HDFS-3803. Change BlockPoolSliceScanner chatty INFO log to DEBUG. Contributed by Andrew Purtell

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1373174 13f79535-47bb-0310-9956-ffa450edef68

hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt

@@ -117,6 +117,9 @@ Trunk (unreleased changes)
     HDFS-3723. Add support -h, -help to all the commands. (Jing Zhao via
     suresh)
 
+    HDFS-3803. Change BlockPoolSliceScanner chatty INFO log to DEBUG.
+    (Andrew Purtell via suresh)
+
   OPTIMIZATIONS
 
   BUG FIXES

hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/BlockPoolSliceScanner.java

@@ -554,9 +554,11 @@ class BlockPoolSliceScanner {
   }
   
   private synchronized void startNewPeriod() {
-    LOG.info("Starting a new period : work left in prev period : "
+    if (LOG.isDebugEnabled()) {
+      LOG.debug("Starting a new period : work left in prev period : "
         + String.format("%.2f%%", totalBytesToScan == 0 ? 0
             : (bytesLeft * 100.0) / totalBytesToScan));
+    }
 
     // reset the byte counts :
     bytesLeft = totalBytesToScan;