YARN-1870. FileInputStream is not closed in ProcfsBasedProcessTree#constructProcessSMAPInfo. (Fengdong Yu via junping_du)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1588324 13f79535-47bb-0310-9956-ffa450edef68

hadoop-yarn-project/CHANGES.txt

@@ -53,6 +53,9 @@ Release 2.5.0 - UNRELEASED
     YARN-1923. Make Fair Scheduler resource ratio calculations terminate faster
     (Anubhav Dhoot via Sandy Ryza)
 
+    YARN-1870. FileInputStream is not closed in ProcfsBasedProcessTree#constructProcessSMAPInfo. 
+    (Fengdong Yu via junping_du)
+
   OPTIMIZATIONS
 
   BUG FIXES 

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/util/ProcfsBasedProcessTree.java

@@ -20,7 +20,6 @@ package org.apache.hadoop.yarn.util;
 
 import java.io.BufferedReader;
 import java.io.File;
-import java.io.FileInputStream;
 import java.io.FileNotFoundException;
 import java.io.FileReader;
 import java.io.IOException;
@@ -736,7 +735,7 @@ public class ProcfsBasedProcessTree extends ResourceCalculatorProcessTree {
       fReader = new FileReader(file);
       in = new BufferedReader(fReader);
       ProcessSmapMemoryInfo memoryMappingInfo = null;
-      List<String> lines = IOUtils.readLines(new FileInputStream(file));
+      List<String> lines = IOUtils.readLines(in);
       for (String line : lines) {
         line = line.trim();
         try {