Bug 1004295 - pywbem initiates new HTTP connection with each request
pywbem initiates new HTTP connection with each request
Status: CLOSED WONTFIX
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: pywbem (Show other bugs)
7.0
Unspecified Unspecified
unspecified Severity medium
: rc
: ---
Assigned To: Jan Safranek
BaseOS QE - Apps
:
Depends On:
Blocks:
  Show dependency treegraph
 
Reported: 2013-09-04 07:00 EDT by Jan Safranek
Modified: 2013-11-01 08:42 EDT (History)
2 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Environment:
Last Closed: 2013-11-01 08:42:16 EDT
Type: Bug
Regression: ---
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---


Attachments (Terms of Use)
Highly experimental patch (40.07 KB, patch)
2013-11-01 08:41 EDT, Jan Safranek
no flags Details | Diff

  None (edit)
Description Jan Safranek 2013-09-04 07:00:10 EDT
Description of problem:
Each request inside WBEMConnection opens new TCP connection to CIMOM, which includes TLS handshake (if enabled). This slows down whole communication a lot.

Version-Release number of selected component (if applicable):
pywbem-0.7.0-16.20130827svn625.el7.noarch

How reproducible:
always

Steps to Reproduce:

import pywbem
c = pywbem.WBEMConnection("https://localhost", ("root", "opensesame"))
while True:
    c.EnumerateInstanceNames('LMI_Identity')

Actual results:
in wireshark, I see lot of separate TCP connections

Expected results:
One TCP connection with HTTP keep-alive enabled.
Comment 2 Jan Safranek 2013-11-01 08:41:11 EDT
Created attachment 818282 [details]
Highly experimental patch
Comment 3 Jan Safranek 2013-11-01 08:42:16 EDT
Using Connection: Keep-Alive did not have any significant performance improvements, I'm closing the bug for now.

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