hadoop错误

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datanode无法启动

datanode中日志文件如下：

2014-03-10 15:25:18,067 INFO org.apache.hadoop.metrics2.impl.MetricsConfig: loaded properties from hadoop-metrics2.properties
2014-03-10 15:25:18,087 INFO org.apache.hadoop.metrics2.impl.MetricsSourceAdapter: MBean for source MetricsSystem,sub=Stats registered.
2014-03-10 15:25:18,088 INFO org.apache.hadoop.metrics2.impl.MetricsSystemImpl: Scheduled snapshot period at 10 second(s).
2014-03-10 15:25:18,088 INFO org.apache.hadoop.metrics2.impl.MetricsSystemImpl: DataNode metrics system started
2014-03-10 15:25:18,348 INFO org.apache.hadoop.metrics2.impl.MetricsSourceAdapter: MBean for source ugi registered.
2014-03-10 15:25:18,354 WARN org.apache.hadoop.metrics2.impl.MetricsSystemImpl: Source name ugi already exists!
2014-03-10 15:25:23,896 INFO org.apache.hadoop.hdfs.server.common.Storage: Storage directory /home/hadoop/hdfs/data is not formatted.
2014-03-10 15:25:23,896 INFO org.apache.hadoop.hdfs.server.common.Storage: Formatting ...
2014-03-10 15:25:23,927 INFO org.apache.hadoop.hdfs.server.datanode.DataNode: Registered FSDatasetStatusMBean
2014-03-10 15:25:23,942 INFO org.apache.hadoop.hdfs.server.datanode.DataNode: Opened info server at 50010
2014-03-10 15:25:23,944 INFO org.apache.hadoop.hdfs.server.datanode.DataNode: Balancing bandwith is 1048576 bytes/s
2014-03-10 15:25:29,056 INFO org.mortbay.log: Logging to org.slf4j.impl.Log4jLoggerAdapter(org.mortbay.log) via org.mortbay.log.Slf4jLog
2014-03-10 15:25:29,169 INFO org.apache.hadoop.http.HttpServer: Added global filtersafety (class=org.apache.hadoop.http.HttpServer$QuotingInputFilter)
2014-03-10 15:25:29,181 INFO org.apache.hadoop.hdfs.server.datanode.DataNode: dfs.webhdfs.enabled = false
2014-03-10 15:25:29,181 INFO org.apache.hadoop.http.HttpServer: Port returned by webServer.getConnectors()[0].getLocalPort() before open() is -1. Opening the listener on 50075
2014-03-10 15:25:29,182 INFO org.apache.hadoop.http.HttpServer: listener.getLocalPort() returned 50075 webServer.getConnectors()[0].getLocalPort() returned 50075
2014-03-10 15:25:29,182 INFO org.apache.hadoop.http.HttpServer: Jetty bound to port 50075
2014-03-10 15:25:29,182 INFO org.mortbay.log: jetty-6.1.26
2014-03-10 15:25:29,718 INFO org.mortbay.log: Started SelectChannelConnector@0.0.0.0:50075
2014-03-10 15:25:29,722 INFO org.apache.hadoop.metrics2.impl.MetricsSourceAdapter: MBean for source jvm registered.
2014-03-10 15:25:29,723 INFO org.apache.hadoop.metrics2.impl.MetricsSourceAdapter: MBean for source DataNode registered.
2014-03-10 15:25:35,162 INFO org.apache.hadoop.ipc.Server: Starting SocketReader
2014-03-10 15:25:35,162 INFO org.apache.hadoop.metrics2.impl.MetricsSourceAdapter: MBean for source RpcDetailedActivityForPort50020 registered.
2014-03-10 15:25:35,163 INFO org.apache.hadoop.metrics2.impl.MetricsSourceAdapter: MBean for source RpcActivityForPort50020 registered.
2014-03-10 15:25:35,165 INFO org.apache.hadoop.hdfs.server.datanode.DataNode: dnRegistration = DatanodeRegistration(slave1:50010, storageID=, infoPort=50075, ipcPort=50020)
2014-03-10 15:26:08,627 INFO org.apache.hadoop.hdfs.server.datanode.DataNode: New storage id DS-58884309-127.0.1.1-50010-1394436368609 is assigned to data-node 192.168.137.17:50010

重新格式化还是不能解决。

解决办法：手动删除hadoop.tmp.dir属性下的所有文件和目录，然后重新格式化即可

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