Hi all, First off all, i'd like to state that we have a "noisy" operational environment where network partitions occur more often than we'd like and certain components (cluster nodes) experience high GC pause times.
That being said, we are facing the following issue with a higher frequency than one would expect: Nodes being marked "Unreachable" by part of / the whole cluster for a period of time (during which there were issues), and failing to get back to "Reachable" even after the transient issue gets resolved. In most cases, most nodes in the cluster that had marked such a node as Unreachable is able to re-establish communication and move their status back to Reachable, but some node(s) fail to do so even though evidence shows that communication with all the rest is trouble free and there is no partition at the network layer that point in time. We deduce the last bit by the fact that the node that's stuck to think that the once problematic node is still Unreachable receives gossip information from it but discards it for obvious reasons (with the message 'Ignoring received gossip from unreachable...'). I should add at this point that no Quarantine takes place in any of these cases and auto-shutdown is disabled. Does anyone have any ideas why this might be happening? By looking at the logs / code, it is as if the offending node by some combination of events stops sending Heartbeats permanently to the nodes that exhibit the issue. -- >>>>>>>>>> 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 firstname.lastname@example.org. Visit this group at https://groups.google.com/group/akka-user. For more options, visit https://groups.google.com/d/optout.