[openstack-dev] Instance STOPS/STARTS while taking snapshot

James Galvin jgalvin at servecentric.com
Thu Sep 10 09:39:57 UTC 2015


Openstack Kilo release Ceph storage backend

I have run into an issue lately where I create a snapshot of a running instance, while the snapshot state is "image pending upload" And "Queued" state in the image service, I cant access my Instance

I cant access it via the console, ssh and I ran a continuous ping to the floating IP and it times out, but the instance still shows running on the dashboard

As soon as the instance state is "Image uploading" and in the image service "saving" The instance becomes available again,

Is this a known issue? All of this is done via Horizon dashboard

I can see the following in the logs on the compute:

2015-09-09 14:33:39.265 23261 INFO nova.compute.manager [req-0252f823-73f5-4c37-aa86-efbe6536e4f6 d2b1cc9566d44a909de46689569118e3 3b5e03b8a83e44dd9a7140d868d28a9e - - -] [instance: a0e855e5-c205-4d61-bd48-99384d6310f5] instance snapshotting 2015-09-09 14:33:39.877 23261 INFO nova.compute.manager [req-1a3446d4-c183-4729-86b3-d63e15fe38d7 - - - - -] [instance: a0e855e5-c205-4d61-bd48-99384d6310f5] VM Paused (Lifecycle Event) 2015-09-09 14:33:40.049 23261 INFO nova.compute.manager [req-1a3446d4-c183-4729-86b3-d63e15fe38d7 - - - - -] [instance: a0e855e5-c205-4d61-bd48-99384d6310f5] During sync_power_state the instance has a pending task (image_snapshot). Skip. 2015-09-09 14:33:50.756 23261 INFO nova.virt.libvirt.driver [req-0252f823-73f5-4c37-aa86-efbe6536e4f6 d2b1cc9566d44a909de46689569118e3 3b5e03b8a83e44dd9a7140d868d28a9e - - -] [instance: a0e855e5-c205-4d61-bd48-99384d6310f5] Beginning cold snapshot process 2015-09-09 14:33:50.759 23261 INFO nova.compute.manager [req-1a3446d4-c183-4729-86b3-d63e15fe38d7 - - - - -] [instance: a0e855e5-c205-4d61-bd48-99384d6310f5] VM Stopped (Lifecycle Event) 2015-09-09 14:33:50.939 23261 INFO nova.compute.manager [req-1a3446d4-c183-4729-86b3-d63e15fe38d7 - - - - -] [instance: a0e855e5-c205-4d61-bd48-99384d6310f5] During sync_power_state the instance has a pending task (image_snapshot). Skip. 2015-09-09 14:35:57.831 23261 INFO nova.compute.manager [req-1a3446d4-c183-4729-86b3-d63e15fe38d7 - - - - -] [instance: a0e855e5-c205-4d61-bd48-99384d6310f5] VM Started (Lifecycle Event) 2015-09-09 14:35:57.990 23261 INFO nova.compute.manager [req-1a3446d4-c183-4729-86b3-d63e15fe38d7 - - - - -] [instance: a0e855e5-c205-4d61-bd48-99384d6310f5] During sync_power_state the instance has a pending task (image_pending_upload). Skip. 2015-09-09 14:35:57.991 23261 INFO nova.compute.manager [req-1a3446d4-c183-4729-86b3-d63e15fe38d7 - - - - -] [instance: a0e855e5-c205-4d61-bd48-99384d6310f5] VM Resumed (Lifecycle Event) 2015-09-09 14:35:58.151 23261 INFO nova.compute.manager [req-1a3446d4-c183-4729-86b3-d63e15fe38d7 - - - - -] [instance: a0e855e5-c205-4d61-bd48-99384d6310f5] During sync_power_state the instance has a pending task (image_pending_upload). Skip. 2015-09-09 14:35:58.498 23261 INFO nova.virt.libvirt.driver [req-0252f823-73f5-4c37-aa86-efbe6536e4f6 d2b1cc9566d44a909de46689569118e3 3b5e03b8a83e44dd9a7140d868d28a9e - - -] [instance: a0e855e5-c205-4d61-bd48-99384d6310f5] Snapshot extracted, beginning image upload

Any help with this would be appreciated :)

Thanks
James
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