Building hadoop Cluster (2) High availability of YARN
[root@hadoop01 ~]# vim /usr/local/hadoop-2.7.1/etc/hadoop/yarn-site.xml
yarn.nodemanager.aux-services
mapreduce_shuffle
yarn.resourcemanager.ha.enabled
true
yarn.resourcemanager.ha.automatic-failover.enabled
true
yarn.resourcemanager.cluster-id
qianfengyarn
yarn.resourcemanager.ha.rm-ids
rm1,rm2
yarn.resourcemanager.hostname.rm1
hadoop01
yarn.resourcemanager.hostname.rm2
hadoop02
yarn.resourcemanager.webapp.address.rm1
hadoop01:8088
yarn.resourcemanager.webapp.address.rm2
hadoop02:8088
yarn.resourcemanager.zk-address
hadoop01:2181,hadoop02:2181,hadoop03:2181
[root@hadoop01 hadoop-2.7.1]# vim ./ etc/hadoop/mapred-site.xml
mapreduce.framework.name
yarn
true
mapreduce.map.memory.mb
1024
mapreduce.jobhistory.address
hadoop01:10020
mapreduce.jobhistory.webapp.address
hadoop01:19888
Send to cluster server
[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
View ResourceManager status
[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
Cluster all machines start zookeeper, zkServer.sh start
[root@hadoop01 ~]# yarn-daemon.sh start resourcemanager
[root@hadoop01 ~]# start-dfs.sh
All processes must be present, please check carefully
[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
test
hadoop jar /usr/local/hadoop-2.7.1/share/hadoop/mapreduce/hadoop-mapreduce-examples-2.7.1.jar wordcount /README.txt /out/05
