Add max ram memory in node start cmd

[bogdanfazakas]

Fixes # .

Changes proposed in this PR:

• allow ocean node to use up to 28gb of ram if available instead of the default 8gb of memory

[paulo-ocean]

lgtm
but i wonder if we should change the specs/system requirements section (on the docs)
Currently we have:

- 1vcpu
- 2 GB ram
- 4 GB storage

According to the node docs we should put a lower number than the total available RAM
https://nodejs.org/api/cli.html#--max-old-space-sizesize-in-megabytes
In this case, for a 2GB RAM we are allowing the entire 2GB for garbage collection, but i guess we always have more than this anyway

[bogdanfazakas]

lgtm but i wonder if we should change the specs/system requirements section (on the docs) Currently we have:

- 1vcpu
- 2 GB ram
- 4 GB storage

According to the node docs we should put a lower number than the total available RAM https://nodejs.org/api/cli.html#--max-old-space-sizesize-in-megabytes In this case, for a 2GB RAM we are allowing the entire 2GB for garbage collection, but i guess we always have more than this anyway

i think the specs are fine, they are related to the vm rather the node app config, so in this case the process will use around 1.5 gb of ram max , like in the eg bellow for a vm with 2gb of ram avaialble