maxMapCount returns invalid argument error by initContainer

[jgongil]

Chart type
Memgraph Standalone

Chart version:
0.2.1

What happened?
Increasing the default maxMapCount above 524288 makes the init container to crash with sysctl: invalid argument.

Environment:

• AKS node: RAM size 384GB, vCPU: 48.
• Tested with repository: memgraph/memgraph-mage and repository: memgraph/memgraph , versions 3.2.0. and 3.2 respectively.

Relevant log output:
sysctl invalid argument

Workaround
It could be related to the expected amount of chars in the numeric value of the values.yaml file because encapsulating the figure with double quotes fixes the issue, e.g. maxMapCount: "4194304" instead of maxMapCount: 4194304 as in the default value.

[gitbuda]

Interesting, I guess we should update the docs on a few places, e.g.:

• https://memgraph.com/docs/database-management/system-configuration#recommended-values-for-the-vmmax_map_count-parameter
• https://memgraph.com/docs/getting-started/install-memgraph/kubernetes

🤔