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以前有沒有人有這個問題？java.lang.NullPointerException在org.apache.hadoop.conf.Configuration.getLocalpath（配置）
The following are the error information when I run the job:
13/01/10 15:53:19 INFO mapred.JobClient: Task Id : attempt_201301101540_0001_m_000010_0, Status : FAILED
java.lang.NullPointerException
at org.apache.hadoop.conf.Configuration.getLocalPath(Configuration.java:934)
at nfs.iscas.sil.hcir.index.ImageIndexWriter.<init>(Unknown Source)
at nfs.iscas.sil.hcir.index.ImageIndexOutputFormat.getRecordWriter(Unknown Source)
at org.apache.hadoop.mapred.MapTask$NewDirectOutputCollector.<init>(MapTask.java:627)
at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:752)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:369)
at org.apache.hadoop.mapred.Child$4.run(Child.java:259)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:396)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1059)
at org.apache.hadoop.mapred.Child.main(Child.java:253)