- https://github.com/apache/cloudstack/pull/2366 -https://github.com/apache/cloudstack/pull/2393
22 янв. 2018 г. 16:32 пользователь "Ivan Kudryavtsev" < kudryavtsev...@bw-sw.com> написал: > Hi, Ozhan. MACs are not removed upon vm removal, but they are overriden > upon vm creation with same ip (or same hostname). It should work fine, > 4.10, 4.11 received 2 PRs to fix several possible bugs. I tested the case > when IP is reused. > > 22 янв. 2018 г. 16:07 пользователь "Özhan Rüzgar Karaman" < > oruzgarkara...@gmail.com> написал: > > Hi; > Today we noticed that one of our new provisioned instance did not get IP > from VR. When we dig into the issue we find that one different mac is > written in dnsmasq.leases file holds new instances IP address. > > We checked this mac address from db and we noticed that this mac is used > for old expunged instance. > > So from this point we realised that when we destroy an instance its mac did > not removed from dnsmasq.leases file so if we use this ip for a new > instance then we have a problem, our instance could not get IP from VR. > > We have one host on our lab environment and its Ubuntu 16.04.3 KVM. Today > we made a HA test and we crashed the host so VR and SystemVM's are rebooted > after we boot host back. I do not think this issue is related to VR reboot > but i like to give information about our environment. > > We need to manage dnsmasq.leases file when we expunge an instance. > > Thanks > Özhan > > Logs are below: > > root@r-4-VM:/var/lib/misc# tail -4 /var/log/dnsmasq.log > Jan 22 08:57:27 dnsmasq-dhcp[850]: not using configured address > 192.168.18.186 because it is leased to 1e:00:25:00:00:b9 > Jan 22 08:57:27 dnsmasq-dhcp[850]: DHCPDISCOVER(eth0) 1e:00:00:00:00:b9 no > address available > Jan 22 08:57:29 dnsmasq-dhcp[850]: not using configured address > 192.168.18.187 because it is leased to 1e:00:80:00:00:ba > Jan 22 08:57:29 dnsmasq-dhcp[850]: DHCPDISCOVER(eth0) 1e:00:9f:00:00:ba no > address available > > root@r-4-VM:/var/lib/misc# cat /etc/dhcphosts.txt > 1e:00:9f:00:00:ba,192.168.18.187,test411rc1mac,736h > 1e:00:00:00:00:b9,192.168.18.186,sil3sameip,733h > 1e:00:96:00:00:bf,192.168.18.192,TolgaTest02,707h > 1e:00:90:00:00:bc,192.168.18.189,TolgaTest,758h > 1e:00:40:00:00:bb,192.168.18.188,test411rc1,750h > root@r-4-VM:/var/lib/misc# cat /var/lib/misc/dnsmasq.leases > 1519339727 1e:00:25:00:00:b9 192.168.18.186 sil3sameip * > 1519331409 1e:00:40:00:00:bb 192.168.18.188 test411rc1 * > 1518921177 1e:00:80:00:00:ba 192.168.18.187 test411rc1mac * > 1518904275 1e:00:90:00:00:bc 192.168.18.189 TolgaTest * > 1519023297 1e:00:96:00:00:bf 192.168.18.192 TolgaTest02 * > > mysql> select name,state,private_mac_address,private_ip_address from > vm_instance; > +---------------+-----------+---------------------+--------------------+ > | name | state | private_mac_address | private_ip_address | > +---------------+-----------+---------------------+--------------------+ > | s-1-VM | Running | 1e:00:34:00:01:00 | 172.16.50.143 | > | v-2-VM | Running | 1e:00:81:00:01:03 | 172.16.50.146 | > | Tolga | Expunging | 1e:00:50:00:00:bc | 192.168.18.189 | > | r-4-VM | Running | 0e:00:a9:fe:03:0e | 169.254.3.14 | > | Tolga02 | Expunging | 1e:00:b4:00:00:bf | 192.168.18.192 | > | Tolga03 | Expunging | 1e:00:99:00:00:bb | 192.168.18.188 | > | deneme | Expunging | 1e:00:80:00:00:ba | 192.168.18.187 | > | snpvmtolga02 | Expunging | 1e:00:69:00:00:b9 | 192.168.18.186 | > | TolgaTest | Stopped | 1e:00:90:00:00:bc | 192.168.18.189 | > | TolgaTest02 | Stopped | 1e:00:96:00:00:bf | 192.168.18.192 | > | test411rc1 | Running | 1e:00:40:00:00:bb | 192.168.18.188 | > | test411rc1mac | Running | 1e:00:9f:00:00:ba | 192.168.18.187 | > | sil1 | Expunging | 1e:00:25:00:00:b9 | 192.168.18.186 | > | sil2sameip | Expunging | 1e:00:14:00:00:b9 | 192.168.18.186 | > | sil3sameip | Running | 1e:00:00:00:00:b9 | 192.168.18.186 | > +---------------+-----------+---------------------+--------------------+ > 15 rows in set (0.00 sec) > > >
