Error while updating search session <guid> Saved object <id> conflict

[LeeDr]

Kibana version: master

Elasticsearch version: master

Server OS version: Docker, oraclelinux-7, CentOS 7, maybe others

Browser version: Chrome

Browser OS version: Ubuntu

Original install method (e.g. download page, yum, from source, etc.): snapshot builds docker images, rpms

Describe the bug: Just checking Kibana logs after running integration tests and finding errors.

Steps to reproduce:

1. These errors seem to come at a point where we open a metricbeat dashboard, but I'll try to isolate it down to that and update here

Expected behavior: No errors in the log from search sessions under normal use

Screenshots (if relevant):

Errors in browser console (if relevant):

Provide logs and/or server output (if relevant):

NOTE: These are from 4 different Kibana installations on different OSs (notice the PIDs are all different).

19:55:56  {"type":"log","@timestamp":"2021-06-03T00:54:51+00:00","tags":["error","plugins","dataEnhanced","data_enhanced"],"pid":951,"message":"Error while updating search session a2806475-299b-444d-9392-4c6a980ab0d1: Saved object [search-session/a2806475-299b-444d-9392-4c6a980ab0d1] conflict"}
21:06:38  {"type":"log","@timestamp":"2021-06-03T02:06:14+00:00","tags":["error","plugins","dataEnhanced","data_enhanced"],"pid":3316,"message":"Error while updating search session 7f3f287d-e9cc-4b0d-ae62-e0582864a321: Saved object [search-session/7f3f287d-e9cc-4b0d-ae62-e0582864a321] conflict"}
21:43:09  {"type":"log","@timestamp":"2021-06-03T02:42:21+00:00","tags":["error","plugins","dataEnhanced","data_enhanced"],"pid":13614,"message":"Error while updating search session c19f321c-f47f-453c-a051-abc379cebfc5: Saved object [search-session/c19f321c-f47f-453c-a051-abc379cebfc5] conflict"}
21:57:53  {"type":"log","@timestamp":"2021-06-03T02:55:44+00:00","tags":["error","plugins","dataEnhanced","data_enhanced"],"pid":10354,"message":"Error while updating search session 31303ce6-a4b1-4bfd-8c26-974c1daf4bbb: Saved object [search-session/31303ce6-a4b1-4bfd-8c26-974c1daf4bbb] conflict"}

Any additional context:

[elasticmachine]

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

[elasticmachine]

Pinging @elastic/kibana-data-discovery (Team:DataDiscovery)

[sakurai-youhei]

#134983 would be related to this, IMHO. (Corrected the wrong link, sorry.)

[kertal]

Closing this because it's not planned to be resolved in the foreseeable future. It will be tracked in our Icebox and will be re-opened if our priorities change. Feel free to re-open if you think it should be melted sooner.