httpd Failed Error

Hi Am getting thie error daily 6 to 8 time in my mail box.

httpd failed @ Sat Mar 21 05:24:20 2009. A restart was attempted automagically.
Service Check Method: [tcp connect]

Failure Reason: Timeout while trying to get data from service


........................

I got these error in my apache logs


[Sat Mar 21 22:52:08 2009] [error] child process 16021 still did not exit, sending a SIGKILL
[Sat Mar 21 22:52:08 2009] [error] child process 21012 still did not exit, sending a SIGKILL
[Sat Mar 21 22:52:08 2009] [error] child process 6392 still did not exit, sending a SIGKILL
[Sat Mar 21 22:52:08 2009] [error] child process 29090 still did not exit, sending a SIGKILL
[Sat Mar 21 22:52:08 2009] [error] child process 28734 still did not exit, sending a SIGKILL
[Sat Mar 21 22:52:08 2009] [error] child process 8903 still did not exit, sending a SIGKILL
[Sat Mar 21 22:52:08 2009] [error] child process 12051 still did not exit, sending a SIGKILL
[Sat Mar 21 22:52:08 2009] [error] child process 32368 still did not exit, sending a SIGKILL
[Sat Mar 21 22:52:08 2009] [error] child process 7679 still did not exit, sending a SIGKILL
[Sat Mar 21 22:52:08 2009] [error] child process 7106 still did not exit, sending a SIGKILL
[Sat Mar 21 22:52:10 2009] [notice] caught SIGTERM, shutting down
[Sat Mar 21 22:52:11 2009] [notice] suEXEC mechanism enabled (wrapper: /usr/local/apache/bin/suexec)
[Sat Mar 21 22:52:11 2009] [notice] Apache/2.0.63 (Unix) mod_ssl/2.0.63 OpenSSL/0.9.8e-fips-rhel5 mod_auth_passthrough/2.1 mod_bwlimited/1.4 PHP/5.2.8 configured -- resuming normal operations
[Sat Mar 21 23:00:30 2009] [error] [client 216.168.253.198] Invalid method in request \x80@\x01\x03
[Sat Mar 21 23:00:30 2009] [error] [client 216.168.253.198] File does not exist: /usr/local/apache/htdocs/501.shtml




So kinldy let me know where is the problem.

And which files i have to modify to resolve this problem

 

no respose

 

its is pretty hard to tell from only these info. sorry. May you ask your provider.

 

Please include the setting for your httpd.conf

Especially this part

MaxKeepAliveRequests ??
KeepAliveTimeout ??
<IfModule prefork.c>
ServerLimit ??
StartServers ??
MinSpareServers ??
MaxSpareServers ??
MaxClients ??
MaxRequestsPerChild ??
</IfModule>