[HDDS-3035] Add ability to enable Ratis metrics in OzoneManager

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.5.0
• Fix Version/s: 0.5.0
• Component/s: Ozone Manager
• Labels: pull-request-available
• Assignee: Siddharth Wagle
• Reporter: Aravindan Vijayan
• Created: 19/Feb/20 17:16
• Updated: 22/Feb/20 05:00
• Resolved: 22/Feb/20 05:00

Description

Whenever OM uses Ratis, we may need the ability to collect its metrics through OM JMX. This should be a straightforward change, similar to org.apache.hadoop.ozone.HddsDatanodeService#start().

  public void start() {

    //All the Ratis metrics (registered from now) will be published via JMX and
    //via the prometheus exporter (used by the /prom servlet
    MetricRegistries.global()
        .addReporterRegistration(MetricsReporting.jmxReporter());
    MetricRegistries.global().addReporterRegistration(
        registry -> CollectorRegistry.defaultRegistry.register(
            new RatisDropwizardExports(
                registry.getDropWizardMetricRegistry())));

Issue Links

• links to: GitHub Pull Request #570