Hadoop单机安装

DogJay 2019-02-08 后端技术 94人已围观

CentOS7.5安装Hadoop2.7.7(单机版)

配置Java环境变量: vi /etc/profile

#set java environment
JAVA_HOME=/usr/java/jdk1.8.0_191-amd64
CLASSPATH=.:$JAVA_HOME/lib.tools.jar
PATH=$JAVA_HOME/bin:$PATH
export JAVA_HOME CLASSPATH PATH

解压Hadoop二进制文件:

tar -zxvf hadoop-2.7.7.tar.gz 

配置Hadoop环境变量:vi /etc/profile

export HADOOP_HOME=/usr/hadoop-2.7.7
export PATH=$PATH:$HADOOP_HOME/bin

编辑 core-site.xml 配置文件



    
        fs.defaultFS
        hdfs://localhost:9000
    
    
    
        hadoop.tmp.dir
        /usr/hadoop-2.7.7/tmp
    

编辑 hdfs-site.xml  文件




        dfs.name.dir
        /usr/hadoop-2.7.7/hdfs/name
        namenode上存储hdfs名字空间元数据 
    

    
        dfs.data.dir
        /usr/hadoop-2.7.7/data
        datanode上数据块的物理存储位置
    


    
    
        dfs.replication
        1
    

第一次启动hdfs需要格式化,之后启动就不需要的:

[root@VM_0_15_centos hadoop-2.7.7]# ./bin/hdfs namenode -format
19/02/08 22:21:44 INFO namenode.NameNode: STARTUP_MSG: 
/************************************************************
STARTUP_MSG: Starting NameNode
STARTUP_MSG:   host = VM_0_15_centos/127.0.0.1
STARTUP_MSG:   args = [-format]
STARTUP_MSG:   version = 2.7.7
STARTUP_MSG:   classpath = /usr/hadoop-2.7.7/etc/hadoop:/usr/hadoop-2.7.7/share/hadoop/common/lib/log4j-1.2.17.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/jets3t-0.9.0.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/protobuf-java-2.5.0.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/snappy-java-1.0.4.1.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/hamcrest-core-1.3.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/zookeeper-3.4.6.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/netty-3.6.2.Final.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/jettison-1.1.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/jaxb-impl-2.2.3-1.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/activation-1.1.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/commons-beanutils-1.7.0.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/commons-configuration-1.6.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/commons-httpclient-3.1.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/commons-logging-1.1.3.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/apacheds-kerberos-codec-2.0.0-M15.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/stax-api-1.0-2.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/jackson-xc-1.9.13.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/curator-framework-2.7.1.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/commons-collections-3.2.2.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/mockito-all-1.8.5.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/jetty-sslengine-6.1.26.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/xmlenc-0.52.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/jsch-0.1.54.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/htrace-core-3.1.0-incubating.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/commons-math3-3.1.1.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/xz-1.0.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/java-xmlbuilder-0.4.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/slf4j-log4j12-1.7.10.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/slf4j-api-1.7.10.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/gson-2.2.4.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/jetty-util-6.1.26.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/api-asn1-api-1.0.0-M20.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/commons-beanutils-core-1.8.0.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/curator-client-2.7.1.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/jsr305-3.0.0.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/avro-1.7.4.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/paranamer-2.3.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/commons-net-3.1.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/jersey-core-1.9.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/guava-11.0.2.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/jaxb-api-2.2.2.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/commons-io-2.4.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/commons-cli-1.2.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/jsp-api-2.1.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/jetty-6.1.26.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/httpclient-4.2.5.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/apacheds-i18n-2.0.0-M15.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/api-util-1.0.0-M20.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/jackson-mapper-asl-1.9.13.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/junit-4.11.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/curator-recipes-2.7.1.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/commons-codec-1.4.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/commons-lang-2.6.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/commons-digester-1.8.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/jackson-jaxrs-1.9.13.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/commons-compress-1.4.1.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/jackson-core-asl-1.9.13.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/asm-3.2.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/httpcore-4.2.5.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/hadoop-annotations-2.7.7.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/jersey-server-1.9.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/jersey-json-1.9.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/servlet-api-2.5.jar:/usr/hadoop-2.7.7/share/hadoop/common/lib/hadoop-auth-2.7.7.jar:/usr/hadoop-2.7.7/share/hadoop/common/hadoop-common-2.7.7-tests.jar:/usr/hadoop-2.7.7/share/hadoop/common/hadoop-nfs-2.7.7.jar:/usr/hadoop-2.7.7/share/hadoop/common/hadoop-common-2.7.7.jar:/usr/hadoop-2.7.7/share/hadoop/hdfs:/usr/hadoop-2.7.7/share/hadoop/hdfs/lib/log4j-1.2.17.jar:/usr/hadoop-2.7.7/share/hadoop/hdfs/lib/protobuf-java-2.5.0.jar:/usr/hadoop-2.7.7/share/hadoop/hdfs/lib/netty-3.6.2.Final.jar:/usr/hadoop-2.7.7/share/hadoop/hdfs/lib/commons-logging-1.1.3.jar:/usr/hadoop-2.7.7/share/hadoop/hdfs/lib/xmlenc-0.52.jar:/usr/hadoop-2.7.7/share/hadoop/hdfs/lib/commons-daemon-1.0.13.jar:/usr/hadoop-2.7.7/share/hadoop/hdfs/lib/htrace-core-3.1.0-incubating.jar:/usr/hadoop-2.7.7/share/hadoop/hdfs/lib/jetty-util-6.1.26.jar:/usr/hadoop-2.7.7/share/hadoop/hdfs/lib/netty-all-4.0.23.Final.jar:/usr/hadoop-2.7.7/share/hadoop/hdfs/lib/jsr305-3.0.0.jar:/usr/hadoop-2.7.7/share/hadoop/hdfs/lib/xml-apis-1.3.04.jar:/usr/hadoop-2.7.7/share/hadoop/hdfs/lib/jersey-core-1.9.jar:/usr/hadoop-2.7.7/share/hadoop/hdfs/lib/guava-11.0.2.jar:/usr/hadoop-2.7.7/share/hadoop/hdfs/lib/commons-io-2.4.jar:/usr/hadoop-2.7.7/share/hadoop/hdfs/lib/commons-cli-1.2.jar:/usr/hadoop-2.7.7/share/hadoop/hdfs/lib/leveldbjni-all-1.8.jar:/usr/hadoop-2.7.7/share/hadoop/hdfs/lib/jetty-6.1.26.jar:/usr/hadoop-2.7.7/share/hadoop/hdfs/lib/xercesImpl-2.9.1.jar:/usr/hadoop-2.7.7/share/hadoop/hdfs/lib/jackson-mapper-asl-1.9.13.jar:/usr/hadoop-2.7.7/share/hadoop/hdfs/lib/commons-codec-1.4.jar:/usr/hadoop-2.7.7/share/hadoop/hdfs/lib/commons-lang-2.6.jar:/usr/hadoop-2.7.7/share/hadoop/hdfs/lib/jackson-core-asl-1.9.13.jar:/usr/hadoop-2.7.7/share/hadoop/hdfs/lib/asm-3.2.jar:/usr/hadoop-2.7.7/share/hadoop/hdfs/lib/jersey-server-1.9.jar:/usr/hadoop-2.7.7/share/hadoop/hdfs/lib/servlet-api-2.5.jar:/usr/hadoop-2.7.7/share/hadoop/hdfs/hadoop-hdfs-2.7.7-tests.jar:/usr/hadoop-2.7.7/share/hadoop/hdfs/hadoop-hdfs-2.7.7.jar:/usr/hadoop-2.7.7/share/hadoop/hdfs/hadoop-hdfs-nfs-2.7.7.jar:/usr/hadoop-2.7.7/share/hadoop/yarn/lib/guice-servlet-3.0.jar:/usr/hadoop-2.7.7/share/hadoop/yarn/lib/log4j-1.2.17.jar:/usr/hadoop-2.7.7/share/hadoop/yarn/lib/protobuf-java-2.5.0.jar:/usr/hadoop-2.7.7/share/hadoop/yarn/lib/javax.inject-1.jar:/usr/hadoop-2.7.7/share/hadoop/yarn/lib/guice-3.0.jar:/usr/hadoop-2.7.7/share/hadoop/yarn/lib/zookeeper-3.4.6.jar:/usr/hadoop-2.7.7/share/hadoop/yarn/lib/netty-3.6.2.Final.jar:/usr/hadoop-2.7.7/share/hadoop/yarn/lib/jettison-1.1.jar:/usr/hadoop-2.7.7/share/hadoop/yarn/lib/jaxb-impl-2.2.3-1.jar:/usr/hadoop-2.7.7/share/hadoop/yarn/lib/activation-1.1.jar:/usr/hadoop-2.7.7/share/hadoop/yarn/lib/commons-logging-1.1.3.jar:/usr/hadoop-2.7.7/share/hadoop/yarn/lib/stax-api-1.0-2.jar:/usr/hadoop-2.7.7/share/hadoop/yarn/lib/jackson-xc-1.9.13.jar:/usr/hadoop-2.7.7/share/hadoop/yarn/lib/commons-collections-3.2.2.jar:/usr/hadoop-2.7.7/share/hadoop/yarn/lib/xz-1.0.jar:/usr/hadoop-2.7.7/share/hadoop/yarn/lib/jetty-util-6.1.26.jar:/usr/hadoop-2.7.7/share/hadoop/yarn/lib/jsr305-3.0.0.jar:/usr/hadoop-2.7.7/share/hadoop/yarn/lib/jersey-core-1.9.jar:/usr/hadoop-2.7.7/share/hadoop/yarn/lib/guava-11.0.2.jar:/usr/hadoop-2.7.7/share/hadoop/yarn/lib/aopalliance-1.0.jar:/usr/hadoop-2.7.7/share/hadoop/yarn/lib/jersey-guice-1.9.jar:/usr/hadoop-2.7.7/share/hadoop/yarn/lib/jaxb-api-2.2.2.jar:/usr/hadoop-2.7.7/share/hadoop/yarn/lib/commons-io-2.4.jar:/usr/hadoop-2.7.7/share/hadoop/yarn/lib/commons-cli-1.2.jar:/usr/hadoop-2.7.7/share/hadoop/yarn/lib/leveldbjni-all-1.8.jar:/usr/hadoop-2.7.7/share/hadoop/yarn/lib/jetty-6.1.26.jar:/usr/hadoop-2.7.7/share/hadoop/yarn/lib/jackson-mapper-asl-1.9.13.jar:/usr/hadoop-2.7.7/share/hadoop/yarn/lib/commons-codec-1.4.jar:/usr/hadoop-2.7.7/share/hadoop/yarn/lib/commons-lang-2.6.jar:/usr/hadoop-2.7.7/share/hadoop/yarn/lib/jackson-jaxrs-1.9.13.jar:/usr/hadoop-2.7.7/share/hadoop/yarn/lib/zookeeper-3.4.6-tests.jar:/usr/hadoop-2.7.7/share/hadoop/yarn/lib/commons-compress-1.4.1.jar:/usr/hadoop-2.7.7/share/hadoop/yarn/lib/jackson-core-asl-1.9.13.jar:/usr/hadoop-2.7.7/share/hadoop/yarn/lib/asm-3.2.jar:/usr/hadoop-2.7.7/share/hadoop/yarn/lib/jersey-client-1.9.jar:/usr/hadoop-2.7.7/share/hadoop/yarn/lib/jersey-server-1.9.jar:/usr/hadoop-2.7.7/share/hadoop/yarn/lib/jersey-json-1.9.jar:/usr/hadoop-2.7.7/share/hadoop/yarn/lib/servlet-api-2.5.jar:/usr/hadoop-2.7.7/share/hadoop/yarn/hadoop-yarn-api-2.7.7.jar:/usr/hadoop-2.7.7/share/hadoop/yarn/hadoop-yarn-server-sharedcachemanager-2.7.7.jar:/usr/hadoop-2.7.7/share/hadoop/yarn/hadoop-yarn-common-2.7.7.jar:/usr/hadoop-2.7.7/share/hadoop/yarn/hadoop-yarn-server-common-2.7.7.jar:/usr/hadoop-2.7.7/share/hadoop/yarn/hadoop-yarn-server-web-proxy-2.7.7.jar:/usr/hadoop-2.7.7/share/hadoop/yarn/hadoop-yarn-server-nodemanager-2.7.7.jar:/usr/hadoop-2.7.7/share/hadoop/yarn/hadoop-yarn-server-tests-2.7.7.jar:/usr/hadoop-2.7.7/share/hadoop/yarn/hadoop-yarn-applications-unmanaged-am-launcher-2.7.7.jar:/usr/hadoop-2.7.7/share/hadoop/yarn/hadoop-yarn-client-2.7.7.jar:/usr/hadoop-2.7.7/share/hadoop/yarn/hadoop-yarn-server-resourcemanager-2.7.7.jar:/usr/hadoop-2.7.7/share/hadoop/yarn/hadoop-yarn-server-applicationhistoryservice-2.7.7.jar:/usr/hadoop-2.7.7/share/hadoop/yarn/hadoop-yarn-registry-2.7.7.jar:/usr/hadoop-2.7.7/share/hadoop/yarn/hadoop-yarn-applications-distributedshell-2.7.7.jar:/usr/hadoop-2.7.7/share/hadoop/mapreduce/lib/guice-servlet-3.0.jar:/usr/hadoop-2.7.7/share/hadoop/mapreduce/lib/log4j-1.2.17.jar:/usr/hadoop-2.7.7/share/hadoop/mapreduce/lib/protobuf-java-2.5.0.jar:/usr/hadoop-2.7.7/share/hadoop/mapreduce/lib/javax.inject-1.jar:/usr/hadoop-2.7.7/share/hadoop/mapreduce/lib/snappy-java-1.0.4.1.jar:/usr/hadoop-2.7.7/share/hadoop/mapreduce/lib/hamcrest-core-1.3.jar:/usr/hadoop-2.7.7/share/hadoop/mapreduce/lib/guice-3.0.jar:/usr/hadoop-2.7.7/share/hadoop/mapreduce/lib/netty-3.6.2.Final.jar:/usr/hadoop-2.7.7/share/hadoop/mapreduce/lib/xz-1.0.jar:/usr/hadoop-2.7.7/share/hadoop/mapreduce/lib/avro-1.7.4.jar:/usr/hadoop-2.7.7/share/hadoop/mapreduce/lib/paranamer-2.3.jar:/usr/hadoop-2.7.7/share/hadoop/mapreduce/lib/jersey-core-1.9.jar:/usr/hadoop-2.7.7/share/hadoop/mapreduce/lib/aopalliance-1.0.jar:/usr/hadoop-2.7.7/share/hadoop/mapreduce/lib/jersey-guice-1.9.jar:/usr/hadoop-2.7.7/share/hadoop/mapreduce/lib/commons-io-2.4.jar:/usr/hadoop-2.7.7/share/hadoop/mapreduce/lib/leveldbjni-all-1.8.jar:/usr/hadoop-2.7.7/share/hadoop/mapreduce/lib/jackson-mapper-asl-1.9.13.jar:/usr/hadoop-2.7.7/share/hadoop/mapreduce/lib/junit-4.11.jar:/usr/hadoop-2.7.7/share/hadoop/mapreduce/lib/commons-compress-1.4.1.jar:/usr/hadoop-2.7.7/share/hadoop/mapreduce/lib/jackson-core-asl-1.9.13.jar:/usr/hadoop-2.7.7/share/hadoop/mapreduce/lib/asm-3.2.jar:/usr/hadoop-2.7.7/share/hadoop/mapreduce/lib/hadoop-annotations-2.7.7.jar:/usr/hadoop-2.7.7/share/hadoop/mapreduce/lib/jersey-server-1.9.jar:/usr/hadoop-2.7.7/share/hadoop/mapreduce/hadoop-mapreduce-client-hs-plugins-2.7.7.jar:/usr/hadoop-2.7.7/share/hadoop/mapreduce/hadoop-mapreduce-client-app-2.7.7.jar:/usr/hadoop-2.7.7/share/hadoop/mapreduce/hadoop-mapreduce-client-jobclient-2.7.7-tests.jar:/usr/hadoop-2.7.7/share/hadoop/mapreduce/hadoop-mapreduce-client-shuffle-2.7.7.jar:/usr/hadoop-2.7.7/share/hadoop/mapreduce/hadoop-mapreduce-client-hs-2.7.7.jar:/usr/hadoop-2.7.7/share/hadoop/mapreduce/hadoop-mapreduce-client-common-2.7.7.jar:/usr/hadoop-2.7.7/share/hadoop/mapreduce/hadoop-mapreduce-client-jobclient-2.7.7.jar:/usr/hadoop-2.7.7/share/hadoop/mapreduce/hadoop-mapreduce-client-core-2.7.7.jar:/usr/hadoop-2.7.7/share/hadoop/mapreduce/hadoop-mapreduce-examples-2.7.7.jar:/usr/hadoop-2.7.7/contrib/capacity-scheduler/*.jar
STARTUP_MSG:   build = Unknown -r c1aad84bd27cd79c3d1a7dd58202a8c3ee1ed3ac; compiled by 'stevel' on 2018-07-18T22:47Z
STARTUP_MSG:   java = 1.8.0_191
************************************************************/
19/02/08 22:21:44 INFO namenode.NameNode: registered UNIX signal handlers for [TERM, HUP, INT]
19/02/08 22:21:44 INFO namenode.NameNode: createNameNode [-format]
19/02/08 22:21:45 WARN common.Util: Path /usr/hadoop-2.7.7/hdfs/name should be specified as a URI in configuration files. Please update hdfs configuration.
19/02/08 22:21:45 WARN common.Util: Path /usr/hadoop-2.7.7/hdfs/name should be specified as a URI in configuration files. Please update hdfs configuration.
Formatting using clusterid: CID-45f3c289-e161-4d71-95cd-c3c95d39bd4d
19/02/08 22:21:45 INFO namenode.FSNamesystem: No KeyProvider found.
19/02/08 22:21:45 INFO namenode.FSNamesystem: fsLock is fair: true
19/02/08 22:21:45 INFO namenode.FSNamesystem: Detailed lock hold time metrics enabled: false
19/02/08 22:21:45 INFO blockmanagement.DatanodeManager: dfs.block.invalidate.limit=1000
19/02/08 22:21:45 INFO blockmanagement.DatanodeManager: dfs.namenode.datanode.registration.ip-hostname-check=true
19/02/08 22:21:45 INFO blockmanagement.BlockManager: dfs.namenode.startup.delay.block.deletion.sec is set to 000:00:00:00.000
19/02/08 22:21:45 INFO blockmanagement.BlockManager: The block deletion will start around 2019 Feb 08 22:21:45
19/02/08 22:21:45 INFO util.GSet: Computing capacity for map BlocksMap
19/02/08 22:21:45 INFO util.GSet: VM type       = 64-bit
19/02/08 22:21:45 INFO util.GSet: 2.0% max memory 966.7 MB = 19.3 MB
19/02/08 22:21:45 INFO util.GSet: capacity      = 2^21 = 2097152 entries
19/02/08 22:21:45 INFO blockmanagement.BlockManager: dfs.block.access.token.enable=false
19/02/08 22:21:45 INFO blockmanagement.BlockManager: defaultReplication         = 1
19/02/08 22:21:45 INFO blockmanagement.BlockManager: maxReplication             = 512
19/02/08 22:21:45 INFO blockmanagement.BlockManager: minReplication             = 1
19/02/08 22:21:45 INFO blockmanagement.BlockManager: maxReplicationStreams      = 2
19/02/08 22:21:45 INFO blockmanagement.BlockManager: replicationRecheckInterval = 3000
19/02/08 22:21:45 INFO blockmanagement.BlockManager: encryptDataTransfer        = false
19/02/08 22:21:45 INFO blockmanagement.BlockManager: maxNumBlocksToLog          = 1000
19/02/08 22:21:45 INFO namenode.FSNamesystem: fsOwner             = root (auth:SIMPLE)
19/02/08 22:21:45 INFO namenode.FSNamesystem: supergroup          = supergroup
19/02/08 22:21:45 INFO namenode.FSNamesystem: isPermissionEnabled = true
19/02/08 22:21:45 INFO namenode.FSNamesystem: HA Enabled: false
19/02/08 22:21:45 INFO namenode.FSNamesystem: Append Enabled: true
19/02/08 22:21:45 INFO util.GSet: Computing capacity for map INodeMap
19/02/08 22:21:45 INFO util.GSet: VM type       = 64-bit
19/02/08 22:21:45 INFO util.GSet: 1.0% max memory 966.7 MB = 9.7 MB
19/02/08 22:21:45 INFO util.GSet: capacity      = 2^20 = 1048576 entries
19/02/08 22:21:45 INFO namenode.FSDirectory: ACLs enabled? false
19/02/08 22:21:45 INFO namenode.FSDirectory: XAttrs enabled? true
19/02/08 22:21:45 INFO namenode.FSDirectory: Maximum size of an xattr: 16384
19/02/08 22:21:45 INFO namenode.NameNode: Caching file names occuring more than 10 times
19/02/08 22:21:45 INFO util.GSet: Computing capacity for map cachedBlocks
19/02/08 22:21:45 INFO util.GSet: VM type       = 64-bit
19/02/08 22:21:45 INFO util.GSet: 0.25% max memory 966.7 MB = 2.4 MB
19/02/08 22:21:45 INFO util.GSet: capacity      = 2^18 = 262144 entries
19/02/08 22:21:45 INFO namenode.FSNamesystem: dfs.namenode.safemode.threshold-pct = 0.9990000128746033
19/02/08 22:21:45 INFO namenode.FSNamesystem: dfs.namenode.safemode.min.datanodes = 0
19/02/08 22:21:45 INFO namenode.FSNamesystem: dfs.namenode.safemode.extension     = 30000
19/02/08 22:21:45 INFO metrics.TopMetrics: NNTop conf: dfs.namenode.top.window.num.buckets = 10
19/02/08 22:21:45 INFO metrics.TopMetrics: NNTop conf: dfs.namenode.top.num.users = 10
19/02/08 22:21:45 INFO metrics.TopMetrics: NNTop conf: dfs.namenode.top.windows.minutes = 1,5,25
19/02/08 22:21:45 INFO namenode.FSNamesystem: Retry cache on namenode is enabled
19/02/08 22:21:45 INFO namenode.FSNamesystem: Retry cache will use 0.03 of total heap and retry cache entry expiry time is 600000 millis
19/02/08 22:21:45 INFO util.GSet: Computing capacity for map NameNodeRetryCache
19/02/08 22:21:45 INFO util.GSet: VM type       = 64-bit
19/02/08 22:21:45 INFO util.GSet: 0.029999999329447746% max memory 966.7 MB = 297.0 KB
19/02/08 22:21:45 INFO util.GSet: capacity      = 2^15 = 32768 entries
19/02/08 22:21:45 INFO namenode.FSImage: Allocated new BlockPoolId: BP-1471430781-127.0.0.1-1549635705908
19/02/08 22:21:46 INFO common.Storage: Storage directory /usr/hadoop-2.7.7/hdfs/name has been successfully formatted.
19/02/08 22:21:46 INFO namenode.FSImageFormatProtobuf: Saving image file /usr/hadoop-2.7.7/hdfs/name/current/fsimage.ckpt_0000000000000000000 using no compression
19/02/08 22:21:46 INFO namenode.FSImageFormatProtobuf: Image file /usr/hadoop-2.7.7/hdfs/name/current/fsimage.ckpt_0000000000000000000 of size 320 bytes saved in 0 seconds.
19/02/08 22:21:46 INFO namenode.NNStorageRetentionManager: Going to retain 1 images with txid >= 0
19/02/08 22:21:46 INFO util.ExitUtil: Exiting with status 0
19/02/08 22:21:46 INFO namenode.NameNode: SHUTDOWN_MSG: 
/************************************************************
SHUTDOWN_MSG: Shutting down NameNode at VM_0_15_centos/127.0.0.1
************************************************************/

配置ssh免密登录:

[root@VM_0_15_centos ~]# ssh-keygen -t dsa -P '' -f ~/.ssh/id_dsa
Generating public/private dsa key pair.
Your identification has been saved in /root/.ssh/id_dsa.
Your public key has been saved in /root/.ssh/id_dsa.pub.
The key fingerprint is:
8f:c7:e2:bc:29:9b:62:e3:63:08:28:8d:15:f7:46:01 root@VM_0_15_centos
The key's randomart image is:
+--[ DSA 1024]----+
|    E...         |
|  . . .          |
|   o o           |
|  .   o          |
|.+   .  S        |
|= .      +       |
|.. .    o +      |
|  . * .+ +       |
|   +.+oo=.       |
+-----------------+
[root@VM_0_15_centos ~]# cat ~/.ssh/id_dsa.pub >> ~/.ssh/authorized_keys
[root@VM_0_15_centos ~]# chmod 0600 ~/.ssh/authorized_keys

启动dfs

[root@VM_0_15_centos hadoop-2.7.7]# ./sbin/start-dfs.sh
Starting namenodes on [localhost]
localhost: starting namenode, logging to /usr/hadoop-2.7.7/logs/hadoop-root-namenode-VM_0_15_centos.out
localhost: starting datanode, logging to /usr/hadoop-2.7.7/logs/hadoop-root-datanode-VM_0_15_centos.out
Starting secondary namenodes [0.0.0.0]

打开浏览器,输入IP:port查看启动情况:

通过命令 mv mapred-site.xml.template mapred-site.xml 创建mapred-site.xml文件,并通过命令:vi mapred-site.xml编辑文件内容如下:



    
        mapreduce.framework.name
        yarn
    

通过命令:vi yarn-site.xml 修改yarn配置文件





    
        yarn.nodemanager.aux-services
        mapreduce_shuffle
    

通过命令./sbin/start-yarn.sh 启动yarn

[root@VM_0_15_centos hadoop-2.7.7]# ./sbin/start-yarn.sh 
starting yarn daemons
starting resourcemanager, logging to /usr/hadoop-2.7.7/logs/yarn-root-resourcemanager-VM_0_15_centos.out
localhost: starting nodemanager, logging to /usr/hadoop-2.7.7/logs/yarn-root-nodemanager-VM_0_15_centos.out

通过jps查看yarn是否启动:

[root@VM_0_15_centos hadoop-2.7.7]# jps
4994 NameNode
6019 NodeManager
5124 DataNode
6328 Jps
5291 SecondaryNameNode
5919 ResourceManager

打开浏览器查看yarn启动情况:

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