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https://issues.apache.org/jira/browse/CLOUDSTACK-803?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13545637#comment-13545637
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Koushik Das commented on CLOUDSTACK-803:
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One way to verify the issue:
- Setup an advanced zone and add XS host
- Create a VM
- Unplug network cable of XS host
- In debugger verify that investigators cannot determine host state (returns
'null') and then tries to trigger HA
> HA gets triggered even when the host investigator is unable to determine the
> state of the host
> ----------------------------------------------------------------------------------------------
>
> Key: CLOUDSTACK-803
> URL: https://issues.apache.org/jira/browse/CLOUDSTACK-803
> Project: CloudStack
> Issue Type: Bug
> Security Level: Public(Anyone can view this level - this is the
> default.)
> Components: Management Server
> Affects Versions: pre-4.0.0, 4.0.0
> Reporter: Koushik Das
> Assignee: Koushik Das
> Fix For: 4.0.2
>
>
> CS tries to do HA on VMs if it finds that the host on which they are running
> is down. HA should only happen when CS is able to determine (host
> investigators return status as 'Down') that host is down. Currently due to a
> bug in code even if the hosts investigators are unable to determine state
> (returns 'null'), HA gets triggered.
> This results in unnecessary HA of VMs.
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