Hi Sowrabha,

it looks like you are getting network partitions which together with
"auto-down=on" result in two clusters to be formed. You can find more
information about this situation here
<http://doc.akka.io/docs/akka/2.2.0/scala/cluster-usage.html#Automatic_vs__Manual_Downing>
.

You might want to turn auto-down off and manually or automatically react to
unreachable nodes by restarting some part of the cluster when network has
healed.

On Tue, Aug 25, 2015 at 10:04 PM, Sowrabha Chandrashekar <
[email protected]> wrote:

> Hi,
>
> We  have been  using akka clustering with two seed nodes  and we are
> seeing the behavior where both of  nodes are becoming leader and processing
> at the same time with just few milliseconds time difference.
> If you stop one of them and then restart then things seem to be working
> normal. However after x number of days  it goes into this state again where
> in in both seeds act up as leaders. I have no clue as of now about this
> behavior.
>
> Has any body encountered such issues with akka 2.2.x  version? Any help
> would be appreciated.
>
>
> Thanks
> Sowrabha
>
>
>  We are using the below akka library
>
>     "com.typesafe.akka" %% "akka-agent" % "2.2.0",
>     "com.typesafe.akka" %% "akka-remote" % "2.2.0",
>     "com.typesafe.akka" %% "akka-cluster" % "2.2.0",
>     "com.typesafe.akka" %% "akka-contrib" % "2.2.0"
>
>
> Below is a cluster configuration properties  on each of the seed hostnames
>
> ClusterSystem.akka {
>   actor {
>     provider = "akka.cluster.ClusterActorRefProvider"
>   }
>   loglevel = "INFO"
>   remote {
>     log-remote-lifecycle-events = off
>     netty.tcp {
>           hostname = "hostname1"
>       port = 2551
>     }
>   }
>
>   cluster {
>     seed-nodes = [
>         "akka.tcp://ClusterSystem@hostname1:2551"
>         "akka.tcp://ClusterSystem@hostname2:2551"
>      ]
>
>     auto-down = on
>   }
> }
>
>
> ClusterSystem.akka {
>   actor {
>     provider = "akka.cluster.ClusterActorRefProvider"
>   }
>   loglevel = "INFO"
>   remote {
>     log-remote-lifecycle-events = off
>     netty.tcp {
>           hostname = "hostname2"
>       port = 2551
>     }
>   }
>
>   cluster {
>     seed-nodes = [
>         "akka.tcp://ClusterSystem@hostname1:2551"
>         "akka.tcp://ClusterSystem@hostname2:2551"
>      ]
>
>     auto-down = on
>   }
> }
>
> --
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-- 
Martynas Mickevičius
Typesafe <http://typesafe.com/> – Reactive
<http://www.reactivemanifesto.org/> Apps on the JVM

-- 
>>>>>>>>>>      Read the docs: http://akka.io/docs/
>>>>>>>>>>      Check the FAQ: 
>>>>>>>>>> http://doc.akka.io/docs/akka/current/additional/faq.html
>>>>>>>>>>      Search the archives: https://groups.google.com/group/akka-user
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