Sheng Yang created CLOUDSTACK-6989:
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Summary: 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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