msinhore opened a new issue #3231: Intermittent instance URL: https://github.com/apache/cloudstack/issues/3231 ##### ISSUE TYPE * Bug Report ##### COMPONENT NAME ~~~ * Network * Guest Instance ~~~ ##### CLOUDSTACK VERSION ~~~ 4.11.2.0 ~~~ ##### CONFIGURATION * advanced network * vmware 5.5 hypervisor ##### OS / ENVIRONMENT * management server OS: CentOS 7 * VMware guest portgroup in promiscuous mode ##### SUMMARY I got an intermittent issue during the guest instance creation. During the instances boot time, some instances didn't get IP address and have no L2 network communication. Looking around the VR logs files, there are no entry in the dnsmasq.log from instance. I logged in VM as root user and ran dhclient manually but it didn't work. When migrating the instance to another host, the instance got the IP and the dnsmasq logged the request from instance as expected. I suspected about some misconf in the host side, but I discarted this because it happen in both hosts. ##### STEPS TO REPRODUCE ~~~ * Create a VM using API or UI. * Log in as root in the instance. * Check if network interface got an IP address as expected. (this is an intermittent behavior) * Try to get the IP address using the command *dhclient eth0*. * Try to setup the IP address manually and ping the gateway. ~~~ ##### EXPECTED RESULTS ~~~ As it is an intermittent behavior, some instances can't to communicate with network. ~~~
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