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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CLOUDSTACK-10309) VMs with HA enabled, power back on if shutdown from guest OS
Date Wed, 02 May 2018 07:45:00 GMT

    [ https://issues.apache.org/jira/browse/CLOUDSTACK-10309?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16460645#comment-16460645
] 

ASF GitHub Bot commented on CLOUDSTACK-10309:
---------------------------------------------

rhtyd commented on issue #2473: CLOUDSTACK-10309 Add option on if to VM HA power-on a OOB-shut-off-VM
URL: https://github.com/apache/cloudstack/pull/2473#issuecomment-385892299
 
 
   FYI - I've changed PR's base branch to validate change from Travis, and trillian. Once
this is tested and is okay we can move it back to 4.9 branch.
   @blueorangutan package

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> VMs with HA enabled, power back on if shutdown from guest OS
> ------------------------------------------------------------
>
>                 Key: CLOUDSTACK-10309
>                 URL: https://issues.apache.org/jira/browse/CLOUDSTACK-10309
>             Project: CloudStack
>          Issue Type: Improvement
>      Security Level: Public(Anyone can view this level - this is the default.) 
>          Components: Management Server
>    Affects Versions: 4.9.0, 4.10.0.0
>         Environment: KVM
>            Reporter: Sean Lair
>            Priority: Minor
>
> When a user shuts down their VM from the guest OS (and VM HA is enabled), the VM just
powers itself back on.  Our environment is on KVM hosts.
> CloudStack does not know the difference between a VM failing or being shutdown from within
the guest OS.
> This is a major pain point for all our users - especially since they don't pay for VMs
when they are shutoff.  It is not intuitive for end-users to understand why they can't shutdown
VMs from within the guest OS.  Especially when they all come from (non-cloudstack) VMware
and Hyper-V environments where this is not an issue.
> However, if a host fails, we need VM HA to still work.
> This Issue is being tied to a new PR that creates a configuration option "ha.vm.restart.hostup".  With
this option set to false, if CloudStack sees a VM shutdown out-of-band, +*but the host it
was on is still* *onlin*e+, then it won't power it back on.  The logic is that since the
host is online, it was most likely shutdown from the guest OS.
> For when a host actually fails, standard VM HA logic takes over and powers on VMs (with
VM HA enabled) if the host they were on fails.
> If that "ha.vm.restart.hostup" option is true (the default to match current functionality),
it works like always, and even in-guest shutdowns of VMs causes CloudStack to power back on
the VM.
>  



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