private void updateDeltaMBeanAndMetric(MetricsMBeanImpl mbean, String metricName, Map<String, Integer> update) {
    mbean.updateAll(update);
    Metrics.getOrCreateMapMetrics(metricName)
        .update(update);
  }
Collect and publish ACID and compaction related metrics.
Everything should be behind 2 feature flags: {@link MetastoreConf.ConfVars#METRICS_ENABLED} and
{@link MetastoreConf.ConfVars#METASTORE_ACIDMETRICS_THREAD_ON}.
standalone-metastore/metastore-server/src/main/java/org/apache/hadoop/hive/metastore/metrics/AcidMetricService.java