Re: filterCache ramBytesUsed monitoring statistics go negative

[Shawn Heisey <ap...@elyograg.org>]

On 11/2/2020 4:27 AM, Dawn wrote:
> 	filterCache ramBytesUsed monitoring statistics go negative.
> 	Is there a special meaning, or is there a statistical problem
> 	When present the list, can sort it by key. Solr7 is like this, easy to view.

When problems like this surface, it's usually because the code uses an 
"int" variable somewhere instead of a "long".  All numeric variables in 
Java are signed, and an "int" can only go up to a little over 2 billion 
before the numbers start going negative.

The master code branch looks like it's fine.  What is the exact version 
of Solr you're using?  With that information, I can check the relevant code.

Maybe simply upgrading to a much newer version would take care of this 
for you.

Thanks,
Shawn