Limit Kibana server memory to 512mb by default

[rashidkpc]

It looks like the node default on 64gb machines is 4GB, which is way too much. Elasticsearch's default is 1GB and Kibana shouldn't need anywhere close to that. I propose we limit it to 512mb and let users raise it as needed.

[lefebsy]

+1

[johanatan]

Is this done? Is there any way for users of the current latest release to limit Kibana's memory requirements?

[sybrenstuvel]

I'm wondering the same thing as @johanatan, there doesn't seem to be any mention of memory usage in Kibana's documentation (I'm gladly proven wrong about this btw).

[dobesv]

See #5451

[tylersmalley]

I am closing this as we have long since stabilized the memory usage and are no longer hitting the max-old-space-size.