hadoop集群搭建（二）YARN高可用

[root@hadoop01 ~]# vim /usr/local/hadoop-2.7.1/etc/hadoop/yarn-site.xml

<!-- Site specific YARN configuration properties -->

<property>

<name>yarn.nodemanager.aux-services</name>

<!--注意：这里是下滑线-->

<value>mapreduce_shuffle</value>

</property>

<property>

<name>yarn.resourcemanager.ha.enabled</name>

<value>true</value>

</property>

<!--失败转移默认开启-->

<property>

<name>yarn.resourcemanager.ha.automatic-failover.enabled</name>

<value>true</value>

</property>

<property>

<name>yarn.resourcemanager.cluster-id</name>

<value>qianfengyarn</value>

</property>

<property>

<name>yarn.resourcemanager.ha.rm-ids</name>

<value>rm1,rm2</value>

</property>

<property>

<name>yarn.resourcemanager.hostname.rm1</name>

<value>hadoop01</value>

</property>

<property>

<name>yarn.resourcemanager.hostname.rm2</name>

<value>hadoop02</value>

</property>

<property>

<name>yarn.resourcemanager.webapp.address.rm1</name>

<value>hadoop01:8088</value>

</property>

<property>

<name>yarn.resourcemanager.webapp.address.rm2</name>

<value>hadoop02:8088</value>

</property>

<property>

<name>yarn.resourcemanager.zk-address</name>

<value>hadoop01:2181,hadoop02:2181,hadoop03:2181</value>

</property>

[root@hadoop01 hadoop-2.7.1]# vim ./etc/hadoop/mapred-site.xml

<property>

<name>mapreduce.framework.name</name>

<value>yarn</value>

<final>true</final>

</property>

<property>

<name>mapreduce.map.memory.mb</name>

<value>1024</value>

</property>

<property>

<name>mapreduce.jobhistory.address</name>

<value>hadoop01:10020</value>

</property>

<property>

<name>mapreduce.jobhistory.webapp.address</name>

<value>hadoop01:19888</value>

</property>

发送到集群服务器

[root@hadoop01 hadoop-2.7.1]# scp -r ./etc/hadoop/mapred-site.xml hadoop02:/usr/local/hadoop-2.7.1/etc/hadoop/

mapred-site.xml                                                                        100% 1218     1.2KB/s   00:00

[root@hadoop01 hadoop-2.7.1]# scp -r ./etc/hadoop/mapred-site.xml hadoop03:/usr/local/hadoop-2.7.1/etc/hadoop/

mapred-site.xml                                                                        100% 1218     1.2KB/s   00:00

[root@hadoop01 hadoop-2.7.1]# scp -r ./etc/hadoop/yarn-site.xml hadoop03:/usr/local/hadoop-2.7.1/etc/hadoop/

yarn-site.xml                                                                          100% 1845     1.8KB/s   00:00

[root@hadoop01 hadoop-2.7.1]# scp -r ./etc/hadoop/yarn-site.xml hadoop02:/usr/local/hadoop-2.7.1/etc/hadoop/

yarn-site.xml

[root@hadoop01 hadoop-2.7.1]# start-yarn.sh

starting yarn daemons

starting resourcemanager, logging to /usr/local/hadoop-2.7.1/logs/yarn-root-resourcemanager-hadoop01.out

hadoop01: starting nodemanager, logging to /usr/local/hadoop-2.7.1/logs/yarn-root-nodemanager-hadoop01.out

hadoop03: starting nodemanager, logging to /usr/local/hadoop-2.7.1/logs/yarn-root-nodemanager-hadoop03.out

hadoop02: starting nodemanager, logging to /usr/local/hadoop-2.7.1/logs/yarn-root-nodemanager-hadoop02.out

[root@hadoop02 sbin]# yarn-daemon.sh start resourcemanager

starting resourcemanager, logging to /usr/local/hadoop-2.7.1/logs/yarn-root-resourcemanager-hadoop02.out

查看ResourceManager状态

[root@hadoop01 hadoop-2.7.1]# yarn rmadmin -getServiceState rm1

18/01/13 16:17:56 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable

active

[root@hadoop02 sbin]# yarn rmadmin -getServiceState rm2

18/01/13 16:20:51 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable

standby

[root@hadoop01 ~]# start-all.sh

[root@hadoop01 ~]# service ntpd start

集群所有机器开启zookeeper，zkServer.sh start

[root@hadoop01 ~]# yarn-daemon.sh start resourcemanager

[root@hadoop01 ~]# start-dfs.sh

所有的进程必须都有，请仔细核对

[root@hadoop01 logs]# jps

8608 JobHistoryServer

16833 DataNode

3155 QuorumPeerMain

17300 ResourceManager

17463 Jps

16727 NameNode

17210 DFSZKFailoverController

17423 NodeManager

17055 JournalNode

[root@hadoop02 ~]# jps

9472 DFSZKFailoverController

7108 ResourceManager

9254 DataNode

9719 Jps

9353 JournalNode

9566 NodeManager

9183 NameNode

2751 QuorumPeerMain

[root@hadoop03 ~]# jps

2546 QuorumPeerMain

6738 Jps

6503 JournalNode

6408 DataNode

6606 NodeManager

8608 JobHistoryServer

[root@hadoop01 logs]# mr-jobhistory-daemon.sh stop historyserver

[root@hadoop01 logs]# mr-jobhistory-daemon.sh start historyserver

7108 ResourceManager

[root@hadoop02 ~]# stop-yarn.sh

stopping yarn daemons

stopping resourcemanager

hadoop02: no nodemanager to stop

hadoop01: no nodemanager to stop

hadoop03: no nodemanager to stop

no proxyserver to stop

[root@hadoop02 sbin]# yarn-daemon.sh start resourcemanager

[root@hadoop02 ~]# hadoop-daemon.sh start namenode

starting namenode, logging to /usr/local/hadoop-2.7.1/logs/hadoop-root-namenode-hadoop02.out

测试

hadoop jar /usr/local/hadoop-2.7.1/share/hadoop/mapreduce/hadoop-mapreduce-examples-2.7.1.jar wordcount /README.txt /out/05