[BUG] Current Document Count Not Updating Correctly in Index Management (for Rollover)

[m-mcleod]

Describe the bug
We're seeing an issue where the document count for an index (seen in the IM API or GUI) is not updating accurately (OpenDistro v1.8.0). It seems to stall at a given number until we go into Discover and actually load some of the data. Once we do this, the number will jump ahead to a number that appears to be correct.

We see the same numbers in the GET _cat/indices/* API response. That is, the number will not update there until we load the data in Discover, after which it will jump to a higher number that appears correct.

I notice also that Kibana usually will not load the data when I initially select the Index Pattern in Discover. It will tell me there are no logs in the last 15 minutes. After I refresh the page with the browser button, I will see there are actually several thousand logs in that time frame.

This is causing an issue with Index Management because the rollover action job is seeing the same unchanged number.

Other plugins installed
Standard fleet of ODFE plugins. Security enabled with LDAP.

Expected behavior
The document count seen in the IM module should be correct as of the last time the 5 minute job ran.