Last modified: 2007-02-20 05:08:04 UTC
From about a week ago, yaseo has problem.
It occurs any version of windows IE6 or under.
to reproduce, it's simple.
1. clear all the cache of IE
2. access to http://ja.wikipedia.org/ (not other project) with IE
that will freez all IE windows for a minute.
while freez, nothing shown on window where request ja.wikipedia.org but <title>
is shown correctly (as メインページ).
after that, IE will show mainpage corrctly. nothing lacks.
this mean, everyone came to wikipedia first time (with IE) must wait for a minute.
Many non-wikipedian came from yahoo, google suffers that and complains about it
It only occurs when access from asia area,
I mean, hosts index is like
and it's because IE's keepalive bug.
There's several known ways to escape it
# setting keepalive time to 0 with some application or editing registory
# using http proxies
# setting etc/hosts as
# disable css on IE option
# use any other browser including IE7
but, you know, we cant say anything for first visiter or non-wikimedian from
everywhere, so those information to escape DONT works.
it's not occur any other projects.
it's occur only from around yaseo (I alredy tried to reproduce from EU area with
setting hosts file with an admin, but it doesnt)
there's list of what we know
* IE's default keepalive time is 1 minute.
* changing keepalive time to 0 will escape this problem
* IE's keep alive has bug and fixed in IE7
* it's not occurs on any other browser.
I'll attach 3 tcpdump results
Created attachment 3208 [details]
tcp dump - faild - all
this is a zipped dump with windump (tcpdump on windows)
>windump -l -s 1600 -X -i 3 (port HTTP) and ((host 184.108.40.206) or (host
and access to ja.wikipedia.org with IE.
220.127.116.11 rr.yaseo.wikimedia.org (ja.wikipedia.org)
18.104.22.168 vip2.yaseo.wikimedia.org (upload.wikimedia.org)
LEONALD is my host.
see, a timestamp of
00:28:14.563767 and next ack (00:29:12.601284)
it is a GET request of Wiki.png and ack, it costs 1 minutes.
Created attachment 3209 [details]
this is a zipped dump of windump with
>windump -l -s 1600 -X -i 3 (port HTTP) and ((host 22.214.171.124) or (host
and add a line to etc/hosts as
this shows wikipedia correctly in 2 sec.
those two dumps take with same PC, same OS, same Browser, same settings except
I know it occurs from IE's bug, but 2weeks ago it's not occured so it's a
please fix it up! thanx.