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From Anshul Gangwar <>
Subject Re: [DISCUSS][PROPOSAL]missing power state reports from hypervisors on VMs ([BLOCKER]?)
Date Wed, 16 Sep 2015 08:17:25 GMT
Currently we report only PowerOn VMs and do not report PowerOff VMs that's why we consider
Missing and PowerOff as same And that's how most of the code is written for VM sync and each
Hypervisor resource has same understanding. This will effect HA and many more unknown places.
So please do not even consider to merge this change.

So Now coming to bug we can fix that by changing global setting pingInterval to appropriate
value according to hypervisor settings which takes care of these transitional period of missing
report here or can be handled by introducing gracePeriod global setting.


On 16-Sep-2015, at 1:11 PM, Rohit Yadav <<>>

On 16-Sep-2015, at 1:06 pm, Daan Hoogland <<>>

so two questions:
- is this a blocker?

A missing state handler is definitely a corner case, and IMO a blocker (so, for both 4.6.0
and future 4.5.3).

- is the ignoring after logging the appropriate way to handle this?

It may be undesirable for all cases; so either introducing another global setting to control
logic (just log, vs update state in the db vs do any operation?); or simply find out if the
VM is actually running (or any other state) just mark it as running in the DB.

Rohit Yadav
Software Architect, ShapeBlue

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