Pernah gak ngalamin node Compute reboot? baik disengaja maupun tidak, lalu semua Instances OpenStack di dalamnya statusnya berubah jadi SHUTOFF dan kita mesti start atau sesuaikan state-nya secara manual 😀 mungkin masalah yang kalian alami sama, yaitu belum mengaktifkan opsi ini di konfigurasi Nova
# This option specifies whether to start guests that were running before the # host rebooted. It ensures that all of the instances on a Nova compute node # resume their state each time the compute node boots or restarts. # (boolean value) #resume_guests_state_on_host_boot=false
Lalu bagaimana agar state Instances kembali menjadi sediakala sebelum host Compute direboot, cukup aktifkan opsi ini
vim /etc/nova/nova.conf resume_guests_state_on_host_boot=true
Setelah itu muat ulang services Nova
systemctl restart openstack-nova-compute systemctl sttus openstack-nova-compute
Uji coba, cek uptime dan list Instances OpenStack untuk mengetahui state awal
[root@openstack]# uptime; openstack server list 12:50:57 up 35 min, 1 user, load average: 0.55, 0.90, 1.10 +--------------------------------------+----------+-----------+----------------------+--------------------------+---------+ | ID | Name | Status | Networks | Image | Flavor | +--------------------------------------+----------+-----------+----------------------+--------------------------+---------+ | fdd0bb76-3581-44b3-a275-49198cab4e69 | cirros-3 | SHUTOFF | net-ext=172.18.1.101 | cirros-0.4.0-x86_64-disk | m1.tiny | | 396d50fd-c919-4a89-a4f6-99cb7ea82937 | cirros-1 | ACTIVE | net-ext=172.18.1.120 | cirros-0.4.0-x86_64-disk | m1.tiny | | c00c4b70-168a-4e91-a77f-fc701344fe35 | cirros-2 | SUSPENDED | net-ext=172.18.1.125 | cirros-0.4.0-x86_64-disk | m1.tiny | +--------------------------------------+----------+-----------+----------------------+--------------------------+---------+
Selanjutnya, coba reboot node Compute dan cek Instances kalian kembali
[root@openstack]# uptime; openstack server list 12:59:31 up 3 min, 1 user, load average: 6.64, 5.49, 2.35 +--------------------------------------+----------+-----------+----------------------+--------------------------+---------+ | ID | Name | Status | Networks | Image | Flavor | +--------------------------------------+----------+-----------+----------------------+--------------------------+---------+ | fdd0bb76-3581-44b3-a275-49198cab4e69 | cirros-3 | SHUTOFF | net-ext=172.18.1.101 | cirros-0.4.0-x86_64-disk | m1.tiny | | 396d50fd-c919-4a89-a4f6-99cb7ea82937 | cirros-1 | ACTIVE | net-ext=172.18.1.120 | cirros-0.4.0-x86_64-disk | m1.tiny | | c00c4b70-168a-4e91-a77f-fc701344fe35 | cirros-2 | SUSPENDED | net-ext=172.18.1.125 | cirros-0.4.0-x86_64-disk | m1.tiny | +--------------------------------------+----------+-----------+----------------------+--------------------------+---------+
Sekian dan Terima kasih
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