yahoo-eng-team team mailing list archive

[Shi Yan <1971228@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

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

We observe some nova-conductor behavior during its startup, and think
that might be not that correct, would like to see if any improvement can
be made for this.

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

- We have a large cellv2 setup, the nova services are running in victoria version.
- Just start/restart nova-conductor in one cell and check logs

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

The conductor will try to connect other cell's DB in order to get get_minimum_version_all_cells.
Since each cell is guarded by firewall, the connection attempt is failed and has to wait for its timeout(60 seconds) to start the following nova-conductor services.

This will be fine for the superconductor but the cell conductor usually
cannot reach other cell's DB. Wonder if this behavior can be changed, or
there are some other considerations behind this?

** Affects: nova
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1971228

Title:
  cell conductor tries to connect the other cells's DB when it is
  started

Status in OpenStack Compute (nova):
  New

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

  We observe some nova-conductor behavior during its startup, and think
  that might be not that correct, would like to see if any improvement
  can be made for this.

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

  - We have a large cellv2 setup, the nova services are running in victoria version.
  - Just start/restart nova-conductor in one cell and check logs

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

  The conductor will try to connect other cell's DB in order to get get_minimum_version_all_cells.
  Since each cell is guarded by firewall, the connection attempt is failed and has to wait for its timeout(60 seconds) to start the following nova-conductor services.

  This will be fine for the superconductor but the cell conductor
  usually cannot reach other cell's DB. Wonder if this behavior can be
  changed, or there are some other considerations behind this?

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