YARN-2189. Admin service for cache manager. Addendum to sort entries

hadoop-yarn-project/hadoop-yarn/bin/yarn

@@ -35,8 +35,8 @@ function hadoop_usage
   echo "  resourcemanager                       run the ResourceManager"
   echo "  resourcemanager -format-state-store   deletes the RMStateStore"
   echo "  rmadmin                               admin tools"
-  echo "  sharedcachemanager                    run the SharedCacheManager daemon"
   echo "  scmadmin                              SharedCacheManager admin tools"
+  echo "  sharedcachemanager                    run the SharedCacheManager daemon"
   echo "  timelineserver                        run the timeline server"
   echo "  version                               print the version"
   echo " or"
@@ -152,6 +152,17 @@ case "${COMMAND}" in
     hadoop_debug "Append YARN_CLIENT_OPTS onto YARN_OPTS"
     YARN_OPTS="${YARN_OPTS} ${YARN_CLIENT_OPTS}"
   ;;
+  scmadmin)
+    CLASS='org.apache.hadoop.yarn.client.SCMAdmin'
+    hadoop_debug "Append YARN_CLIENT_OPTS onto YARN_OPTS"
+    YARN_OPTS="${YARN_OPTS} ${YARN_CLIENT_OPTS}"
+  ;;
+  sharedcachemanager)
+    supportdaemonization="true"
+    CLASS='org.apache.hadoop.yarn.server.sharedcachemanager.SharedCacheManager'
+    hadoop_debug "Append YARN_SHAREDCACHEMANAGER_OPTS onto YARN_OPTS"
+    YARN_OPTS="${YARN_OPTS} ${YARN_SHAREDCACHEMANAGER_OPTS}"
+  ;;
   timelineserver)
     supportdaemonization="true"
     CLASS='org.apache.hadoop.yarn.server.applicationhistoryservice.ApplicationHistoryServer'
@@ -162,15 +173,6 @@ case "${COMMAND}" in
       HADOOP_HEAPSIZE_MAX="${YARN_TIMELINESERVER_HEAPSIZE}"
     fi
   ;;
-  sharedcachemanager)
-    supportdaemonization="true"
-    CLASS='org.apache.hadoop.yarn.server.sharedcachemanager.SharedCacheManager'
-    YARN_OPTS="$YARN_OPTS $YARN_SHAREDCACHEMANAGER_OPTS"
-  ;;
-  scmadmin)
-    CLASS='org.apache.hadoop.yarn.client.SCMAdmin'
-    YARN_OPTS="$YARN_OPTS $YARN_CLIENT_OPTS"
-  ;;
   version)
     CLASS=org.apache.hadoop.util.VersionInfo
     hadoop_debug "Append YARN_CLIENT_OPTS onto YARN_OPTS"

hadoop-yarn-project/hadoop-yarn/conf/yarn-env.sh

@@ -133,4 +133,14 @@
 #
 #export YARN_PROXYSERVER_OPTS=
 
-
+###
+# Shared Cache Manager specific parameters
+###
+# Specify the JVM options to be used when starting the
+# shared cache manager server.
+# These options will be appended to the options specified as YARN_OPTS
+# and therefore may override any similar flags set in YARN_OPTS
+#
+# See ResourceManager for some examples
+#
+#export YARN_SHAREDCACHEMANAGER_OPTS=