c575e18ab8
We have an awesome community resource in our online book. It's maintained and looked after with diligence. We also have an HBase section on the hadoop wiki that hasn't been updated since 2012. Let's sift through the pages of the wiki, bring over any content that's still relevant and not already present in the book, and kill the wiki.
138 lines
7.3 KiB
Bash
138 lines
7.3 KiB
Bash
#
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#/**
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# * Licensed to the Apache Software Foundation (ASF) under one
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# * or more contributor license agreements. See the NOTICE file
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# * distributed with this work for additional information
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# * regarding copyright ownership. The ASF licenses this file
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# * to you under the Apache License, Version 2.0 (the
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# * "License"); you may not use this file except in compliance
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# * with the License. You may obtain a copy of the License at
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# *
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# * http://www.apache.org/licenses/LICENSE-2.0
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# *
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# * Unless required by applicable law or agreed to in writing, software
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# * distributed under the License is distributed on an "AS IS" BASIS,
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# * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# * See the License for the specific language governing permissions and
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# * limitations under the License.
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# */
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# Set environment variables here.
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# This script sets variables multiple times over the course of starting an hbase process,
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# so try to keep things idempotent unless you want to take an even deeper look
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# into the startup scripts (bin/hbase, etc.)
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# The java implementation to use. Java 1.7+ required.
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# export JAVA_HOME=/usr/java/jdk1.6.0/
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# Extra Java CLASSPATH elements. Optional.
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# export HBASE_CLASSPATH=
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# The maximum amount of heap to use. Default is left to JVM default.
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# export HBASE_HEAPSIZE=1G
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# Uncomment below if you intend to use off heap cache. For example, to allocate 8G of
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# offheap, set the value to "8G".
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# export HBASE_OFFHEAPSIZE=1G
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# Extra Java runtime options.
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# Below are what we set by default. May only work with SUN JVM.
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# For more on why as well as other possible settings,
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# see http://hbase.apache.org/book.html#performance
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export HBASE_OPTS="-XX:+UseConcMarkSweepGC"
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# Configure PermSize. Only needed in JDK7. You can safely remove it for JDK8+
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export HBASE_MASTER_OPTS="$HBASE_MASTER_OPTS -XX:PermSize=128m -XX:MaxPermSize=128m"
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export HBASE_REGIONSERVER_OPTS="$HBASE_REGIONSERVER_OPTS -XX:PermSize=128m -XX:MaxPermSize=128m"
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# Uncomment one of the below three options to enable java garbage collection logging for the server-side processes.
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# This enables basic gc logging to the .out file.
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# export SERVER_GC_OPTS="-verbose:gc -XX:+PrintGCDetails -XX:+PrintGCDateStamps"
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# This enables basic gc logging to its own file.
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# If FILE-PATH is not replaced, the log file(.gc) would still be generated in the HBASE_LOG_DIR .
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# export SERVER_GC_OPTS="-verbose:gc -XX:+PrintGCDetails -XX:+PrintGCDateStamps -Xloggc:<FILE-PATH>"
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# 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+.
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# If FILE-PATH is not replaced, the log file(.gc) would still be generated in the HBASE_LOG_DIR .
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# export SERVER_GC_OPTS="-verbose:gc -XX:+PrintGCDetails -XX:+PrintGCDateStamps -Xloggc:<FILE-PATH> -XX:+UseGCLogFileRotation -XX:NumberOfGCLogFiles=1 -XX:GCLogFileSize=512M"
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# Uncomment one of the below three options to enable java garbage collection logging for the client processes.
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# This enables basic gc logging to the .out file.
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# export CLIENT_GC_OPTS="-verbose:gc -XX:+PrintGCDetails -XX:+PrintGCDateStamps"
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# This enables basic gc logging to its own file.
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# If FILE-PATH is not replaced, the log file(.gc) would still be generated in the HBASE_LOG_DIR .
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# export CLIENT_GC_OPTS="-verbose:gc -XX:+PrintGCDetails -XX:+PrintGCDateStamps -Xloggc:<FILE-PATH>"
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# 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+.
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# If FILE-PATH is not replaced, the log file(.gc) would still be generated in the HBASE_LOG_DIR .
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# export CLIENT_GC_OPTS="-verbose:gc -XX:+PrintGCDetails -XX:+PrintGCDateStamps -Xloggc:<FILE-PATH> -XX:+UseGCLogFileRotation -XX:NumberOfGCLogFiles=1 -XX:GCLogFileSize=512M"
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# See the package documentation for org.apache.hadoop.hbase.io.hfile for other configurations
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# needed setting up off-heap block caching.
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# Uncomment and adjust to enable JMX exporting
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# See jmxremote.password and jmxremote.access in $JRE_HOME/lib/management to configure remote password access.
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# More details at: http://java.sun.com/javase/6/docs/technotes/guides/management/agent.html
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# NOTE: HBase provides an alternative JMX implementation to fix the random ports issue, please see JMX
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# section in HBase Reference Guide for instructions.
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# export HBASE_JMX_BASE="-Dcom.sun.management.jmxremote.ssl=false -Dcom.sun.management.jmxremote.authenticate=false"
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# export HBASE_MASTER_OPTS="$HBASE_MASTER_OPTS $HBASE_JMX_BASE -Dcom.sun.management.jmxremote.port=10101"
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# export HBASE_REGIONSERVER_OPTS="$HBASE_REGIONSERVER_OPTS $HBASE_JMX_BASE -Dcom.sun.management.jmxremote.port=10102"
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# export HBASE_THRIFT_OPTS="$HBASE_THRIFT_OPTS $HBASE_JMX_BASE -Dcom.sun.management.jmxremote.port=10103"
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# export HBASE_ZOOKEEPER_OPTS="$HBASE_ZOOKEEPER_OPTS $HBASE_JMX_BASE -Dcom.sun.management.jmxremote.port=10104"
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# export HBASE_REST_OPTS="$HBASE_REST_OPTS $HBASE_JMX_BASE -Dcom.sun.management.jmxremote.port=10105"
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# File naming hosts on which HRegionServers will run. $HBASE_HOME/conf/regionservers by default.
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# export HBASE_REGIONSERVERS=${HBASE_HOME}/conf/regionservers
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# Uncomment and adjust to keep all the Region Server pages mapped to be memory resident
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#HBASE_REGIONSERVER_MLOCK=true
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#HBASE_REGIONSERVER_UID="hbase"
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# File naming hosts on which backup HMaster will run. $HBASE_HOME/conf/backup-masters by default.
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# export HBASE_BACKUP_MASTERS=${HBASE_HOME}/conf/backup-masters
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# Extra ssh options. Empty by default.
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# export HBASE_SSH_OPTS="-o ConnectTimeout=1 -o SendEnv=HBASE_CONF_DIR"
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# Where log files are stored. $HBASE_HOME/logs by default.
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# export HBASE_LOG_DIR=${HBASE_HOME}/logs
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# Enable remote JDWP debugging of major HBase processes. Meant for Core Developers
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# export HBASE_MASTER_OPTS="$HBASE_MASTER_OPTS -Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=8070"
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# export HBASE_REGIONSERVER_OPTS="$HBASE_REGIONSERVER_OPTS -Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=8071"
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# export HBASE_THRIFT_OPTS="$HBASE_THRIFT_OPTS -Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=8072"
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# export HBASE_ZOOKEEPER_OPTS="$HBASE_ZOOKEEPER_OPTS -Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=8073"
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# A string representing this instance of hbase. $USER by default.
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# export HBASE_IDENT_STRING=$USER
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# The scheduling priority for daemon processes. See 'man nice'.
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# export HBASE_NICENESS=10
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# The directory where pid files are stored. /tmp by default.
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# export HBASE_PID_DIR=/var/hadoop/pids
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# Seconds to sleep between slave commands. Unset by default. This
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# can be useful in large clusters, where, e.g., slave rsyncs can
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# otherwise arrive faster than the master can service them.
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# export HBASE_SLAVE_SLEEP=0.1
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# Tell HBase whether it should manage it's own instance of Zookeeper or not.
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# export HBASE_MANAGES_ZK=true
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# The default log rolling policy is RFA, where the log file is rolled as per the size defined for the
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# RFA appender. Please refer to the log4j.properties file to see more details on this appender.
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# In case one needs to do log rolling on a date change, one should set the environment property
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# HBASE_ROOT_LOGGER to "<DESIRED_LOG LEVEL>,DRFA".
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# For example:
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# HBASE_ROOT_LOGGER=INFO,DRFA
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# The reason for changing default to RFA is to avoid the boundary case of filling out disk space as
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# DRFA doesn't put any cap on the log size. Please refer to HBase-5655 for more context.
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