Clanscan will eat all memory and cpu on an AWS t2.small box
danbuntu opened this issue · comments
Describe the bug
I have an upto date Ubuntu server version 22.04.4 running on AWS as a small instance - 1 cpu and 2gig of ram.
When I run clamscan against a file from the terminal with
clamscan testfile.txt
the cpu spikes to 100%, the memory is gobbled up and the server locks up entirely. I have to force reset it.
Is there any way to limit the memory usage or similar?
How to reproduce the problem
Bring up an AWS server t2.small using the 22.04 aws template
SSH to the server
run clamscan .
wait a minute and watch the server lock up
2GB is not enough RAM to run ClamAV.
https://docs.clamav.net/#recommended-system-requirements
Sorry!
3 gig jeepers
I think I might have solved the problem though. Turned out that AWS Ubuntu boxes don't have swap enabled be default. I created a 1 gig swap file and the scans now work - albeit with high resource usage whilst they run.
Our t2.small our development machines so I think this will be ok. The prod boxes are much bigger.
3 gig jeepers
I know 😞