Thanks Konrad and Patrik. Thanks for clearing my doubt.
On Thursday, 5 October 2017 00:18:55 UTC+5:30, Patrik Nordwall wrote: > > Konrad is right, that is not what you want. > > I’d like to add two things. You don’t have to start the node listed first > in seed-nodes before other nodes. It’s fine to start it afterwards or at > the same time. > > Before joining itself the first seed node tries to join other seed nodes, > and that might be why you see it working with your setup, but it’s asking > for trouble and no advantage. The purpose of trying other nodes is so that > the first can be restarted and join existing cluster. > > /Patrik > ons 4 okt. 2017 kl. 20:11 skrev Konrad “ktoso” Malawski < > konrad....@lightbend.com <javascript:>>: > >> 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...@gmail.com >> <javascript:>) 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+...@googlegroups.com <javascript:>. >> To post to this group, send email to akka...@googlegroups.com >> <javascript:>. >> 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+...@googlegroups.com <javascript:>. >> To post to this group, send email to akka...@googlegroups.com >> <javascript:>. >> 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. 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