HADOOP-8767. Secondary namenode is started on slave nodes instead of master nodes. Contributed by Giovanni Delussu.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1383560 13f79535-47bb-0310-9956-ffa450edef68

hadoop-common-project/hadoop-common/CHANGES.txt

@@ -205,6 +205,9 @@ Trunk (Unreleased)
     HADOOP-8786. HttpServer continues to start even if AuthenticationFilter
     fails to init (todd)
 
+    HADOOP-8767. Secondary namenode is started on slave nodes instead of
+    master nodes. (Giovanni Delussu via suresh)
+
   OPTIMIZATIONS
 
     HADOOP-7761. Improve the performance of raw comparisons. (todd)

hadoop-common-project/hadoop-common/src/main/bin/hadoop-config.sh

@@ -74,6 +74,10 @@ fi
 
 export HADOOP_CONF_DIR="${HADOOP_CONF_DIR:-$HADOOP_PREFIX/$DEFAULT_CONF_DIR}"
 
+if [ -f "${HADOOP_CONF_DIR}/hadoop-env.sh" ]; then
+  . "${HADOOP_CONF_DIR}/hadoop-env.sh"
+fi
+
 # User can specify hostnames or a file where the hostnames are (not both)
 if [[ ( "$HADOOP_SLAVES" != '' ) && ( "$HADOOP_SLAVE_NAMES" != '' ) ]] ; then
   echo \
@@ -113,9 +117,6 @@ case "`uname`" in
 CYGWIN*) cygwin=true;;
 esac
 
-if [ -f "${HADOOP_CONF_DIR}/hadoop-env.sh" ]; then
-  . "${HADOOP_CONF_DIR}/hadoop-env.sh"
-fi
 
 # check if net.ipv6.bindv6only is set to 1
 bindv6only=$(/sbin/sysctl -n net.ipv6.bindv6only 2> /dev/null)

hadoop-common-project/hadoop-common/src/main/bin/slaves.sh

@@ -42,9 +42,6 @@ DEFAULT_LIBEXEC_DIR="$bin"/../libexec
 HADOOP_LIBEXEC_DIR=${HADOOP_LIBEXEC_DIR:-$DEFAULT_LIBEXEC_DIR}
 . $HADOOP_LIBEXEC_DIR/hadoop-config.sh
 
-if [ -f "${HADOOP_CONF_DIR}/hadoop-env.sh" ]; then
-  . "${HADOOP_CONF_DIR}/hadoop-env.sh"
-fi
 
 # Where to start the script, see hadoop-config.sh
 # (it set up the variables based on command line options)