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From tuzibuluo <>
Subject Hadoop datanode The directory is already locked
Date Fri, 12 Aug 2011 07:56:44 GMT
Hi guys!
when I start a cluster,use jps check the process , find only three process
namenode,datanode,and jps,but other tow datanode don't start,when I check
the datanode  logs ,find the ERROR
org.apache.hadoop.hdfs.server.datanode.DataNode: Cannot
lock storage /usr/hadoop/hadoop-data. The directory is already locked.
How can I slove this probleam,Thans!

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