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https://issues.apache.org/jira/browse/CLOUDSTACK-8751?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15069412#comment-15069412
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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-166838925
@DaanHoogland
Added a test to verify if the routers are getting updated one after the
other.
Test create network with redundant routers ... === TestName:
test_createRvRNetwork | Status : SUCCESS ===
ok
Test create network with non-default guest cidr with redundant routers ...
=== TestName: test_createRvRNetwork | Status : SUCCESS ===
ok
Test create RvR supported network offering ... === TestName:
test_createRvRNetworkOffering | Status : SUCCESS ===
ok
Test redundant router internals ... === TestName:
test_redundantVR_internals | Status : SUCCESS ===
ok
Test stop master RVR ... === TestName: test_01_stopMasterRvR | Status :
SUCCESS ===
ok
Test stop backup RVR ... === TestName: test_02_stopBackupRvR | Status :
SUCCESS ===
ok
Test reboot master RVR ... === TestName: test_03_rebootMasterRvR | Status :
SUCCESS ===
ok
Test reboot backup RVR ... === TestName: test_04_rebootBackupRvR | Status :
SUCCESS ===
ok
Test stop backup RVR and start instance ... === TestName:
test_05_stopBackupRvR_startInstance | Status : SUCCESS ===
ok
Test update network and check if VRs are updated in sequence ... ===
TestName: test_06_updateVRs_in_sequence | Status : SUCCESS ===
ok
----------------------------------------------------------------------
Ran 10 tests in 5941.052s
OK
> 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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