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[Claudiu Belu <cbelu@xxxxxxxxxxxxxxxxxxxxxx>]

Public bug reported:

Description
===========

If there are no cells created, nova-manage cell_v2 simple_cell_setup
will also create cell0, but it creates it with an invalid database
connection string: [1].

Having a database connection string like
"mysql+pymysql://root:Passw0rd@127.0.0.1/nova?charset=utf8nova_cell0"
will cause the rest of the cell setup to fail, with the following error:
[2], as there is no valid charset named "utf8nova_cell0", and the second
cell is never created.

This issue has been observed in stable/ocata.


Steps to reproduce
==================

* Have no cells available (delete them).
* run nova-manage cell_v2 simple_cell_setup --transport-url $url


Expected result
===============

* cell0 and a second cell to be created.


Actual result
=============

* cell0 created with a wrong database connection string.
* no second cell.


Environment
===========

* devstack, on stable/ocata.
* n_cpu service disabled (other nova-compute services are being run other nodes).


Logs & Configs
==============

[1] nova-manage: http://paste.openstack.org/show/611813/
[2] simple_cell_setup output(last bits): http://paste.openstack.org/show/611815/

** Affects: nova
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1696685

Title:
  nova-manage cell_v2 simple_cell_setup creates an invalid cell0

Status in OpenStack Compute (nova):
  New

Bug description:
  Description
  ===========

  If there are no cells created, nova-manage cell_v2 simple_cell_setup
  will also create cell0, but it creates it with an invalid database
  connection string: [1].

  Having a database connection string like
  "mysql+pymysql://root:Passw0rd@127.0.0.1/nova?charset=utf8nova_cell0"
  will cause the rest of the cell setup to fail, with the following
  error: [2], as there is no valid charset named "utf8nova_cell0", and
  the second cell is never created.

  This issue has been observed in stable/ocata.

  
  Steps to reproduce
  ==================

  * Have no cells available (delete them).
  * run nova-manage cell_v2 simple_cell_setup --transport-url $url

  
  Expected result
  ===============

  * cell0 and a second cell to be created.

  
  Actual result
  =============

  * cell0 created with a wrong database connection string.
  * no second cell.

  
  Environment
  ===========

  * devstack, on stable/ocata.
  * n_cpu service disabled (other nova-compute services are being run other nodes).

  
  Logs & Configs
  ==============

  [1] nova-manage: http://paste.openstack.org/show/611813/
  [2] simple_cell_setup output(last bits): http://paste.openstack.org/show/611815/

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