hadoop2.7.2搭建分布式环境,格式化后,namenode没启动成功

Question

第一步：执行hadoop namenode -formate

STARTUP_MSG: build = https://git-wip-us.apache.org/repos/asf/hadoop.git -r b165c4fe8a74265c792ce23f546c64604acf0e41; compiled by 'jenkins' on 2016-01-26T00:08Z
STARTUP_MSG: java = 1.7.0_76
************************************************************/
16/08/02 04:26:16 INFO namenode.NameNode: registered UNIX signal handlers for [TERM, HUP, INT]
16/08/02 04:26:16 INFO namenode.NameNode: createNameNode [-formate]
Usage: java NameNode [-backup] |
[-checkpoint] |
[-format [-clusterid cid ] [-force] [-nonInteractive] ] |
[-upgrade [-clusterid cid] [-renameReserved] ] |
[-upgradeOnly [-clusterid cid] [-renameReserved] ] |
[-rollback] |
[-rollingUpgrade ] |
[-finalize] |
[-importCheckpoint] |
[-initializeSharedEdits] |
[-bootstrapStandby] |
[-recover [ -force] ] |
[-metadataVersion ] ]

16/08/02 04:26:16 INFO namenode.NameNode: SHUTDOWN_MSG:
/************************************************************
SHUTDOWN_MSG: Shutting down NameNode at master/192.168.234.100

第二步：执行start-all.sh 结果如下：

[root@master sbin]# sh start-all.sh

This script is Deprecated. Instead use start-dfs.sh and start-yarn.sh
16/08/02 05:45:24 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
Starting namenodes on [master]
master: starting namenode, logging to /usr/hadoop/hadoop-2.7.2/logs/hadoop-root-namenode-master.out
slave2: starting datanode, logging to /usr/hadoop/hadoop-2.7.2/logs/hadoop-root-datanode-slave2.out
slave3: starting datanode, logging to /usr/hadoop/hadoop-2.7.2/logs/hadoop-root-datanode-slave3.out
slave1: starting datanode, logging to /usr/hadoop/hadoop-2.7.2/logs/hadoop-root-datanode-slave1.out
Starting secondary namenodes [master]
master: starting secondarynamenode, logging to /usr/hadoop/hadoop-2.7.2/logs/hadoop-root-secondarynamenode-master.out
16/08/02 05:46:01 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
starting yarn daemons
starting resourcemanager, logging to /usr/hadoop/hadoop-2.7.2/logs/yarn-root-resourcemanager-master.out
slave2: starting nodemanager, logging to /usr/hadoop/hadoop-2.7.2/logs/yarn-root-nodemanager-slave2.out
slave3: starting nodemanager, logging to /usr/hadoop/hadoop-2.7.2/logs/yarn-root-nodemanager-slave3.out
slave1: starting nodemanager, logging to /usr/hadoop/hadoop-2.7.2/logs/yarn-root-nodemanager-slave1.out
[root@master sbin]# jps
2613 ResourceManager
2467 SecondaryNameNode
2684 Jps

namenode日志：
2016-08-02 05:49:49,910 WARN org.apache.hadoop.hdfs.server.namenode.FSNamesystem: Encountered exception loading fsimage
java.io.IOException: NameNode is not formatted.
at org.apache.hadoop.hdfs.server.namenode.FSImage.recoverTransitionRead(FSImage.java:225)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.loadFSImage(FSNamesystem.java:975)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.loadFromDisk(FSNamesystem.java:681)
at org.apache.hadoop.hdfs.server.namenode.NameNode.loadNamesystem(NameNode.java:584)
at org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.java:644)
at org.apache.hadoop.hdfs.server.namenode.NameNode.(NameNode.java:811)
at org.apache.hadoop.hdfs.server.namenode.NameNode.(NameNode.java:795)
at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1488)
at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1554)
2016-08-02 05:49:49,928 INFO org.mortbay.log: Stopped HttpServer2$SelectChannelConnectorWithSafeStartup@0.0.0.0:50070
2016-08-02 05:49:49,928 WARN org.apache.hadoop.http.HttpServer2: HttpServer Acceptor: isRunning is false. Rechecking.
2016-08-02 05:49:49,930 WARN org.apache.hadoop.http.HttpServer2: HttpServer Acceptor: isRunning is false
2016-08-02 05:49:49,934 INFO org.apache.hadoop.metrics2.impl.MetricsSystemImpl: Stopping NameNode metrics system...
2016-08-02 05:49:49,935 INFO org.apache.hadoop.metrics2.impl.MetricsSystemImpl: NameNode metrics system stopped.
2016-08-02 05:49:49,935 INFO org.apache.hadoop.metrics2.impl.MetricsSystemImpl: NameNode metrics system shutdown complete.
2016-08-02 05:49:49,935 ERROR org.apache.hadoop.hdfs.server.namenode.NameNode: Failed to start namenode.
java.io.IOException: NameNode is not formatted.
at org.apache.hadoop.hdfs.server.namenode.FSImage.recoverTransitionRead(FSImage.java:225)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.loadFSImage(FSNamesystem.java:975)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.loadFromDisk(FSNamesystem.java:681)
at org.apache.hadoop.hdfs.server.namenode.NameNode.loadNamesystem(NameNode.java:584)
at org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.java:644)
at org.apache.hadoop.hdfs.server.namenode.NameNode.(NameNode.java:811)
at org.apache.hadoop.hdfs.server.namenode.NameNode.(NameNode.java:795)
at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1488)
at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1554)
2016-08-02 05:49:49,949 INFO org.apache.hadoop.util.ExitUtil: Exiting with status 1
2016-08-02 05:49:49,961 INFO org.apache.hadoop.hdfs.server.namenode.NameNode: SHUTDOWN_MSG:
/************************************************************
SHUTDOWN_MSG: Shutting down NameNode at master/192.168.234.100

Answer 1

core-site.xml 配置如下：


fs.defaultFS
hdfs://master:9000

<property>

    <name>hadoop.tmp.dir</name>

    <value>/usr/hadoop/hadoop-2.7.2/tmp</value>

</property>