Public bug reported:
The `get_minimum_version_all_cells" function currently checks cell0 too.
This will fail on a cell conductor when using templated cell uris as it
will attempt to connect to the wrong database server.
For example set cell0 db uri as follows:
[nova@cell1-controller-0 /]$ nova-manage cell_v2 update_cell --cell_uuid
00000000-0000-0000-0000-000000000000
--database_connection='{scheme}://{username}:{password}@{hostname}/?{query}'
--transport-url='none:///'
[nova@cell1-controller-0 /]$ nova-manage cell_v2 list_cells
+---------+--------------------------------------+-----------------------------------------------------------------------------+--------------------------------------------------------------------------------------------------------------------------------------+----------+
| Name | UUID |
Transport URL |
Database Connection
| Disabled |
+---------+--------------------------------------+-----------------------------------------------------------------------------+--------------------------------------------------------------------------------------------------------------------------------------+----------+
| cell0 | 00000000-0000-0000-0000-000000000000 |
none:/ |
mysql+pymysql://nova:****@cell1.internalapi.redhat.local/?read_default_file=/etc/my.cnf.d/tripleo.cnf&read_default_group=tripleo
| False |
| cell1 | 9f8cc7bb-08f2-4658-a7e8-ece2b84c5e5c |
rabbit://guest:****@cell1-controller-0.internalapi.redhat.local:5672/?ssl=1 |
mysql+pymysql://nova:****@cell1.internalapi.redhat.local/nova?read_default_file=/etc/my.cnf.d/tripleo.cnf&read_default_group=tripleo
| False |
| default | abb3a2d8-cdee-4e0e-a6c2-1cf3b9c098de |
rabbit://guest:****@cell1-controller-0.internalapi.redhat.local:5672/?ssl=1 |
mysql+pymysql://nova:****@cell1.internalapi.redhat.local/nova?read_default_file=/etc/my.cnf.d/tripleo.cnf&read_default_group=tripleo
| False |
+---------+--------------------------------------+-----------------------------------------------------------------------------+--------------------------------------------------------------------------------------------------------------------------------------+----------+
The resulting cell0 database uri is incorrect as it using the cell1
database hostname from the cell conductor nova.conf. This should be
nothing more than a cosmetic issue since the cell conductor should not
connect to cell0, however it currently does in the minimum version
check.
Can be reproduced by running an upgrade check on a cell specific nova-
conductor as this includes a min version check.
** Affects: nova
Importance: Undecided
Status: New
** Tags: cells
** Attachment added: "upgrade_check.txt"
https://bugs.launchpad.net/bugs/1983044/+attachment/5605773/+files/upgrade_check.txt
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https://bugs.launchpad.net/bugs/1983044
Title:
cell conductor attempts to connect to cell0 in all-cells min version
check
Status in OpenStack Compute (nova):
New
Bug description:
The `get_minimum_version_all_cells" function currently checks cell0
too. This will fail on a cell conductor when using templated cell uris
as it will attempt to connect to the wrong database server.
For example set cell0 db uri as follows:
[nova@cell1-controller-0 /]$ nova-manage cell_v2 update_cell --cell_uuid
00000000-0000-0000-0000-000000000000
--database_connection='{scheme}://{username}:{password}@{hostname}/?{query}'
--transport-url='none:///'
[nova@cell1-controller-0 /]$ nova-manage cell_v2 list_cells
+---------+--------------------------------------+-----------------------------------------------------------------------------+--------------------------------------------------------------------------------------------------------------------------------------+----------+
| Name | UUID |
Transport URL |
Database Connection
| Disabled |
+---------+--------------------------------------+-----------------------------------------------------------------------------+--------------------------------------------------------------------------------------------------------------------------------------+----------+
| cell0 | 00000000-0000-0000-0000-000000000000 |
none:/ |
mysql+pymysql://nova:****@cell1.internalapi.redhat.local/?read_default_file=/etc/my.cnf.d/tripleo.cnf&read_default_group=tripleo
| False |
| cell1 | 9f8cc7bb-08f2-4658-a7e8-ece2b84c5e5c |
rabbit://guest:****@cell1-controller-0.internalapi.redhat.local:5672/?ssl=1 |
mysql+pymysql://nova:****@cell1.internalapi.redhat.local/nova?read_default_file=/etc/my.cnf.d/tripleo.cnf&read_default_group=tripleo
| False |
| default | abb3a2d8-cdee-4e0e-a6c2-1cf3b9c098de |
rabbit://guest:****@cell1-controller-0.internalapi.redhat.local:5672/?ssl=1 |
mysql+pymysql://nova:****@cell1.internalapi.redhat.local/nova?read_default_file=/etc/my.cnf.d/tripleo.cnf&read_default_group=tripleo
| False |
+---------+--------------------------------------+-----------------------------------------------------------------------------+--------------------------------------------------------------------------------------------------------------------------------------+----------+
The resulting cell0 database uri is incorrect as it using the cell1
database hostname from the cell conductor nova.conf. This should be
nothing more than a cosmetic issue since the cell conductor should not
connect to cell0, however it currently does in the minimum version
check.
Can be reproduced by running an upgrade check on a cell specific nova-
conductor as this includes a min version check.
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https://bugs.launchpad.net/nova/+bug/1983044/+subscriptions
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