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[Matt Riedemann <mriedem@xxxxxxxxxx>]

The n-cpu and c-vol issues are from this change to python-glanceclient
on 7/11 to use requests:

https://github.com/openstack/python-
glanceclient/commit/dbb242b776908ca50ed8557ebfe7cfcd879366c8

That lines up with what we're seeing in the g-api logs with swiftclient
and bug 1295812, and the times line up with logstash for n-cpu/c-vol
logs and the fact they both use python-glanceclient.

** Summary changed:

- HTTPConnectionPool is full warning should be a debug message
+ glanceclient is not handling http connection pools properly with python-requests

** Also affects: python-glanceclient
   Importance: Undecided
       Status: New

** No longer affects: glance

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https://bugs.launchpad.net/bugs/1341777

Title:
  glanceclient is not handling http connection pools properly with
  python-requests

Status in Python client library for Glance:
  New

Bug description:
  This:

  message:"HttpConnectionPool is full, discarding connection: 127.0.0.1"
  AND tags:"screen-g-api.txt"

  shows up nearly 420K times in 7 days in Jenkins runs, on 100%
  successful jobs, so it's not a very good warning if it's expected to
  happen this much.  It should be debug level if it's this pervasive,
  unless it's masking something else, but the logstash trends don't
  suggest that.

  http://logstash.openstack.org/#eyJzZWFyY2giOiJtZXNzYWdlOlwiSHR0cENvbm5lY3Rpb25Qb29sIGlzIGZ1bGwsIGRpc2NhcmRpbmcgY29ubmVjdGlvbjogMTI3LjAuMC4xXCIgQU5EIHRhZ3M6XCJzY3JlZW4tZy1hcGkudHh0XCIiLCJmaWVsZHMiOltdLCJvZmZzZXQiOjAsInRpbWVmcmFtZSI6IjYwNDgwMCIsImdyYXBobW9kZSI6ImNvdW50IiwidGltZSI6eyJ1c2VyX2ludGVydmFsIjowfSwic3RhbXAiOjE0MDUzNzE0NTU4NTZ9

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