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From "Sheng Yang (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CLOUDSTACK-6989) Redunant virtual router(RvR): When time synced by ntpd, RvR may result in FAULT state
Date Wed, 25 Jun 2014 00:03:26 GMT
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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