datanode DataNode失败卷上的致命磁盘错误：

Question

我将在我的namenode上获得以下日志并从执行中删除我的datanode

2013-02-08 03:25:54,345 WARN  namenode.NameNode (NameNodeRpcServer.java:errorReport(825)) - Fatal disk error on xxx.xxx.xxx.xxx:50010: DataNode failed volumes:/home/srikmvm/hadoop-0.23.0/tmp/current;
2013-02-08 03:25:54,349 INFO  net.NetworkTopology (NetworkTopology.java:remove(367)) - Removing a node: /default-rack/xxx.xxx.xxx.xxx:50010

有人能建议如何纠正这个问题吗？

数据节点日志：

2013-02-08 03:25:54,718 WARN datanode.DataNode (FSDataset.java:checkDirs(871)) - Removing failed volume /home/srikmvm/hadoop-0.23.0/tmp/current:   
    org.apache.hadoop.util.DiskChecker$DiskErrorException: can not create directory: /home/srikmvm/hadoop-0.23.0/tmp/current/BP-876979163-137.132.153.125-13602411944‌​23/current/finalized 
      at org.apache.hadoop.util.DiskChecker.checkDir(DiskChecker.java:87)

Answer 1

导致此错误消息的原因：

• 目录/路径是否存在？
• 运行datanode进程的用户是否有创建/写入此目录的权限？ /home/srikmvm/hadoop-0.23.0/tmp/current/BP-876979163-137.132.153.125-13602411944‌​23/current/finalized