Hi Prateek, No, this is a misunderstanding of how seed-nodes work. The first node in that list MUST be the same node if using the seed-nodes process.
What you did by making each node have it’s own address as the first in their seed node list is form 3 independent clusters. This works as intended; The first node in this list must be the same on all nodes, only for the need of consistency of the initial cluster creation. A node which sees “oh, I’m the first node in the seed nodes list” will join “itself” and form the cluster. This is why the first node in the list is special. The other’s order does not matter; The first one has to be the same though. — Konrad `kto.so` Malawski Akka <http://akka.io> @ Lightbend <http://lightbend.com> On 4 October 2017 at 11:08:31, prateek singhal (prateek.itm...@gmail.com) wrote: Hi, As per the documentation under cluster seed nodes (https://doc.akka.io/docs/ akka/2.5.4/scala/cluster-usage.html#joining-to-seed-nodes), We can start seed node in any sequence, but the node configured as the first element in seed-nodes configuration list must be started when initially starting a cluster. In my case I have 3 servers with following seed-codes configuration Server A : (host1:2552) akka.cluster.seed-nodes = ["akka.tcp://ClusterSystem@host1:2552", "akka.tcp://ClusterSystem@host2:2552", "akka.tcp://ClusterSystem@host3:2552" ] Server B : (host2:2552) akka.cluster.seed-nodes = ["akka.tcp://ClusterSystem@host2:2552", "akka.tcp://ClusterSystem@host3:2552", "akka.tcp://ClusterSystem@host1:2552" ] Server C : (host3:2552) akka.cluster.seed-nodes = ["akka.tcp://ClusterSystem@host3:2552", "akka.tcp://ClusterSystem@host1:2552", "akka.tcp://ClusterSystem@host2:2552" ] First element of seed-nodes list of each server is its own address, In this way i don't have to start particular server first when initially starting a cluster, I can start any of the 3 server of seed-node list in any order irrespective of which one is first element. Configuration for rest of the node in cluster: Server D : (host4:2552) akka.cluster.seed-nodes = ["akka.tcp://ClusterSystem@host1:2552", "akka.tcp://ClusterSystem@host2:2552", "akka.tcp://ClusterSystem@host3:2552" ] Is above configuration and understanding is correct or it will create different cluster island. Thanks, -- >>>>>>>>>> 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 --- You received this message because you are subscribed to the Google Groups "Akka User List" group. To unsubscribe from this group and stop receiving emails from it, send an email to akka-user+unsubscr...@googlegroups.com. To post to this group, send email to akka-user@googlegroups.com. Visit this group at https://groups.google.com/group/akka-user. For more options, visit https://groups.google.com/d/optout. -- >>>>>>>>>> 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 --- You received this message because you are subscribed to the Google Groups "Akka User List" group. To unsubscribe from this group and stop receiving emails from it, send an email to akka-user+unsubscr...@googlegroups.com. To post to this group, send email to akka-user@googlegroups.com. Visit this group at https://groups.google.com/group/akka-user. For more options, visit https://groups.google.com/d/optout.
