keith-turner commented on issue #4511:
URL: https://github.com/apache/accumulo/issues/4511#issuecomment-2447760530
> What if you had a Thread in the tserver that maintained the aggregate
Meters and removed them from the MeterRegistry when no tablets for the table
are being hosted?
I tried to do something like this and ran into problems with MeterFilters.
I was trying to support the following functionality in my initial experiment.
* Accumulo has some per table meters. When a tablet server or scan server
no longer has tablets for a table it will eventually remove meters related to
that table from the registry. This removal was done by a scheduled task in the
experimental branch.
* If a user does not want per table meters, then they could use
`MeterFilter.ignoreTags()` to remove the tableId tags when setting up their
registries.
While trying to support the above workflow I found two problems with
`MeterFilter.ignoreTags()`. First was micrometer issue 5607 which caused
metrics to be lost. The second issue I found is the one I mentioned with two
or more gauges in an earlier comment where data is lost.
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