David Roberts 1500074cb2 [ML] Add method to find the established memory use for a job (elastic/x-pack-elasticsearch#2449)
"Established" memory use will be one of the building blocks for smarter node
allocation.

In order for a job to be considered to have established memory usage it must:
- Have generated at least 20 buckets of results
- Have generated at least one model size stats document
- Have low variability of model bytes in model size stats documents in the
  time period covered by the last 20 buckets, which is defined as having a
  coefficient of variation of no more than 0.1

Relates elastic/x-pack-elasticsearch#546

Original commit: elastic/x-pack-elasticsearch@5032eb01d8
2017-09-12 10:25:53 +01:00
..
2017-08-23 14:16:36 -04:00