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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CLOUDSTACK-8751) Minimise VR downtime during network update
Date Sat, 21 Nov 2015 21:58:10 GMT

    [ https://issues.apache.org/jira/browse/CLOUDSTACK-8751?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15020714#comment-15020714
] 

ASF GitHub Bot commented on CLOUDSTACK-8751:
--------------------------------------------

Github user DaanHoogland commented on a diff in the pull request:

    https://github.com/apache/cloudstack/pull/866#discussion_r45551366
  
    --- Diff: server/test/com/cloud/network/element/VirtualRouterElementTest.java ---
    @@ -225,6 +235,62 @@ public void testPrepare() {
     
         }
     
    +    @Test
    +    public void testGetRouters1(){
    --- End diff --
    
    testGetRoutersUnderThisOrTheseCircumstances() ould be a more appropriate name.
    testGetRouters1, testGetRouters2 and testGetRouters3 is not really clear.


> 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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