I have a three-node cluster, nodes dnode0, dnode1, and dnode2. Every node
the same seed node configuration as follows:
akka {
cluster {
seed-nodes =
["akka.tcp://data@dnode0:2550","akka.tcp://data@dnode1:2550","data@dnode2:2550"]
}
}
I first start all three nodes to form a cluster. This works fine.
I then repeatedly restart dnode0 (the first listed seed node). In about
10% of the time, dnode0 fails to rejoin the existing cluster, and forms an
island itself instead. This happens on both 2.3.10 and 2.3.14.
This problem does not seem to occur when dnode1 or dnode2 is restarted.
My questions are:
1. Is this behavior a bug? Should dnode0 be able to properly rejoin the
cluster on restarts given the above seed node configuration?
2. Or, do we need to change the seed node configuration on dnode0 for
restarts, such as to remove itself from its own seed node list?
Thanks,
Gary
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