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Clustered xPLHal
With xPLHal becoming more used and, therefore, more critical to the
operation of HA systems, does anyone think that a failover cluster
arrangement might be useful?
Some of the basics already exist - heartbeats, globals, etc.
I was thinking of an active/passive arrangement where the active
performs the tasks (scripts/determinators) and the passive is in
standby. Along with a heartbeat the active would send the current
values of the Globals. If after a preset period the standby has not
seen the heartbeats it takes over - at the same time announcing it
has become active. This is a typical 'shared none' arrangement with a
single heartbeat channel. Failback would be manual.
Any thoughts?
Merry Christmas!
Lehane
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