[AOLSERVER] Question re CPU usage

[Thorpe Mayes]

Hi.

What would cause the following:

Normally the CPU percent is in the low single digits. 

Now it gets as high as 333%. 

I am looking at recent changes, but I am not sure what to look for. 

Thanks,

Thorpe

[Ayan George]

On 02/16/2014 05:33 PM, Thorpe Mayes wrote:
> Hi.
>
> What would cause the following:
>
>

> Normally the CPU percent is in the low single digits.
>
> Now it gets as high as 333%.
>
> I am looking at recent changes, but I am not sure what to look
> for.
>

Do you have any custom .adp pages, URL handers, or other TCL scripts
running within AOLserver? Or is this just a bone stock install
without any requests?

My hunch is that there is a particular page or script causing this.

-ayan

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[Jack Schmidt]

Also, you might want to check the traffic to see if spiders and crawlers are hammering specific pages.

Regards.

--
"A scrum a day keeps the pigs at bay"

[Gustaf Neumann]

A cpu usage of 333% indicates at least 4 active threads, most probably
connection threads. Does the server recover from this by itself?

We had a similar problem a few years ago, which turned out to be a bogus
entry in the internationalization code for numbers (i think for polish) in OpenACS.
A user switched her language to Polish, and all of a sudden, a regexp
started to run wild.

Do you see any unusual entries in the error.log?
-g

Am 16.02.14 23:33, schrieb Thorpe Mayes:

[Thorpe Mayes]

Hi Ayan,

Thanks for the reply.

No, this version has been running about two years. There are several web sites and applications running.

The problem started about 10 days ago, so I am looking at changes I made around that time.

Seems like a script that has gone wild. Just not quite sure what to look for.

Thorpe

[Gustaf Neumann]

If you use a request monitor like nsstats you can quickly pinpoint
long-running http-requests
-gn


Am 17.02.14 13:46, schrieb Thorpe Mayes: