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[DOCS] Breaking change for Watcher metric stats names #37728

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33 changes: 23 additions & 10 deletions docs/reference/migration/migrate_6_6.asciidoc
Original file line number Diff line number Diff line change
Expand Up @@ -7,13 +7,35 @@
This section discusses the changes that you need to be aware of when migrating
your application to Elasticsearch 6.6.

* <<breaking_66_ml_changes>>
* <<breaking_66_api_changes>>
* <<breaking_66_mapping_changes>>
* <<breaking_66_search_changes>>
* <<breaking_66_setting_changes>>

See also <<release-highlights>> and <<es-release-notes>>.

[float]
[[breaking_66_api_changes]]
=== API changes

[float]
==== Machine learning API changes

The get jobs API and get job stats API can retrieve a maximum of 10,000 jobs.
Likewise, the get datafeeds API and get datafeed stats API can retrieve a
maximum of 10,000 datafeeds. Prior to version 6.6, there were no limits on the
results from these APIs.

[float]
==== {watcher} API changes

If you used the `metric` parameter with the
{ref}/watcher-api-stats.html[stats API], the response contained incorrect labels,
which are fixed in 6.6 and later releases. If you choose to retrieve
`queued_watches` metrics, it now returns a `queued_watches` list instead of a `current_watches` list. Likewise, if you retrieve `pending_watches` metrics, it
returns a `current_watches` list instead of a `queued_watches` list. The
`pending_watches` metric is deprecated; use `current_watches` instead.

[float]
[[breaking_66_search_changes]]
=== Search changes
Expand Down Expand Up @@ -142,12 +164,3 @@ previously created indexes.
The following type parameters are deprecated for the `geo_shape` field type: `tree`,
`precision`, `tree_levels`, `distance_error_pct`, `points_only`, and `strategy`. They
will be removed in a future version.

[float]
[[breaking_66_ml_changes]]
=== Machine learning changes

The get jobs API and get job stats API can retrieve a maximum of 10,000 jobs.
Likewise, the get datafeeds API and get datafeed stats API can retrieve a
maximum of 10,000 datafeeds. Prior to version 6.6, there were no limits on the
results from these APIs.