生产环境实战spark （7）分布式集群 5台设备 Hadoop集群安装
生产环境实战spark （7）分布式集群 5台设备 Hadoop集群安装
1，Hadoop 下载。
下载地址：http://hadoop.apache.org/releases.html
下载版本：hadoop 2.6.5 版本 hadoop 2.6.x版本比较稳定
2，使用winscp工具上传到master节点。 检查： [root@master rhzf_spark_setupTools]# ls
hadoop-2.6.5.tar.gz jdk-8u121-linux-x64.tar.gz scala-2.11.8.zip
[root@master rhzf_spark_setupTools]#
3，解压缩安装hadoop。
[root@master rhzf_spark_setupTools]# tar -zxvf hadoop-2.6.5.tar.gz
[root@master hadoop-2.6.5]# vi /etc/profile
export JAVA_HOME=/usr/local/jdk1.8.0_121
export SCALA_HOME=/usr/local/scala-2.11.8
export HADOOP_HOME=/usr/local/hadoop-2.6.5
export PATH=.:$PATH:$JAVA_HOME/bin:$SCALA_HOME/bin:$HADOOP_HOME/bin
在命令行中输入source /etc/profile，使刚才修改的HADOOP_HOME及PATH配置文件生效
[root@master hadoop-2.6.5]# source /etc/profile
[root@master hadoop-2.6.5]#
4，Hadoop core-site.xml配置文件修改。 [root@master hadoop]# cat core-site.xml
<?xml version="1.0" encoding="UTF-8"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
<!--
Licensed 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. See accompanying LICENSE file.
-->
<!-- Put site-specific property overrides in this file. -->
<configuration>
<property>
<name>hadoop.tmp.dir</name>
<value> /usr/local/hadoop-2.6.5/tmp</value>
<description>hadoop.tmp.dir</description>
</property>
<property>
<name>fs.defaultFS</name>
<value>hdfs://Master:9000</value>
</property>
<property>
<name>hadoop.native.lib</name>
<value>false</value>
<description>no use native hadoop libraries </description>
</property>
</configuration>
[root@master hadoop]#
5，Hadoop hdfs-site.xml配置文件修改。
[root@master hadoop]# cat hdfs-site.xml
<?xml version="1.0" encoding="UTF-8"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
<!--
Licensed 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. See accompanying LICENSE file.
-->
<!-- Put site-specific property overrides in this file. -->
<configuration>
<property>
<name>dfs.replication</name>
<value>3</value>
</property>
<property>
<name>dfs.namenode.name.dir</name>
<value>/usr/local/hadoop-2.6.5/tmp/dfs/name</value>
</property>
<property>
<name>dfs.datanode.data.dir</name>
<value>/usr/local/hadoop-2.6.5/tmp/dfs/data</value>
</property>
</configuration>
[root@master hadoop]#
6，Hadoop hadoop-env.sh配置文件修改。[root@master hadoop]# cat hadoop-env.sh
# 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=${JAVA_HOME}
# The jsvc implementation to use. Jsvc is required to run secure datanodes
# that bind to privileged ports to provide authentication of data transfer
# protocol. Jsvc is not required if SASL is configured for authentication of
# data transfer protocol using non-privileged ports.
#export JSVC_HOME=${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 $HADOOP_JAVA_PLATFORM_OPTS"
# On secure datanodes, user to run the datanode as after dropping privileges.
# This **MUST** be uncommented to enable secure HDFS if using privileged ports
# to provide authentication of data transfer protocol. This **MUST NOT** be
# defined if SASL is configured for authentication of data transfer protocol
# using non-privileged ports.
export HADOOP_SECURE_DN_USER=${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}/${HADOOP_HDFS_USER}
###
# HDFS Mover specific parameters
###
# Specify the JVM options to be used when starting the HDFS Mover.
# These options will be appended to the options specified as HADOOP_OPTS
# and therefore may override any similar flags set in HADOOP_OPTS
#
# export HADOOP_MOVER_OPTS=""
###
# Advanced Users Only!
###
# The directory where pid files are stored. /tmp by default.
# NOTE: this should be set to a directory that can only be written to by
# the user that will run the hadoop daemons. Otherwise there is the
# potential for a symlink attack.
export HADOOP_PID_DIR=${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
export JAVA_HOME=/usr/local/jdk1.8.0_121
[root@master hadoop]#
7，Hadoop master slaves配置文件修改。master作为主节点和数据处理节点。
[root@master hadoop]# cat slaves
master
worker01
worker02
worker03
worker04
[root@master hadoop]#
Hadoop最简 最小化配置完成
8，编写脚本，将Hadoop 文件分发到worker节点。[root@master local]# cd rhzf_setup_scripts
[root@master rhzf_setup_scripts]# ls
rhzf_hosts_scp.sh rhzf_scala.sh rhzf_ssh.sh
[root@master rhzf_setup_scripts]# vi rhzf_hadoop.sh
#!/bin/sh
for i in 238 239 240 241
do
scp -rq /usr/local/hadoop-2.6.5 [email protected].$i:/usr/local/hadoop-2.6.5
scp -rq /etc/profile [email protected].$i:/etc/profile
ssh [email protected].$i source /etc/profile
done
执行脚本
[root@master rhzf_setup_scripts]# chmod u+x rhzf_hadoop.sh
[root@master rhzf_setup_scripts]# ls
rhzf_hadoop.sh rhzf_hosts_scp.sh rhzf_scala.sh rhzf_ssh.sh
[root@master rhzf_setup_scripts]# ./rhzf_hadoop.sh
[root@master rhzf_setup_scripts]#
9，worker节点检查。 Last login: Wed Apr 19 10:12:34 2017 from 132.150.75.19
[root@worker01 ~]# cd /usr/local
[root@worker01 local]# ls
bin etc games hadoop-2.6.5 include lib lib64 libexec sbin scala-2.11.8 share src
[root@worker01 local]#
Last login: Wed Apr 19 10:12:39 2017 from 132.150.75.19
[root@worker02 ~]# cd /usr/local
[root@worker02 local]# ls
bin etc games hadoop-2.6.5 include lib lib64 libexec sbin scala-2.11.8 share src
[root@worker02 local]#
Last login: Wed Apr 19 10:12:44 2017 from 132.150.75.19
[root@worker03 ~]# cd /usr/local
[root@worker03 local]# ls
bin etc games hadoop-2.6.5 include lib lib64 libexec sbin scala-2.11.8 share src
[root@worker03 local]#
Last login: Wed Apr 19 10:12:49 2017 from 132.150.75.19
[root@worker04 ~]# cd /usr/local
[root@worker04 local]# ls
bin etc games hadoop-2.6.5 include lib lib64 libexec sbin scala-2.11.8 share src
[root@worker04 local]#
10，Hadopp集群文件系统格式化。
[root@master hadoop-2.6.5]# cd bin
[root@master bin]# ls
container-executor hadoop hadoop.cmd hdfs hdfs.cmd mapred mapred.cmd rcc test-container-executor yarn yarn.cmd
[root@master bin]# hdfs namenode -format
17/04/19 15:21:05 INFO namenode.NameNode: STARTUP_MSG:
/************************************************************
STARTUP_MSG: Starting NameNode
STARTUP_MSG: host = master/10.100.100.237
STARTUP_MSG: args = [-format]
STARTUP_MSG: version = 2.6.5
STARTUP_MSG: classpath = /usr/local/hadoop-2.6.5/etc/hadoop:/usr/local/hadoop-2.6.5/share/hadoop/common/lib/commons-beanutils-1.7.0.jar:/usr/local/hadoop- ......略
STARTUP_MSG: build = https://github.com/apache/hadoop.git -r e8c9fe0b4c252caf2ebf1464220599650f119997; compiled by 'sjlee' on 2016-10-02T23:43Z
STARTUP_MSG: java = 1.8.0_121
************************************************************/
17/04/19 15:21:05 INFO namenode.NameNode: registered UNIX signal handlers for [TERM, HUP, INT]
17/04/19 15:21:05 INFO namenode.NameNode: createNameNode [-format]
17/04/19 15:21:05 WARN common.Util: Path /usr/local/hadoop-2.6.5/tmp/dfs/name should be specified as a URI in configuration files. Please update hdfs configuration.
17/04/19 15:21:05 WARN common.Util: Path /usr/local/hadoop-2.6.5/tmp/dfs/name should be specified as a URI in configuration files. Please update hdfs configuration.
Formatting using clusterid: CID-d0ca7040-2c7d-419b-85be-24323b923f2f
17/04/19 15:21:06 INFO namenode.FSNamesystem: No KeyProvider found.
17/04/19 15:21:06 INFO namenode.FSNamesystem: fsLock is fair:true
17/04/19 15:21:06 INFO blockmanagement.DatanodeManager: dfs.block.invalidate.limit=1000
17/04/19 15:21:06 INFO blockmanagement.DatanodeManager: dfs.namenode.datanode.registration.ip-hostname-check=true
17/04/19 15:21:06 INFO blockmanagement.BlockManager: dfs.namenode.startup.delay.block.deletion.sec is set to 000:00:00:00.000
17/04/19 15:21:06 INFO blockmanagement.BlockManager: The block deletion will start around 2017 Apr 19 15:21:06
17/04/19 15:21:06 INFO util.GSet: Computing capacity for map BlocksMap
17/04/19 15:21:06 INFO util.GSet: VM type = 64-bit
17/04/19 15:21:06 INFO util.GSet: 2.0% max memory 889 MB = 17.8 MB
17/04/19 15:21:06 INFO util.GSet: capacity = 2^21 = 2097152 entries
17/04/19 15:21:06 INFO blockmanagement.BlockManager: dfs.block.access.token.enable=false
17/04/19 15:21:06 INFO blockmanagement.BlockManager: defaultReplication = 3
17/04/19 15:21:06 INFO blockmanagement.BlockManager: maxReplication = 512
17/04/19 15:21:06 INFO blockmanagement.BlockManager: minReplication = 1
17/04/19 15:21:06 INFO blockmanagement.BlockManager: maxReplicationStreams = 2
17/04/19 15:21:06 INFO blockmanagement.BlockManager: replicationRecheckInterval = 3000
17/04/19 15:21:06 INFO blockmanagement.BlockManager: encryptDataTransfer = false
17/04/19 15:21:06 INFO blockmanagement.BlockManager: maxNumBlocksToLog = 1000
17/04/19 15:21:06 INFO namenode.FSNamesystem: fsOwner = root (auth:SIMPLE)
17/04/19 15:21:06 INFO namenode.FSNamesystem: supergroup = supergroup
17/04/19 15:21:06 INFO namenode.FSNamesystem: isPermissionEnabled = true
17/04/19 15:21:06 INFO namenode.FSNamesystem: HA Enabled: false
17/04/19 15:21:06 INFO namenode.FSNamesystem: Append Enabled: true
17/04/19 15:21:06 INFO util.GSet: Computing capacity for map INodeMap
17/04/19 15:21:06 INFO util.GSet: VM type = 64-bit
17/04/19 15:21:06 INFO util.GSet: 1.0% max memory 889 MB = 8.9 MB
17/04/19 15:21:06 INFO util.GSet: capacity = 2^20 = 1048576 entries
17/04/19 15:21:06 INFO namenode.NameNode: Caching file names occuring more than 10 times
17/04/19 15:21:06 INFO util.GSet: Computing capacity for map cachedBlocks
17/04/19 15:21:06 INFO util.GSet: VM type = 64-bit
17/04/19 15:21:06 INFO util.GSet: 0.25% max memory 889 MB = 2.2 MB
17/04/19 15:21:06 INFO util.GSet: capacity = 2^18 = 262144 entries
17/04/19 15:21:06 INFO namenode.FSNamesystem: dfs.namenode.safemode.threshold-pct = 0.9990000128746033
17/04/19 15:21:06 INFO namenode.FSNamesystem: dfs.namenode.safemode.min.datanodes = 0
17/04/19 15:21:06 INFO namenode.FSNamesystem: dfs.namenode.safemode.extension = 30000
17/04/19 15:21:06 INFO namenode.FSNamesystem: Retry cache on namenode is enabled
17/04/19 15:21:06 INFO namenode.FSNamesystem: Retry cache will use 0.03 of total heap and retry cache entry expiry time is 600000 millis
17/04/19 15:21:06 INFO util.GSet: Computing capacity for map NameNodeRetryCache
17/04/19 15:21:06 INFO util.GSet: VM type = 64-bit
17/04/19 15:21:06 INFO util.GSet: 0.029999999329447746% max memory 889 MB = 273.1 KB
17/04/19 15:21:06 INFO util.GSet: capacity = 2^15 = 32768 entries
17/04/19 15:21:06 INFO namenode.NNConf: ACLs enabled? false
17/04/19 15:21:06 INFO namenode.NNConf: XAttrs enabled? true
17/04/19 15:21:06 INFO namenode.NNConf: Maximum size of an xattr: 16384
17/04/19 15:21:06 INFO namenode.FSImage: Allocated new BlockPoolId: BP-1333219187-10.100.100.237-1492586466692
17/04/19 15:21:06 INFO common.Storage: Storage directory /usr/local/hadoop-2.6.5/tmp/dfs/name has been successfully formatted.
17/04/19 15:21:06 INFO namenode.FSImageFormatProtobuf: Saving image file /usr/local/hadoop-2.6.5/tmp/dfs/name/current/fsimage.ckpt_0000000000000000000 using no compression
17/04/19 15:21:06 INFO namenode.FSImageFormatProtobuf: Image file /usr/local/hadoop-2.6.5/tmp/dfs/name/current/fsimage.ckpt_0000000000000000000 of size 321 bytes saved in 0 seconds.
17/04/19 15:21:06 INFO namenode.NNStorageRetentionManager: Going to retain 1 images with txid >= 0
17/04/19 15:21:06 INFO util.ExitUtil: Exiting with status 0
17/04/19 15:21:06 INFO namenode.NameNode: SHUTDOWN_MSG:
/************************************************************
SHUTDOWN_MSG: Shutting down NameNode at master/10.100.100.237
************************************************************/
[root@master bin]#
11，启动Hadopp集群。
[root@master sbin]# start-all.sh
This script is Deprecated. Instead use start-dfs.sh and start-yarn.sh
Starting namenodes on [Master]
Master: Warning: Permanently added the ECDSA host key for IP address '10.100.100.237' to the list of known hosts.
Master: starting namenode, logging to /usr/local/hadoop-2.6.5/logs/hadoop-root-namenode-master.out
worker04: Warning: Permanently added 'worker04' (ECDSA) to the list of known hosts.
master: starting datanode, logging to /usr/local/hadoop-2.6.5/logs/hadoop-root-datanode-master.out
worker04: starting datanode, logging to /usr/local/hadoop-2.6.5/logs/hadoop-root-datanode-worker04.out
worker03: starting datanode, logging to /usr/local/hadoop-2.6.5/logs/hadoop-root-datanode-worker03.out
worker01: starting datanode, logging to /usr/local/hadoop-2.6.5/logs/hadoop-root-datanode-worker01.out
worker02: starting datanode, logging to /usr/local/hadoop-2.6.5/logs/hadoop-root-datanode-worker02.out
worker04: /usr/local/hadoop-2.6.5/bin/hdfs: line 276: /usr/local/jdk1.8.0_121/bin/java: No such file or directory
worker03: /usr/local/hadoop-2.6.5/bin/hdfs: line 276: /usr/local/jdk1.8.0_121/bin/java: No such file or directory
worker01: /usr/local/hadoop-2.6.5/bin/hdfs: line 276: /usr/local/jdk1.8.0_121/bin/java: No such file or directory
worker02: /usr/local/hadoop-2.6.5/bin/hdfs: line 276: /usr/local/jdk1.8.0_121/bin/java: No such file or directory
Starting secondary namenodes [0.0.0.0]
0.0.0.0: Warning: Permanently added '0.0.0.0' (ECDSA) to the list of known hosts.
0.0.0.0: starting secondarynamenode, logging to /usr/local/hadoop-2.6.5/logs/hadoop-root-secondarynamenode-master.out
starting yarn daemons
starting resourcemanager, logging to /usr/local/hadoop-2.6.5/logs/yarn-root-resourcemanager-master.out
worker04: starting nodemanager, logging to /usr/local/hadoop-2.6.5/logs/yarn-root-nodemanager-worker04.out
worker02: starting nodemanager, logging to /usr/local/hadoop-2.6.5/logs/yarn-root-nodemanager-worker02.out
master: starting nodemanager, logging to /usr/local/hadoop-2.6.5/logs/yarn-root-nodemanager-master.out
worker01: starting nodemanager, logging to /usr/local/hadoop-2.6.5/logs/yarn-root-nodemanager-worker01.out
worker03: starting nodemanager, logging to /usr/local/hadoop-2.6.5/logs/yarn-root-nodemanager-worker03.out
worker04: /usr/local/hadoop-2.6.5/bin/yarn: line 284: /usr/local/jdk1.8.0_121/bin/java: No such file or directory
worker02: /usr/local/hadoop-2.6.5/bin/yarn: line 284: /usr/local/jdk1.8.0_121/bin/java: No such file or directory
worker01: /usr/local/hadoop-2.6.5/bin/yarn: line 284: /usr/local/jdk1.8.0_121/bin/java: No such file or directory
worker03: /usr/local/hadoop-2.6.5/bin/yarn: line 284: /usr/local/jdk1.8.0_121/bin/java: No such file or directory
[root@master sbin]#
[root@master sbin]#
[root@master sbin]# jps
20609 SecondaryNameNode
20420 DataNode
20789 ResourceManager
20903 NodeManager
21225 Jps
20266 NameNode
[root@master sbin]#
之前在master节点将java升级更新了，但4个woker节点上 java没有更新升级
[root@worker04 local]# java -version
java version "1.7.0_51"
OpenJDK Runtime Environment (rhel-2.4.5.5.el7-x86_64 u51-b31)
OpenJDK 64-Bit Server VM (build 24.51-b03, mixed mode)
[root@worker04 local]# jps
bash: jps: command not found...
[root@worker04 local]#
12，woker节点上安装java 8 [root@master rhzf_setup_scripts]# cat rhzf_jdk.sh
#!/bin/sh
for i in 238 239 240 241
do
ssh root@10.*.*.$i rpm -e --nodeps java-1.7.0-openjdk-1.7.0.51-2.4.5.5.el7.x86_64
ssh root@10.*.*.$i rpm -e --nodeps java-1.7.0-openjdk-headless-1.7.0.51-2.4.5.5.el7.x86_64
scp -rq /usr/local/jdk1.8.0_121 root@10.*.*.$i:/usr/local/jdk1.8.0_121
done
[root@master rhzf_setup_scripts]# ./rhzf_jdk.sh
-bash: ./rhzf_jdk.sh: Permission denied
[root@master rhzf_setup_scripts]# ls
rhzf_hadoop.sh rhzf_hosts_scp.sh rhzf_jdk.sh rhzf_scala.sh rhzf_ssh.sh
[root@master rhzf_setup_scripts]# chmod u+x rhzf_jdk.sh
[root@master rhzf_setup_scripts]# ls
rhzf_hadoop.sh rhzf_hosts_scp.sh rhzf_jdk.sh rhzf_scala.sh rhzf_ssh.sh
[root@master rhzf_setup_scripts]# ./rhzf_jdk.sh
刷新
# source /etc/profile
检查4个woker节点上jdk 安装完成
[root@worker01 local]# java -version
java version "1.8.0_121"
Java(TM) SE Runtime Environment (build 1.8.0_121-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.121-b13, mixed mode)
[root@worker01 local]#
[root@worker02 bin]# java -version
java version "1.8.0_121"
Java(TM) SE Runtime Environment (build 1.8.0_121-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.121-b13, mixed mode)
[root@worker02 bin]#
[root@worker03 local]# source /etc/profile
[root@worker03 local]# java -version
java version "1.8.0_121"
Java(TM) SE Runtime Environment (build 1.8.0_121-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.121-b13, mixed mode)
[root@worker03 local]#
[root@worker04 local]# source /etc/profile
[root@worker04 local]# java -version
java version "1.8.0_121"
Java(TM) SE Runtime Environment (build 1.8.0_121-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.121-b13, mixed mode)
[root@worker04 local]#
13，停止Hadoop集群
[root@master sbin]# stop-all.sh
This script is Deprecated. Instead use stop-dfs.sh and stop-yarn.sh
Stopping namenodes on [Master]
Master: stopping namenode
worker04: no datanode to stop
master: stopping datanode
worker02: no datanode to stop
worker01: no datanode to stop
worker03: no datanode to stop
Stopping secondary namenodes [0.0.0.0]
0.0.0.0: stopping secondarynamenode
stopping yarn daemons
stopping resourcemanager
worker04: no nodemanager to stop
worker03: no nodemanager to stop
master: stopping nodemanager
worker01: no nodemanager to stop
worker02: no nodemanager to stop
no proxyserver to stop
[root@master sbin]#
14，再次重启Hadoop集群，一切正常
[root@master sbin]# start-all.sh
This script is Deprecated. Instead use start-dfs.sh and start-yarn.sh
Starting namenodes on [Master]
Master: starting namenode, logging to /usr/local/hadoop-2.6.5/logs/hadoop-root-namenode-master.out
worker04: starting datanode, logging to /usr/local/hadoop-2.6.5/logs/hadoop-root-datanode-worker04.out
master: starting datanode, logging to /usr/local/hadoop-2.6.5/logs/hadoop-root-datanode-master.out
worker03: starting datanode, logging to /usr/local/hadoop-2.6.5/logs/hadoop-root-datanode-worker03.out
worker01: starting datanode, logging to /usr/local/hadoop-2.6.5/logs/hadoop-root-datanode-worker01.out
worker02: starting datanode, logging to /usr/local/hadoop-2.6.5/logs/hadoop-root-datanode-worker02.out
Starting secondary namenodes [0.0.0.0]
0.0.0.0: starting secondarynamenode, logging to /usr/local/hadoop-2.6.5/logs/hadoop-root-secondarynamenode-master.out
starting yarn daemons
starting resourcemanager, logging to /usr/local/hadoop-2.6.5/logs/yarn-root-resourcemanager-master.out
worker04: starting nodemanager, logging to /usr/local/hadoop-2.6.5/logs/yarn-root-nodemanager-worker04.out
worker02: starting nodemanager, logging to /usr/local/hadoop-2.6.5/logs/yarn-root-nodemanager-worker02.out
master: starting nodemanager, logging to /usr/local/hadoop-2.6.5/logs/yarn-root-nodemanager-master.out
worker01: starting nodemanager, logging to /usr/local/hadoop-2.6.5/logs/yarn-root-nodemanager-worker01.out
worker03: starting nodemanager, logging to /usr/local/hadoop-2.6.5/logs/yarn-root-nodemanager-worker03.out
[root@master sbin]# jps
22869 ResourceManager
22330 NameNode
22490 DataNode
23323 Jps
22684 SecondaryNameNode
22990 NodeManager
[root@master sbin]#
4个worker节点检查
[root@worker01 local]# jps
20752 DataNode
20884 NodeManager
21001 Jps
[root@worker01 local]#
[root@worker02 bin]# jps
20771 DataNode
21019 Jps
20895 NodeManager
[root@worker02 bin]#
[root@worker03 local]#
[root@worker03 local]# jps
20528 DataNode
20658 NodeManager
20775 Jps
[root@worker03 local]#
[root@worker04 local]# jps
20624 NodeManager
20500 DataNode
20748 Jps
[root@worker04 local]#
