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Old 07-30-2004, 04:39 AM   #1
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Registered: Feb 2004
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RH 8 load average is messed up

Box :

Dual AMD MP 2800+
Dual S-ATA Hard Drives (raided for performance)
Redhat 8.0 (2.4.18-14smp) - i686 athlon i386 GNU/Linux

When I type "uptime", with virtually nothing going on, processors are almost 200% free, I am getting high load averages.

4:35am up 37 days, 11:25, 3 users, load average: 3.11, 4.07, 3.18

I can't figure out what is wrong, is redhat 8 fucked?

I have a similar machine running Redhat 9 and the load averages look like this for the same setup and same everything running or not running.

02:35:55 up 1 day, 11:47, 1 user, load average: 0.07, 0.02, 0.00

The redhat 9 server has never seen a load average higher than 0.2 whereas the redhat 8 server is just ridiculous all the time, never under 2

I memtest and I stress test the cpu's, they are fine.
What the heck can be causing this? Do I have to trash redhat 8 and upgrade to redhat 9 to fix this problem?

It's causing lag spikes
Old 07-30-2004, 06:59 AM   #2
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Registered: Feb 2004
Posts: 29

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holy crap, I found the error and I cant fix it still.

It's crontab (crond)

I ran /etc/init.d/crond start

watched the "top" reports for 30 minutes and it was spiking irregularly when the crontab went, always on the minute.

I ran /etc/init.d/crond stop

watched the "top" reports for another 30 minutes and NO spikes. Nobody is on the machine at this hour, nothing changed except for crontab being executed or not.

What the hell!?!?!?!?!

Why's crond (crontab) screwing me up?
I ran all the scripts that crontab does manually, and it did not spike it.

I can also empty out crontab for all the users and it still spikes irregularly. My crond is fked!!!

What do I do?


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