YARN-4544. All the log messages about rolling monitoring interval are shown with WARN level. Contributed by Takashi Ohnishi.

(cherry picked from commit 52b77577c44538c26fb9d0144f0b280be3593a38)
(cherry picked from commit 3905435d3d592b980425169bf1355d3d2b5c616f)

hadoop-yarn-project/CHANGES.txt

@@ -565,6 +565,9 @@ Release 2.8.0 - UNRELEASED
 
     YARN-4098. Document ApplicationPriority feature. (Rohith Sharma K S via jianhe)
 
+    YARN-4544. All the log messages about rolling monitoring interval are
+    shown with WARN level. (Takashi Ohnishi via aajisaka)
+
   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/logaggregation/AppLogAggregatorImpl.java

@@ -189,12 +189,12 @@ public class AppLogAggregatorImpl implements AppLogAggregator {
       }
     } else {
       if (configuredRollingMonitorInterval <= 0) {
-        LOG.warn("rollingMonitorInterval is set as "
+        LOG.info("rollingMonitorInterval is set as "
             + configuredRollingMonitorInterval + ". "
-            + "The log rolling mornitoring interval is disabled. "
+            + "The log rolling monitoring interval is disabled. "
             + "The logs will be aggregated after this application is finished.");
       } else {
-        LOG.warn("rollingMonitorInterval is set as "
+        LOG.info("rollingMonitorInterval is set as "
             + configuredRollingMonitorInterval + ". "
             + "The logs will be aggregated every "
             + configuredRollingMonitorInterval + " seconds");