Grafana dashboard: JVM dashboard
Description: Complete dashboard using metrics from prometheus JMX exporter, with drill down per job > instance

Gist is [here](https://gist.github.com/chanjarster/3970a1c6fe8eaaad0046f8072fb37c1d)

Based on [JMX exporter prometheus](https://grafana.com/dashboards/7727).

Dashboard for `jvm_*` metrics which are exported by [JMX exporter](https://github.com/prometheus/jmx_exporter).

Prometheus with config example:

```yaml
scrape_configs:
  - job_name: 'java'
    static_configs:
    - targets: ['<host>:<port>']
```

You can change config file's `job_name` and dashboard's `job` constant variable correspondingly.

jmx-exporter config example:

```yaml
---   
lowercaseOutputLabelNames: true
lowercaseOutputName: true
whitelistObjectNames: ["java.lang:type=OperatingSystem"]
blacklistObjectNames: []
rules:
  - pattern: 'java.lang<type=OperatingSystem><>(committed_virtual_memory|free_physical_memory|free_swap_space|total_physical_memory|total_swap_space)_size:'
    name: os_$1_bytes
    type: GAUGE
    attrNameSnakeCase: true
  - pattern: 'java.lang<type=OperatingSystem><>((?!process_cpu_time)\w+):'
    name: os_$1
    type: GAUGE
    attrNameSnakeCase: true
```

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