Jan Novotný

Is there any fix planned?

Seems there is similar problem in `/opt/repository/org/mapdb/mapdb/3.0.7/mapdb-3.0.7-sources.jar!/org/mapdb/StoreWAL.kt:145` when detecting file corruption locks are not freed. When I call `volume.close()` before exception is thrown locks the problem is solved.

Hi, I think that changing license is much lesser problem than loosing the author of the library :( Unfortunatelly the library is developed no more. I'll discuss with colleagues if...

> I will be happy to help and build Zabbix template "evitaDB by Prom" We'll get in touch before we start working on this issue. ETA is the December 23...

We should also investigate this approach: - https://www.morling.dev/blog/rest-api-monitoring-with-custom-jdk-flight-recorder-events/ - https://www.infoq.com/presentations/jfr-observability/

Interesting slide - three pillars of observability:  I think it might be beneficial to provide a basic access to all three of them in evitaLab.

I'd suggest creating a prototype where: - try to implement example JFR events according to blog post: https://www.morling.dev/blog/rest-api-monitoring-with-custom-jdk-flight-recorder-events/ - create event that covers evitaDB `QueryPlan` execution - try to record...

It would be interesting also to test https://www.jaegertracing.io/ and its integration into https://grafana.com/docs/grafana/latest/datasources/jaeger/ - it's somehow similar to our https://github.com/FgForrest/evitaDB/issues/148 and we should discuss whether it makes sense to move...

This should help us too: https://plugins.jetbrains.com/plugin/20937-java-jfr-profiler

Notes from first prototype showdown and what needs to be added into the prototype: - how to filter JFR events to be generated = stored - maybe prepare an alternative...