Issue 14849 - linux problem connecting to openoffice.org website with ECN on
Summary: linux problem connecting to openoffice.org website with ECN on
Status: CLOSED FIXED
Alias: None
Product: Infrastructure
Classification: Infrastructure
Component: Website general issues (show other issues)
Version: current
Hardware: PC Linux, all
: P3 Trivial (vote)
Target Milestone: ---
Assignee: lsuarezpotts
QA Contact: issues@www
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2003-05-25 05:27 UTC by jensja
Modified: 2013-08-07 15:24 UTC (History)
3 users (show)

See Also:
Issue Type: TASK
Latest Confirmation in: ---
Developer Difficulty: ---


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Description jensja 2003-05-25 05:27:23 UTC
www.openoffice.org does not support "ecn"
(explicit congestion notification protocol, rfc3168)

All connection attempts to  http://www.openoffice.org time out when ECN is
enabled in the local tcp/ip stack.

All my linux web browsers could not connect to www.openoffice.org until I found
out that I had to disable ecn in my tcp stack by issuing

# echo 0 > /proc/net/ipv4/tcp_ecn

on a commandline as root.

Why is ecn supported by www.collab.net as well as most sites I've seen so far on
the web, but not by www.openoffice.org?
Comment 1 mdekkers 2003-06-01 12:00:17 UTC
what kernel version and distro are you using?   
Comment 2 mdekkers 2003-06-01 12:02:18 UTC
accepting issue 
Comment 3 jensja 2003-06-02 09:51:57 UTC
I'm using Debian Woody, kernel 2.4.20 with XFS support. 
Comment 4 lsuarezpotts 2003-06-03 19:50:43 UTC
It is supported by CN? interesting. I have raised this issue with CN's ops, most 
recently 6 weeks ago and they respond by saying that only a few marginal types use 
ECN and so it is an insignificant issue.  Sun has taken this issue on to see if it can 
help resolve it. Adding Stefan to cc list.
louis 
Comment 5 stx123 2003-06-03 21:11:05 UTC
Hi Jens (if jensja is an abbreviation for jens :-),
Could you do me a favour and check www.netbeans.org?
CN and Netbeans are working on a solution.
Thanks, Stefan
Comment 6 mdekkers 2003-06-03 21:44:40 UTC
CN implements / supports protocols based on who uses them, rather then usefulness? 
interesting... ;-) 
Comment 7 jensja 2003-06-03 23:48:11 UTC
I can open http://www.netbeans.org (http://s001.sfo.collab.net/) with
ECN enabled.
But not http://www.openoffice.org (http://s002.sfo.collab.net/).

netstat -ptn shows that the browsers socket does stay in SYN_SENT
state for a very long time.

Now I disabled ecn again to file this report.

I would like this one to be fixed because it may block site access for
many linux users. And I guess some of them will give in before they 
find the workaround. Afair I found the hint via google in a message
from a redhat user, so not only debian is affected.


Jens - (you were right, Stefan :-)

Comment 8 stx123 2003-06-04 00:10:38 UTC
We found out the problem in the firewall has been fixed.

Info about the fix is at :
http://sunsolve.sun.com/pub-cgi/retrieve.pl?
type=0&doc=fpatches%2F109737&display=plain

Download the patch at :
http://sunsolve.sun.com/pub-cgi/patchDownload.pl?
target=109737&method=h

Assigning to support - pls evaluate/apply the patch.  
Thanks.
Comment 9 stx123 2003-06-04 00:11:35 UTC
assigning to support
Comment 10 Unknown 2003-06-04 17:55:05 UTC
I've filed internal issue 18748 for the operations group to review the
problem and patch and to provide insight.
I will update this issue by June 6th.
Comment 11 Unknown 2003-06-11 16:47:01 UTC
The operations group is putting together the correct path to apply to
apply. I will update this issue by 6/13.
Comment 12 lsuarezpotts 2003-06-12 23:53:32 UTC
thanks, kenneth!
louis 
Comment 13 Unknown 2003-06-14 00:03:17 UTC
I've asked for an update on planned scheduling for this work. CN will
be doing some maint. next week, and I've asked if this can be done at
the same time if not sooner. 
I will update this issue Monday the 16th
Comment 14 Unknown 2003-06-19 23:32:42 UTC
operations is reviewing their maintenance plans for the next few weeks
and will schedule an appropriate time to do this possibly in the next
week. I will update this issue by 6/25 with more information
Comment 15 Unknown 2003-06-26 18:03:20 UTC
This is tentatively scheduled for our next maintenance which will be
July 5th.

I will update this issue on 7/7 
Comment 16 Unknown 2003-07-07 16:29:48 UTC
The internal task was completed during our regular maintenance on
Saturday. Reassigning to Louis for follow up.
Comment 17 lsuarezpotts 2003-07-09 04:17:37 UTC
Kenneth, Thanks!
You mean then that those with ECN enabled will be able to view OOo?
If so... wow, throngs, man, throngs.  I presume I need do nothing particular.
cheers,
Louis 
Comment 18 stx123 2003-07-15 10:24:45 UTC
... besides closing the issue :-)
According to
http://urchin.earth.li/cgi-bin/ecn.pl?action=display&mode=fixed
ECN works now.
Comment 19 stx123 2003-07-15 10:25:06 UTC
verified and closing
Comment 20 lsuarezpotts 2003-07-18 23:21:59 UTC
What Joy!
louis