conf/hbase-env.sh - hbase - Git at Google

 #
 #/**
 # * 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 environment variables here.

 # This script sets variables multiple times over the course of starting an hbase process,
 # so try to keep things idempotent unless you want to take an even deeper look
 # into the startup scripts (bin/hbase, etc.)

 # The java implementation to use.  Java 1.7+ required.
 # export JAVA_HOME=/usr/java/jdk1.6.0/

 # Extra Java CLASSPATH elements.  Optional.
 # export HBASE_CLASSPATH=

 # The maximum amount of heap to use. Default is left to JVM default.
 # export HBASE_HEAPSIZE=1G

 # Uncomment below if you intend to use off heap cache. For example, to allocate 8G of
 # offheap, set the value to "8G".
 # export HBASE_OFFHEAPSIZE=1G

 # Extra Java runtime options.
 # Below are what we set by default.  May only work with SUN JVM.
 # For more on why as well as other possible settings,
 # see http://wiki.apache.org/hadoop/PerformanceTuning
 export HBASE_OPTS="-XX:+UseConcMarkSweepGC"

 # Configure PermSize. Only needed in JDK7. You can safely remove it for JDK8+
 export HBASE_MASTER_OPTS="$HBASE_MASTER_OPTS -XX:PermSize=128m -XX:MaxPermSize=128m -XX:ReservedCodeCacheSize=256m"
 export HBASE_REGIONSERVER_OPTS="$HBASE_REGIONSERVER_OPTS -XX:PermSize=128m -XX:MaxPermSize=128m -XX:ReservedCodeCacheSize=256m"

 # Uncomment one of the below three options to enable java garbage collection logging for the server-side processes.

 # This enables basic gc logging to the .out file.
 # export SERVER_GC_OPTS="-verbose:gc -XX:+PrintGCDetails -XX:+PrintGCDateStamps"

 # This enables basic gc logging to its own file.
 # If FILE-PATH is not replaced, the log file(.gc) would still be generated in the HBASE_LOG_DIR .
 # export SERVER_GC_OPTS="-verbose:gc -XX:+PrintGCDetails -XX:+PrintGCDateStamps -Xloggc:<FILE-PATH>"

 # This enables basic GC logging to its own file with automatic log rolling. Only applies to jdk 1.6.0_34+ and 1.7.0_2+.
 # If FILE-PATH is not replaced, the log file(.gc) would still be generated in the HBASE_LOG_DIR .
 # export SERVER_GC_OPTS="-verbose:gc -XX:+PrintGCDetails -XX:+PrintGCDateStamps -Xloggc:<FILE-PATH> -XX:+UseGCLogFileRotation -XX:NumberOfGCLogFiles=1 -XX:GCLogFileSize=512M"

 # Uncomment one of the below three options to enable java garbage collection logging for the client processes.

 # This enables basic gc logging to the .out file.
 # export CLIENT_GC_OPTS="-verbose:gc -XX:+PrintGCDetails -XX:+PrintGCDateStamps"

 # This enables basic gc logging to its own file.
 # If FILE-PATH is not replaced, the log file(.gc) would still be generated in the HBASE_LOG_DIR .
 # export CLIENT_GC_OPTS="-verbose:gc -XX:+PrintGCDetails -XX:+PrintGCDateStamps -Xloggc:<FILE-PATH>"

 # This enables basic GC logging to its own file with automatic log rolling. Only applies to jdk 1.6.0_34+ and 1.7.0_2+.
 # If FILE-PATH is not replaced, the log file(.gc) would still be generated in the HBASE_LOG_DIR .
 # export CLIENT_GC_OPTS="-verbose:gc -XX:+PrintGCDetails -XX:+PrintGCDateStamps -Xloggc:<FILE-PATH> -XX:+UseGCLogFileRotation -XX:NumberOfGCLogFiles=1 -XX:GCLogFileSize=512M"

 # See the package documentation for org.apache.hadoop.hbase.io.hfile for other configurations
 # needed setting up off-heap block caching.

 # Uncomment and adjust to enable JMX exporting
 # See jmxremote.password and jmxremote.access in $JRE_HOME/lib/management to configure remote password access.
 # More details at: http://java.sun.com/javase/6/docs/technotes/guides/management/agent.html
 # NOTE: HBase provides an alternative JMX implementation to fix the random ports issue, please see JMX
 # section in HBase Reference Guide for instructions.

 # export HBASE_JMX_BASE="-Dcom.sun.management.jmxremote.ssl=false -Dcom.sun.management.jmxremote.authenticate=false"
 # export HBASE_MASTER_OPTS="$HBASE_MASTER_OPTS $HBASE_JMX_BASE -Dcom.sun.management.jmxremote.port=10101"
 # export HBASE_REGIONSERVER_OPTS="$HBASE_REGIONSERVER_OPTS $HBASE_JMX_BASE -Dcom.sun.management.jmxremote.port=10102"
 # export HBASE_THRIFT_OPTS="$HBASE_THRIFT_OPTS $HBASE_JMX_BASE -Dcom.sun.management.jmxremote.port=10103"
 # export HBASE_ZOOKEEPER_OPTS="$HBASE_ZOOKEEPER_OPTS $HBASE_JMX_BASE -Dcom.sun.management.jmxremote.port=10104"
 # export HBASE_REST_OPTS="$HBASE_REST_OPTS $HBASE_JMX_BASE -Dcom.sun.management.jmxremote.port=10105"

 # File naming hosts on which HRegionServers will run.  $HBASE_HOME/conf/regionservers by default.
 # export HBASE_REGIONSERVERS=${HBASE_HOME}/conf/regionservers

 # Uncomment and adjust to keep all the Region Server pages mapped to be memory resident
 #HBASE_REGIONSERVER_MLOCK=true
 #HBASE_REGIONSERVER_UID="hbase"

 # File naming hosts on which backup HMaster will run.  $HBASE_HOME/conf/backup-masters by default.
 # export HBASE_BACKUP_MASTERS=${HBASE_HOME}/conf/backup-masters

 # Extra ssh options.  Empty by default.
 # export HBASE_SSH_OPTS="-o ConnectTimeout=1 -o SendEnv=HBASE_CONF_DIR"

 # Where log files are stored.  $HBASE_HOME/logs by default.
 # export HBASE_LOG_DIR=${HBASE_HOME}/logs

 # Enable remote JDWP debugging of major HBase processes. Meant for Core Developers
 # export HBASE_MASTER_OPTS="$HBASE_MASTER_OPTS -Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=8070"
 # export HBASE_REGIONSERVER_OPTS="$HBASE_REGIONSERVER_OPTS -Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=8071"
 # export HBASE_THRIFT_OPTS="$HBASE_THRIFT_OPTS -Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=8072"
 # export HBASE_ZOOKEEPER_OPTS="$HBASE_ZOOKEEPER_OPTS -Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=8073"

 # A string representing this instance of hbase. $USER by default.
 # export HBASE_IDENT_STRING=$USER

 # The scheduling priority for daemon processes.  See 'man nice'.
 # export HBASE_NICENESS=10

 # The directory where pid files are stored. /tmp by default.
 # export HBASE_PID_DIR=/var/hadoop/pids

 # 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 HBASE_SLAVE_SLEEP=0.1

 # Tell HBase whether it should manage it's own instance of Zookeeper or not.
 # export HBASE_MANAGES_ZK=true

 # The default log rolling policy is RFA, where the log file is rolled as per the size defined for the
 # RFA appender. Please refer to the log4j.properties file to see more details on this appender.
 # In case one needs to do log rolling on a date change, one should set the environment property
 # HBASE_ROOT_LOGGER to "<DESIRED_LOG LEVEL>,DRFA".
 # For example:
 # HBASE_ROOT_LOGGER=INFO,DRFA
 # The reason for changing default to RFA is to avoid the boundary case of filling out disk space as
 # DRFA doesn't put any cap on the log size. Please refer to HBase-5655 for more context.

 # Tell HBase whether it should include Hadoop's lib when start up,
 # the default value is false,means that includes Hadoop's lib.
 # export HBASE_DISABLE_HADOOP_CLASSPATH_LOOKUP="true"
	#
	#/**
	# * 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 environment variables here.

	# This script sets variables multiple times over the course of starting an hbase process,
	# so try to keep things idempotent unless you want to take an even deeper look
	# into the startup scripts (bin/hbase, etc.)

	# The java implementation to use. Java 1.7+ required.
	# export JAVA_HOME=/usr/java/jdk1.6.0/

	# Extra Java CLASSPATH elements. Optional.
	# export HBASE_CLASSPATH=

	# The maximum amount of heap to use. Default is left to JVM default.
	# export HBASE_HEAPSIZE=1G

	# Uncomment below if you intend to use off heap cache. For example, to allocate 8G of
	# offheap, set the value to "8G".
	# export HBASE_OFFHEAPSIZE=1G

	# Extra Java runtime options.
	# Below are what we set by default. May only work with SUN JVM.
	# For more on why as well as other possible settings,
	# see http://wiki.apache.org/hadoop/PerformanceTuning
	export HBASE_OPTS="-XX:+UseConcMarkSweepGC"

	# Configure PermSize. Only needed in JDK7. You can safely remove it for JDK8+
	export HBASE_MASTER_OPTS="$HBASE_MASTER_OPTS -XX:PermSize=128m -XX:MaxPermSize=128m -XX:ReservedCodeCacheSize=256m"
	export HBASE_REGIONSERVER_OPTS="$HBASE_REGIONSERVER_OPTS -XX:PermSize=128m -XX:MaxPermSize=128m -XX:ReservedCodeCacheSize=256m"

	# Uncomment one of the below three options to enable java garbage collection logging for the server-side processes.

	# This enables basic gc logging to the .out file.
	# export SERVER_GC_OPTS="-verbose:gc -XX:+PrintGCDetails -XX:+PrintGCDateStamps"

	# This enables basic gc logging to its own file.
	# If FILE-PATH is not replaced, the log file(.gc) would still be generated in the HBASE_LOG_DIR .
	# export SERVER_GC_OPTS="-verbose:gc -XX:+PrintGCDetails -XX:+PrintGCDateStamps -Xloggc:<FILE-PATH>"

	# This enables basic GC logging to its own file with automatic log rolling. Only applies to jdk 1.6.0_34+ and 1.7.0_2+.
	# If FILE-PATH is not replaced, the log file(.gc) would still be generated in the HBASE_LOG_DIR .
	# export SERVER_GC_OPTS="-verbose:gc -XX:+PrintGCDetails -XX:+PrintGCDateStamps -Xloggc:<FILE-PATH> -XX:+UseGCLogFileRotation -XX:NumberOfGCLogFiles=1 -XX:GCLogFileSize=512M"

	# Uncomment one of the below three options to enable java garbage collection logging for the client processes.

	# This enables basic gc logging to the .out file.
	# export CLIENT_GC_OPTS="-verbose:gc -XX:+PrintGCDetails -XX:+PrintGCDateStamps"

	# This enables basic gc logging to its own file.
	# If FILE-PATH is not replaced, the log file(.gc) would still be generated in the HBASE_LOG_DIR .
	# export CLIENT_GC_OPTS="-verbose:gc -XX:+PrintGCDetails -XX:+PrintGCDateStamps -Xloggc:<FILE-PATH>"

	# This enables basic GC logging to its own file with automatic log rolling. Only applies to jdk 1.6.0_34+ and 1.7.0_2+.
	# If FILE-PATH is not replaced, the log file(.gc) would still be generated in the HBASE_LOG_DIR .
	# export CLIENT_GC_OPTS="-verbose:gc -XX:+PrintGCDetails -XX:+PrintGCDateStamps -Xloggc:<FILE-PATH> -XX:+UseGCLogFileRotation -XX:NumberOfGCLogFiles=1 -XX:GCLogFileSize=512M"

	# See the package documentation for org.apache.hadoop.hbase.io.hfile for other configurations
	# needed setting up off-heap block caching.

	# Uncomment and adjust to enable JMX exporting
	# See jmxremote.password and jmxremote.access in $JRE_HOME/lib/management to configure remote password access.
	# More details at: http://java.sun.com/javase/6/docs/technotes/guides/management/agent.html
	# NOTE: HBase provides an alternative JMX implementation to fix the random ports issue, please see JMX
	# section in HBase Reference Guide for instructions.

	# export HBASE_JMX_BASE="-Dcom.sun.management.jmxremote.ssl=false -Dcom.sun.management.jmxremote.authenticate=false"
	# export HBASE_MASTER_OPTS="$HBASE_MASTER_OPTS $HBASE_JMX_BASE -Dcom.sun.management.jmxremote.port=10101"
	# export HBASE_REGIONSERVER_OPTS="$HBASE_REGIONSERVER_OPTS $HBASE_JMX_BASE -Dcom.sun.management.jmxremote.port=10102"
	# export HBASE_THRIFT_OPTS="$HBASE_THRIFT_OPTS $HBASE_JMX_BASE -Dcom.sun.management.jmxremote.port=10103"
	# export HBASE_ZOOKEEPER_OPTS="$HBASE_ZOOKEEPER_OPTS $HBASE_JMX_BASE -Dcom.sun.management.jmxremote.port=10104"
	# export HBASE_REST_OPTS="$HBASE_REST_OPTS $HBASE_JMX_BASE -Dcom.sun.management.jmxremote.port=10105"

	# File naming hosts on which HRegionServers will run. $HBASE_HOME/conf/regionservers by default.
	# export HBASE_REGIONSERVERS=${HBASE_HOME}/conf/regionservers

	# Uncomment and adjust to keep all the Region Server pages mapped to be memory resident
	#HBASE_REGIONSERVER_MLOCK=true
	#HBASE_REGIONSERVER_UID="hbase"

	# File naming hosts on which backup HMaster will run. $HBASE_HOME/conf/backup-masters by default.
	# export HBASE_BACKUP_MASTERS=${HBASE_HOME}/conf/backup-masters

	# Extra ssh options. Empty by default.
	# export HBASE_SSH_OPTS="-o ConnectTimeout=1 -o SendEnv=HBASE_CONF_DIR"

	# Where log files are stored. $HBASE_HOME/logs by default.
	# export HBASE_LOG_DIR=${HBASE_HOME}/logs

	# Enable remote JDWP debugging of major HBase processes. Meant for Core Developers
	# export HBASE_MASTER_OPTS="$HBASE_MASTER_OPTS -Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=8070"
	# export HBASE_REGIONSERVER_OPTS="$HBASE_REGIONSERVER_OPTS -Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=8071"
	# export HBASE_THRIFT_OPTS="$HBASE_THRIFT_OPTS -Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=8072"
	# export HBASE_ZOOKEEPER_OPTS="$HBASE_ZOOKEEPER_OPTS -Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=8073"

	# A string representing this instance of hbase. $USER by default.
	# export HBASE_IDENT_STRING=$USER

	# The scheduling priority for daemon processes. See 'man nice'.
	# export HBASE_NICENESS=10

	# The directory where pid files are stored. /tmp by default.
	# export HBASE_PID_DIR=/var/hadoop/pids

	# 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 HBASE_SLAVE_SLEEP=0.1

	# Tell HBase whether it should manage it's own instance of Zookeeper or not.
	# export HBASE_MANAGES_ZK=true

	# The default log rolling policy is RFA, where the log file is rolled as per the size defined for the
	# RFA appender. Please refer to the log4j.properties file to see more details on this appender.
	# In case one needs to do log rolling on a date change, one should set the environment property
	# HBASE_ROOT_LOGGER to "<DESIRED_LOG LEVEL>,DRFA".
	# For example:
	# HBASE_ROOT_LOGGER=INFO,DRFA
	# The reason for changing default to RFA is to avoid the boundary case of filling out disk space as
	# DRFA doesn't put any cap on the log size. Please refer to HBase-5655 for more context.

	# Tell HBase whether it should include Hadoop's lib when start up,
	# the default value is false,means that includes Hadoop's lib.
	# export HBASE_DISABLE_HADOOP_CLASSPATH_LOOKUP="true"