elasticsearch/docs/java-rest/high-level/ml/estimate-memory-usage.asciidoc

--
:api: estimate-memory-usage
:request: PutDataFrameAnalyticsRequest
:response: EstimateMemoryUsageResponse
--
[role="xpack"]
[id="{upid}-{api}"]
=== Estimate memory usage API

The Estimate memory usage API is used to estimate memory usage of {dfanalytics}.
Estimation results can be used when deciding the appropriate value for `model_memory_limit` setting later on.

The API accepts an +{request}+ object and returns an +{response}+.

[id="{upid}-{api}-request"]
==== Estimate memory usage Request

["source","java",subs="attributes,callouts,macros"]
--------------------------------------------------
include-tagged::{doc-tests-file}[{api}-request]
--------------------------------------------------
<1> Constructing a new request containing a {dataframe-analytics-config} for which memory usage estimation should be performed

include::../execution.asciidoc[]

[id="{upid}-{api}-response"]
==== Response

The returned +{response}+ contains the memory usage estimates.

["source","java",subs="attributes,callouts,macros"]
--------------------------------------------------
include-tagged::{doc-tests-file}[{api}-response]
--------------------------------------------------
<1> Estimated memory usage under the assumption that the whole {dfanalytics} should happen in memory (i.e. without overflowing to disk).
<2> Estimated memory usage under the assumption that overflowing to disk is allowed during {dfanalytics}.