Public bug reported:
Problematic Situation:
1 check the hosts visible to nova compute
nova hypervisor-list
id hypervisor hostname state status
xx compute2 up enbled
2 check the hosts visible to cellv2
nova-manage cell_v2 list_hosts
cell name cell uuid hostname
cell1 xxxx compute1
cell1 xxxx compute2
Here compute1 that actually does not exist (like renamed) still remains in
cell_mappings
3 now try to delete host compute1
nova-manage cell_v2 delete_host --cell_uuid xxxx --host compute1
then the following error is shown:
Traceback (most recent call last):
File "/usr/lib/python2.7/site-packages/nova/cmd/manage.py", line 1620, in main
ret = fn(*fn_args, **fn_kwargs)
File "/usr/lib/python2.7/site-packages/nova/cmd/manage.py", line 1558, in
delete_host
nodes = objects.ComputeNodeList.get_all_by_host(cctxt, host)
File "/usr/lib/python2.7/site-packages/oslo_versionedobjects/base.py", line
184, in wrapper
result = fn(cls, context, *args, **kwargs)
File "/usr/lib/python2.7/site-packages/nova/objects/compute_node.py", line
437, in get_all_by_host
use_slave=use_slave)
File "/usr/lib/python2.7/site-packages/nova/db/sqlalchemy/api.py", line 225,
in wrapper
return f(*args, **kwargs)
File "/usr/lib/python2.7/site-packages/nova/objects/compute_node.py", line
432, in _db_compute_node_get_all_by_host
return db.compute_node_get_all_by_host(context, host)
File "/usr/lib/python2.7/site-packages/nova/db/api.py", line 297, in
compute_node_get_all_by_host
return IMPL.compute_node_get_all_by_host(context, host)
File "/usr/lib/python2.7/site-packages/nova/db/sqlalchemy/api.py", line 270,
in wrapped
return f(context, *args, **kwargs)
File "/usr/lib/python2.7/site-packages/nova/db/sqlalchemy/api.py", line 672,
in compute_node_get_all_by_host
raise exception.ComputeHostNotFound(host=host)
ComputeHostNotFound: Compute host compute1 could not be found.
Not quite sure the exact way to reproduce it, but I think it would be nicer to
allow the delete_host
operation for situations like this.
** Affects: nova
Importance: Undecided
Assignee: Chen (chenn2)
Status: New
** Changed in: nova
Assignee: (unassigned) => Chen (chenn2)
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https://bugs.launchpad.net/bugs/1781391
Title:
cellv2_delete_host when host not found by ComputeNodeList
Status in OpenStack Compute (nova):
New
Bug description:
Problematic Situation:
1 check the hosts visible to nova compute
nova hypervisor-list
id hypervisor hostname state status
xx compute2 up enbled
2 check the hosts visible to cellv2
nova-manage cell_v2 list_hosts
cell name cell uuid hostname
cell1 xxxx compute1
cell1 xxxx compute2
Here compute1 that actually does not exist (like renamed) still remains in
cell_mappings
3 now try to delete host compute1
nova-manage cell_v2 delete_host --cell_uuid xxxx --host compute1
then the following error is shown:
Traceback (most recent call last):
File "/usr/lib/python2.7/site-packages/nova/cmd/manage.py", line 1620, in
main
ret = fn(*fn_args, **fn_kwargs)
File "/usr/lib/python2.7/site-packages/nova/cmd/manage.py", line 1558, in
delete_host
nodes = objects.ComputeNodeList.get_all_by_host(cctxt, host)
File "/usr/lib/python2.7/site-packages/oslo_versionedobjects/base.py", line
184, in wrapper
result = fn(cls, context, *args, **kwargs)
File "/usr/lib/python2.7/site-packages/nova/objects/compute_node.py", line
437, in get_all_by_host
use_slave=use_slave)
File "/usr/lib/python2.7/site-packages/nova/db/sqlalchemy/api.py", line
225, in wrapper
return f(*args, **kwargs)
File "/usr/lib/python2.7/site-packages/nova/objects/compute_node.py", line
432, in _db_compute_node_get_all_by_host
return db.compute_node_get_all_by_host(context, host)
File "/usr/lib/python2.7/site-packages/nova/db/api.py", line 297, in
compute_node_get_all_by_host
return IMPL.compute_node_get_all_by_host(context, host)
File "/usr/lib/python2.7/site-packages/nova/db/sqlalchemy/api.py", line
270, in wrapped
return f(context, *args, **kwargs)
File "/usr/lib/python2.7/site-packages/nova/db/sqlalchemy/api.py", line
672, in compute_node_get_all_by_host
raise exception.ComputeHostNotFound(host=host)
ComputeHostNotFound: Compute host compute1 could not be found.
Not quite sure the exact way to reproduce it, but I think it would be nicer
to allow the delete_host
operation for situations like this.
To manage notifications about this bug go to:
https://bugs.launchpad.net/nova/+bug/1781391/+subscriptions
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