On Jan 31, 2008, at 7:53 PM, Steve Wray wrote:
Andrew Beekhof wrote:
On Jan 31, 2008, at 1:53 AM, Steve Wray wrote:
Ok I now have cib.xml working but the behavior of the cluster is
still strange.
I took the code from the pingd documentation and inserted it into
the cib.xml as follows:
[snip]
The documentation is not clear on this, but is that the correct
place to insert the code fragment?
Yes.
Cool, I had wondered if I was supposed to use some tool to insert
this; seems a bit odd to manually edit a file that appears to be
automatically updated.
The observed behavior is now that if the passive node loses
network connectivity
you didn't simulate this by unplugging eth0 did you?
The two nodes on this testbed are virtual machines running under
Xen. I can't unplug eth0. I took the network interface down.
Which amounts to the same thing and isn't a good idea.
What you've just done is create a split-brain scenario (try google)
and without stonith enabled is a really good way to corrupt your data.
pingd can only help you when you loose external connectivity - not
when you loose connectivity to the other cluster node(s)
but the active node can contact its ping node then the active node
tries to become passive... but fails as it can't unmount its NFS
filesystem or stop drbd. It relinquishes the floating IP address
though and effectively fails. Kind of the opposite to what I am
after...
_______________________________________________
Linux-HA mailing list
[email protected]
http://lists.linux-ha.org/mailman/listinfo/linux-ha
See also: http://linux-ha.org/ReportingProblems
_______________________________________________
Linux-HA mailing list
[email protected]
http://lists.linux-ha.org/mailman/listinfo/linux-ha
See also: http://linux-ha.org/ReportingProblems
