From bcdb3826006353b6926c4e8497eb5de80543f821 Mon Sep 17 00:00:00 2001
From: Varun Saxena <varunsaxena@apache.org>
Date: Wed, 18 May 2016 19:33:14 +0530
Subject: [PATCH] YARN-5096. timelinereader has a lot of logging that's not
 useful. (Sangjin Lee via Varun Saxena)

---
 .../server/timelineservice/storage/common/ColumnHelper.java   | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice/src/main/java/org/apache/hadoop/yarn/server/timelineservice/storage/common/ColumnHelper.java b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice/src/main/java/org/apache/hadoop/yarn/server/timelineservice/storage/common/ColumnHelper.java
index 4adb413a4ab..dff677bfde4 100644
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice/src/main/java/org/apache/hadoop/yarn/server/timelineservice/storage/common/ColumnHelper.java
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice/src/main/java/org/apache/hadoop/yarn/server/timelineservice/storage/common/ColumnHelper.java
@@ -194,7 +194,9 @@ public class ColumnHelper<T> {
             .entrySet()) {
           String columnName = null;
           if (columnPrefixBytes == null) {
-            LOG.info("null prefix was specified; returning all columns");
+            if (LOG.isDebugEnabled()) {
+              LOG.debug("null prefix was specified; returning all columns");
+            }
             // Decode the spaces we encoded in the column name.
             columnName = Separator.decode(entry.getKey(), Separator.SPACE);
           } else {