Question

这是jps的结果。

ibrahim@Fatima:~$ jps
24019 SecondaryNameNode
24293 NodeManager
24692 Jps
24167 ResourceManager

ibrahim@Fatima:~$ netstat -plten | grep java
(Not all processes could be identified, non-owned process info
 will not be shown, you would have to be root to see it all.)
tcp        0      0 0.0.0.0:50090           0.0.0.0:*               LISTEN      1000       185862      24019/java      
tcp6       0      0 :::8088                 :::*                    LISTEN      1000       190431      24167/java      
tcp6       0      0 :::8030                 :::*                    LISTEN      1000       187327      24167/java      
tcp6       0      0 :::8031                 :::*                    LISTEN      1000       187319      24167/java      
tcp6       0      0 :::8032                 :::*                    LISTEN      1000       187758      24167/java      
tcp6       0      0 :::8033                 :::*                    LISTEN      1000       190439      24167/java      
tcp6       0      0 :::45700                :::*                    LISTEN      1000       190650      24293/java      
tcp6       0      0 :::8040                 :::*                    LISTEN      1000       190658      24293/java      
tcp6       0      0 :::8042                 :::*                    LISTEN      1000       190663      24293/java

目录/ app / hadoop / tmp / dfs只包含一个文件夹 - namesecondary - 为空。我在这里看到的解决方案建议将namespaceID从/ app / hadoop / tmp / dfs / name / current / VERSION复制到/ app / hadoop / tmp / dfs / data / current / VERSION，但这些目录不在哪里在namenode格式中创建。

我丢失了hdfs及其上的所有数据，因为在namenode格式下运行的守护程序。

Answer 1

编辑hdfs-site.xml，如下所示：

<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>
 <property>
   <name>dfs.namenode.name.dir</name>
  <value>/app/hadoop/tmp/dfs/name</value>
<final>true</final>
 </property>
 <property>
   <name>dfs.datanode.data.dir</name>
<value>/app/hadoop/tmp/dfs/data</value>
<final>true</final>
 </property>

sudo -rm -r -f / app / hadoop / tmp
sudo mkdir chown用户名：hadoopgroup / app / hadoop / tmp
stop-all.sh
hadoop namenode -format
JPS

在https://groups.google.com/forum/#!topic/chennaihug/g_uJVIjykXk中找到了解决方案，但进行了一些更改。

Datanode和namenode未运行

1 个答案: