So recently while being oncall, i noticed that the load average was very high on my aws ec2 instance.
The first thing i did, was run TOP command: which showed me the following:
Ntop – taking 105 % cpu and 500MB !!!!
Now thats Fishy !!
I googled and found out these two links which suggested that NTOP is broken:
https://forum.pfsense.org/index.php?topic=2554.0
&
https://bugs.launchpad.net/ubuntu/+source/ntop/+bug/461141
So i proceeded to stop ntop, but stop failed, so i just killed it !
kill -9 <ntop_pid>
and
wallah the load averages returned to normal 🙂
Symptoms:
- Ntop running for a while.
- load average slowly increasing
- increase in network traffic