| # 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. |
| |
| # Set Hadoop-specific environment variables here. |
| |
| # The only required environment variable is JAVA_HOME. All others are |
| # optional. When running a distributed configuration it is best to |
| # set JAVA_HOME in this file, so that it is correctly defined on |
| # remote nodes. |
| |
| # The java implementation to use. |
| export JAVA_HOME=/usr/lib/jvm/jre |
| |
| export HADOOP_LOG_DIR=/var/log/hadoop |
| export HADOOP_PID_DIR=/var/run/hadoop |
| |
| # The jsvc implementation to use. Jsvc is required to run secure datanodes |
| # that bind to privileged ports to provide authentication of data transfer |
| # protocol. Jsvc is not required if SASL is configured for authentication of |
| # data transfer protocol using non-privileged ports. |
| #export JSVC_HOME=${JSVC_HOME} |
| |
| export HADOOP_CONF_DIR=${HADOOP_CONF_DIR:-"/etc/hadoop"} |
| |
| # Extra Java CLASSPATH elements. Automatically insert capacity-scheduler. |
| for f in $HADOOP_HOME/contrib/capacity-scheduler/*.jar; do |
| if [ "$HADOOP_CLASSPATH" ]; then |
| export HADOOP_CLASSPATH=$HADOOP_CLASSPATH:$f |
| else |
| export HADOOP_CLASSPATH=$f |
| fi |
| done |
| |
| # The maximum amount of heap to use, in MB. Default is 1000. |
| #export HADOOP_HEAPSIZE= |
| #export HADOOP_NAMENODE_INIT_HEAPSIZE="" |
| |
| # Extra Java runtime options. Empty by default. |
| export HADOOP_OPTS="$HADOOP_OPTS -Djava.security.krb5.realm= -Djava.security.krb5.kdc= -Djava.net.preferIPv4Stack=true" |
| |
| # Command specific options appended to HADOOP_OPTS when specified |
| export HADOOP_NAMENODE_OPTS="-Xmx256m -Dhadoop.log.port=9096 -Dhadoop.security.logger=${HADOOP_SECURITY_LOGGER:-INFO,RFAS} -Dhdfs.audit.logger=${HDFS_AUDIT_LOGGER:-INFO,NullAppender} $HADOOP_NAMENODE_OPTS" |
| export HADOOP_DATANODE_OPTS="-Dhadoop.log.port=9098 -Dhadoop.security.logger=ERROR,RFAS $HADOOP_DATANODE_OPTS" |
| |
| export HADOOP_SECONDARYNAMENODE_OPTS="-Xmx256m -Dhadoop.log.port=9097 -Dhadoop.security.logger=${HADOOP_SECURITY_LOGGER:-INFO,RFAS} -Dhdfs.audit.logger=${HDFS_AUDIT_LOGGER:-INFO,NullAppender} $HADOOP_SECONDARYNAMENODE_OPTS" |
| |
| export HADOOP_NFS3_OPTS="$HADOOP_NFS3_OPTS" |
| export HADOOP_PORTMAP_OPTS="-Xmx512m $HADOOP_PORTMAP_OPTS" |
| |
| # The following applies to multiple commands (fs, dfs, fsck, distcp etc) |
| export HADOOP_CLIENT_OPTS="-Xmx512m $HADOOP_CLIENT_OPTS" |
| #HADOOP_JAVA_PLATFORM_OPTS="-XX:-UsePerfData $HADOOP_JAVA_PLATFORM_OPTS" |
| |
| # On secure datanodes, user to run the datanode as after dropping privileges. |
| # This **MUST** be uncommented to enable secure HDFS if using privileged ports |
| # to provide authentication of data transfer protocol. This **MUST NOT** be |
| # defined if SASL is configured for authentication of data transfer protocol |
| # using non-privileged ports. |
| export HADOOP_SECURE_DN_USER=${HADOOP_SECURE_DN_USER} |
| |
| # Where log files are stored. $HADOOP_HOME/logs by default. |
| #export HADOOP_LOG_DIR=${HADOOP_LOG_DIR}/$USER |
| |
| # Where log files are stored in the secure data environment. |
| export HADOOP_SECURE_DN_LOG_DIR=${HADOOP_LOG_DIR}/${HADOOP_HDFS_USER} |
| |
| ### |
| # HDFS Mover specific parameters |
| ### |
| # Specify the JVM options to be used when starting the HDFS Mover. |
| # These options will be appended to the options specified as HADOOP_OPTS |
| # and therefore may override any similar flags set in HADOOP_OPTS |
| # |
| # export HADOOP_MOVER_OPTS="" |
| |
| ### |
| # Advanced Users Only! |
| ### |
| |
| # The directory where pid files are stored. /tmp by default. |
| # NOTE: this should be set to a directory that can only be written to by |
| # the user that will run the hadoop daemons. Otherwise there is the |
| # potential for a symlink attack. |
| export HADOOP_PID_DIR=${HADOOP_PID_DIR} |
| export HADOOP_SECURE_DN_PID_DIR=${HADOOP_PID_DIR} |
| |
| # A string representing this instance of hadoop. $USER by default. |
| export HADOOP_IDENT_STRING=$USER |