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https://issues.apache.org/jira/browse/CLOUDSTACK-8751?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15483892#comment-15483892
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ASF subversion and git services commented on CLOUDSTACK-8751:
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Commit 2acb0b7608a9e2a2e9135c558c8e364b3c8eb623 in cloudstack's branch
refs/heads/master from [~rajanik]
[ https://git-wip-us.apache.org/repos/asf?p=cloudstack.git;h=2acb0b7 ]
Merge pull request #866 from bvbharatk/CLOUDSTACK-8751
CLOUDSTACK-8751 minimise downtime of network when network update is in
progress.more info in the bug link below.
https://issues.apache.org/jira/browse/CLOUDSTACK-8751
* pr/866:
Added license headders
Added a test to test update router in sequence
Do not update network if one of the router's state is unknown
CLOUDSTACK-8751 Added tests
CLOUDSTACK-8751
Signed-off-by: Rajani Karuturi <rajani.karut...@accelerite.com>
> 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
> Fix For: 4.10.0.0
>
>
> 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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