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[Bug 1056976] Re: occasional failure to connect to database at system boot

To: yahoo-eng-team@xxxxxxxxxxxxxxxxxxx
From: Thierry Carrez <thierry.carrez+lp@xxxxxxxxx>
Date: Thu, 04 Apr 2013 09:46:39 -0000
Reply-to: Bug 1056976 <1056976@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

** Changed in: glance/grizzly
   Importance: Undecided => Medium

** Changed in: glance/grizzly
       Status: New => Fix Released

** Changed in: glance/grizzly
    Milestone: None => 2013.1

** Changed in: glance/grizzly
     Assignee: (unassigned) => Pádraig Brady (p-draigbrady)

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https://bugs.launchpad.net/bugs/1056976

Title:
  occasional failure to connect to database at system boot

Status in OpenStack Image Registry and Delivery Service (Glance):
  Fix Released
Status in Glance grizzly series:
  Fix Released

Bug description:
  On a heavily loaded system I noticed that the glance services failed
  to start with:

  2012-09-26 14:55:19 662 WARNING glance.db.sqlalchemy.api [-] SQL connection failed. 10 attempts left.
  2012-09-26 14:55:22 662 WARNING glance.db.sqlalchemy.api [-] SQL connection failed. 9 attempts left.
  2012-09-26 14:55:23 662 WARNING glance.db.sqlalchemy.api [-] SQL connection failed. 8 attempts left.
  2012-09-26 14:55:24 662 WARNING glance.db.sqlalchemy.api [-] SQL connection failed. 7 attempts left.
  2012-09-26 14:55:25 662 WARNING glance.db.sqlalchemy.api [-] SQL connection failed. 6 attempts left.
  2012-09-26 14:55:28 662 WARNING glance.db.sqlalchemy.api [-] SQL connection failed. 5 attempts left.
  2012-09-26 14:55:32 662 WARNING glance.db.sqlalchemy.api [-] SQL connection failed. 4 attempts left.
  2012-09-26 14:55:33 662 WARNING glance.db.sqlalchemy.api [-] SQL connection failed. 3 attempts left.
  2012-09-26 14:55:34 662 WARNING glance.db.sqlalchemy.api [-] SQL connection failed. 2 attempts left.
  2012-09-26 14:55:35 662 WARNING glance.db.sqlalchemy.api [-] SQL connection failed. 1 attempts left.
  2012-09-26 14:55:36 662 ERROR glance.db.sqlalchemy.api [-] Error configuring registry database with supplied sql_connection 'mysql://glance:glance@localhost/glance'. Got error:

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