We've recently upgraded to Neo4j v4.4.19 from v4.4.15.
We monitor the <prefix>.vm.heap.used
metric. Here are the measurements using v4.4.15: (see reply).
The usage is stable at ~300MB.
After upgrading to v4.4.19, we see fluctuating spikes in usage:
Spikes up to 4GB. We disabled all services communicating with Neo4j and still see this issue.
From the v4.4.17 release notes, it includes "Fix reporting of JVM memory metrics". What does that fix include exactly? Was the previous metric being reported incorrectly?
Any help would be appreciated!