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[Bug 1794364] Re: 'nova-manage db online_data_migrations' count fail

 

Reviewed:  https://review.openstack.org/605329
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=c4c6dc736e084f2d919b9bcf93d26df87e0341c9
Submitter: Zuul
Branch:    master

commit c4c6dc736e084f2d919b9bcf93d26df87e0341c9
Author: imacdonn <iain.macdonnell@xxxxxxxxxx>
Date:   Wed Sep 26 04:30:49 2018 +0000

    nova-manage - fix online_data_migrations counts
    
    When running online_data_migrations in batches, totals were not
    being accumulated - rather the counts each batch would clobber
    those from the previous one, and the last batch would run no
    migrations, so the totals were reported as zero.
    
    Change-Id: Ib616f2efb69baa16e18601d27b747220bbefeb16
    Closes-Bug: #1794364


** Changed in: nova
       Status: In Progress => Fix Released

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https://bugs.launchpad.net/bugs/1794364

Title:
  'nova-manage db online_data_migrations' count fail

Status in OpenStack Compute (nova):
  Fix Released
Status in OpenStack Compute (nova) ocata series:
  In Progress
Status in OpenStack Compute (nova) pike series:
  In Progress
Status in OpenStack Compute (nova) queens series:
  In Progress
Status in OpenStack Compute (nova) rocky series:
  In Progress

Bug description:
  
  'nova-manage db online_data_migrations' attempts to display summary counts of migrations "Needed" and "Completed" in a pretty table at the end, but fails to accumulate the totals between successive invocations of _run_migration(), and ends up reporting zeroes.

  # nova-manage db online_data_migrations 
  /usr/lib/python2.7/site-packages/oslo_db/sqlalchemy/enginefacade.py:332: NotSupportedWarning: Configuration option(s) ['use_tpool'] not supported
    exception.NotSupportedWarning
  Running batches of 50 until complete
  /usr/lib/python2.7/site-packages/pymysql/cursors.py:166: Warning: (3090, u"Changing sql mode 'NO_AUTO_CREATE_USER' is deprecated. It will be removed in a future release.")
    result = self._query(query)
  2 rows matched query migrate_instances_add_request_spec, 0 migrated
  13 rows matched query migrate_quota_limits_to_api_db, 13 migrated
  37 rows matched query populate_uuids, 37 migrated
  50 rows matched query populate_uuids, 50 migrated
  50 rows matched query populate_uuids, 50 migrated
  50 rows matched query populate_uuids, 50 migrated
  50 rows matched query populate_uuids, 50 migrated
  50 rows matched query populate_uuids, 50 migrated
  50 rows matched query populate_uuids, 50 migrated
  50 rows matched query populate_uuids, 50 migrated
  50 rows matched query populate_uuids, 50 migrated
  50 rows matched query populate_uuids, 50 migrated
  50 rows matched query populate_uuids, 50 migrated
  50 rows matched query populate_uuids, 50 migrated
  50 rows matched query populate_uuids, 50 migrated
  50 rows matched query populate_uuids, 50 migrated
  50 rows matched query populate_uuids, 50 migrated
  50 rows matched query populate_uuids, 50 migrated
  50 rows matched query populate_uuids, 50 migrated
  50 rows matched query populate_uuids, 50 migrated
  50 rows matched query populate_uuids, 50 migrated
  50 rows matched query populate_uuids, 50 migrated
  50 rows matched query populate_uuids, 50 migrated
  50 rows matched query populate_uuids, 50 migrated
  50 rows matched query populate_uuids, 50 migrated
  50 rows matched query populate_uuids, 50 migrated
  50 rows matched query populate_uuids, 50 migrated
  50 rows matched query populate_uuids, 50 migrated
  50 rows matched query populate_uuids, 50 migrated
  50 rows matched query populate_uuids, 50 migrated
  50 rows matched query populate_uuids, 50 migrated
  50 rows matched query populate_uuids, 50 migrated
  50 rows matched query populate_uuids, 50 migrated
  50 rows matched query populate_uuids, 50 migrated
  50 rows matched query populate_uuids, 50 migrated
  50 rows matched query populate_uuids, 50 migrated
  50 rows matched query populate_uuids, 50 migrated
  50 rows matched query populate_uuids, 50 migrated
  50 rows matched query populate_uuids, 50 migrated
  50 rows matched query populate_uuids, 50 migrated
  50 rows matched query populate_uuids, 50 migrated
  50 rows matched query populate_uuids, 50 migrated
  50 rows matched query populate_uuids, 50 migrated
  50 rows matched query populate_uuids, 50 migrated
  50 rows matched query populate_uuids, 50 migrated
  50 rows matched query populate_uuids, 50 migrated
  50 rows matched query populate_uuids, 50 migrated
  50 rows matched query populate_uuids, 50 migrated
  50 rows matched query populate_uuids, 50 migrated
  50 rows matched query populate_uuids, 50 migrated
  21 rows matched query populate_uuids, 21 migrated
  +---------------------------------------------+--------------+-----------+
  |                  Migration                  | Total Needed | Completed |
  +---------------------------------------------+--------------+-----------+
  | delete_build_requests_with_no_instance_uuid |      0       |     0     |
  |    migrate_aggregate_reset_autoincrement    |      0       |     0     |
  |              migrate_aggregates             |      0       |     0     |
  |      migrate_instance_groups_to_api_db      |      0       |     0     |
  |      migrate_instances_add_request_spec     |      0       |     0     |
  |          migrate_keypairs_to_api_db         |      0       |     0     |
  |       migrate_quota_classes_to_api_db       |      0       |     0     |
  |        migrate_quota_limits_to_api_db       |      0       |     0     |
  |          migration_migrate_to_uuid          |      0       |     0     |
  |                populate_uuids               |      0       |     0     |
  |     service_uuids_online_data_migration     |      0       |     0     |
  +---------------------------------------------+--------------+-----------+

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