For apache limits, see:
http://httpd.apache.org/docs/mod/directives.html
For linux, try 'sysctl -a' to see a list of limits.

How many connections/sec were you creating?

Ken




Yaogeng Cheng wrote:
> Hi:
>  
> I was testing my servlet under Apach-Tomcat envirment in Linux system. I
> opened 200 threads in my Win 2000 and kept opening URLConnections and sent
> some String to the servlet using DataOutputStream dateOut = new
> DataOutputStream(conn.getOutputStream());. After a period of time, a lot of
> threads was failed to connect to the servlets by throwing
> java.net.ConnectionException. 
>  
> I checked Linux machine, and I found a lot of sockets were opend by my test
> client and were not closed and waiting time out. Is it normal that all these
> tcp connection did not close by themself and is it the reason that some
> URLConnection was rejected? How can I fix the problem? 
>  
> Is there any limitations with my Linux machine or TomCat on the number of
> TCP socket (by URLConnection on port 8080) connections? How can I check it
> and change the number?
>  
> Thanks
>  
> Yaogeng
> 



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