Roman Cheplyaka wrote: > I suspect that hackage.haskell.org does reverse DNS lookups, which > results in extremely long response times on some misconfigured networks > (over which I have no control, unfortunately). See [1] for the detailed > description of the problem.
Here is a good list of some possible sources of this problem: http://betabug.ch/blogs/ch-athens/933 The most common of these seems to be use of %h in LogFormat, which is the Apache default. Actually, it is annoying to chase down actual problems when the IPs in the log file are not pre-resolved. Nevertheless, I made the change from %h to %a on lun; if anyone objects, please let me know. I do not have access to abbot, nor to lambda. Another minor version of that problem can cause the server to do a DNS lookup of its own virtual hosts on every request, as described here: http://httpd.apache.org/docs/2.2/dns-caveats.html We should fix that problem, too, if it exists. But that's not Roman's problem. It wouldn't cause the extreme latancy that Roman is experiencing. In any case, this problem did not occur on lun. Regards, Yitz _______________________________________________ haskell-infrastructure mailing list [email protected] http://community.galois.com/mailman/listinfo/haskell-infrastructure
