| # Licensed to the Apache Software Foundation (ASF) under one or more |
| # contributor license agreements. See the NOTICE file distributed with |
| # this work for additional information regarding copyright ownership. |
| # The ASF licenses this file to You under the Apache License, Version 2.0 |
| # (the "License"); you may not use this file except in compliance with |
| # the License. You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| |
| # included in all the hadoop scripts with source command |
| # should not be executable directly |
| # also should not be passed any arguments, since we need original $* |
| |
| # Resolve links ($0 may be a softlink) and convert a relative path |
| # to an absolute path. NB: The -P option requires bash built-ins |
| # or POSIX:2001 compliant cd and pwd. |
| |
| # HADOOP_CLASSPATH Extra Java CLASSPATH entries. |
| # |
| # HADOOP_USER_CLASSPATH_FIRST When defined, the HADOOP_CLASSPATH is |
| # added in the beginning of the global |
| # classpath. Can be defined, for example, |
| # by doing |
| # export HADOOP_USER_CLASSPATH_FIRST=true |
| # |
| |
| this="${BASH_SOURCE-$0}" |
| common_bin=$(cd -P -- "$(dirname -- "$this")" && pwd -P) |
| script="$(basename -- "$this")" |
| this="$common_bin/$script" |
| |
| [ -f "$common_bin/hadoop-layout.sh" ] && . "$common_bin/hadoop-layout.sh" |
| |
| HADOOP_COMMON_DIR=${HADOOP_COMMON_DIR:-"share/hadoop/common"} |
| HADOOP_COMMON_LIB_JARS_DIR=${HADOOP_COMMON_LIB_JARS_DIR:-"share/hadoop/common/lib"} |
| HADOOP_COMMON_LIB_NATIVE_DIR=${HADOOP_COMMON_LIB_NATIVE_DIR:-"lib/native"} |
| HDFS_DIR=${HDFS_DIR:-"share/hadoop/hdfs"} |
| HDFS_LIB_JARS_DIR=${HDFS_LIB_JARS_DIR:-"share/hadoop/hdfs/lib"} |
| YARN_DIR=${YARN_DIR:-"share/hadoop/yarn"} |
| YARN_LIB_JARS_DIR=${YARN_LIB_JARS_DIR:-"share/hadoop/yarn/lib"} |
| MAPRED_DIR=${MAPRED_DIR:-"share/hadoop/mapreduce"} |
| MAPRED_LIB_JARS_DIR=${MAPRED_LIB_JARS_DIR:-"share/hadoop/mapreduce/lib"} |
| |
| # the root of the Hadoop installation |
| # See HADOOP-6255 for directory structure layout |
| HADOOP_DEFAULT_PREFIX=$(cd -P -- "$common_bin"/.. && pwd -P) |
| HADOOP_PREFIX=${HADOOP_PREFIX:-$HADOOP_DEFAULT_PREFIX} |
| export HADOOP_PREFIX |
| |
| #check to see if the conf dir is given as an optional argument |
| if [ $# -gt 1 ] |
| then |
| if [ "--config" = "$1" ] |
| then |
| shift |
| confdir=$1 |
| shift |
| HADOOP_CONF_DIR=$confdir |
| fi |
| fi |
| |
| # Allow alternate conf dir location. |
| if [ -e "${HADOOP_PREFIX}/conf/hadoop-env.sh" ]; then |
| DEFAULT_CONF_DIR="conf" |
| else |
| DEFAULT_CONF_DIR="etc/hadoop" |
| fi |
| |
| export HADOOP_CONF_DIR="${HADOOP_CONF_DIR:-$HADOOP_PREFIX/$DEFAULT_CONF_DIR}" |
| |
| # User can specify hostnames or a file where the hostnames are (not both) |
| if [[ ( "$HADOOP_SLAVES" != '' ) && ( "$HADOOP_SLAVE_NAMES" != '' ) ]] ; then |
| echo \ |
| "Error: Please specify one variable HADOOP_SLAVES or " \ |
| "HADOOP_SLAVE_NAME and not both." |
| exit 1 |
| fi |
| |
| # Process command line options that specify hosts or file with host |
| # list |
| if [ $# -gt 1 ] |
| then |
| if [ "--hosts" = "$1" ] |
| then |
| shift |
| export HADOOP_SLAVES="${HADOOP_CONF_DIR}/$$1" |
| shift |
| elif [ "--hostnames" = "$1" ] |
| then |
| shift |
| export HADOOP_SLAVE_NAMES=$1 |
| shift |
| fi |
| fi |
| |
| # User can specify hostnames or a file where the hostnames are (not both) |
| # (same check as above but now we know it's command line options that cause |
| # the problem) |
| if [[ ( "$HADOOP_SLAVES" != '' ) && ( "$HADOOP_SLAVE_NAMES" != '' ) ]] ; then |
| echo \ |
| "Error: Please specify one of --hosts or --hostnames options and not both." |
| exit 1 |
| fi |
| |
| cygwin=false |
| case "`uname`" in |
| CYGWIN*) cygwin=true;; |
| esac |
| |
| if [ -f "${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) |
| if [ -n "$bindv6only" ] && [ "$bindv6only" -eq "1" ] && [ "$HADOOP_ALLOW_IPV6" != "yes" ] |
| then |
| echo "Error: \"net.ipv6.bindv6only\" is set to 1 - Java networking could be broken" |
| echo "For more info: http://wiki.apache.org/hadoop/HadoopIPv6" |
| exit 1 |
| fi |
| |
| # Newer versions of glibc use an arena memory allocator that causes virtual |
| # memory usage to explode. This interacts badly with the many threads that |
| # we use in Hadoop. Tune the variable down to prevent vmem explosion. |
| export MALLOC_ARENA_MAX=${MALLOC_ARENA_MAX:-4} |
| |
| # Attempt to set JAVA_HOME if it is not set |
| if [[ -z $JAVA_HOME ]]; then |
| # On OSX use java_home (or /Library for older versions) |
| if [ "Darwin" == "$(uname -s)" ]; then |
| if [ -x /usr/libexec/java_home ]; then |
| export JAVA_HOME=($(/usr/libexec/java_home)) |
| else |
| export JAVA_HOME=(/Library/Java/Home) |
| fi |
| fi |
| |
| # Bail if we did not detect it |
| if [[ -z $JAVA_HOME ]]; then |
| echo "Error: JAVA_HOME is not set and could not be found." 1>&2 |
| exit 1 |
| fi |
| fi |
| |
| JAVA=$JAVA_HOME/bin/java |
| # some Java parameters |
| JAVA_HEAP_MAX=-Xmx1000m |
| |
| # check envvars which might override default args |
| if [ "$HADOOP_HEAPSIZE" != "" ]; then |
| #echo "run with heapsize $HADOOP_HEAPSIZE" |
| JAVA_HEAP_MAX="-Xmx""$HADOOP_HEAPSIZE""m" |
| #echo $JAVA_HEAP_MAX |
| fi |
| |
| # CLASSPATH initially contains $HADOOP_CONF_DIR |
| CLASSPATH="${HADOOP_CONF_DIR}" |
| |
| if [ "$HADOOP_USER_CLASSPATH_FIRST" != "" ] && [ "$HADOOP_CLASSPATH" != "" ] ; then |
| CLASSPATH=${CLASSPATH}:${HADOOP_CLASSPATH} |
| fi |
| |
| # so that filenames w/ spaces are handled correctly in loops below |
| IFS= |
| |
| if [ "$HADOOP_COMMON_HOME" = "" ]; then |
| if [ -d "${HADOOP_PREFIX}/$HADOOP_COMMON_DIR" ]; then |
| export HADOOP_COMMON_HOME=$HADOOP_PREFIX |
| fi |
| fi |
| |
| # for releases, add core hadoop jar & webapps to CLASSPATH |
| if [ -d "$HADOOP_COMMON_HOME/$HADOOP_COMMON_DIR/webapps" ]; then |
| CLASSPATH=${CLASSPATH}:$HADOOP_COMMON_HOME/$HADOOP_COMMON_DIR |
| fi |
| |
| if [ -d "$HADOOP_COMMON_HOME/$HADOOP_COMMON_LIB_JARS_DIR" ]; then |
| CLASSPATH=${CLASSPATH}:$HADOOP_COMMON_HOME/$HADOOP_COMMON_LIB_JARS_DIR'/*' |
| fi |
| |
| CLASSPATH=${CLASSPATH}:$HADOOP_COMMON_HOME/$HADOOP_COMMON_DIR'/*' |
| |
| # add user-specified CLASSPATH last |
| if [ "$HADOOP_USER_CLASSPATH_FIRST" = "" ] && [ "$HADOOP_CLASSPATH" != "" ]; then |
| CLASSPATH=${CLASSPATH}:${HADOOP_CLASSPATH} |
| fi |
| |
| # default log directory & file |
| if [ "$HADOOP_LOG_DIR" = "" ]; then |
| HADOOP_LOG_DIR="$HADOOP_PREFIX/logs" |
| fi |
| if [ "$HADOOP_LOGFILE" = "" ]; then |
| HADOOP_LOGFILE='hadoop.log' |
| fi |
| |
| # default policy file for service-level authorization |
| if [ "$HADOOP_POLICYFILE" = "" ]; then |
| HADOOP_POLICYFILE="hadoop-policy.xml" |
| fi |
| |
| # restore ordinary behaviour |
| unset IFS |
| |
| # cygwin path translation |
| if $cygwin; then |
| HADOOP_PREFIX=`cygpath -w "$HADOOP_PREFIX"` |
| HADOOP_LOG_DIR=`cygpath -w "$HADOOP_LOG_DIR"` |
| JAVA_LIBRARY_PATH=`cygpath -w "$JAVA_LIBRARY_PATH"` |
| fi |
| |
| # setup 'java.library.path' for native-hadoop code if necessary |
| |
| if [ -d "${HADOOP_PREFIX}/build/native" -o -d "${HADOOP_PREFIX}/$HADOOP_COMMON_LIB_NATIVE_DIR" ]; then |
| |
| if [ -d "${HADOOP_PREFIX}/$HADOOP_COMMON_LIB_NATIVE_DIR" ]; then |
| if [ "x$JAVA_LIBRARY_PATH" != "x" ]; then |
| JAVA_LIBRARY_PATH=${JAVA_LIBRARY_PATH}:${HADOOP_PREFIX}/$HADOOP_COMMON_LIB_NATIVE_DIR |
| else |
| JAVA_LIBRARY_PATH=${HADOOP_PREFIX}/$HADOOP_COMMON_LIB_NATIVE_DIR |
| fi |
| fi |
| fi |
| |
| # setup a default TOOL_PATH |
| TOOL_PATH="${TOOL_PATH:-$HADOOP_PREFIX/share/hadoop/tools/lib/*}" |
| |
| # cygwin path translation |
| if $cygwin; then |
| JAVA_LIBRARY_PATH=`cygpath -p "$JAVA_LIBRARY_PATH"` |
| fi |
| |
| HADOOP_OPTS="$HADOOP_OPTS -Dhadoop.log.dir=$HADOOP_LOG_DIR" |
| HADOOP_OPTS="$HADOOP_OPTS -Dhadoop.log.file=$HADOOP_LOGFILE" |
| HADOOP_OPTS="$HADOOP_OPTS -Dhadoop.home.dir=$HADOOP_PREFIX" |
| HADOOP_OPTS="$HADOOP_OPTS -Dhadoop.id.str=$HADOOP_IDENT_STRING" |
| HADOOP_OPTS="$HADOOP_OPTS -Dhadoop.root.logger=${HADOOP_ROOT_LOGGER:-INFO,console}" |
| if [ "x$JAVA_LIBRARY_PATH" != "x" ]; then |
| HADOOP_OPTS="$HADOOP_OPTS -Djava.library.path=$JAVA_LIBRARY_PATH" |
| export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$JAVA_LIBRARY_PATH |
| fi |
| HADOOP_OPTS="$HADOOP_OPTS -Dhadoop.policy.file=$HADOOP_POLICYFILE" |
| |
| # Disable ipv6 as it can cause issues |
| HADOOP_OPTS="$HADOOP_OPTS -Djava.net.preferIPv4Stack=true" |
| |
| # put hdfs in classpath if present |
| if [ "$HADOOP_HDFS_HOME" = "" ]; then |
| if [ -d "${HADOOP_PREFIX}/$HDFS_DIR" ]; then |
| export HADOOP_HDFS_HOME=$HADOOP_PREFIX |
| fi |
| fi |
| |
| if [ -d "$HADOOP_HDFS_HOME/$HDFS_DIR/webapps" ]; then |
| CLASSPATH=${CLASSPATH}:$HADOOP_HDFS_HOME/$HDFS_DIR |
| fi |
| |
| if [ -d "$HADOOP_HDFS_HOME/$HDFS_LIB_JARS_DIR" ]; then |
| CLASSPATH=${CLASSPATH}:$HADOOP_HDFS_HOME/$HDFS_LIB_JARS_DIR'/*' |
| fi |
| |
| CLASSPATH=${CLASSPATH}:$HADOOP_HDFS_HOME/$HDFS_DIR'/*' |
| |
| # put yarn in classpath if present |
| if [ "$HADOOP_YARN_HOME" = "" ]; then |
| if [ -d "${HADOOP_PREFIX}/$YARN_DIR" ]; then |
| export HADOOP_YARN_HOME=$HADOOP_PREFIX |
| fi |
| fi |
| |
| if [ -d "$HADOOP_YARN_HOME/$YARN_DIR/webapps" ]; then |
| CLASSPATH=${CLASSPATH}:$HADOOP_YARN_HOME/$YARN_DIR |
| fi |
| |
| if [ -d "$HADOOP_YARN_HOME/$YARN_LIB_JARS_DIR" ]; then |
| CLASSPATH=${CLASSPATH}:$HADOOP_YARN_HOME/$YARN_LIB_JARS_DIR'/*' |
| fi |
| |
| CLASSPATH=${CLASSPATH}:$HADOOP_YARN_HOME/$YARN_DIR'/*' |
| |
| # put mapred in classpath if present AND different from YARN |
| if [ "$HADOOP_MAPRED_HOME" = "" ]; then |
| if [ -d "${HADOOP_PREFIX}/$MAPRED_DIR" ]; then |
| export HADOOP_MAPRED_HOME=$HADOOP_PREFIX |
| fi |
| fi |
| |
| if [ "$HADOOP_MAPRED_HOME/$MAPRED_DIR" != "$HADOOP_YARN_HOME/$YARN_DIR" ] ; then |
| if [ -d "$HADOOP_MAPRED_HOME/$MAPRED_DIR/webapps" ]; then |
| CLASSPATH=${CLASSPATH}:$HADOOP_MAPRED_HOME/$MAPRED_DIR |
| fi |
| |
| if [ -d "$HADOOP_MAPRED_HOME/$MAPRED_LIB_JARS_DIR" ]; then |
| CLASSPATH=${CLASSPATH}:$HADOOP_MAPRED_HOME/$MAPRED_LIB_JARS_DIR'/*' |
| fi |
| |
| CLASSPATH=${CLASSPATH}:$HADOOP_MAPRED_HOME/$MAPRED_DIR'/*' |
| fi |
| |
| # cygwin path translation |
| if $cygwin; then |
| HADOOP_HDFS_HOME=`cygpath -w "$HADOOP_HDFS_HOME"` |
| fi |
| |
| # cygwin path translation |
| if $cygwin; then |
| TOOL_PATH=`cygpath -p -w "$TOOL_PATH"` |
| fi |
| |
| |