1、某台datanode机器启动不起来
某台datanode机器启动不起来，报错信息如下
具体问题
Failed to analyze storage directories for block pool BP-177636967-192.168.2.14-1502791129465 java.io.IOException: BlockPoolSliceStorage.recoverTransitionRead: attempt to load an used block storage: /richstone/hd03/dfs/dn/current/BP-177636967-192.168.2.14-1502791129465 at org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceStorage.loadBpStorageDirectories(BlockPoolSliceStorage.java:212) at org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceStorage.recoverTransitionRead(BlockPoolSliceStorage.java:244) at org.apache.hadoop.hdfs.server.datanode.DataStorage.addStorageLocations(DataStorage.java:395) at org.apache.hadoop.hdfs.server.datanode.