Instances problems pausing unexpectedly.

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Instances problems pausing unexpectedly.

Ricardo Alexandre Silveira
Hello, I'm using the current Stein version openstack and when I throw an instance sometimes it pauses. The instance does not respond even if I reboot does not return. Does anyone know the reason and how can I resolve this issue? thanks in advance.

Attached my nova.log log:

2019-05-24 21:00:05.594 1320 INFO nova.compute.manager [-] [instance: 8599b47f-8be8-41a1-9b48-063a2f921196] VM Resumed (Lifecycle Event) 

2019-05-24 21:00:05.632 1320 INFO nova.virt.libvirt.driver [-] [instance: 8599b47f-8be8-41a1-9b48-063a2f921196] Instance rebooted successfully. 

2019-05-24 21:00:05.778 1320 INFO nova.compute.manager [req-f3e42617-35e7-416f-8940-ec1b7afde04f - - - - -] [instance: 8599b47f-8be8-41a1-9b48-063a2f921196] During sync_power_state the instan
ce has a pending task (powering-on). Skip.

2019-05-24 21:00:05.779 1320 INFO nova.compute.manager [req-f3e42617-35e7-416f-8940-ec1b7afde04f - - - - -] [instance: 8599b47f-8be8-41a1-9b48-063a2f921196] VM Started (Lifecycle Event) 

2019-05-24 21:00:10.870 1320 INFO nova.compute.manager [req-f3e42617-35e7-416f-8940-ec1b7afde04f - - - - -] [instance: 8599b47f-8be8-41a1-9b48-063a2f921196] VM Paused (Lifecycle Event) 

2019-05-24 21:00:10.995 1320 INFO nova.compute.manager [req-f3e42617-35e7-416f-8940-ec1b7afde04f - - - - -] [instance: 8599b47f-8be8-41a1-9b48-063a2f921196] During _sync_instance_power_state 
the DB power_state (1) does not match the vm_power_state from the hypervisor (3). Updating power_state in the DB to match the hypervisor. 

2019-05-24 21:00:11.162 1320 WARNING nova.compute.manager [req-f3e42617-35e7-416f-8940-ec1b7afde04f - - - - -] [instance: 8599b47f-8be8-41a1-9b48-063a2f921196] Instance is paused unexpectedly
. Ignore. 

2019-05-24 21:01:20.974 1320 INFO nova.compute.manager [req-1424d168-8ab5-405b-a802-923b05de88ca - - - - -] Updating bandwidth usage cache 

2019-05-24 21:01:21.024 1320 INFO nova.compute.manager [req-1424d168-8ab5-405b-a802-923b05de88ca - - - - -] Bandwidth usage not supported by libvirt.LibvirtDriver. 

2019-05-24 21:07:02.958 1320 WARNING nova.compute.manager [-] [instance: 8599b47f-8be8-41a1-9b48-063a2f921196] Instance is paused unexpectedly. Ignore. 

2019-05-24 21:17:07.970 1320 WARNING nova.compute.manager [-] [instance: 8599b47f-8be8-41a1-9b48-063a2f921196] Instance is paused unexpectedly. Ignore.

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