"Use the latest versions! Dirk and Woodstone have made
some great improvements in speed."
=> that's aspecialy true
in the threading beta's you're running, but they are not yet available (in beta
or in final) to the general audiance...
Dirk.
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Kevin Stone
Sent: Tuesday, July 12, 2005 6:22 PM
To: [email protected]
Subject: RE: [SA-list] One monitoring server or more?
This will make a HUGE difference in your cycle time and is
a must if you are running more than a couple of hundred
checks.
Other things that can help(IF you have large numbers
of Downs) is to reduce the timeout. It defaults to 5 seconds, most LAN
checks can be 1 second.
Don't check everything each cycle. For example we
only check disk space once an hour(every 12 cycles), printers are pinged every
15 minutes(every 3 cycles).
With our web servers we reversed the dependencies - we
start with the URL check if that is "up" we don't ping, check port 80 or the web
related services. If the page is up we can assume that the
web services are working. This saves us 3-5 checks on each web
server. Non-dependent services are still checked
separately.
Minimize the number of HTML pages generated and the amount
of data on them. The generation of pages can take a considerable amount of
time.
Use the latest versions! Dirk and Woodstone have made
some great improvements in speed.
-Kevin
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Dirk Bulinckx
Sent: Monday, July 11, 2005 5:59 PM
To: [email protected]
Subject: RE: [SA-list] One monitoring server or more?
Little tip (that will also reduce the cycle
time):
Create/edit
HKEY_LOCAL_MACHINE\SOFTWARE\DBU Consulting\Servers
Alive\StartUp\PerItemCycle
(string)
and give it a value of 10 (instead of the default
250)
Restart SA and check again how long the cycle time
is....
Dirk.
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Chris S. Mang
Sent: Monday, July 11, 2005 11:52 PM
To: [email protected]
Subject: [SA-list] One monitoring server or more?
Hello,
Currently, we monitor almost 900 items across a number of servers around the world, utilizing one instance of Servers Alive 4.1. It currently takes about 18 minutes to run through all those checks. I would like to reduce that response time by 50%.
Does anyone run multiple Servers Alive instances (on different servers) to improve performance?
What are some of the plusses and minuses to running multiple SA servers versus a single SA server (other than cost of additional licensing for multiple servers)?
How difficult is it to combine the web page output from multiple SA servers?
Thanks for any information you provide!
Chris Mang>>
JDA Software Group,
Inc.
