安装新的 hadoop 单节点后,在 hadoop-root-datanode-localhost.localdomain.log 中出现以下错误
2014-06-18 23:43:23,594 ERROR org.apache.hadoop.security.UserGroupInformation: PriviledgedActionException as:root cause:java.net.ConnectException: Call to localhost/127.0.0.1:54310 failed on connection exception: java.net.ConnectException: Connection refused
2014-06-18 23:43:23,595 INFO org.apache.hadoop.mapred.JobTracker: Problem connecting to HDFS Namenode... re-trying java.net.ConnectException: Call to localhost/127.0.0.1:54310 failed on connection exception: java.net.ConnectException: Connection refusedat org.apache.hadoop.ipc.Client.wrapException(Client.java:1142)
任何想法。?
JPS 没有给出任何输出
核心 site.xml 已更新
<configuration>
<property>
<name>hadoop.tmp.dir</name>
<value>/opt/surya/hadoop-1.2.1/tmp</value>
<description>A base for other temporary directories.</description>
</property>
<property>
<name>fs.default.name</name>
<value>hdfs://localhost:54310</value>
<description>The name of the default file system. A URI whose
scheme and authority determine the FileSystem implementation. The
uri's scheme determines the config property (fs.SCHEME.impl) naming
the FileSystem implementation class. The uri's authority is used to
determine the host, port, etc. for a filesystem.</description>
</property>
</configuration>
此外,关于使用hadoop namenode的格式 - 格式 低于中止错误
Re-format filesystem in /tmp/hadoop-root/dfs/name ? (Y or N) y
Format aborted in /tmp/hadoop-root/dfs/name