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[ic] IC not responding


We've got a weird issue going on right now where all of a sudden IC will
stop servicing requests and utilization of the server goes to just about
0.  If I restart IC everything goes back to normal.  This has gone on
for the last 3 days at different points in the day.  The ip address
"65.214.44.65" in the logs is a web crawler for Ask Jeeves.  Here is
info about our environment:

IC 4.8.3
Apache 1.3.34
Mod_interchange 1.33
Perl 5.6.1
Dual 2.4ghz Xeon
4gb ram

RPC mode:
ifdef TRAFFIC =~ /rpc/i
Message RPC traffic settings.
PreFork             Yes
StartServers        10 
MaxRequestsPerChild 100
HouseKeeping        2
PIDcheck            120
MaxServers          0
endif


IC error.log entries:


65.214.44.65 - - [08/November/2005:22:43:07 -0800] - // CGI mapping
error: Syntax error in GET input: DepID%253D7%2526CtgID%253D97
> 
65.214.44.65 - - [08/November/2005:23:43:10 -0800] - // CGI mapping
error: Syntax error in GET input: DepID%253D5%2526CtgID%253D96
> 
65.214.44.65 - - [09/November/2005:00:43:32 -0800] - // CGI mapping
error: Syntax error in GET input: DepID%253D7%2526CtgID%253D15
> 
65.214.44.65 - - [09/November/2005:01:08:28 -0800] - // CGI mapping
error: Syntax error in GET input: DepID%253D5%2526CtgID%253D70
> 
- - - [09/November/2005:04:04:14 -0800] - - Died in server spawn: read:
closed
 at /home/live48/ic483/lib/Vend/Server.pm line 535.
> 
- - - [09/November/2005:04:04:14 -0800] - - Died in server spawn: read:
closed
 at /home/live48/ic483/lib/Vend/Server.pm line 535.
> 
- - - [09/November/2005:04:04:14 -0800] - - Died in server spawn: read:
closed
 at /home/live48/ic483/lib/Vend/Server.pm line 535.
> 
- - - [09/November/2005:04:04:14 -0800] - - Died in server spawn: read:
closed
 at /home/live48/ic483/lib/Vend/Server.pm line 535.
> 
- - - [09/November/2005:04:04:14 -0800] - - Died in server spawn: read:
closed
 at /home/live48/ic483/lib/Vend/Server.pm line 535.
> 
- - - [09/November/2005:04:04:14 -0800] - - Died in server spawn: read:
closed
 at /home/live48/ic483/lib/Vend/Server.pm line 535.
> 
- - - [09/November/2005:04:04:14 -0800] - - Died in server spawn: read:
closed
 at /home/live48/ic483/lib/Vend/Server.pm line 535.
> 
- - - [09/November/2005:04:04:14 -0800] - - Died in server spawn: read:
closed
 at /home/live48/ic483/lib/Vend/Server.pm line 535.
> 
- - - [09/November/2005:04:04:14 -0800] - - Died in server spawn: read:
closed
 at /home/live48/ic483/lib/Vend/Server.pm line 535.
> 
- - - [09/November/2005:04:04:14 -0800] - - Died in server spawn: read:
closed
 at /home/live48/ic483/lib/Vend/Server.pm line 535.
> 
- - - [09/November/2005:04:04:14 -0800] - - Died in server spawn: read:
closed
 at /home/live48/ic483/lib/Vend/Server.pm line 535.
> 
- - - [09/November/2005:04:04:14 -0800] - - Died in server spawn: read:
closed
 at /home/live48/ic483/lib/Vend/Server.pm line 535.
> 
- - - [09/November/2005:04:04:14 -0800] - - Died in server spawn: read:
closed
 at /home/live48/ic483/lib/Vend/Server.pm line 535.
> 
- - - [09/November/2005:04:04:14 -0800] - - Died in server spawn: read:
closed
 at /home/live48/ic483/lib/Vend/Server.pm line 535.
> 
- - - [09/November/2005:04:04:14 -0800] - - Died in server spawn: read:
closed
 at /home/live48/ic483/lib/Vend/Server.pm line 535.
> 
- - - [09/November/2005:04:04:14 -0800] - - Died in server spawn: read:
closed
 at /home/live48/ic483/lib/Vend/Server.pm line 535.
> 
- - - [09/November/2005:04:04:14 -0800] - - Died in server spawn: read:
closed
 at /home/live48/ic483/lib/Vend/Server.pm line 535.
> 
- - - [09/November/2005:04:04:14 -0800] - - Died in server spawn: read:
closed
 at /home/live48/ic483/lib/Vend/Server.pm line 535.
> 
- - - [09/November/2005:04:04:14 -0800] - - Died in server spawn: read:
closed
 at /home/live48/ic483/lib/Vend/Server.pm line 535.
> 
- - - [09/November/2005:04:04:14 -0800] - - Died in server spawn: read:
closed
 at /home/live48/ic483/lib/Vend/Server.pm line 535.
> 
- - - [09/November/2005:04:04:41 -0800] - - Died in server spawn: read:
closed
 at /home/live48/ic483/lib/Vend/Server.pm line 535.
> 
- - - [09/November/2005:04:04:41 -0800] - - Died in server spawn: read:
closed
 at /home/live48/ic483/lib/Vend/Server.pm line 535.
> 
- - - [09/November/2005:04:04:41 -0800] - - Died in server spawn: read:
closed
 at /home/live48/ic483/lib/Vend/Server.pm line 535.
> 
- - - [09/November/2005:04:04:41 -0800] - - Died in server spawn: read:
closed
 at /home/live48/ic483/lib/Vend/Server.pm line 535.
> 
- - - [09/November/2005:04:04:42 -0800] - - Died in server spawn: read:
closed
 at /home/live48/ic483/lib/Vend/Server.pm line 535.
> 
- - - [09/November/2005:04:04:42 -0800] - - Died in server spawn: read:
closed
 at /home/live48/ic483/lib/Vend/Server.pm line 535.
> 
- - - [09/November/2005:04:04:42 -0800] - - Died in server spawn: read:
closed
 at /home/live48/ic483/lib/Vend/Server.pm line 535.
> 
- - - [09/November/2005:04:04:42 -0800] - - Died in server spawn: read:
closed
 at /home/live48/ic483/lib/Vend/Server.pm line 535.
> 
- - - [09/November/2005:04:04:42 -0800] - - Died in server spawn: read:
closed
 at /home/live48/ic483/lib/Vend/Server.pm line 535.
> 
- - - [09/November/2005:04:04:42 -0800] - - Died in server spawn: read:
closed
 at /home/live48/ic483/lib/Vend/Server.pm line 535.
> 
- - - [09/November/2005:04:04:43 -0800] - - Died in server spawn: read:
closed
 at /home/live48/ic483/lib/Vend/Server.pm line 535.
> 
- - - [09/November/2005:04:04:43 -0800] - - Died in server spawn: read:
closed
 at /home/live48/ic483/lib/Vend/Server.pm line 535.
> 
- - - [09/November/2005:04:04:43 -0800] - - Died in server spawn: read:
closed
 at /home/live48/ic483/lib/Vend/Server.pm line 535.
> 
- - - [09/November/2005:04:04:43 -0800] - - Died in server spawn: read:
closed
 at /home/live48/ic483/lib/Vend/Server.pm line 535.
> 
- - - [09/November/2005:04:04:43 -0800] - - Died in server spawn: read:
closed
 at /home/live48/ic483/lib/Vend/Server.pm line 535.
> 
- - - [09/November/2005:04:04:43 -0800] - - Died in server spawn: read:
closed
 at /home/live48/ic483/lib/Vend/Server.pm line 535.
> 
- - - [09/November/2005:04:04:43 -0800] - - Died in server spawn: read:
closed
 at /home/live48/ic483/lib/Vend/Server.pm line 535.
> 
- - - [09/November/2005:04:04:43 -0800] - - Died in server spawn: read:
closed
 at /home/live48/ic483/lib/Vend/Server.pm line 535.
> 
- - - [09/November/2005:04:04:43 -0800] - - Died in server spawn: read:
closed
 at /home/live48/ic483/lib/Vend/Server.pm line 535.
> 
- - - [09/November/2005:04:04:43 -0800] - - Died in server spawn: read:
closed
 at /home/live48/ic483/lib/Vend/Server.pm line 535.

What sort of thing can cause this error?  Should I try slowing the web
crawler down, perhaps it's overloading the system when it's crawling the
site?

I'm not sure where to go from here, would appreciate any insight into
this type of problem.

Thanks,
-Ron

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