集群规划
| 系统版本 | 主机名 | IP | 用途 |
|---|---|---|---|
| CentOS-7.7 | hadoop-test-1 | 192.168.233.65 | namenode datanode DFSZKFailoverController hive hmaster resourcemanager NodeManager |
| CentOS-7.7 | hadoop-test-2 | 192.168.233.94 | namenode datanode DFSZKFailoverController hmaster resourcemanager NodeManager |
| CentOS-7.7 | hadoop-test-3 | 192.168.233.17 | datanode zookeeper NodeManager |
| CentOS-7.7 | hadoop-test-4 | 192.168.233.238 | datanode zookeeper NodeManager |
| CentOS-7.7 | hadoop-test-5 | 192.168.233.157 | datanode zookeeper NodeManager |
hadoop安装
$ wget https://mirrors.tuna.tsinghua.edu.cn/apache/hadoop/common/hadoop-2.10.0/hadoop-2.10.0.tar.gz
$ tar -zxvf hadoop-2.10.0.tar.gz -C /data
$ for i in {1..5};do ssh hadoop-test-$i "mkdir /data/hdfs -p";done
$ for i in {1..5};do ssh hadoop-test-$i "chown -R hadoop.hadoop /data/hdfs ";done
$ su hadoop
$ cd /data/hadoop/etc/hadoop/hdfs-site.xml
$ vim hdfs-site.xml
dfs.block.size
67108864
dfs.replication
3
dfs.nameservices
hadoop-test-cluster
dfs.namenode.name.dir
/data/hdfs/nn
dfs.datanode.data.dir
/data/hdfs/dn
dfs.ha.namenodes.hadoop-test-cluster
nn1,nn2
dfs.namenode.rpc-address.hadoop-test-cluster.nn1
192.168.233.65:8020
dfs.namenode.rpc-address.hadoop-test-cluster.nn2
192.168.233.94:8020
dfs.webhdfs.enabled
true
dfs.journalnode.http-address
0.0.0.0:8480
dfs.journalnode.rpc-address
0.0.0.0:8481
dfs.namenode.http-address.hadoop-test-cluster.nn1
192.168.233.65:50070
dfs.namenode.http-address.hadoop-test-cluster.nn2
192.168.233.94:50070
dfs.namenode.shared.edits.dir
qjournal://192.168.233.17:8481;192.168.233.238:8481;192.168.233.157:8481/mtr-test-cluster
dfs.client.failover.proxy.provider.hadoop-test-cluster
org.apache.hadoop.hdfs.server.namenode.ha.ConfiguredFailoverProxyProvider
dfs.ha.automatic-failover.enabled
true
dfs.ha.fencing.methods
sshfence
dfs.ha.fencing.ssh.private-key-files
/home/hadoop/.ssh/id_rsa
dfs.journalnode.edits.dir
/data/hdfs/journal
ha.zookeeper.quorum
192.168.233.17:2181,192.168.233.238:2181,192.168.233.157:2181
dfs.datanode.hdfs-blocks-metadata.enabled
true
dfs.block.local-path-access.user
impala
dfs.client.file-block-storage-locations.timeout.millis
60000
core-site.xml
$ vim core-site.xml
fs.defaultFS
hdfs://hadoop-test-cluster
hadoop.tmp.dir
/data/hdfs/tmp
hadoop.logfile.size
10000000
每个日志文件的最大值，单位：bytes
hadoop.logfile.count
10
日志文件的最大数量
ha.zookeeper.quorum
192.168.233.17:2181,192.168.233.238:2181,192.168.233.157:2181
dfs.client.read.shortcircuit
true
dfs.client.read.shortcircuit.skip.checksum
false
dfs.datanode.hdfs-blocks-metadata.enabled
true
mapred-site.xml
$ vim mapred-site.xml
mapreduce.framework.name
yarn
mapreduce.jobhistory.address
192.168.233.65:10020
mapreduce.jobhistory.webapp.address
192.168.233.65:19888
yarn-site.xml
$ vim yarn-site.xml
yarn.log-aggregation-enable
true
yarn.log-aggregation.retain-seconds
259200
yarn.resourcemanager.connect.retry-interval.ms
2000
yarn.nodemanager.aux-services
mapreduce_shuffle
yarn.resourcemanager.ha.enabled
true
yarn.resourcemanager.ha.rm-ids
rm1,rm2
ha.zookeeper.quorum
192.168.233.17:2181,192.168.233.238:2181,192.168.233.157:2181
yarn.resourcemanager.ha.automatic-failover.enabled
true
yarn.resourcemanager.hostname.rm1
192.168.233.65
yarn.resourcemanager.hostname.rm2
192.168.233.94
yarn.resourcemanager.ha.id
rm1
If we want to launch more than one RM in single node, we need this configuration
yarn.resourcemanager.zk-address
192.168.233.17:2181,192.168.233.238:2181,192.168.233.157:2181
yarn.resourcemanager.recovery.enabled
true
yarn.resourcemanager.zk-state-store.address
192.168.233.17:2181,192.168.233.238:2181,192.168.233.157:2181
yarn.resourcemanager.store.class
org.apache.hadoop.yarn.server.resourcemanager.recovery.ZKRMStateStore
yarn.app.mapreduce.am.scheduler.connection.wait.interval-ms
5000
yarn.resourcemanager.address.rm1
192.168.233.65:8132
yarn.resourcemanager.scheduler.address.rm1
192.168.233.65:8130
yarn.resourcemanager.webapp.address.rm1
192.168.233.65:8188
yarn.resourcemanager.resource-tracker.address.rm1
192.168.233.65:8131
yarn.resourcemanager.admin.address.rm1
192.168.233.65:8033
yarn.resourcemanager.ha.admin.address.rm1
192.168.233.65:23142
yarn.resourcemanager.address.rm2
192.168.233.94:8132
yarn.resourcemanager.scheduler.address.rm2
192.168.233.94:8130
yarn.resourcemanager.webapp.address.rm2
192.168.233.94:8188
yarn.resourcemanager.resource-tracker.address.rm2
192.168.233.94:8131
yarn.resourcemanager.admin.address.rm2
192.168.233.94:8033
yarn.resourcemanager.ha.admin.address.rm2
192.168.233.94:23142
yarn.log-aggregation-enable
true
yarn.resourcemanager.am.max-attempts
4
yarn.nodemanager.resource.memory-mb
4096
每个节点可用内存,单位MB
yarn.nodemanager.resource.cpu-mb
2
每个节点可用CPU,单位MB
yarn.client.failover-proxy-provider
yarn.resourcemanager.ha.automatic-failover.zk-base-path
/yarn-leader-election
配置dn，slaves
$ vim slaves
hadoop-test-1
hadoop-test-2
hadoop-test-3
hadoop-test-4
hadoop-test-5修改hadoop-env.sh
$ vim hadoop-env.sh
export JAVA_HOME=/usr/local/jdk1.8.0_231
export HADOOP_LOG_DIR=/data/hdfs/logs
export HADOOP_SECURE_DN_LOG_DIR=/data/hdfs/logs
export HADOOP_PRIVILEGED_NFS_LOG_DIR=/data/hdfs/logs
export HADOOP_MAPRED_LOG_DIR=/data/hdfs/logs
export HADOOP_LOG_DIR=/data/hdfs/logs
export YARN_LOG_DIR=/data/hdfs/logs将/data/hadoop拷贝至每个节点的/data/
在hadoop-test-2配置yarn
$ vim yarn-site.xml
yarn.resourcemanager.ha.id
rm1
If we want to launch more than one RM in single node, we need this configuration
所有节点配置.bashrc
$ vim ~/.bashrc
#hadoop
export HADOOP_HOME=/data/hadoop
export PATH=$PATH:$HADOOP_HOME/bin:$HADOOP_HOME/sbin
$ source ~/.bashrc初始化
$ hdfs zkfc -formatZK
20/06/18 11:29:37 INFO tools.DFSZKFailoverController: STARTUP_MSG:
/************************************************************
STARTUP_MSG: Starting DFSZKFailoverController
...
...
...
20/06/18 11:29:38 INFO ha.ActiveStandbyElector: Session connected.
20/06/18 11:29:38 INFO ha.ActiveStandbyElector: Successfully created /hadoop-ha/hadoop-test-cluster in ZK.
20/06/18 11:29:38 INFO zookeeper.ZooKeeper: Session: 0x300002f96aa0000 closed
20/06/18 11:29:38 INFO zookeeper.ClientCnxn: EventThread shut down for session: 0x300002f96aa0000
20/06/18 11:29:38 INFO tools.DFSZKFailoverController: SHUTDOWN_MSG:
/************************************************************
SHUTDOWN_MSG: Shutting down DFSZKFailoverController at hadoop-test-1/192.168.233.65
************************************************************在journalnode启动journalnode
$ hadoop-daemon.sh start journalnode
starting journalnode, logging to /data/hdfs/logs/hadoop-hadoop-journalnode-hadoop-test-3.out
$ jps
9140 Jps
9078 JournalNode
4830 QuorumPeerMain在主namenode格式化journalnode
$ hadoop namenode -format
DEPRECATED: Use of this script to execute hdfs command is deprecated.
Instead use the hdfs command for it.
20/06/18 11:32:42 INFO namenode.NameNode: STARTUP_MSG:
/************************************************************
STARTUP_MSG: Starting NameNode
...
...
...
20/06/18 11:32:44 INFO common.Storage: Storage directory /data/hdfs/nn has been successfully formatted.
20/06/18 11:32:44 INFO namenode.FSImageFormatProtobuf: Saving image file /data/hdfs/nn/current/fsimage.ckpt_0000000000000000000 using no compression
20/06/18 11:32:44 INFO namenode.FSImageFormatProtobuf: Image file /data/hdfs/nn/current/fsimage.ckpt_0000000000000000000 of size 325 bytes saved in 0 seconds .
20/06/18 11:32:44 INFO namenode.NNStorageRetentionManager: Going to retain 1 images with txid >= 0
20/06/18 11:32:44 INFO namenode.FSImage: FSImageSaver clean checkpoint: txid = 0 when meet shutdown.
20/06/18 11:32:44 INFO namenode.NameNode: SHUTDOWN_MSG:
/************************************************************
SHUTDOWN_MSG: Shutting down NameNode at hadoop-test-1/192.168.233.65
************************************************************/查看zk
$ zkCli.sh -server hadoop-test-4:2181
...
...
...
2020-06-18 11:34:25,075 [myid:hadoop-test-4:2181] - INFO [main-SendThread(hadoop-test-4:2181):ClientCnxn$SendThread@959] - Socket connection established, initiating session, client: /192.168.233.157:52598, server: hadoop-test-4/192.168.233.238:2181
2020-06-18 11:34:25,094 [myid:hadoop-test-4:2181] - INFO [main-SendThread(hadoop-test-4:2181):ClientCnxn$SendThread@1394] - Session establishment complete on server hadoop-test-4/192.168.233.238:2181, sessionid = 0x200002f8ee50001, negotiated timeout = 30000
WATCHER::
WatchedEvent state:SyncConnected type:None path:null
[zk: hadoop-test-4:2181(CONNECTED) 0] ls /
[hadoop-ha, zookeeper]
[zk: hadoop-test-4:2181(CONNECTED) 1] ls /hadoop-ha在主namenode启动主namenode
$ hadoop-daemon.sh start namenode
starting namenode, logging to /data/hdfs/logs/hadoop-hadoop-namenode-hadoop-test-1.out
$ jps
10864 NameNode
10951 Jps在备namenode copy主namenode的数据并启动
$ hdfs namenode -bootstrapStandby
20/06/18 11:37:08 INFO namenode.NameNode: STARTUP_MSG:
/************************************************************
STARTUP_MSG: Starting NameNode
...
...
...
20/06/18 11:37:09 INFO namenode.FSEditLog: Edit logging is async:true
20/06/18 11:37:09 INFO namenode.TransferFsImage: Opening connection to http://192.168.233.65:50070/imagetransfer?getimage=1&txid=0&storageInfo=-63:2055238485:1592451163995:CID-e2c9292c-6fca-46eb-aef3-c96149a72ade&bootstrapstandby=true
20/06/18 11:37:09 INFO common.Util: Combined time for fsimage download and fsync to all disks took 0.00s. The fsimage download took 0.00s at 0.00 KB/s. Synchronous (fsync) write to disk of /data/hdfs/nn/current/fsimage.ckpt_0000000000000000000 took 0.00s.
20/06/18 11:37:09 INFO namenode.TransferFsImage: Downloaded file fsimage.ckpt_0000000000000000000 size 325 bytes.
20/06/18 11:37:09 INFO namenode.NameNode: SHUTDOWN_MSG:
/************************************************************
SHUTDOWN_MSG: Shutting down NameNode at hadoop-test-2/192.168.233.94
************************************************************/
$ hadoop-daemon.sh start namenode
starting namenode, logging to /data/hdfs/logs/hadoop-hadoop-namenode-hadoop-test-2.out在主备namenode节点执行
$ hadoop-daemon.sh start zkfc
starting zkfc, logging to /data/hdfs/logs/hadoop-hadoop-zkfc-hadoop-test-1.out
$ hadoop-daemon.sh start zkfc
starting zkfc, logging to /data/hdfs/logs/hadoop-hadoop-zkfc-hadoop-test-2.out在主namenode执行命令启动datanode
$ hadoop-daemons.sh start datanode在主namenode resourcemanager启动yarn
$ start-yarn.sh
starting yarn daemons
starting resourcemanager, logging to /data/hdfs/logs/yarn-hadoop-resourcemanager-hadoop-test-1.out
hadoop-test-1: starting nodemanager, logging to /data/hdfs/logs/yarn-hadoop-nodemanager-hadoop-test-1.out
hadoop-test-4: starting nodemanager, logging to /data/hdfs/logs/yarn-hadoop-nodemanager-hadoop-test-4.out
hadoop-test-2: starting nodemanager, logging to /data/hdfs/logs/yarn-hadoop-nodemanager-hadoop-test-2.out
hadoop-test-3: starting nodemanager, logging to /data/hdfs/logs/yarn-hadoop-nodemanager-hadoop-test-3.out
hadoop-test-5: starting nodemanager, logging to /data/hdfs/logs/yarn-hadoop-nodemanager-hadoop-test-5.out在备namenode resourcemanager启动备resourcemanager
$ start-yarn.sh 查看进程
$ for i in {1..5};do ssh hadoop-test-$i "jps" && echo ---;done
10864 NameNode
12753 NodeManager
17058 Jps
12628 ResourceManager
11381 DataNode
11146 DFSZKFailoverController
---
9201 NameNode
14997 ResourceManager
15701 Jps
9431 DFSZKFailoverController
9623 DataNode
10701 NodeManager
---
14353 Jps
9078 JournalNode
9639 DataNode
4830 QuorumPeerMain
10574 NodeManager
---
9616 DataNode
10547 NodeManager
14343 Jps
4808 QuorumPeerMain
9115 JournalNode
---
9826 DataNode
10758 NodeManager
4807 QuorumPeerMain
9255 JournalNode
14538 Jps登陆hdfs主namenode的UI：
WordCount演示
$ cd /data/hadoop/
$ ll LICENSE.txt
-rw-r--r-- 1 hadoop hadoop 106210 6月 18 09:26 LICENSE.txt
$ hadoop fs -mkdir /input
$ hadoop fs -put LICENSE.txt /input
$ hadoop jar share/hadoop/
common/ hdfs/ httpfs/ kms/ mapreduce/ tools/ yarn/ $ hadoop jar share/hadoop/mapreduce/hadoop-mapreduce-examples-2.10.0.jar wordcount /input /output
20/06/19 13:55:59 INFO client.ConfiguredRMFailoverProxyProvider: Failing over to rm2
20/06/19 13:56:00 INFO input.FileInputFormat: Total input files to process : 1
20/06/19 13:56:00 INFO mapreduce.JobSubmitter: number of splits:1
20/06/19 13:56:00 INFO Configuration.deprecation: yarn.resourcemanager.zk-address is deprecated. Instead, use hadoop.zk.address
20/06/19 13:56:00 INFO Configuration.deprecation: yarn.resourcemanager.system-metrics-publisher.enabled is deprecated. Instead, use yarn.system-metrics-publisher.enabled
20/06/19 13:56:00 INFO mapreduce.JobSubmitter: Submitting tokens for job: job_1592470438667_0007
20/06/19 13:56:00 INFO conf.Configuration: resource-types.xml not found
20/06/19 13:56:00 INFO resource.ResourceUtils: Unable to find 'resource-types.xml'.
20/06/19 13:56:00 INFO resource.ResourceUtils: Adding resource type - name = memory-mb, units = Mi, type = COUNTABLE
20/06/19 13:56:00 INFO resource.ResourceUtils: Adding resource type - name = vcores, units = , type = COUNTABLE
20/06/19 13:56:00 INFO impl.YarnClientImpl: Submitted application application_1592470438667_0007
20/06/19 13:56:01 INFO mapreduce.Job: The url to track the job: http://hadoop-test-2:8188/proxy/application_1592470438667_0007/
20/06/19 13:56:01 INFO mapreduce.Job: Running job: job_1592470438667_0007
20/06/19 13:56:08 INFO mapreduce.Job: Job job_1592470438667_0007 running in uber mode : false
20/06/19 13:56:08 INFO mapreduce.Job: map 0% reduce 0%
20/06/19 13:56:12 INFO mapreduce.Job: map 100% reduce 0%
20/06/19 13:56:17 INFO mapreduce.Job: map 100% reduce 100%
20/06/19 13:56:18 INFO mapreduce.Job: Job job_1592470438667_0007 completed successfully
20/06/19 13:56:18 INFO mapreduce.Job: Counters: 49
File System Counters
FILE: Number of bytes read=36735
FILE: Number of bytes written=496235
FILE: Number of read operations=0
FILE: Number of large read operations=0
FILE: Number of write operations=0
HDFS: Number of bytes read=106319
HDFS: Number of bytes written=27714
HDFS: Number of read operations=6
HDFS: Number of large read operations=0
HDFS: Number of write operations=2
Job Counters
Launched map tasks=1
Launched reduce tasks=1
Data-local map tasks=1
Total time spent by all maps in occupied slots (ms)=2442
Total time spent by all reduces in occupied slots (ms)=2678
Total time spent by all map tasks (ms)=2442
Total time spent by all reduce tasks (ms)=2678
Total vcore-milliseconds taken by all map tasks=2442
Total vcore-milliseconds taken by all reduce tasks=2678
Total megabyte-milliseconds taken by all map tasks=2500608
Total megabyte-milliseconds taken by all reduce tasks=2742272
Map-Reduce Framework
Map input records=1975
Map output records=15433
Map output bytes=166257
Map output materialized bytes=36735
Input split bytes=109
Combine input records=15433
Combine output records=2332
Reduce input groups=2332
Reduce shuffle bytes=36735
Reduce input records=2332
Reduce output records=2332
Spilled Records=4664
Shuffled Maps =1
Failed Shuffles=0
Merged Map outputs=1
GC time elapsed (ms)=140
CPU time spent (ms)=1740
Physical memory (bytes) snapshot=510885888
Virtual memory (bytes) snapshot=4263968768
Total committed heap usage (bytes)=330301440
Shuffle Errors
BAD_ID=0
CONNECTION=0
IO_ERROR=0
WRONG_LENGTH=0
WRONG_MAP=0
WRONG_REDUCE=0
File Input Format Counters
Bytes Read=106210
File Output Format Counters
Bytes Written=27714
$ hdfs dfs -ls /input
Found 1 items
-rw-r--r-- 3 hadoop supergroup 106210 2020-06-19 13:55 /input/LICENSE.txt
$ hdfs dfs -ls /output
Found 2 items
-rw-r--r-- 3 hadoop supergroup 0 2020-06-19 13:56 /output/_SUCCESS
-rw-r--r-- 3 hadoop supergroup 27714 2020-06-19 13:56 /output/part-r-00000