[ML] Anomaly Explorer charts do not obey the time picker range

[richcollier]

Kibana version:
7.8

When viewing several jobs with a wide variety of bucket spans (1m to 1h) - I've noticed that the thumbnail charts are often "squished" and show an odd time range that isn't governed by the global time-picker on the page. The end result looks like this:

Another aspect being ignored (or at least not taken into account) is when the user clicks on a tile in the swimlane, but also limits the range of time being investigated by the user.

However, I can sometimes get the charts to display something more sensible if I change the Severity Threshold setting:

But, this behavior is also inconsistent (doesn't always "fix" things).

Seems like we need to re-consider how time ranges in the thumbnails are really supposed to work in different situations.

[elasticmachine]

Pinging @elastic/ml-ui (:ml)

[peteharverson]

Digging into this one a bit more has shown there are two issues that need fixing:

1. The anomaly charts should obey the min / max set by the time picker on the Anomaly Explorer page.
2. The time range of the charts is currently controlled by the job with the maximum bucket span, whereas it should be governed by the minimum bucket span. This leads to effects such as this, displaying charts from two jobs with bucket spans of 1m and 1h, where the chart for the 1m job ends up with far more points (7200) than the designed maximum of 500 points:

[peteharverson]

Fix to ensure the anomaly charts obey the time range of the time picker is in for 7.10.0 - #80317

[pheyos]

I think the wording of the tooltip could be a bit confusing because in Kibana we usually mean something in the Dashboard app when talking about a dashboard (although the anomaly explorer technically is a dashboard).

[peteharverson]

Closing as fixed by #80317 (7.10.0) and #81291 (7.10.1).