Re: [jgroups-users] Question on Nodes Dropping from Cluster and not Merging back !!
Questions/problems related to using JGroups <[email protected]>
| Newsgroups | gmane.comp.java.javagroups.general |
|---|---|
| Message-ID | <[email protected]> |
Hi Pooja, On 24/08/16 20:09, Questions/problems related to using JGroups wrote: > Hi Bela, > > Following is the observation in Version jgroups-3.3.5.final.jar and with > merge2 running. Haven't you switched to MERGE3 yet? :-) > In a system running with 34 nodes, 3 of the Nodes started dropping > messages complaining that Logical Address cache does not contain all > entries and then it does keep sending logical address cache fetch > request continuously after this. Right, this is as it should be, but the entries should be received after some time... aren't they? Which transport:discovery protocols are you running? TCP:TCPPING? UDP:PING? > The Coordinator creates a new view not containing these 3 Nodes. and but > obvious this view Update never makes it to these 3 Nodes and they are > stuck with a very old snapshot of the view. > After this event, I do see a trace in Coordinator dropping messages from > these 3 Nodes. > > I guess these must be messages to get logical address cache. > > As a result of above, these 3 Nodes are never able to Merge back to the > view. > > the question I have is: Shouldn't Merge2 keep pinging missing nodes for > Discovery and again merge them? I know MERGE3 does for sure. But this seems more like a discovery or even perhaps a transport issue. If you use TCPPING, are all members listed in initial_hosts? > and Is this a known issue? > > Thanks > Pooja > > ------------------------------------------------------------------------ > View this message in context: Question on Nodes Dropping from Cluster > and not Merging back !! > <http://jgroups.1086181.n5.nabble.com/Question-on-Nodes-Dropping-from-Cluster-and-not-Merging-back-tp11223.html> > Sent from the JGroups - General mailing list archive > <http://jgroups.1086181.n5.nabble.com/JGroups-General-f3.html> at > Nabble.com. > > > ------------------------------------------------------------------------------ > > > > _______________________________________________ > javagroups-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/javagroups-users > -- Bela Ban, JGroups lead (http://www.jgroups.org) ------------------------------------------------------------------------------