I'm trying to run small cluster, just 3 nodes on EC2.
I configured dispatchers and increased threshold for failure detector as
recommended
{
cluster {
use-dispatcher = cluster-dispatcher
failure-detector {
threshold = 12
}
auto-down-unreachable-after = 10s
retry-unsuccessful-join-after = 5s
}
}
cluster-dispatcher {
type = "Dispatcher"
executor = "fork-join-executor"
fork-join-executor {
parallelism-min = 2
parallelism-max = 4
}
}
but even tough my nodes are under light load I observe about 600-800
UNREACHABLE events
WARN a.c.ClusterCoreDaemon: Cluster Node [akka.tcp://
[email protected]:2552] - Marking node(s) as UNREACHABLE
[Member(address = akka.tcp:// [email protected]:2555, status = Up)]
a day, and occasional quarantaines.
I'd be grateful for recommendations about running akka cluster on EC2
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