Andrew Beekhof escribió:
On Thu, Jun 26, 2008 at 18:14, Adrian Chapela
<[EMAIL PROTECTED]> wrote:
Andrew Beekhof escribió:
On Thu, Jun 26, 2008 at 17:08, Adrian Chapela
<[EMAIL PROTECTED]> wrote:
Hello,
I want to continue talking about this bug
http://developerbugs.linux-foundation.org/show_bug.cgi?id=1927
(It is not a bug... but I still have some doubts)
For some operation, you have specified on_fail=fence.
How can the cluster fence the node if you have stonith turned off?
Yes I have specified fence because I want to stop, poweroff, or any to do
a
failover to another node when a master node fails.
Except we can't because you don't have the stonith-enabled cluster
option set to true.
I don't know how I can activate a stonith. Is
it possible activate
a stonith with heartbeat software ?
http://www.linux-ha.org/ConfiguringStonithPlugins
I think there isn't enough information about configuration ( I think..). I
want to depend off nodes of the cluster only. I think a posibility could be
ssh, but I can't know how. Where is the information about ssh ?
ssh-based stonith, while better than nothing at all IMHO, is still a
really bad idea.
Yes, I execute 'stonith -h' and then I know ssh stonith is a bad idea.
How can I configure an ipmi ? On my servers I have ipmi but on my test
environment no. is it possible to test ipmi without an ipmi interface ??
Yes, you need to wait for 10 minutes _and_ enable stonith.
Without stonith we have no way to clean up after a failed stop.
The problem isn't in stopping operation, is in slaving operation,
In that case, as long as stop can clean up after a failed demote, then
stonith isn't strictly necessary.
What can I do to solve the failed demote ? I need to inform heartbeat when a
master is failed and in this case heartbeat "demotes" the failed master but
it can't be a slave. A failed master in mysql (and I think in other services
as well) can't be a slave, if it fails, it can't be a slave.
If I make a master failed in a valid slave, what do heartbeat then ?
if it fails as a master (or during promote), we'll demote it.
if it fails as a slave (or during demote) we'll stop (and possibly restart) it
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