[httperf] How to solve connreset?

Arlitt, Martin martin.arlitt at hp.com
Thu Nov 18 05:51:19 PST 2010

Hi Cooky

If you could send the httperf output, that might provide some insights into what is going on.

Also, I would use tcpdump to collect a packet trace from an experiment, and then look through the trace to determine if the client is trying to reuse a connection that the server has tried to close (in which case the server will issue a RST), or if something is going wrong on the server side and it is terminating the connection with a RST without the client having done anything wrong.


From: httperf-bounces at linux.hpl.hp.com [mailto:httperf-bounces at linux.hpl.hp.com] On Behalf Of Suchada Pakapongpan
Sent: Thursday, November 18, 2010 5:33 AM
To: httperf at linux.hpl.hp.com
Subject: [httperf] How to solve connreset?

Thank you very much for replying to solve fd-unavail.
Now, I'd like to solve connreset error but I have no Idiea to solve that.
In the test I just try rate = 3 for 4 minutes, the result has only 6142 connreset errors.

I use 1 client and 1 web server. there are linux. The Client generates requests to a java servlet application (using apache tomcat) that performs a CPU-intensive job (calculate the matrix).
I read some messages before about netstat detail but I still have no idea.
The differnce of 'netstat -s' before and after test

TCP: 0 failed connection attempts
13 connection resets received
40 connections established
4055 resets sent

Have any idea to solve this error?


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