YARN-3424. Change logs for ContainerMonitorImpl's resourse monitoring from info to debug. Contributed by Anubhav Dhoot.

(cherry picked from commit c69ba81497)

hadoop-yarn-project/CHANGES.txt

@@ -43,6 +43,9 @@ Release 2.8.0 - UNRELEASED
 
     YARN-3428. Debug log resources to be localized for a container. (kasha)
 
+    YARN-3424. Change logs for ContainerMonitorImpl's resourse monitoring
+    from info to debug. (Anubhav Dhoot via ozawa)
+
   OPTIMIZATIONS
 
     YARN-3339. TestDockerContainerExecutor should pull a single image and not

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/monitor/ContainersMonitorImpl.java

@@ -455,11 +455,14 @@ public class ContainersMonitorImpl extends AbstractService implements
             long curRssMemUsageOfAgedProcesses = pTree.getRssMemorySize(1);
             long vmemLimit = ptInfo.getVmemLimit();
             long pmemLimit = ptInfo.getPmemLimit();
-            LOG.info(String.format(
-                "Memory usage of ProcessTree %s for container-id %s: ",
-                     pId, containerId.toString()) +
-                formatUsageString(
-                    currentVmemUsage, vmemLimit, currentPmemUsage, pmemLimit));
+            if (LOG.isDebugEnabled()) {
+              LOG.debug(String.format(
+                  "Memory usage of ProcessTree %s for container-id %s: ",
+                  pId, containerId.toString()) +
+                  formatUsageString(
+                      currentVmemUsage, vmemLimit,
+                      currentPmemUsage, pmemLimit));
+            }
 
             // Add usage to container metrics
             if (containerMetricsEnabled) {