5bcca13f4a
Sometimes in case of HA routers it may happend that keepalived will set status of router to MASTER before neutron-keepalived-state-change daemon will spawn "ip monitor" to monitor changes of IPs in router's namespace. In such case neutron-keepalived-state-change process will never notice that keepalived set router to be MASTER and L3 agent will not be notified about that so router will not be configured properly. To avoid such race condition neutron-keepalived-state-change will now check if VIP address is already configured on ha interface before it will spawn "ip monitor". If it is already configured by keepalived, it will notify L3 agent that router is set to MASTER. Change-Id: Ie3fe825d65408fc969c478767b411fe0156e9fbc Closes-Bug: #1818614 (cherry picked from commit 8fec1ffc833eba9b3fc5f812bf881f44b4beba0c)
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