conf/hbase-env.sh

   1 #!/usr/bin/env bash
   2 #
   3 #/**
   4 # * Licensed to the Apache Software Foundation (ASF) under one
   5 # * or more contributor license agreements.  See the NOTICE file
   6 # * distributed with this work for additional information
   7 # * regarding copyright ownership.  The ASF licenses this file
   8 # * to you under the Apache License, Version 2.0 (the
   9 # * "License"); you may not use this file except in compliance
  10 # * with the License.  You may obtain a copy of the License at
  11 # *
  12 # *     http://www.apache.org/licenses/LICENSE-2.0
  13 # *
  14 # * Unless required by applicable law or agreed to in writing, software
  15 # * distributed under the License is distributed on an "AS IS" BASIS,
  16 # * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  17 # * See the License for the specific language governing permissions and
  18 # * limitations under the License.
  19 # */
  20
  21 # Set environment variables here.
  22
  23 # This script sets variables multiple times over the course of starting an hbase process,
  24 # so try to keep things idempotent unless you want to take an even deeper look
  25 # into the startup scripts (bin/hbase, etc.)
  26
  27 # The java implementation to use.  Java 1.8+ required.
  28 # export JAVA_HOME=/usr/java/jdk1.8.0/
  29
  30 # Extra Java CLASSPATH elements.  Optional.
  31 # export HBASE_CLASSPATH=
  32
  33 # The maximum amount of heap to use. Default is left to JVM default.
  34 # export HBASE_HEAPSIZE=1G
  35
  36 # Uncomment below if you intend to use off heap cache. For example, to allocate 8G of
  37 # offheap, set the value to "8G".
  38 # export HBASE_OFFHEAPSIZE=1G
  39
  40 # Extra Java runtime options.
  41 # Below are what we set by default.  May only work with SUN JVM.
  42 # For more on why as well as other possible settings,
  43 # see http://hbase.apache.org/book.html#performance
  44 export HBASE_OPTS="-XX:+UseConcMarkSweepGC"
  45
  46 # Uncomment one of the below three options to enable java garbage collection logging for the server-side processes.
  47
  48 # This enables basic gc logging to the .out file.
  49 # export SERVER_GC_OPTS="-verbose:gc -XX:+PrintGCDetails -XX:+PrintGCDateStamps"
  50
  51 # This enables basic gc logging to its own file.
  52 # If FILE-PATH is not replaced, the log file(.gc) would still be generated in the HBASE_LOG_DIR .
  53 # export SERVER_GC_OPTS="-verbose:gc -XX:+PrintGCDetails -XX:+PrintGCDateStamps -Xloggc:<FILE-PATH>"
  54
  55 # 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+.
  56 # If FILE-PATH is not replaced, the log file(.gc) would still be generated in the HBASE_LOG_DIR .
  57 # export SERVER_GC_OPTS="-verbose:gc -XX:+PrintGCDetails -XX:+PrintGCDateStamps -Xloggc:<FILE-PATH> -XX:+UseGCLogFileRotation -XX:NumberOfGCLogFiles=1 -XX:GCLogFileSize=512M"
  58
  59 # Uncomment one of the below three options to enable java garbage collection logging for the client processes.
  60
  61 # This enables basic gc logging to the .out file.
  62 # export CLIENT_GC_OPTS="-verbose:gc -XX:+PrintGCDetails -XX:+PrintGCDateStamps"
  63
  64 # This enables basic gc logging to its own file.
  65 # If FILE-PATH is not replaced, the log file(.gc) would still be generated in the HBASE_LOG_DIR .
  66 # export CLIENT_GC_OPTS="-verbose:gc -XX:+PrintGCDetails -XX:+PrintGCDateStamps -Xloggc:<FILE-PATH>"
  67
  68 # 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+.
  69 # If FILE-PATH is not replaced, the log file(.gc) would still be generated in the HBASE_LOG_DIR .
  70 # export CLIENT_GC_OPTS="-verbose:gc -XX:+PrintGCDetails -XX:+PrintGCDateStamps -Xloggc:<FILE-PATH> -XX:+UseGCLogFileRotation -XX:NumberOfGCLogFiles=1 -XX:GCLogFileSize=512M"
  71
  72 # See the package documentation for org.apache.hadoop.hbase.io.hfile for other configurations
  73 # needed setting up off-heap block caching.
  74
  75 # Uncomment and adjust to enable JMX exporting
  76 # See jmxremote.password and jmxremote.access in $JRE_HOME/lib/management to configure remote password access.
  77 # More details at: http://java.sun.com/javase/6/docs/technotes/guides/management/agent.html
  78 # NOTE: HBase provides an alternative JMX implementation to fix the random ports issue, please see JMX
  79 # section in HBase Reference Guide for instructions.
  80
  81 # export HBASE_JMX_BASE="-Dcom.sun.management.jmxremote.ssl=false -Dcom.sun.management.jmxremote.authenticate=false"
  82 # export HBASE_MASTER_OPTS="$HBASE_MASTER_OPTS $HBASE_JMX_BASE -Dcom.sun.management.jmxremote.port=10101"
  83 # export HBASE_REGIONSERVER_OPTS="$HBASE_REGIONSERVER_OPTS $HBASE_JMX_BASE -Dcom.sun.management.jmxremote.port=10102"
  84 # export HBASE_THRIFT_OPTS="$HBASE_THRIFT_OPTS $HBASE_JMX_BASE -Dcom.sun.management.jmxremote.port=10103"
  85 # export HBASE_ZOOKEEPER_OPTS="$HBASE_ZOOKEEPER_OPTS $HBASE_JMX_BASE -Dcom.sun.management.jmxremote.port=10104"
  86 # export HBASE_REST_OPTS="$HBASE_REST_OPTS $HBASE_JMX_BASE -Dcom.sun.management.jmxremote.port=10105"
  87
  88 # File naming hosts on which HRegionServers will run.  $HBASE_HOME/conf/regionservers by default.
  89 # export HBASE_REGIONSERVERS=${HBASE_HOME}/conf/regionservers
  90
  91 # Uncomment and adjust to keep all the Region Server pages mapped to be memory resident
  92 #HBASE_REGIONSERVER_MLOCK=true
  93 #HBASE_REGIONSERVER_UID="hbase"
  94
  95 # File naming hosts on which backup HMaster will run.  $HBASE_HOME/conf/backup-masters by default.
  96 # export HBASE_BACKUP_MASTERS=${HBASE_HOME}/conf/backup-masters
  97
  98 # Extra ssh options.  Empty by default.
  99 # export HBASE_SSH_OPTS="-o ConnectTimeout=1 -o SendEnv=HBASE_CONF_DIR"
 100
 101 # Where log files are stored.  $HBASE_HOME/logs by default.
 102 # export HBASE_LOG_DIR=${HBASE_HOME}/logs
 103
 104 # Enable remote JDWP debugging of major HBase processes. Meant for Core Developers
 105 # export HBASE_MASTER_OPTS="$HBASE_MASTER_OPTS -Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=8070"
 106 # export HBASE_REGIONSERVER_OPTS="$HBASE_REGIONSERVER_OPTS -Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=8071"
 107 # export HBASE_THRIFT_OPTS="$HBASE_THRIFT_OPTS -Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=8072"
 108 # export HBASE_ZOOKEEPER_OPTS="$HBASE_ZOOKEEPER_OPTS -Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=8073"
 109
 110 # A string representing this instance of hbase. $USER by default.
 111 # export HBASE_IDENT_STRING=$USER
 112
 113 # The scheduling priority for daemon processes.  See 'man nice'.
 114 # export HBASE_NICENESS=10
 115
 116 # The directory where pid files are stored. /tmp by default.
 117 # export HBASE_PID_DIR=/var/hadoop/pids
 118
 119 # Seconds to sleep between slave commands.  Unset by default.  This
 120 # can be useful in large clusters, where, e.g., slave rsyncs can
 121 # otherwise arrive faster than the master can service them.
 122 # export HBASE_SLAVE_SLEEP=0.1
 123
 124 # Tell HBase whether it should manage it's own instance of ZooKeeper or not.
 125 # export HBASE_MANAGES_ZK=true
 126
 127 # The default log rolling policy is RFA, where the log file is rolled as per the size defined for the
 128 # RFA appender. Please refer to the log4j.properties file to see more details on this appender.
 129 # In case one needs to do log rolling on a date change, one should set the environment property
 130 # HBASE_ROOT_LOGGER to "<DESIRED_LOG LEVEL>,DRFA".
 131 # For example:
 132 # HBASE_ROOT_LOGGER=INFO,DRFA
 133 # The reason for changing default to RFA is to avoid the boundary case of filling out disk space as
 134 # DRFA doesn't put any cap on the log size. Please refer to HBase-5655 for more context.