Hi,
okay to stop all resources is fine. But it needs some scripting to run
that at once in an automatic way.
Would be really nice to have that as cluster command in HA or as hb_gui
feature already available. Or just a switch to enable/disable failover
for mainteance purpose.
Best regards,
Danny
Thomas Glanzmann wrote:
Hello Danny,
are there any other commands or tools besides of crm_standby which can
be used for HA cluster node maintenance? I wonder how you can
shutdown all the nodes of your cluster properly without initiating
failovers. What do you recommend to do in such case? I could run
crm_standby on all nodes at the same time, but in fact they don't run
exactly at the same time. And I can only do it for a certain node, not
for the whole cluster. Or is it cluster-wide possible somehow?
you could set the resources to ,,stopped'':
crm_resource -r ms-drbd0 -v 'stopped' --meta -p target_role
for each resource and than call ,,/etc/init.d/heartbeat stop'' on each
node. There must be also a way to tell the cluster to stop everything by
changing the default policy. But I am to tired to look it up.
or something like this. However for me, I don't want to stop my cluster,
I want to take one node offline for updates. Than the other. Normally I
do that through ,,/etc/init.d/heartbeat stop''.
Or you could wipe the cib using the following command:
# Wipe old content (Attention don't do that during production it gets
# your service down: cibadmin -E)
I assume you have backed up your cib somewhere that you can load it
again with:
cibadmin -U -x /path/to/cib.xml
I shut down my test clusters normally by calling ,,/etc/init.d/heartbeat
stop'' on each node and wait.
Thomas
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