymond Roestenburg]

Thanks Patrik, I'll try that.

[Raymond Roestenburg]

That does not seem to solve the issue, I'll check out the akka-sample-cluster-scala to see what you're doing differently there..

[Patrik Nordwall]

The sample doesn't have those settings, but i added them for two roles and I could see from the MemberUp logging that it was working

[Raymond Roestenburg]

Ok I'll have a look, even if I set all the confs to the same minimum of 2 worker nodes, the master starts up when there are no worker nodes yet.