Allow optionally disabling ssl compression

Registered by Stuart McLaren on 2013-01-16

By default SSL layer compression is enabled when connecting to a https server.

Disabling compression can provide a performance increase, particularly when transferring
objects over a fast network.

Here's an example of download performance with and without SSL compression (actually this was done
for Glance, but the principle is the same):

http://15.185.160.228/ssl_comp.pdf

The ability to disable ssl compression would require using the python-openssl library, eg (a working
prototype):

http://15.185.160.228/ssl-comp-diff.txt

Note that much of the functionality in python-openssl maps to Python 3.3 so if/when we move to a newer version of Python replacing the python-openssl code with Python 3.3 code should be simple.

Blueprint information

Status:
Started
Approver:
None
Priority:
Undefined
Drafter:
None
Direction:
Needs approval
Assignee:
Stuart McLaren
Definition:
Review
Series goal:
None
Implementation:
Good progress
Milestone target:
None
Started by
Chmouel Boudjnah on 2013-02-06

Related branches

Sprints

Whiteboard

Gerrit topic: https://review.openstack.org/#q,topic:bp/ssl-compression,n,z

Addressed by: https://review.openstack.org/20029
    Add option to disable SSL compression

(?)

Work Items

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