Arango logs: "process is near the maximum number of memory mappings. current: 628544, maximum: 512000."

Question

On a single instance, running on a 8 core VM, we see the following log entry:

process is near the maximum number of memory mappings. current: 628544, maximum: 512000. it may be sensible to increase the maximum number of mappings per process

Arango did not crash so far but what do we have to do to tune the system?

Answer 1

You will need to run sysctl -w 'vm.max_map_count=2048000' before running arangodb. Do not forget to make this setting permanent.

For more info have a look into the documentation: https://www.arangodb.com/docs/stable/administration-reduce-memory-footprint.html