OMMkiller terminated backup process

[emelianrus]

I'm trying use cron job to copy files from kubernetes to S3 and in kubernetes and got pod error OMMKilled
Looks like it slowly increase virtual memory and reaching pod limits.

Container limits set to: cpu 3. Memory: 5Gb
amount of copy files: 3401311
changing buffer memory didn't help
Am i doing something wrong?
or its memory leak issue?

[emelianrus]

pprof.pdf

[diasjorge]

I've had to play with the parallel argument. Setting parallel to 0 has caused me problems. In my tests setting --parallel to 20 uses about 500Mi