[Linux-cluster] MySQL Failover / Failback
Robert Gil
Robert.Gil at americanhm.com
Fri Jun 1 14:18:49 UTC 2007
I am curious if anyone knows the best practices for this? Several use
cases include
Note: We are choosing to use a vip for the two nodes to make the
failover change transparent to the application side.
1) Node 1 (master) dies
-How do we enable "sticky" failover so that it does not then
fail back to Node 1
-Is Node 2 active all the time or is the service completely shut
off? And if its off, how would replication happen?
-How do failover domains work in this case?
2) Node 2 (Master) Node 1 recovered
-How does replication continue again?
-How does the master slave relationship change? Is this
automated, or does it require manual intervention? Should we be using
DRDB?
3) Node 1 (master) Node 2 (slave) - network connectivity dies on node 1
-There is an IP resource available, but how does this monitor
and handle failover?
-How can I move the vip in the event of a failure? Do I need to
manually script this?
With the vip failover, do I attach the vip resource to the mysql
resource in the failover domain for those two nodes? What happens if I
do this?
Thanks,
Robert Gil
Linux Systems Administrator
American Home Mortgage
Phone: 631-622-8410
Cell: 631-827-5775
Fax: 516-495-5861
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