[Pulsar JVM Dashboard] Zookeeper show No Data on column direct memory ?

[lthedung]

Describe the bug

To monitor a Pulsar cluster, I used grafana and in the Pulsar JVM dashboard, Zookeeper Direct Memory is show No Data. While other dashboards have data such as Bookie, Broker, Recovery.

I want to know why Zookeeper Metrics has no data for direct memory. I researched the document but did not find information about zookeeper metrics. Can you help me?

Zookeeper

Broker

Recovery

Grafana Overview

[eolivelli]

which version of Pulsar ?
which dashboards are you using ?

[lthedung]

Pulsar version 2.9.2
Dashboard grafana