Hadoop基础入门以及Hadoop集群搭建

sqtsqt

[root@dbserver ~]# /home/hadoop/hadoop/bin/hdfs namenode -format　　
16/06/01 13:33:36 INFO namenode.NameNode: STARTUP_MSG:
　　
/************************************************************
　　
STARTUP_MSG: Starting NameNode
　　
STARTUP_MSG:   host = dbserver/10.0.0.4
　　
STARTUP_MSG:   args = [-format]
　　
STARTUP_MSG:   version = 2.6.0
　　
STARTUP_MSG:   classpath = /home/hadoop/hadoop/etc/hadoop:/home/hadoop/hadoop/share/hadoop/common/lib/jasper-runtime-5.5.23.jar:/home/hadoop/hadoop/share/hadoop/common/lib/gson-2.2.4.jar:/home/hadoop/hadoop/share/hadoop/common/lib/apacheds-kerberos-codec-2.0.0-M15.jar:/home/hadoop/hadoop/share/hadoop/common/lib/jackson-xc-1.9.13.jar:/home/hadoop/hadoop/share/hadoop/common/lib/log4j-1.2.17.jar:/home/hadoop/hadoop/share/hadoop/common/lib/commons-compress-1.4.1.jar:/home/hadoop/hadoop/share/hadoop/common/lib/api-util-1.0.0-M20.jar:/home/hadoop/hadoop/share/hadoop/common/lib/commons-lang-2.6.jar:/home/hadoop/hadoop/share/hadoop/common/lib/junit-4.11.jar:/home/hadoop/hadoop/share/hadoop/common/lib/commons-collections-3.2.1.jar:/home/hadoop/hadoop/share/hadoop/common/lib/protobuf-java-2.5.0.jar:/home/hadoop/hadoop/share/hadoop/common/lib/activation-1.1.jar:/home/hadoop/hadoop/share/hadoop/common/lib/apacheds-i18n-2.0.0-M15.jar:/home/hadoop/hadoop/share/hadoop/common/lib/commons-cli-1.2.jar:/home/hadoop/hadoop/share/hadoop/common/lib/commons-configuration-1.6.jar:/home/hadoop/hadoop/share/hadoop/common/lib/commons-math3-3.1.1.jar:/home/hadoop/hadoop/share/hadoop/common/lib/curator-client-2.6.0.jar:/home/hadoop/hadoop/share/hadoop/common/lib/jetty-6.1.26.jar:/home/hadoop/hadoop/share/hadoop/common/lib/httpcore-4.2.5.jar:/home/hadoop/hadoop/share/hadoop/common/lib/jettison-1.1.jar:/home/hadoop/hadoop/share/hadoop/common/lib/slf4j-log4j12-1.7.5.jar:/home/hadoop/hadoop/share/hadoop/common/lib/commons-digester-1.8.jar:/home/hadoop/hadoop/share/hadoop/common/lib/commons-logging-1.1.3.jar:/home/hadoop/hadoop/share/hadoop/common/lib/jersey-server-1.9.jar:/home/hadoop/hadoop/share/hadoop/common/lib/paranamer-2.3.jar:/home/hadoop/hadoop/share/hadoop/common/lib/avro-1.7.4.jar:/home/hadoop/hadoop/share/hadoop/common/lib/jersey-json-1.9.jar:/home/hadoop/hadoop/share/hadoop/common/lib/jackson-jaxrs-1.9.13.jar:/home/hadoop/hadoop/share/hadoop/common/lib/jackson-core-asl-1.9.13.jar:/home/hadoop/hadoop/share/hadoop/common/lib/httpclient-4.2.5.jar:/home/hadoop/hadoop/share/hadoop/common/lib/commons-httpclient-3.1.jar:/home/hadoop/hadoop/share/hadoop/common/lib/jets3t-0.9.0.jar:/home/hadoop/hadoop/share/hadoop/common/lib/curator-recipes-2.6.0.jar:/home/hadoop/hadoop/share/hadoop/common/lib/jackson-mapper-asl-1.9.13.jar:/home/hadoop/hadoop/share/hadoop/common/lib/xmlenc-0.52.jar:/home/hadoop/hadoop/share/hadoop/common/lib/asm-3.2.jar:/home/hadoop/hadoop/share/hadoop/common/lib/java-xmlbuilder-0.4.jar:/home/hadoop/hadoop/share/hadoop/common/lib/jsp-api-2.1.jar:/home/hadoop/hadoop/share/hadoop/common/lib/hadoop-annotations-2.6.0.jar:/home/hadoop/hadoop/share/hadoop/common/lib/snappy-java-1.0.4.1.jar:/home/hadoop/hadoop/share/hadoop/common/lib/commons-beanutils-core-1.8.0.jar:/home/hadoop/hadoop/share/hadoop/common/lib/jetty-util-6.1.26.jar:/home/hadoop/hadoop/share/hadoop/common/lib/commons-net-3.1.jar:/home/hadoop/hadoop/share/hadoop/common/lib/hadoop-auth-2.6.0.jar:/home/hadoop/hadoop/share/hadoop/common/lib/slf4j-api-1.7.5.jar:/home/hadoop/hadoop/share/hadoop/common/lib/jaxb-api-2.2.2.jar:/home/hadoop/hadoop/share/hadoop/common/lib/jsch-0.1.42.jar:/home/hadoop/hadoop/share/hadoop/common/lib/netty-3.6.2.Final.jar:/home/hadoop/hadoop/share/hadoop/common/lib/guava-11.0.2.jar:/home/hadoop/hadoop/share/hadoop/common/lib/servlet-api-2.5.jar:/home/hadoop/hadoop/share/hadoop/common/lib/commons-io-2.4.jar:/home/hadoop/hadoop/share/hadoop/common/lib/commons-beanutils-1.7.0.jar:/home/hadoop/hadoop/share/hadoop/common/lib/api-asn1-api-1.0.0-M20.jar:/home/hadoop/hadoop/share/hadoop/common/lib/curator-framework-2.6.0.jar:/home/hadoop/hadoop/share/hadoop/common/lib/jasper-compiler-5.5.23.jar:/home/hadoop/hadoop/share/hadoop/common/lib/hamcrest-core-1.3.jar:/home/hadoop/hadoop/share/hadoop/common/lib/zookeeper-3.4.6.jar:/home/hadoop/hadoop/share/hadoop/common/lib/xz-1.0.jar:/home/hadoop/hadoop/share/hadoop/common/lib/stax-api-1.0-2.jar:/home/hadoop/hadoop/share/hadoop/common/lib/mockito-all-1.8.5.jar:/home/hadoop/hadoop/share/hadoop/common/lib/jersey-core-1.9.jar:/home/hadoop/hadoop/share/hadoop/common/lib/commons-codec-1.4.jar:/home/hadoop/hadoop/share/hadoop/common/lib/htrace-core-3.0.4.jar:/home/hadoop/hadoop/share/hadoop/common/lib/jaxb-impl-2.2.3-1.jar:/home/hadoop/hadoop/share/hadoop/common/lib/jsr305-1.3.9.jar:/home/hadoop/hadoop/share/hadoop/common/lib/commons-el-1.0.jar:/home/hadoop/hadoop/share/hadoop/common/hadoop-nfs-2.6.0.jar:/home/hadoop/hadoop/share/hadoop/common/hadoop-common-2.6.0-tests.jar:/home/hadoop/hadoop/share/hadoop/common/hadoop-common-2.6.0.jar:/home/hadoop/hadoop/share/hadoop/hdfs:/home/hadoop/hadoop/share/hadoop/hdfs/lib/jasper-runtime-5.5.23.jar:/home/hadoop/hadoop/share/hadoop/hdfs/lib/log4j-1.2.17.jar:/home/hadoop/hadoop/share/hadoop/hdfs/lib/commons-lang-2.6.jar:/home/hadoop/hadoop/share/hadoop/hdfs/lib/protobuf-java-2.5.0.jar:/home/hadoop/hadoop/share/hadoop/hdfs/lib/commons-cli-1.2.jar:/home/hadoop/hadoop/share/hadoop/hdfs/lib/jetty-6.1.26.jar:/home/hadoop/hadoop/share/hadoop/hdfs/lib/commons-logging-1.1.3.jar:/home/hadoop/hadoop/share/hadoop/hdfs/lib/jersey-server-1.9.jar:/home/hadoop/hadoop/share/hadoop/hdfs/lib/xml-apis-1.3.04.jar:/home/hadoop/hadoop/share/hadoop/hdfs/lib/jackson-core-asl-1.9.13.jar:/home/hadoop/hadoop/share/hadoop/hdfs/lib/jackson-mapper-asl-1.9.13.jar:/home/hadoop/hadoop/share/hadoop/hdfs/lib/xmlenc-0.52.jar:/home/hadoop/hadoop/share/hadoop/hdfs/lib/asm-3.2.jar:/home/hadoop/hadoop/share/hadoop/hdfs/lib/jsp-api-2.1.jar:/home/hadoop/hadoop/share/hadoop/hdfs/lib/xercesImpl-2.9.1.jar:/home/hadoop/hadoop/share/hadoop/hdfs/lib/jetty-util-6.1.26.jar:/home/hadoop/hadoop/share/hadoop/hdfs/lib/commons-daemon-1.0.13.jar:/home/hadoop/hadoop/share/hadoop/hdfs/lib/netty-3.6.2.Final.jar:/home/hadoop/hadoop/share/hadoop/hdfs/lib/guava-11.0.2.jar:/home/hadoop/hadoop/share/hadoop/hdfs/lib/servlet-api-2.5.jar:/home/hadoop/hadoop/share/hadoop/hdfs/lib/commons-io-2.4.jar:/home/hadoop/hadoop/share/hadoop/hdfs/lib/jersey-core-1.9.jar:/home/hadoop/hadoop/share/hadoop/hdfs/lib/commons-codec-1.4.jar:/home/hadoop/hadoop/share/hadoop/hdfs/lib/htrace-core-3.0.4.jar:/home/hadoop/hadoop/share/hadoop/hdfs/lib/jsr305-1.3.9.jar:/home/hadoop/hadoop/share/hadoop/hdfs/lib/commons-el-1.0.jar:/home/hadoop/hadoop/share/hadoop/hdfs/hadoop-hdfs-2.6.0.jar:/home/hadoop/hadoop/share/hadoop/hdfs/hadoop-hdfs-nfs-2.6.0.jar:/home/hadoop/hadoop/share/hadoop/hdfs/hadoop-hdfs-2.6.0-tests.jar:/home/hadoop/hadoop/share/hadoop/yarn/lib/guice-servlet-3.0.jar:/home/hadoop/hadoop/share/hadoop/yarn/lib/jackson-xc-1.9.13.jar:/home/hadoop/hadoop/share/hadoop/yarn/lib/log4j-1.2.17.jar:/home/hadoop/hadoop/share/hadoop/yarn/lib/commons-compress-1.4.1.jar:/home/hadoop/hadoop/share/hadoop/yarn/lib/commons-lang-2.6.jar:/home/hadoop/hadoop/share/hadoop/yarn/lib/commons-collections-3.2.1.jar:/home/hadoop/hadoop/share/hadoop/yarn/lib/protobuf-java-2.5.0.jar:/home/hadoop/hadoop/share/hadoop/yarn/lib/activation-1.1.jar:/home/hadoop/hadoop/share/hadoop/yarn/lib/commons-cli-1.2.jar:/home/hadoop/hadoop/share/hadoop/yarn/lib/leveldbjni-all-1.8.jar:/home/hadoop/hadoop/share/hadoop/yarn/lib/jetty-6.1.26.jar:/home/hadoop/hadoop/share/hadoop/yarn/lib/jettison-1.1.jar:/home/hadoop/hadoop/share/hadoop/yarn/lib/commons-logging-1.1.3.jar:/home/hadoop/hadoop/share/hadoop/yarn/lib/jersey-server-1.9.jar:/home/hadoop/hadoop/share/hadoop/yarn/lib/jersey-guice-1.9.jar:/home/hadoop/hadoop/share/hadoop/yarn/lib/jersey-json-1.9.jar:/home/hadoop/hadoop/share/hadoop/yarn/lib/jackson-jaxrs-1.9.13.jar:/home/hadoop/hadoop/share/hadoop/yarn/lib/jackson-core-asl-1.9.13.jar:/home/hadoop/hadoop/share/hadoop/yarn/lib/commons-httpclient-3.1.jar:/home/hadoop/hadoop/share/hadoop/yarn/lib/aopalliance-1.0.jar:/home/hadoop/hadoop/share/hadoop/yarn/lib/guice-3.0.jar:/home/hadoop/hadoop/share/hadoop/yarn/lib/jackson-mapper-asl-1.9.13.jar:/home/hadoop/hadoop/share/hadoop/yarn/lib/asm-3.2.jar:/home/hadoop/hadoop/share/hadoop/yarn/lib/jetty-util-6.1.26.jar:/home/hadoop/hadoop/share/hadoop/yarn/lib/javax.inject-1.jar:/home/hadoop/hadoop/share/hadoop/yarn/lib/jaxb-api-2.2.2.jar:/home/hadoop/hadoop/share/hadoop/yarn/lib/jline-0.9.94.jar:/home/hadoop/hadoop/share/hadoop/yarn/lib/netty-3.6.2.Final.jar:/home/hadoop/hadoop/share/hadoop/yarn/lib/guava-11.0.2.jar:/home/hadoop/hadoop/share/hadoop/yarn/lib/servlet-api-2.5.jar:/home/hadoop/hadoop/share/hadoop/yarn/lib/commons-io-2.4.jar:/home/hadoop/hadoop/share/hadoop/yarn/lib/zookeeper-3.4.6.jar:/home/hadoop/hadoop/share/hadoop/yarn/lib/xz-1.0.jar:/home/hadoop/hadoop/share/hadoop/yarn/lib/stax-api-1.0-2.jar:/home/hadoop/hadoop/share/hadoop/yarn/lib/jersey-core-1.9.jar:/home/hadoop/hadoop/share/hadoop/yarn/lib/commons-codec-1.4.jar:/home/hadoop/hadoop/share/hadoop/yarn/lib/jaxb-impl-2.2.3-1.jar:/home/hadoop/hadoop/share/hadoop/yarn/lib/jersey-client-1.9.jar:/home/hadoop/hadoop/share/hadoop/yarn/lib/jsr305-1.3.9.jar:/home/hadoop/hadoop/share/hadoop/yarn/hadoop-yarn-server-common-2.6.0.jar:/home/hadoop/hadoop/share/hadoop/yarn/hadoop-yarn-server-tests-2.6.0.jar:/home/hadoop/hadoop/share/hadoop/yarn/hadoop-yarn-common-2.6.0.jar:/home/hadoop/hadoop/share/hadoop/yarn/hadoop-yarn-client-2.6.0.jar:/home/hadoop/hadoop/share/hadoop/yarn/hadoop-yarn-server-nodemanager-2.6.0.jar:/home/hadoop/hadoop/share/hadoop/yarn/hadoop-yarn-server-resourcemanager-2.6.0.jar:/home/hadoop/hadoop/share/hadoop/yarn/hadoop-yarn-api-2.6.0.jar:/home/hadoop/hadoop/share/hadoop/yarn/hadoop-yarn-applications-distributedshell-2.6.0.jar:/home/hadoop/hadoop/share/hadoop/yarn/hadoop-yarn-server-applicationhistoryservice-2.6.0.jar:/home/hadoop/hadoop/share/hadoop/yarn/hadoop-yarn-applications-unmanaged-am-launcher-2.6.0.jar:/home/hadoop/hadoop/share/hadoop/yarn/hadoop-yarn-registry-2.6.0.jar:/home/hadoop/hadoop/share/hadoop/yarn/hadoop-yarn-server-web-proxy-2.6.0.jar:/home/hadoop/hadoop/share/hadoop/mapreduce/lib/guice-servlet-3.0.jar:/home/hadoop/hadoop/share/hadoop/mapreduce/lib/log4j-1.2.17.jar:/home/hadoop/hadoop/share/hadoop/mapreduce/lib/commons-compress-1.4.1.jar:/home/hadoop/hadoop/share/hadoop/mapreduce/lib/junit-4.11.jar:/home/hadoop/hadoop/share/hadoop/mapreduce/lib/protobuf-java-2.5.0.jar:/home/hadoop/hadoop/share/hadoop/mapreduce/lib/leveldbjni-all-1.8.jar:/home/hadoop/hadoop/share/hadoop/mapreduce/lib/jersey-server-1.9.jar:/home/hadoop/hadoop/share/hadoop/mapreduce/lib/paranamer-2.3.jar:/home/hadoop/hadoop/share/hadoop/mapreduce/lib/jersey-guice-1.9.jar:/home/hadoop/hadoop/share/hadoop/mapreduce/lib/avro-1.7.4.jar:/home/hadoop/hadoop/share/hadoop/mapreduce/lib/jackson-core-asl-1.9.13.jar:/home/hadoop/hadoop/share/hadoop/mapreduce/lib/aopalliance-1.0.jar:/home/hadoop/hadoop/share/hadoop/mapreduce/lib/guice-3.0.jar:/home/hadoop/hadoop/share/hadoop/mapreduce/lib/jackson-mapper-asl-1.9.13.jar:/home/hadoop/hadoop/share/hadoop/mapreduce/lib/asm-3.2.jar:/home/hadoop/hadoop/share/hadoop/mapreduce/lib/hadoop-annotations-2.6.0.jar:/home/hadoop/hadoop/share/hadoop/mapreduce/lib/snappy-java-1.0.4.1.jar:/home/hadoop/hadoop/share/hadoop/mapreduce/lib/javax.inject-1.jar:/home/hadoop/hadoop/share/hadoop/mapreduce/lib/netty-3.6.2.Final.jar:/home/hadoop/hadoop/share/hadoop/mapreduce/lib/commons-io-2.4.jar:/home/hadoop/hadoop/share/hadoop/mapreduce/lib/hamcrest-core-1.3.jar:/home/hadoop/hadoop/share/hadoop/mapreduce/lib/xz-1.0.jar:/home/hadoop/hadoop/share/hadoop/mapreduce/lib/jersey-core-1.9.jar:/home/hadoop/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-jobclient-2.6.0-tests.jar:/home/hadoop/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-common-2.6.0.jar:/home/hadoop/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-hs-2.6.0.jar:/home/hadoop/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-core-2.6.0.jar:/home/hadoop/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-hs-plugins-2.6.0.jar:/home/hadoop/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-shuffle-2.6.0.jar:/home/hadoop/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-examples-2.6.0.jar:/home/hadoop/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-app-2.6.0.jar:/home/hadoop/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-jobclient-2.6.0.jar:/contrib/capacity-scheduler/*.jar
　　
STARTUP_MSG:   build = https://git-wip-us.apache.org/repos/asf/hadoop.git -r e3496499ecb8d220fba99dc5ed4c99c8f9e33bb1; compiled by 'jenkins' on 2014-11-13T21:10Z
　　
STARTUP_MSG:   java = 1.8.0_60
　　
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16/06/01 13:33:36 INFO namenode.NameNode: registered UNIX signal handlers for [TERM, HUP, INT]
　　
16/06/01 13:33:36 INFO namenode.NameNode: createNameNode [-format]
　　
16/06/01 13:33:36 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
　　
Formatting using clusterid: CID-06b119b1-d2d3-40f1-a04e-69e3a4e13526
　　
16/06/01 13:33:36 INFO namenode.FSNamesystem: No KeyProvider found.
　　
16/06/01 13:33:36 INFO namenode.FSNamesystem: fsLock is fair:true
　　
16/06/01 13:33:36 INFO blockmanagement.DatanodeManager: dfs.block.invalidate.limit=1000
　　
16/06/01 13:33:36 INFO blockmanagement.DatanodeManager: dfs.namenode.datanode.registration.ip-hostname-check=true
　　
16/06/01 13:33:36 INFO blockmanagement.BlockManager: dfs.namenode.startup.delay.block.deletion.sec is set to 000:00:00:00.000
　　
16/06/01 13:33:36 INFO blockmanagement.BlockManager: The block deletion will start around 2016 Jun 01 13:33:36
　　
16/06/01 13:33:36 INFO util.GSet: Computing capacity for map BlocksMap
　　
16/06/01 13:33:36 INFO util.GSet: VM type       = 64-bit
　　
16/06/01 13:33:36 INFO util.GSet: 2.0% max memory 966.7 MB = 19.3 MB
　　
16/06/01 13:33:36 INFO util.GSet: capacity      = 2^21 = 2097152 entries
　　
16/06/01 13:33:36 INFO blockmanagement.BlockManager: dfs.block.access.token.enable=false
　　
16/06/01 13:33:36 INFO blockmanagement.BlockManager: defaultReplication         = 2
　　
16/06/01 13:33:36 INFO blockmanagement.BlockManager: maxReplication             = 512
　　
16/06/01 13:33:36 INFO blockmanagement.BlockManager: minReplication             = 1
　　
16/06/01 13:33:36 INFO blockmanagement.BlockManager: maxReplicationStreams      = 2
　　
16/06/01 13:33:36 INFO blockmanagement.BlockManager: shouldCheckForEnoughRacks  = false
　　
16/06/01 13:33:36 INFO blockmanagement.BlockManager: replicationRecheckInterval = 3000
　　
16/06/01 13:33:36 INFO blockmanagement.BlockManager: encryptDataTransfer        = false
　　
16/06/01 13:33:36 INFO blockmanagement.BlockManager: maxNumBlocksToLog          = 1000
　　
16/06/01 13:33:36 INFO namenode.FSNamesystem: fsOwner             = root (auth:SIMPLE)
　　
16/06/01 13:33:36 INFO namenode.FSNamesystem: supergroup          = supergroup
　　
16/06/01 13:33:36 INFO namenode.FSNamesystem: isPermissionEnabled = false
　　
16/06/01 13:33:36 INFO namenode.FSNamesystem: HA Enabled: false
　　
16/06/01 13:33:36 INFO namenode.FSNamesystem: Append Enabled: true
　　
16/06/01 13:33:37 INFO util.GSet: Computing capacity for map INodeMap
　　
16/06/01 13:33:37 INFO util.GSet: VM type       = 64-bit
　　
16/06/01 13:33:37 INFO util.GSet: 1.0% max memory 966.7 MB = 9.7 MB
　　
16/06/01 13:33:37 INFO util.GSet: capacity      = 2^20 = 1048576 entries
　　
16/06/01 13:33:37 INFO namenode.NameNode: Caching file names occuring more than 10 times
　　
16/06/01 13:33:37 INFO util.GSet: Computing capacity for map cachedBlocks
　　
16/06/01 13:33:37 INFO util.GSet: VM type       = 64-bit
　　
16/06/01 13:33:37 INFO util.GSet: 0.25% max memory 966.7 MB = 2.4 MB
　　
16/06/01 13:33:37 INFO util.GSet: capacity      = 2^18 = 262144 entries
　　
16/06/01 13:33:37 INFO namenode.FSNamesystem: dfs.namenode.safemode.threshold-pct = 0.9990000128746033
　　
16/06/01 13:33:37 INFO namenode.FSNamesystem: dfs.namenode.safemode.min.datanodes = 0
　　
16/06/01 13:33:37 INFO namenode.FSNamesystem: dfs.namenode.safemode.extension     = 30000
　　
16/06/01 13:33:37 INFO namenode.FSNamesystem: Retry cache on namenode is enabled
　　
16/06/01 13:33:37 INFO namenode.FSNamesystem: Retry cache will use 0.03 of total heap and retry cache entry expiry time is 600000 millis
　　
16/06/01 13:33:37 INFO util.GSet: Computing capacity for map NameNodeRetryCache
　　
16/06/01 13:33:37 INFO util.GSet: VM type       = 64-bit
　　
16/06/01 13:33:37 INFO util.GSet: 0.029999999329447746% max memory 966.7 MB = 297.0 KB
　　
16/06/01 13:33:37 INFO util.GSet: capacity      = 2^15 = 32768 entries
　　
16/06/01 13:33:37 INFO namenode.NNConf: ACLs enabled? false
　　
16/06/01 13:33:37 INFO namenode.NNConf: XAttrs enabled? true
　　
16/06/01 13:33:37 INFO namenode.NNConf: Maximum size of an xattr: 16384
　　
16/06/01 13:33:37 INFO namenode.FSImage: Allocated new BlockPoolId: BP-1092351684-10.0.0.4-1464759217255
　　
16/06/01 13:33:37 INFO common.Storage: Storage directory /home/hadoop/hadoop/dfs/name has been successfully formatted.
　　
16/06/01 13:33:37 INFO namenode.NNStorageRetentionManager: Going to retain 1 images with txid >= 0
　　
16/06/01 13:33:37 INFO util.ExitUtil: Exiting with status 0
　　
16/06/01 13:33:37 INFO namenode.NameNode: SHUTDOWN_MSG:
　　
/************************************************************
　　
SHUTDOWN_MSG: Shutting down NameNode at dbserver/10.0.0.4
　　
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