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Posted to users@tomcat.apache.org by Michael Merkulovich <mm...@hotmail.com> on 2005/02/01 08:14:18 UTC

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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Re: Slow HTTP upload of POST content

Posted by Parsons Technical Services <pa...@earthlink.net>.
Search the archives. There is a thread on this and the cause.

http://mail-archives.apache.org/eyebrowse/SummarizeList?listName=tomcat-user@jakarta.apache.org

Doug

----- Original Message ----- 
From: "Michael Merkulovich" <mm...@hotmail.com>
To: "Tomcat Users List" <to...@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
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: tomcat-user-unsubscribe@jakarta.apache.org
> For additional commands, e-mail: tomcat-user-help@jakarta.apache.org
>
>
> 



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