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  • hadoop_异常_02_ExitCodeException exitCode=1: chmod: changing permissions of `/ray/hadoop/dfs/data': Operation not permitted

    一、异常现象

    启动hadoop时,datanode启动失败,出现如下异常:

    2018-03-23 14:39:09,962 WARN org.apache.hadoop.hdfs.server.datanode.DataNode: Invalid dfs.datanode.data.dir /ray/hadoop/dfs/data : 
    ExitCodeException exitCode=1: chmod: changing permissions of `/ray/hadoop/dfs/data': Operation not permitted
    
        at org.apache.hadoop.util.Shell.runCommand(Shell.java:538)
        at org.apache.hadoop.util.Shell.run(Shell.java:455)
        at org.apache.hadoop.util.Shell$ShellCommandExecutor.execute(Shell.java:715)
        at org.apache.hadoop.util.Shell.execCommand(Shell.java:808)
        at org.apache.hadoop.util.Shell.execCommand(Shell.java:791)
        at org.apache.hadoop.fs.RawLocalFileSystem.setPermission(RawLocalFileSystem.java:656)
        at org.apache.hadoop.fs.FilterFileSystem.setPermission(FilterFileSystem.java:490)
        at org.apache.hadoop.util.DiskChecker.mkdirsWithExistsAndPermissionCheck(DiskChecker.java:140)
        at org.apache.hadoop.util.DiskChecker.checkDir(DiskChecker.java:156)
        at org.apache.hadoop.hdfs.server.datanode.DataNode$DataNodeDiskChecker.checkDir(DataNode.java:2239)
        at org.apache.hadoop.hdfs.server.datanode.DataNode.checkStorageLocations(DataNode.java:2281)
        at org.apache.hadoop.hdfs.server.datanode.DataNode.makeInstance(DataNode.java:2263)
        at org.apache.hadoop.hdfs.server.datanode.DataNode.instantiateDataNode(DataNode.java:2155)
        at org.apache.hadoop.hdfs.server.datanode.DataNode.createDataNode(DataNode.java:2202)
        at org.apache.hadoop.hdfs.server.datanode.DataNode.secureMain(DataNode.java:2378)
        at org.apache.hadoop.hdfs.server.datanode.DataNode.main(DataNode.java:2402)
    2018-03-23 14:39:09,965 FATAL org.apache.hadoop.hdfs.server.datanode.DataNode: Exception in secureMain
    java.io.IOException: All directories in dfs.datanode.data.dir are invalid: "/ray/hadoop/dfs/data/" 
        at org.apache.hadoop.hdfs.server.datanode.DataNode.checkStorageLocations(DataNode.java:2290)
        at org.apache.hadoop.hdfs.server.datanode.DataNode.makeInstance(DataNode.java:2263)
        at org.apache.hadoop.hdfs.server.datanode.DataNode.instantiateDataNode(DataNode.java:2155)
        at org.apache.hadoop.hdfs.server.datanode.DataNode.createDataNode(DataNode.java:2202)
        at org.apache.hadoop.hdfs.server.datanode.DataNode.secureMain(DataNode.java:2378)
        at org.apache.hadoop.hdfs.server.datanode.DataNode.main(DataNode.java:2402)
    2018-03-23 14:39:09,970 INFO org.apache.hadoop.util.ExitUtil: Exiting with status 1

    二、异常原因

     原因是 用户 ray 不具备文件夹所属权

    三、异常解决

     通过命令:

     sudo  chown -R  ray:ray /ray

    将文件夹ray及其子文件夹的所属权赋给用户 ray

    然后再重新启动即可

    四、参考资料

     自己奇思妙想

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  • 原文地址:https://www.cnblogs.com/shirui/p/8630319.html
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