Public bug reported:
Unlike in nova-manage create_cell, in nova-manage update_cell the check
for the same combination of transport-url and database_connection does
not exist. Hence it allows a user to update a cell's transport-url and
database_connection to another existing cell's configuration which can
create inconsistency (if a user accidentally does do it) and should not
be allowed IMO.
Steps to Reproduce :
-> nova-manage cell_v2 list_cells
+-------+--------------------------------------+-----------------------------------------------------------+--------------------------------------------------------------------+
| Name | UUID |
Transport URL | Database
Connection |
+-------+--------------------------------------+-----------------------------------------------------------+--------------------------------------------------------------------+
| cell0 | 00000000-0000-0000-0000-000000000000 |
none:/ |
mysql+pymysql://root:****@127.0.0.1/nova_cell0?charset=utf8 |
| cell1 | 20f9fd43-7295-4f67-8f0c-7828b12f5e4f |
rabbit://stackrabbit:****@188.185.83.1:5672/nova_cell1 |
mysql+pymysql://root:****@188.185.83.1/nova_cell1?charset=utf8 |
| cell2 | 7acaf644-d181-420b-ac80-486b83793bd2 |
rabbit://stackrabbit:****@188.185.83.2:5672/nova_cell1 |
mysql+pymysql://root:****@188.185.83.2/nova_cell1?charset=utf8 |
+-------+--------------------------------------+-----------------------------------------------------------+--------------------------------------------------------------------+
-> nova-manage cell_v2 update_cell --cell-uuid 7acaf644-d181-420b-
ac80-486b83793bd2 --transport-url
rabbit://stackrabbit:****@188.185.83.1:5672/nova_cell1
--database_connection
mysql+pymysql://root:****@188.185.83.1/nova_cell1?charset=utf8
Expected result
===============
"Cell with the specified transport_url and database_connection combination
already exists"
Actual result
=============
-> nova-manage cell_v2 list_cells
+-------+--------------------------------------+-----------------------------------------------------------+--------------------------------------------------------------------+
| Name | UUID |
Transport URL | Database
Connection |
+-------+--------------------------------------+-----------------------------------------------------------+--------------------------------------------------------------------+
| cell0 | 00000000-0000-0000-0000-000000000000 |
none:/ |
mysql+pymysql://root:****@127.0.0.1/nova_cell0?charset=utf8 |
| cell1 | 20f9fd43-7295-4f67-8f0c-7828b12f5e4f |
rabbit://stackrabbit:****@188.185.83.1:5672/nova_cell1 |
mysql+pymysql://root:****@188.185.83.1/nova_cell1?charset=utf8 |
| cell2 | 7acaf644-d181-420b-ac80-486b83793bd2 |
rabbit://stackrabbit:****@188.185.83.1:5672/nova_cell1 |
mysql+pymysql://root:****@188.185.83.1/nova_cell1?charset=utf8 |
+-------+--------------------------------------+-----------------------------------------------------------+--------------------------------------------------------------------+
Solution : The same kind of check in nova-manage create_cell needs to be
done in nova-manage update_cell as well.
** Affects: nova
Importance: Undecided
Assignee: Surya Seetharaman (tssurya)
Status: New
** Tags: cells nova-manage
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https://bugs.launchpad.net/bugs/1729806
Title:
nova-manage update_cell does not check if the same combination of
transport_url and database_connection already exists
Status in OpenStack Compute (nova):
New
Bug description:
Unlike in nova-manage create_cell, in nova-manage update_cell the
check for the same combination of transport-url and
database_connection does not exist. Hence it allows a user to update a
cell's transport-url and database_connection to another existing
cell's configuration which can create inconsistency (if a user
accidentally does do it) and should not be allowed IMO.
Steps to Reproduce :
-> nova-manage cell_v2 list_cells
+-------+--------------------------------------+-----------------------------------------------------------+--------------------------------------------------------------------+
| Name | UUID |
Transport URL | Database
Connection |
+-------+--------------------------------------+-----------------------------------------------------------+--------------------------------------------------------------------+
| cell0 | 00000000-0000-0000-0000-000000000000 |
none:/ |
mysql+pymysql://root:****@127.0.0.1/nova_cell0?charset=utf8 |
| cell1 | 20f9fd43-7295-4f67-8f0c-7828b12f5e4f |
rabbit://stackrabbit:****@188.185.83.1:5672/nova_cell1 |
mysql+pymysql://root:****@188.185.83.1/nova_cell1?charset=utf8 |
| cell2 | 7acaf644-d181-420b-ac80-486b83793bd2 |
rabbit://stackrabbit:****@188.185.83.2:5672/nova_cell1 |
mysql+pymysql://root:****@188.185.83.2/nova_cell1?charset=utf8 |
+-------+--------------------------------------+-----------------------------------------------------------+--------------------------------------------------------------------+
-> nova-manage cell_v2 update_cell --cell-uuid 7acaf644-d181-420b-
ac80-486b83793bd2 --transport-url
rabbit://stackrabbit:****@188.185.83.1:5672/nova_cell1
--database_connection
mysql+pymysql://root:****@188.185.83.1/nova_cell1?charset=utf8
Expected result
===============
"Cell with the specified transport_url and database_connection combination
already exists"
Actual result
=============
-> nova-manage cell_v2 list_cells
+-------+--------------------------------------+-----------------------------------------------------------+--------------------------------------------------------------------+
| Name | UUID |
Transport URL | Database
Connection |
+-------+--------------------------------------+-----------------------------------------------------------+--------------------------------------------------------------------+
| cell0 | 00000000-0000-0000-0000-000000000000 |
none:/ |
mysql+pymysql://root:****@127.0.0.1/nova_cell0?charset=utf8 |
| cell1 | 20f9fd43-7295-4f67-8f0c-7828b12f5e4f |
rabbit://stackrabbit:****@188.185.83.1:5672/nova_cell1 |
mysql+pymysql://root:****@188.185.83.1/nova_cell1?charset=utf8 |
| cell2 | 7acaf644-d181-420b-ac80-486b83793bd2 |
rabbit://stackrabbit:****@188.185.83.1:5672/nova_cell1 |
mysql+pymysql://root:****@188.185.83.1/nova_cell1?charset=utf8 |
+-------+--------------------------------------+-----------------------------------------------------------+--------------------------------------------------------------------+
Solution : The same kind of check in nova-manage create_cell needs to
be done in nova-manage update_cell as well.
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https://bugs.launchpad.net/nova/+bug/1729806/+subscriptions
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