# 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. Required. export JAVA_HOME=/usr/jdk64/jdk1.8.0_112 export HADOOP_HOME_WARN_SUPPRESS=1 # Hadoop home directory export HADOOP_HOME=${HADOOP_HOME:-/usr/hdp/2.6.5.0-292/hadoop} # Hadoop Configuration Directory # Path to jsvc required by secure HDP 2.0 datanode export JSVC_HOME=/usr/lib/bigtop-utils # The maximum amount of heap to use, in MB. Default is 1000. export HADOOP_HEAPSIZE="1024" export HADOOP_NAMENODE_INIT_HEAPSIZE="-Xms1024m" # Extra Java runtime options. Empty by default. export HADOOP_OPTS="-Djava.net.preferIPv4Stack=true ${HADOOP_OPTS}" USER="$(whoami)" # Command specific options appended to HADOOP_OPTS when specified HADOOP_JOBTRACKER_OPTS="-server -XX:ParallelGCThreads=8 -XX:+UseConcMarkSweepGC - XX:ErrorFile=/var/log/hadoop/$USER/hs_err_pid%p.log -XX:NewSize=200m -XX:MaxNewSize=200m - Xloggc:/var/log/hadoop/$USER/gc.log-`date +'%Y%m%d%H%M'` -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCTimeStamps - XX:+PrintGCDateStamps -Xmx1024m -Dhadoop.security.logger=INFO,DRFAS -Dmapred.audit.logger=INFO,MRAUDIT - Dhadoop.mapreduce.jobsummary.logger=INFO,JSA ${HADOOP_JOBTRACKER_OPTS}" HADOOP_TASKTRACKER_OPTS="-server -Xmx1024m -Dhadoop.security.logger=ERROR,console -Dmapred.audit.logger=ERROR,console ${HADOOP_TASKTRACKER_OPTS}" SHARED_HADOOP_NAMENODE_OPTS="-server -XX:ParallelGCThreads=8 -XX:+UseConcMarkSweepGC - XX:ErrorFile=/var/log/hadoop/$USER/hs_err_pid%p.log -XX:NewSize=128m -XX:MaxNewSize=128m - Xloggc:/var/log/hadoop/$USER/gc.log-`date +'%Y%m%d%H%M'` -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCTimeStamps - XX:+PrintGCDateStamps -XX:CMSInitiatingOccupancyFraction=70 -XX:+UseCMSInitiatingOccupancyOnly -Xms1024m -Xmx1024m - Dhadoop.security.logger=INFO,DRFAS -Dhdfs.audit.logger=INFO,DRFAAUDIT" export HADOOP_NAMENODE_OPTS="${SHARED_HADOOP_NAMENODE_OPTS} - XX:OnOutOfMemoryError=\"/usr/hdp/current/hadoop-hdfs-namenode/bin/kill-name-node\" - Dorg.mortbay.jetty.Request.maxFormContentSize=-1 ${HADOOP_NAMENODE_OPTS}" export HADOOP_DATANODE_OPTS="-server -XX:ParallelGCThreads=4 -XX:+UseConcMarkSweepGC - XX:ErrorFile=/var/log/hadoop/$USER/hs_err_pid%p.log -XX:NewSize=200m -XX:MaxNewSize=200m - Xloggc:/var/log/hadoop/$USER/gc.log-`date +'%Y%m%d%H%M'` -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCTimeStamps - XX:+PrintGCDateStamps -Xms1024m -Xmx1024m -Dhadoop.security.logger=INFO,DRFAS -Dhdfs.audit.logger=INFO,DRFAAUDIT ${HADOOP_DATANODE_OPTS} -XX:CMSInitiatingOccupancyFraction=70 -XX:+UseCMSInitiatingOccupancyOnly" export HADOOP_SECONDARYNAMENODE_OPTS="${SHARED_HADOOP_NAMENODE_OPTS} - XX:OnOutOfMemoryError=\"/usr/hdp/current/hadoop-hdfs-secondarynamenode/bin/kill-secondary-name-node\" ${HADOOP_SECONDARYNAMENODE_OPTS}" # The following applies to multiple commands (fs, dfs, fsck, distcp etc) export HADOOP_CLIENT_OPTS="-Xmx${HADOOP_HEAPSIZE}m $HADOOP_CLIENT_OPTS" HADOOP_NFS3_OPTS="-Xmx1024m -Dhadoop.security.logger=ERROR,DRFAS ${HADOOP_NFS3_OPTS}" HADOOP_BALANCER_OPTS="-server -Xmx1024m ${HADOOP_BALANCER_OPTS}" # On secure datanodes, user to run the datanode as after dropping privileges export HADOOP_SECURE_DN_USER=${HADOOP_SECURE_DN_USER:-""} # Extra ssh options. Empty by default. export HADOOP_SSH_OPTS="-o ConnectTimeout=5 -o SendEnv=HADOOP_CONF_DIR" # Where log files are stored. $HADOOP_HOME/logs by default. export HADOOP_LOG_DIR=/var/log/hadoop/$USER # History server logs export HADOOP_MAPRED_LOG_DIR=/var/log/hadoop-mapreduce/$USER # Where log files are stored in the secure data environment. export HADOOP_SECURE_DN_LOG_DIR=/var/log/hadoop/$HADOOP_SECURE_DN_USER # File naming remote slave hosts. $HADOOP_HOME/conf/slaves by default. # export HADOOP_SLAVES=${HADOOP_HOME}/conf/slaves # host:path where hadoop code should be rsync'd from. Unset by default. # export HADOOP_MASTER=master:/home/$USER/src/hadoop # Seconds to sleep between slave commands. Unset by default. This # can be useful in large clusters, where, e.g., slave rsyncs can # otherwise arrive faster than the master can service them. # export HADOOP_SLAVE_SLEEP=0.1 # The directory where pid files are stored. /tmp by default. export HADOOP_PID_DIR=/var/run/hadoop/$USER export HADOOP_SECURE_DN_PID_DIR=/var/run/hadoop/$HADOOP_SECURE_DN_USER # History server pid export HADOOP_MAPRED_PID_DIR=/var/run/hadoop-mapreduce/$USER YARN_RESOURCEMANAGER_OPTS="-Dyarn.server.resourcemanager.appsummary.logger=INFO,RMSUMMARY" # A string representing this instance of hadoop. $USER by default. export HADOOP_IDENT_STRING=$USER # The scheduling priority for daemon processes. See 'man nice'. # export HADOOP_NICENESS=10 # Add database libraries JAVA_JDBC_LIBS="" if [ -d "/usr/share/java" ]; then for jarFile in `ls /usr/share/java | grep -E "(mysql|ojdbc|postgresql|sqljdbc)" 2>/dev/null` do JAVA_JDBC_LIBS=${JAVA_JDBC_LIBS}:$jarFile done fi # Add libraries to the hadoop classpath - some may not need a colon as they already include it export HADOOP_CLASSPATH=${HADOOP_CLASSPATH}${JAVA_JDBC_LIBS} # Setting path to hdfs command line export HADOOP_LIBEXEC_DIR=/usr/hdp/2.6.5.0-292/hadoop/libexec # Mostly required for hadoop 2.0 export JAVA_LIBRARY_PATH=${JAVA_LIBRARY_PATH}:/usr/hdp/2.6.5.0-292/hadoop/lib/native/Linux-amd64-64 export HADOOP_OPTS="-Dhdp.version=$HDP_VERSION $HADOOP_OPTS" # Fix temporary bug, when ulimit from conf files is not picked up, without full relogin. # Makes sense to fix only when runing DN as root if [ "$command" == "datanode" ] && [ "$EUID" -eq 0 ] && [ -n "$HADOOP_SECURE_DN_USER" ]; then ulimit -n 128000 fi # Enable ACLs on zookeper znodes if required .