[Engine-devel] SSH Soft Fencing
Martin Perina
mperina at redhat.com
Mon Jul 1 08:23:12 UTC 2013
So let me summarize it:
We have come to agreement in those questions:
1) SSH Soft Fencing logic should be extracted from VdsNotRespondingTreatment
command to its own SshSoftFencingCommand
2) VdsNotRespondingCommand should be refactored so it's not inherited from
VdsRestartCommand, but it should run SshSoftFencingCommand
or VdsRestartCommand based on defined fencing flow
These questions has not been resolved yet:
3) Should SSH Soft Fencing be executed also for hosts without PM configured?
4) Should SSH Soft Fencing execution for hosts without PM configured be enabled
by default and admin can turn off these feature using configuration options
SshSoftFencingWithoutPmEnabled (or something like that)?
5) Should SshSoftFencingWithoutPmEnabled be a global option or a cluster wide
option (can be turned off for specific cluster version) or a VDS option
(it can be turned off for each host)?
Personally I would suggest:
ad 3) Yes, SSH Soft Fencing should be executed also for hosts without PM configured
ad 4) Yes, SSH Soft Fencing for hosts without PM configured should be enabled by default
ad 5) I don't see any significant reason why someone would like to turn off SSH Soft Fencing
for hosts without PM configured. But if someone would like to do that, I think
he would like to turn it off only for specific hosts, so VDS level option makes sense
for me
Martin
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