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[Doug Wiegley <dougwig@xxxxxxxxxxx>]

** Project changed: neutron => openstack-manuals

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https://bugs.launchpad.net/bugs/1571814

Title:
      Add an option for WSGI pool size

Status in openstack-manuals:
  New

Bug description:
  https://review.openstack.org/306187
  Dear bug triager. This bug was created since a commit was marked with DOCIMPACT.
  Your project "openstack/neutron" is set up so that we directly report the documentation bugs against it. If this needs changing, the docimpact-group option needs to be added for the project. You can ask the OpenStack infra team (#openstack-infra on freenode) for help if you need to.

  commit eee9e58ed258a48c69effef121f55fdaa5b68bd6
  Author: Mike Bayer <mike_mp@xxxxxxxxxxxxxxxx>
  Date:   Tue Feb 9 13:10:57 2016 -0500

      Add an option for WSGI pool size
      
      Neutron currently hardcodes the number of
      greenlets used to process requests in a process to 1000.
      As detailed in
      http://lists.openstack.org/pipermail/openstack-dev/2015-December/082717.html
      
      this can cause requests to wait within one process
      for available database connection while other processes
      remain available.
      
      By adding a wsgi_default_pool_size option functionally
      identical to that of Nova, we can lower the number of
      greenlets per process to be more in line with a typical
      max database connection pool size.
      
      DocImpact: a previously unused configuration value
                 wsgi_default_pool_size is now used to affect
                 the number of greenlets used by the server. The
                 default number of greenlets also changes from 1000
                 to 100.
      Change-Id: I94cd2f9262e0f330cf006b40bb3c0071086e5d71
      (cherry picked from commit 9d573387f1e33ce85269d3ed9be501717eed4807)

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