Acked-by: Han Zhou <[email protected]> On Fri, May 8, 2020 at 2:00 PM Mark Michelson <[email protected]> wrote:
> We had a user express confusion about the state of a cluster after using > cluster/leave. The user had a three server cluster and used > cluster/leave to remove two servers from the cluster. The user expected > that the single server left would not function since the quorum of two > servers for a three server cluster was not met. > > In actuality, cluster/leave removes the server from the cluster and > alters the cluster size in the process. Thus the single remaining server > continued to function since quorum was reached. > > This documentation change makes it a bit more explicit that > cluster/leave alters the size of the cluster and cites the three server > down to one server case as an example. > > Reported-at: https://bugzilla.redhat.com/show_bug.cgi?id=1798158 > Signed-off-by: Mark Michelson <[email protected]> > --- > ovsdb/ovsdb-server.1.in | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/ovsdb/ovsdb-server.1.in b/ovsdb/ovsdb-server.1.in > index 338f3bc29..6667553df 100644 > --- a/ovsdb/ovsdb-server.1.in > +++ b/ovsdb/ovsdb-server.1.in > @@ -347,6 +347,11 @@ until the server has left the cluster. > .IP > Once a server leaves a cluster, it may never rejoin it. Instead, > create a new server and join it to the cluster. > +.IP > +Note that removing the server from the cluster alters the total size > +of the cluster. For example, if you remove two servers from a three > +server cluster, then the "cluster" becomes a single functioning server. > +This does not result in a three server cluster that lacks quorum. > . > .IP "\fBcluster/kick \fIdb server\fR" > Start graceful removal of \fIserver\fR from \fIdb\fR's cluster, like > -- > 2.25.4 > > _______________________________________________ > dev mailing list > [email protected] > https://mail.openvswitch.org/mailman/listinfo/ovs-dev > _______________________________________________ dev mailing list [email protected] https://mail.openvswitch.org/mailman/listinfo/ovs-dev
