Re: Slow HTTP upload of POST content

[Parsons Technical Services]

Well for the life of me I can't find it either. I know I read it somewhere. 
The idea was an issue with IE causing a fragmentation of the packets and 
retransmits. It boiled down to a bug in IE for certain versions. I don't 
remember a solution.

So with that lets go after your setup.
Are the machines running IIS or are you accessing Tomcat directly?
Can/have you done any network analysis to see what the packets look like and 
if there are any retransmissions?

Are the network cards the same on all the servers?
Doug
----- Original Message ----- 
From: <[EMAIL PROTECTED]>
To: <tomcat-user@jakarta.apache.org>
Sent: Tuesday, February 01, 2005 8:42 AM
Subject: AW: Slow HTTP upload of POST content

Sorry i did'nt find the thread, althoug I searched for somthing like this.
If you know exactly, where the thread is, send me the adress, cause I dont
know where it is, and it would help me a lot of, not to loose more time
on this search.
thx
------------------------------------------
BMW Group
Herr Christoph Emmersberger
Praktikant
mailto:[EMAIL PROTECTED]
Url: http://www.bmwgroup.de
------------------------------------------ 


-----Urspr�ngliche Nachricht-----
Von: Parsons Technical Services
[mailto:[EMAIL PROTECTED]
Gesendet: Dienstag, 1. Februar 2005 14:19
An: Tomcat Users List
Betreff: Re: Slow HTTP upload of POST content
Search the archives. There is a thread on this and the cause.
http://mail-archives.apache.org/eyebrowse/SummarizeList?listNam
[EMAIL PROTECTED]
Doug
----- Original Message ----- 
From: "Michael Merkulovich" <[EMAIL PROTECTED]>
To: "Tomcat Users List" <tomcat-user@jakarta.apache.org>
Sent: Tuesday, February 01, 2005 2:14 AM
Subject: Slow HTTP upload of POST content


We are experiencing a very strange problem with HTTP uploads
on tomcat5.
When uploading large files from IE over the network, upload speed is
capped
at about 70kbytes/sec even though the network allows for much higher
speeds.
Neither CPU nor disk access appears to be the bottleneck. When using
FireFox
browser, upload speed is about 4000kbytes/sec. When using IE
from the
server
through loopback adapter, speed is 7000kbytes/sec.
This problem is happening on 2 separate servers. One is a
win 2000 box
with
a freshly installed OS. The other one is a brand new windows
server 2003
enterprise edition.
I tried apache fileupload library and o'reilly
MultipartRequest. I also
tried reading directly from InputStream all to the same effect.
There is one machine which runs file-for-file identical tomcat
installation
under the same version of java. When accessing that machine
with IE from
other boxes, uploads go fast.
I cannot figure out what's different between the machine on
which it works
and the two on which it doesn't. Any ideas?
-- Mike
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