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https://issues.apache.org/jira/browse/CLOUDSTACK-9782?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15962678#comment-15962678
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ASF GitHub Bot commented on CLOUDSTACK-9782:
--------------------------------------------
Github user rhtyd commented on the issue:
https://github.com/apache/cloudstack/pull/1960
@koushik-das sorry could not get back to you earlier as I was busy with
other work. I've replied on the ML thread to address several queries [1] that
lists the advantages of this host-ha framework over existing building blocks
and I've explained why we needed to implement it. Please have at the reply, if
you still have any reservations let us know on the ML thread, we'll get back to
you.
[1] http://markmail.org/message/k7oaqyv5mzmlvzhx
Note: As stated earlier in the ML thread as well -- *this is not a new VM
HA framework*, the framework implementation is agnostic of the host-specific
HA-provider to allow any custom host-ha plugin to be developed that is specific
to a hypervisor as each hypervisor may have their own specific
tools/infra/algorithms to check resource (disk/vm etc) activities, including
scope for future extentions for other HA-able resources.
> Host HA
> -------
>
> Key: CLOUDSTACK-9782
> URL: https://issues.apache.org/jira/browse/CLOUDSTACK-9782
> Project: CloudStack
> Issue Type: New Feature
> Security Level: Public(Anyone can view this level - this is the
> default.)
> Reporter: Rohit Yadav
> Assignee: Rohit Yadav
> Fix For: Future, 4.11.0.0
>
>
> CloudStack lacks a way to reliably fence a host, the idea of the host-ha
> feature is to provide a general purpose HA framework and implementation
> specific for hypervisor that can use additional mechanism such as OOBM (ipmi
> based power management) to reliably investigate, recover and fencing a host.
> This feature can handle scenarios associated with server crash issues and
> reliable fencing of hosts and HA of VM.
> FS: https://cwiki.apache.org/confluence/display/CLOUDSTACK/Host+HA
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