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From ka...@apache.org
Subject svn commit: r1572406 - in /hadoop/common/branches/branch-2/hadoop-yarn-project: CHANGES.txt hadoop-yarn/bin/yarn
Date Thu, 27 Feb 2014 02:19:13 GMT
Author: kasha
Date: Thu Feb 27 02:19:13 2014
New Revision: 1572406

URL: http://svn.apache.org/r1572406
Log:
YARN-1429. *nix: Allow a way for users to augment classpath of YARN daemons. (Jarek Jarcec
Cecho via kasha)

Modified:
    hadoop/common/branches/branch-2/hadoop-yarn-project/CHANGES.txt
    hadoop/common/branches/branch-2/hadoop-yarn-project/hadoop-yarn/bin/yarn

Modified: hadoop/common/branches/branch-2/hadoop-yarn-project/CHANGES.txt
URL: http://svn.apache.org/viewvc/hadoop/common/branches/branch-2/hadoop-yarn-project/CHANGES.txt?rev=1572406&r1=1572405&r2=1572406&view=diff
==============================================================================
--- hadoop/common/branches/branch-2/hadoop-yarn-project/CHANGES.txt (original)
+++ hadoop/common/branches/branch-2/hadoop-yarn-project/CHANGES.txt Thu Feb 27 02:19:13 2014
@@ -17,6 +17,9 @@ Release 2.5.0 - UNRELEASED
 
     YARN-1561. Fix a generic type warning in FairScheduler. (Chen He via junping_du)
 
+    YARN-1429. *nix: Allow a way for users to augment classpath of YARN daemons.
+    (Jarek Jarcec Cecho via kasha)
+
   OPTIMIZATIONS
 
   BUG FIXES 

Modified: hadoop/common/branches/branch-2/hadoop-yarn-project/hadoop-yarn/bin/yarn
URL: http://svn.apache.org/viewvc/hadoop/common/branches/branch-2/hadoop-yarn-project/hadoop-yarn/bin/yarn?rev=1572406&r1=1572405&r2=1572406&view=diff
==============================================================================
--- hadoop/common/branches/branch-2/hadoop-yarn-project/hadoop-yarn/bin/yarn (original)
+++ hadoop/common/branches/branch-2/hadoop-yarn-project/hadoop-yarn/bin/yarn Thu Feb 27 02:19:13
2014
@@ -22,7 +22,12 @@
 #
 #   JAVA_HOME        The java implementation to use.  Overrides JAVA_HOME.
 #
-#   YARN_CLASSPATH Extra Java CLASSPATH entries.
+#   YARN_USER_CLASSPATH Additional user CLASSPATH entries.
+#
+#   YARN_USER_CLASSPATH_FIRST  If set to non empty value then the user classpath
+#                              specified in YARN_USER_CLASSPATH will be
+#                              appended at the beginning of YARN's final
+#                              classpath instead of at the end.
 #
 #   YARN_HEAPSIZE  The maximum amount of heap to use, in MB. 
 #                    Default is 1000.
@@ -163,6 +168,17 @@ fi
 CLASSPATH=${CLASSPATH}:$HADOOP_YARN_HOME/${YARN_DIR}/*
 CLASSPATH=${CLASSPATH}:$HADOOP_YARN_HOME/${YARN_LIB_JARS_DIR}/*
 
+# Add user defined YARN_USER_CLASSPATH to the class path (if defined)
+if [ -n "$YARN_USER_CLASSPATH" ]; then
+  if [ -n "$YARN_USER_CLASSPATH_FIRST" ]; then
+    # User requested to add the custom entries at the beginning
+    CLASSPATH=${YARN_USER_CLASSPATH}:${CLASSPATH}
+  else
+    # By default we will just append the extra entries at the end
+    CLASSPATH=${CLASSPATH}:${YARN_USER_CLASSPATH}
+  fi
+fi
+
 # so that filenames w/ spaces are handled correctly in loops below
 IFS=
 
@@ -249,4 +265,3 @@ if [ "x$JAVA_LIBRARY_PATH" != "x" ]; the
 fi  
 
 exec "$JAVA" -Dproc_$COMMAND $JAVA_HEAP_MAX $YARN_OPTS -classpath "$CLASSPATH" $CLASS "$@"
-fi



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