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https://issues.apache.org/jira/browse/CLOUDSTACK-6989?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sheng Yang resolved CLOUDSTACK-6989.
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Resolution: Fixed
> Redunant virtual router(RvR): When time synced by ntpd, RvR may result in
> FAULT state
> -------------------------------------------------------------------------------------
>
> Key: CLOUDSTACK-6989
> URL: https://issues.apache.org/jira/browse/CLOUDSTACK-6989
> Project: CloudStack
> Issue Type: Bug
> Security Level: Public(Anyone can view this level - this is the
> default.)
> Components: Virtual Router
> Affects Versions: 4.3.0, 4.4.0
> Reporter: Sheng Yang
> Assignee: Sheng Yang
> Priority: Critical
> Fix For: 4.4.0
>
>
> ntpd in VR can change time backward to sync with remote NTP server. But the
> check_heartbeat.sh for keepalived process in RvR depends on time to know if
> keepalived keeps writing to heartbeat file. ntpd rewinds the time result in
> check_heartbeat.sh misjudge the situation thus stop the keepalived process.
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