PROPOSAL: stop recording 'executing update-status hook'

[Tim Penhey]

Hi folks,

Currently juju will update the status of any hook execution for any unit 
to show that it is busy doing things. This was all well and good until 
we do things based on time.

Every five minutes (or so) each unit will have the update-status hook 
executed to allow the unit to set or update the workload status based on 
what is currently going on with that unit.

Since all hook executions are stored, this means that the 
show-status-log will show the unit jumping from executing update-status 
to ready and back every five minutes.

The proposal is to special case the update-status hook and show in 
status (or the status-log) that the hook is being executed. debug-log 
will continue to show the hook executing if you are looking.

This will reduce noise in the status-log, simplify some of our code 
around dealing with status-log, and reduce load on controllers looking 
after hundreds or thousands of units.

Is anyone opposed to this change?

Tim