线上一个job出错,报错信息如下:
Diagnostic Messages for this Task:
Error
:
java.io.IOException: java.io.EOFException: Unexpected end of input stream
at org.apache.hadoop.hive.io.HiveIOExceptionHandlerChain.handleRecordReaderNextException(HiveIOExceptionHandlerChain.java:121)
at org.apache.hadoop.hive.io.HiveIOExceptionHandlerUtil.handleRecordReaderNextException(HiveIOExceptionHandlerUtil.java:77)
at org.apache.hadoop.hive.ql.io.HiveContextAwareRecordReader.doNext(HiveContextAwareRecordReader.java:276)
at org.apache.hadoop.hive.ql.io.HiveRecordReader.doNext(HiveRecordReader.java:79)
at org.apache.hadoop.hive.ql.io.HiveRecordReader.doNext(HiveRecordReader.java:33)
at org.apache.hadoop.hive.ql.io.HiveContextAwareRecordReader.next(HiveContextAwareRecordReader.java:108)
at org.apache.hadoop.mapred.MapTask$TrackedRecordReader.moveToNext(MapTask.java:196)
at org.apache.hadoop.mapred.MapTask$TrackedRecordReader.next(MapTask.java:182)
at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:52)
at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:428)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:340)
at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:160)
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:1438)
at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:155)
Caused by: java.io.EOFException: Unexpected end of input stream
at org.apache.hadoop.io.compress.DecompressorStream.decompress(DecompressorStream.java:143)
at org.apache.hadoop.io.compress.DecompressorStream.read(DecompressorStream.java:83)
at java.io.InputStream.read(InputStream.java:82)
at org.apache.hadoop.util.LineReader.readDefaultLine(LineReader.java:209)
at org.apache.hadoop.util.LineReader.readLine(LineReader.java:173)
at org.apache.hadoop.mapred.LineRecordReader.next(LineRecordReader.java:206)
at org.apache.hadoop.mapred.LineRecordReader.next(LineRecordReader.java:45)
at org.apache.hadoop.hive.ql.io.HiveContextAwareRecordReader.doNext(HiveContextAwareRecordReader.java:274)
... 13 more
从报错信息来看,是和io读取有关系的,即在map阶段,数据读取出错导致。
通过explain extended查看读取的文件,因为是text的gz文件,使用zcat进行测试,最终定位到是由于gz文件异常导致。将有问题的数据删除后job恢复。
该贴被蜀山战纪编辑于2015-12-4 10:02:05