Hi Tom, I feel this is more an example than a general recommendation. In production we don't usually change weights for a three-node cluster. You may want to change weights in specific configurations only (e.g. 2 nodes in a datacenter and 1 node in another datacenter).
Best, On Sun, Dec 27, 2015 at 2:43 PM Tom Worster <f...@thefsb.org> wrote: > In the Galera docs > <http://galeracluster.com/documentation-webpages/weightedquorum.html#weighted-quorum-for-three-nodes> > I read > > When configuring quorum weights for three nodes, use the following pattern: > > node1: pc.weight = 2 > node2: pc.weight = 1 > node3: pc.weight = 0 > > Under this pattern, killing node2 and node3 simultaneously preserves the > *Primary > Component* > <http://galeracluster.com/documentation-webpages/glossary.html#term-primary-component> > on node1. Killing node1 causes node2 and node3 to become non-primary > components. > > The wording makes it sound as though this is a general recommendation. > But, iiuc, this cluster of 3 nodes has a single point of failure: node1. > How is this desirable? > > Tom > _______________________________________________ > Mailing list: https://launchpad.net/~maria-discuss > Post to : maria-discuss@lists.launchpad.net > Unsubscribe : https://launchpad.net/~maria-discuss > More help : https://help.launchpad.net/ListHelp > -- Guillaume Lefranc Remote DBA Services Manager MariaDB Corporation
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