[jira] [Commented] (CLOUDSTACK-5429) KVM - Primary store down/Network Failure - Hosts attempt to reboot becasue of primary store being down hangs.

["edison su (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CLOUDSTACK-5429?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14025813#comment-14025813 ] 

edison su commented on CLOUDSTACK-5429:
---------------------------------------

It's the default behavior on RHEL: https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Virtualization_Administration_Guide/sect-gracefully-shut-down-guests-libvirt.html

One can change the behavior to shutdown vm, instead of suspend vm, during host shutdown, by modify libvirt-guests, but I think it should be configured by admin, not in cloudstack. 

> KVM - Primary store down/Network Failure - Hosts attempt to reboot becasue of primary store being down hangs.
> -------------------------------------------------------------------------------------------------------------
>
>                 Key: CLOUDSTACK-5429
>                 URL: https://issues.apache.org/jira/browse/CLOUDSTACK-5429
>             Project: CloudStack
>          Issue Type: Bug
>      Security Level: Public(Anyone can view this level - this is the default.) 
>          Components: Management Server
>    Affects Versions: 4.3.0
>         Environment: Build from 4.3
>            Reporter: Sangeetha Hariharan
>            Assignee: edison su
>            Priority: Critical
>             Fix For: 4.4.0
>
>         Attachments: kvm-networkshutdown.png, kvmhostreboot.png, psdown.rar
>
>
> KVM - Primary store down - Hosts attempt to reboot becasue of primary store being down hangs.
> Set up:
> Advanced zone with KVM (RHEL 6.3) hosts.
> Steps to reproduce the problem:
> 1. Deploy few Vms in each of the hosts with 10 GB ROOT volume size , so we start with 10 Vms.
> 2. Create snaposhot for ROOT volumes.
> 3. When snapshot is still in progress , Make the primary storage unavailable for 10 mts.
> This results in the KVM hosts to reboot.
> But reboot of KVM host is not successful.
> It is stuck at trying to unmount nfs mount points.



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