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https://issues.apache.org/jira/browse/CLOUDSTACK-8751?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15268353#comment-15268353
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ASF GitHub Bot commented on CLOUDSTACK-8751:
--------------------------------------------
Github user bvbharatk commented on the pull request:
https://github.com/apache/cloudstack/pull/866#issuecomment-216466217
rebased with master and moved the db changes to schema481to490
> Minimise VR downtime during network update
> ------------------------------------------
>
> Key: CLOUDSTACK-8751
> URL: https://issues.apache.org/jira/browse/CLOUDSTACK-8751
> Project: CloudStack
> Issue Type: Improvement
> Security Level: Public(Anyone can view this level - this is the
> default.)
> Reporter: Bharat Kumar
> Assignee: Bharat Kumar
>
> Currently we use redundant virtual router enabled networks to prevent network
> outage even if one of the virtual router fails. This is achieved by using
> redundant virtual routers along with VRRP protocol. This has increased the
> network robustness. However updating a network with new network offering
> involves some downtime due to Vr restarts. In case of redundant VR based
> networks we can sequence the network update operations to update the backup
> first and then update the master while master's operations are being handled
> by backup, this way i think we can minimise the downtime.
> Link to FS
> https://cwiki.apache.org/confluence/pages/viewpage.action?pageId=61310469
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