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[Bug 1171601] Re: dbapi_use_tpool exposes problems in eventlet

To: yahoo-eng-team@xxxxxxxxxxxxxxxxxxx
From: Victor Sergeyev <vsergeyev@xxxxxxxxxxxx>
Date: Wed, 12 Mar 2014 15:44:23 -0000
Reply-to: Bug 1171601 <1171601@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

After the patch https://review.openstack.org/#/c/60031/ (Remove eventlet
tpool from common db.api) was merged, eventlet tpool is not used for
work with database in Oslo code

** No longer affects: oslo

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https://bugs.launchpad.net/bugs/1171601

Title:
  dbapi_use_tpool exposes problems in eventlet

Status in OpenStack Compute (Nova):
  Confirmed

Bug description:
  The dbapi_use_tpool option doesn't work completely because of problems
  in eventlet.  Even though this is technically an eventlet issue, it's
  important for Nova so this bug is to track the issue getting fixed in
  eventlet.

  There is a patch in progress here:

  https://bitbucket.org/eventlet/eventlet/pull-request/29/fix-use-of-
  semaphore-with-tpool-issue-137/diff

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