<property> <name>dfs.support.append</name> <value>true</value> <description>Allow append support since we have the HDFS-200 patch and need append/close support for HLog.java#splitLog</description> </property>
# 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/bin/hadoop/software/java8/
# 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=${JSVC_HOME}
# Extra Java CLASSPATH elements. Automatically insert capacity-scheduler. for f in$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="$HADOOP_OPTS -Djava.net.preferIPv4Stack=true"
# Command specific options appended to HADOOP_OPTS when specified export HADOOP_NAMENODE_OPTS="-Dhadoop.security.logger=${HADOOP_SECURITY_LOGGER:-INFO,RFAS} -Dhdfs.audit.logger=${HDFS_AUDIT_LOGGER:-INFO,NullAppender}$HADOOP_NAMENODE_OPTS" export HADOOP_DATANODE_OPTS="-Dhadoop.security.logger=ERROR,RFAS $HADOOP_DATANODE_OPTS"
# The following applies to multiple commands (fs, dfs, fsck, distcp etc) export HADOOP_CLIENT_OPTS="-Xmx10000m $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}/${HADOOP_HDFS_USER}
### # HDFS Mover specific parameters ### # Specify the JVM options to be used when starting the HDFS Mover. # These options will be appended to the options specified as HADOOP_OPTS # and therefore may override any similar flags set in HADOOP_OPTS # # export HADOOP_MOVER_OPTS=""
### # Advanced Users Only! ###
# The directory where pid files are stored. /tmp by default. # NOTE: this should be set to a directory that can only be written to by # the user that will run the hadoop daemons. Otherwise there is the # potential for a symlink attack. export HADOOP_PID_DIR="/home/yarn/yarn/pids"#${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
