mirror of
https://github.com/apache/cloudstack.git
synced 2025-10-26 08:42:29 +01:00
13c81a8ee4
A corner case was found on 4.11.2 for #2493 leading to an infinite loop in state PrepareForMaintenance To prevent such cases, in which failed migrations are detected but still running on the host, this feature adds a new cluster setting host.maintenance.retries which is the number of retries before marking the host as ErrorInMaintenance if migration errors persist. How Has This Been Tested? - 2 KVM hosts, pick one which has running VMs as H - Block migrations ports on H to simulate failures on migrations: iptables -I OUTPUT -j REJECT -m state --state NEW -m tcp -p tcp --dport 49152:49215 -m comment --comment 'test block migrations' iptables -I OUTPUT -j REJECT -m state --state NEW -m tcp -p tcp --dport 16509 -m comment --comment 'test block migrations - Put host H in Maintenance - Observe that host is indefinitely in PrepareForMaintenance state (after this fix it goes into ErrorInMaintenance after retrying host.maintenance.retries times)