Support multi-network clusters
Bug #1204500 reported by
Bernhard Schmidt
This bug affects 1 person
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
Percona XtraDB Cluster moved to https://jira.percona.com/projects/PXC |
New
|
Wishlist
|
Unassigned |
Bug Description
As far as I can tell, Percona/Galera only supports a single network to be used for replication traffic. If that network happens to be down the cluster will split.
Most HA systems (heartbeat, corosync) support and even recommend more than one path between the nodes. They are used simultaniously and the cluster will split only when all paths are down.
Changed in percona-xtradb-cluster: | |
importance: | Undecided → Wishlist |
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This is an interesting idea. On the one hand, you can handle this at a lower level with interface bonding, but at a higher level this should in theory make for a more robust cluster.
Such a feature would allow internal clusters with "bridge" nodes that would act as relays to external networks (say a DR site). Galera can already do this kind of relaying, but I don't know what complexity multiple gcomm networks would introduce (potentially non-trivial).