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Conference noted::seal

Title:SEAL
Moderator:GALVIA::SMITH
Created:Mon Mar 21 1994
Last Modified:Fri Jun 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:1989
Total number of notes:8209

1818.0. "A wwwproxy performance tuning problem ..." by NETRIX::"[email protected]" (Arthur Lin) Wed Feb 26 1997 21:25

I have been tortured for several weeks on the following AVFU's wwwproxy
problem which I ever posted to this note a week ago:
The customer complainted that, after opening the wwwproxy access, the
proxy halted due to being unable to fork new wwwproxy processes. Then
I tried to modified the system parameter "maxuser" from default 64 to
256, but this action made no solution. Several days later, I tried again
to modified the system parameter "uprc" from default 64 to 1024 - this
action worked - the proxy no more halted, but the new www clients could
not access the proxy due to timeout after the gatekeeper already had
390 active processes - the total number of activce processes seemed
to be not over the max uprc limit. For the newest case, I have not
much idea for it. Any guide for it ?

-Arthur-


[Posted by WWW Notes gateway]
T.RTitleUserPersonal
Name
DateLines
1818.1questionsEEMELI::EINAMOThu Feb 27 1997 01:4917
	Some size issuses

	1. Cpu / mem type
	2. Customer size ( how many www-browsers)
	3. internet connection speed
	4. firewall version

	questions.

	is your DNS working ?
	is there errors on proxy error log ?
	How fast does the proxy work for those who can get it work

	MARKO 

	
1818.2My customer's firewall machine configurationNETRIX::"[email protected]"Arthur LinThu Mar 06 1997 22:0337
About the problem I mentioned, the following is my customer's firewall related

configuration:
------------------------------------------------------------------------------
-
H/W:                       AlphaStation 4/255 with 256M DRAM
S/W:                       Digital Firewall for UNIX V2.0 on Digital UNIX
V3.2D
Internet Connection Speed: T1
Internal Sites:            as much as 6000 (BUT only about one hundred of them
                           are frequent users)
DNS Setting:               OK
------------------------------------------------------------------------------
-


Note: 1. I dodn't think the problem is related to the hardware or network
bandwidth
         because there was no such problem after the customer replacing our
wwwproxy
         with an existed proxy server.
      2. I don't either think the problem can be solve by just tuning the
system
         parameters, such as "maxusers" or "maxuprc", because I have tried and
got
         no progress.
      3. I guess that there is a parameter in wwwproxy.conf to limit the
maximum www
         conection because there IS similar parameter in Netscape or other
vender's
         proxy server- if so, the problem I mentioned can be solved. But I
dodn't
         know how to tune such a parameter. 

-Arthur-

[Posted by WWW Notes gateway]