如何解决此Hadoop文件系统安装错误？

Question

我正在尝试在非Cloudera Ubuntu测试映像上安装Hadoop.在我跑步之前,一切似乎都进展顺利./bin/start-all.sh.名称节点永远不会出现,所以我甚hadoop fs -ls至无法运行连接到文件系统.

这是namenode日志:

2011-03-24 11:38:00,256 INFO org.apache.hadoop.ipc.Server: Stopping server on 54310
2011-03-24 11:38:00,257 ERROR org.apache.hadoop.hdfs.server.namenode.NameNode: org.apache.hadoop.hdfs.server.common.InconsistentFSStateException: Directory /usr/local/hadoop-datastore/hadoop-hadoop/dfs/name is in an inconsistent state: storage directory does not exist or is not accessible.
    at org.apache.hadoop.hdfs.server.namenode.FSImage.recoverTransitionRead(FSImage.java:290)
    at org.apache.hadoop.hdfs.server.namenode.FSDirectory.loadFSImage(FSDirectory.java:88)
    at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.initialize(FSNamesystem.java:312)
    at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.<init>(FSNamesystem.java:293)
    at org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.java:224)
    at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:306)
    at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1006)
    at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1015)

2011-03-24 11:38:00,258 INFO org.apache.hadoop.hdfs.server.namenode.NameNode: SHUTDOWN_MSG: 
/************************************************************
SHUTDOWN_MSG: Shutting down NameNode at Brash/192.168.1.5
************************************************************/

我已经chmod -R 755在根目录上,甚至通过创建它来确保目录存在mkdir -p.

hadoop@Brash:/usr/lib/hadoop$ ls -la /usr/local/hadoop-datastore/hadoop-hadoop/dfs/
total 16
drwxr-xr-x 4 hadoop hadoop 4096 2011-03-24 11:41 .
drwxr-xr-x 4 hadoop hadoop 4096 2011-03-24 11:31 ..
drwxr-xr-x 2 hadoop hadoop 4096 2011-03-24 11:31 data
drwxr-xr-x 2 hadoop hadoop 4096 2011-03-24 11:41 name

这是我的/conf/hdfs-site.xml:

hadoop@Brash:/usr/lib/hadoop$ cat conf/hdfs-site.xml
<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
<configuration>
<property>
  <name>dfs.replication</name>
  <value>1</value>
  <description>Default block replication.
  The actual number of replications can be specified when the file is created.
  The default is used if replication is not specified in create time.
  </description>
</property>
</configuration>

Answer 1

您永远不必自己创建目录.它将自己创建它.你忘记格式化namenode了吗？删除现有目录,然后重新格式化namenode(bin/hadoop namenode -format)并再试一次.