[Discover][Field statistics] Number of searches in SearchSession Management

[kertal]

Kibana version:
8.0-rc1

Original install method (e.g. download page, yum, from source, etc.):
Cloud

Describe the bug:

When using search sessions in Discover's Field statistics tab with a large dataset, I've encountered a mismatch between the number of searches in the management session. So when saving the session and switching to management, I've got 2 searches. Then, after opening the search session, and returning to management, it were 81 searches (That's correct).
It wasn't always the case, but I also encountered a state where the session was marked as Complete, but when I returned to Discover I got a popup that it was still running.

discover-field-stats-search-session.mp4

[elasticmachine]

Pinging @elastic/kibana-app-services (Team:AppServicesUx)

[Dosant]

but when I returned to Discover I got a popup that it was still running.

Sometimes this could happen because when you restore a session, client side cache kicks in: #106074 (comment)

To make sure this is not happening when reproducing the bug - suggest to reload the page before navigating from search session management (to purge client side cache)

I've got 2 searches. Then, after opening the search session, and returning to management, it were 81 searches (That's correct).
It wasn't always the case, but I also encountered a state where the session was marked as Complete, but when I returned to Discover I got a popup that it was still running.

We have this problem that only searches that were started during your original session are added into search session object.
Meaning that if you saved and left before all your field statists requests kicked in - you won't get them as part of the session.
When you restore - you will restore a "part" of the session (first 2 requests) and all next requests will be started from scratch and you'll see a popup.
here is issue: #97825
and here is specifically about "complete" label: #105061

[kertal]

ok , I see, so I think this is nothing new, so it can be closed, right?

[Dosant]

Yes, looks like all is known.
Good to know about this newish use-case though 👍