hadoop2.4.1集群安装一

配置主机名参考Hadoop 1.2.1 集群安装一 配置JDK环境参考Hadoop1.2.1集群安装二 配置hadoop A：下载解压hadoop http://mirrors.cnnic.cn/apache/hadoop/common/hadoop-2.4.1/hadoop-2.4.1.tar.gz 在/home/jifeng 创建目录 mkdir hadoop hadoop-2.4.1.tar.gz

配置主机名参考 Hadoop 1.2.1 集群安装一

配置JDK环境参考Hadoop1.2.1集群安装二

配置hadoop

A：下载解压hadoop

http://mirrors.cnnic.cn/apache/hadoop/common/hadoop-2.4.1/hadoop-2.4.1.tar.gz

在/home/jifeng 创建目录 mkdir hadoop

hadoop-2.4.1.tar.gz下载保存到/home/jifeng/hadoop

tar zxf hadoop-1.2.1.tar.gz

B:配置

涉及到的配置文件有7个，在hadoop-2.4.1的目录下：
/etc/hadoop/hadoop-env.sh
/etc/hadoop/yarn-env.sh
/etc/hadoop/slaves
/etc/hadoop/core-site.xml
/etc/hadoop/hdfs-site.xml
/etc/hadoop/mapred-site.xml
/etc/hadoop/yarn-site.xml
以上个别文件默认丌存在的，可以复制相应的template文件获得。

1:hadoop-env.sh

配置 JAVA_HOME

# Copyright 2011 The Apache Software Foundation
# 
# 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=/home/jifeng/jdk1.7.0_45

# The jsvc implementation to use. Jsvc is required to run secure datanodes.
#export JSVC_HOME=${JSVC_HOME}

export HADOOP_CONF_DIR=${HADOOP_CONF_DIR:-"/etc/hadoop"}

# 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"

export HADOOP_SECONDARYNAMENODE_OPTS="-Dhadoop.security.logger=${HADOOP_SECURITY_LOGGER:-INFO,RFAS} -Dhdfs.audit.logger=${HDFS_AUDIT_LOGGER:-INFO,NullAppender} $HADOOP_SECONDARYNAMENODE_OPTS"

export HADOOP_NFS3_OPTS="$HADOOP_NFS3_OPTS"
export HADOOP_PORTMAP_OPTS="-Xmx512m $HADOOP_PORTMAP_OPTS"

# The following applies to multiple commands (fs, dfs, fsck, distcp etc)
export HADOOP_CLIENT_OPTS="-Xmx512m $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
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}

# 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=${HADOOP_PID_DIR}
export HADOOP_SECURE_DN_PID_DIR=${HADOOP_PID_DIR}

# A string representing this instance of hadoop. $USER by default.
export HADOOP_IDENT_STRING=$USER

配置JAVA_HOME

# 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.

# User for YARN daemons
export HADOOP_YARN_USER=${HADOOP_YARN_USER:-yarn}

# resolve links - $0 may be a softlink
export YARN_CONF_DIR="${YARN_CONF_DIR:-$HADOOP_YARN_HOME/conf}"

# some Java parameters
export JAVA_HOME=/home/jifeng/jdk1.7.0_45
if [ "$JAVA_HOME" != "" ]; then
 #echo "run java in $JAVA_HOME"
 JAVA_HOME=$JAVA_HOME
fi
 
if [ "$JAVA_HOME" = "" ]; then
 echo "Error: JAVA_HOME is not set."
 exit 1
fi

JAVA=$JAVA_HOME/bin/java
JAVA_HEAP_MAX=-Xmx1000m 

# For setting YARN specific HEAP sizes please use this
# Parameter and set appropriately
# YARN_HEAPSIZE=1000

# check envvars which might override default args
if [ "$YARN_HEAPSIZE" != "" ]; then
 JAVA_HEAP_MAX="-Xmx""$YARN_HEAPSIZE""m"
fi

# Resource Manager specific parameters

# Specify the max Heapsize for the ResourceManager using a numerical value
# in the scale of MB. For example, to specify an jvm option of -Xmx1000m, set
# the value to 1000.
# This value will be overridden by an Xmx setting specified in either YARN_OPTS
# and/or YARN_RESOURCEMANAGER_OPTS.
# If not specified, the default value will be picked from either YARN_HEAPMAX
# or JAVA_HEAP_MAX with YARN_HEAPMAX as the preferred option of the two.
#export YARN_RESOURCEMANAGER_HEAPSIZE=1000

# Specify the max Heapsize for the HistoryManager using a numerical value
# in the scale of MB. For example, to specify an jvm option of -Xmx1000m, set
# the value to 1000.
# This value will be overridden by an Xmx setting specified in either YARN_OPTS
# and/or YARN_HISTORYSERVER_OPTS.
# If not specified, the default value will be picked from either YARN_HEAPMAX
# or JAVA_HEAP_MAX with YARN_HEAPMAX as the preferred option of the two.
#export YARN_HISTORYSERVER_HEAPSIZE=1000

# Specify the JVM options to be used when starting the ResourceManager.
# These options will be appended to the options specified as YARN_OPTS
# and therefore may override any similar flags set in YARN_OPTS
#export YARN_RESOURCEMANAGER_OPTS=

# Node Manager specific parameters

# Specify the max Heapsize for the NodeManager using a numerical value
# in the scale of MB. For example, to specify an jvm option of -Xmx1000m, set
# the value to 1000.
# This value will be overridden by an Xmx setting specified in either YARN_OPTS
# and/or YARN_NODEMANAGER_OPTS.
# If not specified, the default value will be picked from either YARN_HEAPMAX
# or JAVA_HEAP_MAX with YARN_HEAPMAX as the preferred option of the two.
#export YARN_NODEMANAGER_HEAPSIZE=1000

# Specify the JVM options to be used when starting the NodeManager.
# These options will be appended to the options specified as YARN_OPTS
# and therefore may override any similar flags set in YARN_OPTS
#export YARN_NODEMANAGER_OPTS=

# so that filenames w/ spaces are handled correctly in loops below
IFS=


# default log directory & file
if [ "$YARN_LOG_DIR" = "" ]; then
 YARN_LOG_DIR="$HADOOP_YARN_HOME/logs"
fi
if [ "$YARN_LOGFILE" = "" ]; then
 YARN_LOGFILE='yarn.log'
fi

# default policy file for service-level authorization
if [ "$YARN_POLICYFILE" = "" ]; then
 YARN_POLICYFILE="hadoop-policy.xml"
fi

# restore ordinary behaviour
unset IFS


YARN_OPTS="$YARN_OPTS -Dhadoop.log.dir=$YARN_LOG_DIR"
YARN_OPTS="$YARN_OPTS -Dyarn.log.dir=$YARN_LOG_DIR"
YARN_OPTS="$YARN_OPTS -Dhadoop.log.file=$YARN_LOGFILE"
YARN_OPTS="$YARN_OPTS -Dyarn.log.file=$YARN_LOGFILE"
YARN_OPTS="$YARN_OPTS -Dyarn.home.dir=$YARN_COMMON_HOME"
YARN_OPTS="$YARN_OPTS -Dyarn.id.str=$YARN_IDENT_STRING"
YARN_OPTS="$YARN_OPTS -Dhadoop.root.logger=${YARN_ROOT_LOGGER:-INFO,console}"
YARN_OPTS="$YARN_OPTS -Dyarn.root.logger=${YARN_ROOT_LOGGER:-INFO,console}"
if [ "x$JAVA_LIBRARY_PATH" != "x" ]; then
 YARN_OPTS="$YARN_OPTS -Djava.library.path=$JAVA_LIBRARY_PATH"
fi 
YARN_OPTS="$YARN_OPTS -Dyarn.policy.file=$YARN_POLICYFILE"

fs.defaultFS
hdfs://feng01:9000


io.file.buffer.size
131072


hadoop.tmp.dir
file:/home/jifeng/hadoop/tmp
Abase for other temporary directories.


hadoop.proxyuser.hduser.hosts
*


hadoop.proxyuser.hduser.groups
*

dfs.namenode.secondary.http-address
feng01:9001


dfs.namenode.name.dir
file:/home/jifeng/hadoop/name


dfs.datanode.data.dir
file:/home/jifeng/hadoop/data


dfs.replication
1


dfs.webhdfs.enabled
true

mapreduce.framework.name
yarn


mapreduce.jobhistory.address
feng01:10020


mapreduce.jobhistory.webapp.address
feng01:19888

yarn.nodemanager.aux-services
mapreduce_shuffle


yarn.nodemanager.aux-services.mapreduce.shuffle.class
org.apache.hadoop.mapred.ShuffleHandler


yarn.resourcemanager.address
feng01:8032


yarn.resourcemanager.scheduler.address
feng01:8030


yarn.resourcemanager.resource-tracker.address
feng01:8031


yarn.resourcemanager.admin.address
feng01:8033


yarn.resourcemanager.webapp.address
feng01:8088
 

[jifeng@feng01 hadoop]$ cat slaves
feng02
feng03