On Wednesday, November 5, 2014 1:01:21 AM UTC+3:30, Björn Antonsson wrote:
>
> Hi,
>
> So the way the cluster works currently is that the unreachable node has to
> be removed (by doing a down on it) before a system with the same
> address/port is allowed to join the cluster. If you have the auto-down set
> to a low value and wait with restarting the "crashed" node until you see
> the master setting it to DOWN, does it work then?
>
No, it doesn't even if master marks crashed node as down and remove it,
when crashed node is restarted it complains that it is quarantined by the
remote system,... and this system should be restarted!!!!! :(
> The thing that seems weird in your log is that 127.0.0.1:2552 suddenly
> marks the node as reachable again instead of just downing it. If the old
> node had been downd and removed correctly, then the new one with the same
> address/port should be allowed to connect. There might be an issue with the
> failure detector and a missmatch between addresses and unique addresses
> (address:port:uid).
>
> Would it be possible for you to package up a minimal project that we can
> use to reproduce this?
>
I am using akka's Bootable, with one ClusterListener implementation in each
process. (I'm not sure if I'm right but I somehow remember my tests of the
same case was working earlier in my project, however I can't track back
changes to see what has caused this! ) I'll make an empty one
> B/
>
> On 4 November 2014 at 14:57:38, Behrad Zari (beh...@gmail.com
> <javascript:>) wrote:
>
> In my three node cluster (akka 2.3.6 - scala 2.10.4) with the config below
>
> cluster {
> seed-nodes = [
> "akka.tcp://adp@127.0.0.1:2552" // using one of the three as seed
> node
> ]
> auto-down-unreachable-after = 120s
> }
>
> I `Ctrl+C` one of my nodes so that simulate some crash/termination I see
>
> Remoting - Tried to associate with unreachable remote address [akka.tcp://
> adp@127.0.0.1:2553]. Address is now gated for 5000 ms, all messages to
> this address will be delivered to dead letters. Reason: Connection refused:
> /127.0.0.1:2553
>
> but when I restart the process it is ignored to join and they cannot
> interoperate, and I continue to see the following message:
>
> Cluster Node [akka.tcp://adp@127.0.0.1:2552] - Existing member
> [UniqueAddress(akka.tcp://adp@127.0.0.1:2553,392261992)] is trying to
> join, ignoring
> 13:36:18.964UTC INFO [adp-akka.actor.default-dispatcher-2]
> Cluster(akka://adp) - Cluster Node [akka.tcp://adp@127.0.0.1:2552] -
> Marking node(s) as REACHABLE [Member(address = akka.tcp://
> adp@127.0.0.1:2553, status = Up)]
> Cluster Node [akka.tcp://adp@127.0.0.1:2552] - Existing member
> [UniqueAddress(akka.tcp://adp@127.0.0.1:2553,392261992)] is trying to
> join, ignoring
> Cluster Node [akka.tcp://adp@127.0.0.1:2552] - Existing member
> [UniqueAddress(akka.tcp://adp@127.0.0.1:2553,392261992)] is trying to
> join, ignoring
> Cluster Node [akka.tcp://adp@127.0.0.1:2552] - Existing member
> [UniqueAddress(akka.tcp://adp@127.0.0.1:2553,392261992)] is trying to
> join, ignoring
> ...
>
>
>
> I'd expect cluster to reconnect after one of my node restarts :(
> when I decrease "auto-down-unreachable-after" my crashed node is down in
> my seed node, so it is quarantined and won't be able to rejoin after
> startup until both node restart.
> I doubt what is the correct pattern for per node restarts in a clustered
> deployment!?
> --
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>
> --
> Björn Antonsson
> Typesafe <http://typesafe.com/> – Reactive Apps on the JVM
> twitter: @bantonsson <http://twitter.com/#!/bantonsson>
>
>
--
>>>>>>>>>> Read the docs: http://akka.io/docs/
>>>>>>>>>> Check the FAQ:
>>>>>>>>>> http://doc.akka.io/docs/akka/current/additional/faq.html
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