From 9642cd7ae24f0ba79ce5647c709b35ae8f06a285 Mon Sep 17 00:00:00 2001 From: Jasper Ras Date: Sun, 19 Jan 2025 21:14:51 +0100 Subject: vault backup: 2025-01-19 21:14:51 --- 3 resources/openstack/Creating ports.md | 4 ---- 3 resources/openstack/Libvirt pmsuspended.md | 6 ------ 3 resources/openstack/Nova live migration volume.md | 18 ------------------ 3 files changed, 28 deletions(-) delete mode 100644 3 resources/openstack/Creating ports.md delete mode 100644 3 resources/openstack/Libvirt pmsuspended.md delete mode 100644 3 resources/openstack/Nova live migration volume.md (limited to '3 resources/openstack') diff --git a/3 resources/openstack/Creating ports.md b/3 resources/openstack/Creating ports.md deleted file mode 100644 index 90223bf..0000000 --- a/3 resources/openstack/Creating ports.md +++ /dev/null @@ -1,4 +0,0 @@ -#openstack #port - ---- -Creating a port with a fixed IP requires admin privileges. It is not sufficient to have an RBAC policy that shares the network with a tenant. \ No newline at end of file diff --git a/3 resources/openstack/Libvirt pmsuspended.md b/3 resources/openstack/Libvirt pmsuspended.md deleted file mode 100644 index 4749c76..0000000 --- a/3 resources/openstack/Libvirt pmsuspended.md +++ /dev/null @@ -1,6 +0,0 @@ -#openstack #libvirt - ---- -Encountered a guest running some desktop image that sleeps and puts libvirt domain in state pmsuspend. - -Openstack does not sync power states in this case so the nova instance is still ACTIVE. \ No newline at end of file diff --git a/3 resources/openstack/Nova live migration volume.md b/3 resources/openstack/Nova live migration volume.md deleted file mode 100644 index 8b37f67..0000000 --- a/3 resources/openstack/Nova live migration volume.md +++ /dev/null @@ -1,18 +0,0 @@ -#openstack #nova #live-migration #volume - - ---- -Table cinder.volume_attachment, contains which volume_driver. target_lun `()` here maps to `dm-`. -Luns are not unique across pod, each node has a target_lun 2 and thus dm-2 connected. - -os-brick is responsible for connecting volumes; -if connection_info it receives contains target_iqns, target_luns etc it will not do a scan and just returns those. -`@see os_brick/initiator/connectors/iscsi.py` - -`nova/virt/libvirt/driver.py -> def _connect_volume` does attaching of volumes using os-brick. Driver exposes some methods that do this and are called elsewhere: `swap_volume`, `attach_volume`, `pre_live_migration`. - -`pre_live_migration` is called by `nova/compute/manager.py` - -So in `nova/compute/manager.py` there is a function that does the rollback, and it rollbacks bdm's and deletes volume attachments before it calls `rollback_live_migration_at_destination` which in turn makes an attempt at deleting the actual volume attachment to the node. But at that point all objects have been rollbacked already so it has invalid information. - -If the code in new versions of openstack isn't any different i'll just make a bug report and see what they come up with. -- cgit v1.2.3