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2556 Comments
yangxla 说道：问个 hadoop 0.21.0兼容性问题将hadoop 0.20.0升级到0.21.0 后FileSystem.get 会报错:java.io.IOException: Filesystem cloesd at org.apache.hadoop.hdfs.DFSClient.checkOpen(DFSClient.java:297) at org.apache.hadoop.hdfs.DFSInputStream.close(DFSInputStream.java:426) at java.io.FilterInputStream.close(FilterInputStream.java:155) at java.util.zip.InflaterInputStream.close(InflaterInputStream.java:210) at java.util.zip.GZIPInputStream.close(GZIPInputStream.java:109) at org.apache.hadoop.io.compress.GzipCodec$GzipInputStream.close(GzipCodec.java:126) at org.apache.hadoop.util.LineReader.close(LineReader.java:87) at org.apache.hadoop.mapred.LineRecordReader.close(LineRecordReader.java:214) at org.apache.hadoop.mapred.MapTask$TrackedRecordReader.close(MapTask.java:218) at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:404) at org.apache.hadoop.mapred.MapTask.run(MapTask.java:330) at org.apache.hadoop.mapred.Child$4.run(Child.java:217) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:396) at org.apache.hadoop.securit只能将FileSystem.get 改为FileSystem.newInstance请问淘宝达人，有什么办法解决这个问题，避免大规模修改mapred应用