On Thu, Jul 3, 2014 at 4:46 AM, Eugene Dzhurinsky <jdeve...@gmail.com>
wrote:

> Hello!
>
> I have the scenario when the only one seed node is configured.
>
> If this node is not reachable  due to a network problem - then after the
> connection is re-established, it does not re-join the cluster. In other
> words, the rest of nodes don't know about seed node anymore.
>

So you had one cluster consisting of all nodes, and then a network split
caused it to be split into two separate clusters?
That does not really have anything to do with seed nodes. Seed nodes are
only used as initial contact points when joining new nodes.

The split into two clusters must be because of downing of unreachable
nodes. Perhaps you use auto-downing?
If you didn't down the nodes they would have detected each other as
unreachable during the network split, but when network connection is
re-established they would detect each other as reachable again and the
nodes would still all be part of same cluster.


>
> Are there any approaches to tell the rest of cluster to "poll" the seed
> nodes periodically, and if they respond - then "rejoin" the cluster with
> those nodes?
>

An ActorSystem can only be part of one cluster, and only once. Rejoining or
joining of two different clusters are not supported. Then the ActorSystem
must be stopped and started again to join the cluster.

/Patrik


>
> Thanks!
>
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-- 

Patrik Nordwall
Typesafe <http://typesafe.com/> -  Reactive apps on the JVM
Twitter: @patriknw

-- 
>>>>>>>>>>      Read the docs: http://akka.io/docs/
>>>>>>>>>>      Check the FAQ: 
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