[Python-bugs-list] [ python-Bugs-583975 ] gethostbyaddr lag

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Bugs item #583975, was opened at 2002-07-19 14:41
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=105470&aid=583975&group_id=5470

Category: Python Library
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Jason R. Mastaler (jasonrm)
Assigned to: Nobody/Anonymous (nobody)
Summary: gethostbyaddr lag

Initial Comment:
For more info, also see
http://mail.python.org/pipermail/python-list/2002-July/113706.html
 
Perl's gethostbyaddr doesn't seem to have this problem
as shown
below.  Should I report this in the bug tracker?
 
$ time perl -MSocket -lwe 'print +(gethostbyaddr
inet_aton("datavortex.net"), AF_INET)[0]'
datavortex.net
 
real    0m0.063s
user    0m0.050s
sys     0m0.010s
 
$ time python2 -c 'from socket import * ; print
gethostbyaddr("datavortex.net")[0]'
datavortex.net
 
real    0m20.176s
user    0m0.070s
sys     0m0.020s
 


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>Comment By: Neal Norwitz (nnorwitz)
Date: 2002-07-20 12:02

Message:
Logged In: YES 
user_id=33168

Does this happen consistently (every run) or only the first
time?
Works fine for me (Linux).  What OS are you on?

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Comment By: Jason R. Mastaler (jasonrm)
Date: 2002-07-19 17:46

Message:
Logged In: YES 
user_id=85984

I'm not ruling it out that it could be a local configuration
problem,
it's just that Python is the only application experiencing
this delay.

We've gone through the network configuration and everything
seems
sound, so I'm not sure what more to do.

/etc/resolv.conf is fine -- all entries are operational
nameservers.


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Comment By: Jack Jansen (jackjansen)
Date: 2002-07-19 17:42

Message:
Logged In: YES 
user_id=45365

This smells like a local configuration bug on your system, on my system it works fine (0.220u 0.110s 0:01.85 17.8%     0+0k 84+10io 0pf+0w). Look in your /etc/resolv.conf (or similar file for your platform) to see that there aren't any non-existing hosts listed there.

Although, of course, that doesn't explain why perl has no delay...

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You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=105470&aid=583975&group_id=5470