Hello:

I saw this strange load today on the Apache screen in Longview for one of my sites that starts around 9:00am:



The number of requests and throughput seem to be the same, but for some reason the number of workers sending and waiting has gone way up.

The dip around 12:00 is because I tried restarting Apache to see if that helped, it didn't.

The only changes to the server recently are standard updates.

It's a 2048 Linode running Ubuntu 13.10 - everything else seems to be running as normal.

Almost all of the accesses are from Digital Signage players, the web load is pretty steady 24/7, there really are not any major fluctuations like a normal website. A quick check of the logs does not really show any extraneous traffic.

Any one have any suggestions as to what might be going on?

Thanks as always!

John

Try running nethogs. iptraf and and iotop are useful too, for iotop you might want to supply -n to suppress DNS lookups to reduce output clutter. Also, those charts are too foofo for me, I like the plain charts, non-Longview, just personal opinion.