Hi Ivan,
What platform are you using ?
If you're using Linux and have a recent kernel, you can check the
file and inode limits like this:
$> cat /proc/sys/fs/file-max
$> cat /proc/sys/fs/inode-max
and can change them similarly (as root) with
$> echo "8192" > /proc/sys/fs/file-max
$> echo "24576" > /proc/sys/fs/inode-max
(this info came from the linux kernel mailing list archives, they note
there that the inode number should be 3 times the file numder)
Under other Unix's there should be something similar.
HTH,
Cheers,
Marcus
On Wed, 6 Dec 2000, Ivan E. Markovic wrote:
> I am running a stress test on my Servlet based system; there are
> about 30 users being tested simultaneously. It works well for about 5
> 10 mins or so and then I get the error listed below and then after
> about another minute the whole system locks up! I cannot hit any of
> the servlets. Apache is still running but Tomcat is hung.
>
> I have checked my code and I don't leave any files open. Am I
> restricted as to the number of users that I have on the system? Can I
> increase the no. of open files? How can I check the number of open
> files that I have?
>
> Thank you for your time.
>
>
> java.net.SocketException: Too many open files
> at java.net.PlainSocketImpl.accept(Compiled Code)
> at java.net.ServerSocket.implAccept(Compiled Code)
> at java.net.ServerSocket.accept(Compiled Code)
> at
> org.apache.tomcat.service.PoolTcpEndpoint.acceptSocket(Compiled Code)
> at org.apache.tomcat.service.TcpWorkerThread.run(Compiled Code)
> at org.apache.tomcat.util.ThreadPool$ControlRunnable.run(Compiled Code)
> at java.lang.Thread.run(Compiled Code)
> Endpoint ServerSocket[addr=0.0.0.0/0.0.0.0,port=0,localport=8007]
> shutdown due to exception: java.net.SocketException: Too many open
> files
>
>
> I v a n ...
> Ivan Markovic
> SculptLight
> http://www.sculptlight.com
> (+353) 87 2939256
> (+353) 1 2982205
>
> 114 Lower Churchtown Rd,
> Dublin 14,
> Ireland.
>
>
--
.....
,,$$$$$$$$$, Marcus Crafter
;$' '$$$$: Computer Systems Engineer
$: $$$$: Open Software Associates GmbH
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