Description of problem:
When importing multiple new DVs using dataSources all at once the some of the importer pods are crashing on OOMKilled Error, making the import process restart. this is slowly being stabilized as there are less DVs to be imported

Version-Release number of selected component (if applicable):
all 4.11 versions

How reproducible:
100%

Steps to Reproduce:
1. Start 6 CronJobs of importing DVs at once
2.
3.

Actual results:
The imports takes more then 45 minutes because of repeated restarts

Expected results:
The imports should be completed without the importerPod crashing

Additional info:
The importerPod is set with a limit memory of 600M, we should check if increasing the limit memory of the importerPods will stabilize this process.