DomGarguilo commented on PR #4894:
URL: https://github.com/apache/accumulo/pull/4894#issuecomment-2364050238

   > So it seems like some things used to hang around for 15 minutes in the 
monitor display even after they were gone?
   
   Yea, so after looking at the code a bit more I think that the purpose of the 
age-off logic was to remove entries whose server was no longer present. The 
code that collects this data iterates through each server returned from 
`context.instanceOperations().getTabletServers()` and uses the HostAndPort of 
that server as the key in the map. So if there is new data for that server, the 
old data will just be replaced, but in the case where there is some data for a 
server and then that server dies, then it will not be replaced by anything. So 
after 15 mins, if the server did not come back up, those entries will be aged 
off. It seems like we want to keep this functionality so I'm going to work on 
adding this age-off functionality back.


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