Hadoop Datanode节点无法启动(All directories in dfs.data.dir are invalid)
2014-08-26 20:14
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Hadoop Datanode节点无法启动(All directories in dfs.data.dir are invalid)
java.io.IOException: All directories in dfs.datanode.data.dir are invalid: "/usr/local/hadoop-2.4.0/dfs/data" at org.apache.hadoop.hdfs.server.datanode.DataNode.checkStorageLocations(DataNode.java:1900) at org.apache.hadoop.hdfs.server.datanode.DataNode.makeInstance(DataNode.java:1873) at org.apache.hadoop.hdfs.server.datanode.DataNode.instantiateDataNode(DataNode.java:1772) at org.apache.hadoop.hdfs.server.datanode.DataNode.createDataNode(DataNode.java:1812) at org.apache.hadoop.hdfs.server.datanode.DataNode.secureMain(DataNode.java:1988) at org.apache.hadoop.hdfs.server.datanode.DataNode.main(DataNode.java:2012) 2014-08-26 20:02:08,720 INFO org.apache.hadoop.util.ExitUtil: Exiting with status 1
原因:多了用户组的写权限能造成集群系统的无法启动。
解决:
root@VM_160_34_centos:/usr/local/hadoop-2.4.0> chmod -R 755 dfs
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