Thanks Jochen! On Wednesday, September 30, 2015 at 2:45:44 AM UTC-6, Jochen Schalanda wrote: > > Hi Jesse, > > all Graylog nodes must access and use the same MongoDB database. MongoDB > itself can of course be replicated to achieve a HA setup, see > http://docs.mongodb.org/manual/core/replication-introduction/ for details. > > > Cheers, > Jochen > > On Tuesday, 29 September 2015 23:22:50 UTC+2, Jesse Skrivseth wrote: >> >> Hello all! >> >> I have three nodes, a master and two backend nodes. On the backend nodes, >> it seems that mongo is not replicated since I don't see the graylog DB on >> either node. That makes the master node a single point of failure? If each >> of the three nodes should be able to assume the role of master, what's the >> best way to go about this? Also, when upgrading Graylog versions, should >> the entire cluster be stopped or can each node be upgraded while the rest >> of the cluster is hot? >> >> Thanks! >> >
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