HBASE-29949 Downgrade info log in GlobalMetricRegistriesAdapter (#7831)

Signed-off-by: Nihal Jain <nihaljain@apache.org>
Signed-off-by: Duo Zhang <zhangduo@apache.org>

Author: liuxiaocs7

hbase-hadoop-compat/src/main/java/org/apache/hadoop/hbase/metrics/impl/GlobalMetricRegistriesAdapter.java

@@ -132,7 +132,9 @@ private void doRun() {
         }
         // register this as a MetricSource under different JMX Context'es.
         MetricsSourceAdapter adapter = new MetricsSourceAdapter(registry);
-        LOG.info("Registering " + info.getMetricsJmxContext() + " " + info.getMetricsDescription());
+        if (LOG.isDebugEnabled()) {
+          LOG.debug("Registering {} {}", info.getMetricsJmxContext(), info.getMetricsDescription());
+        }
         DefaultMetricsSystem.instance().register(info.getMetricsJmxContext(),
           info.getMetricsDescription(), adapter);
         registeredSources.put(info, adapter);