线上一个job出错，报错信息如下：
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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。
本文转自菜菜光 51CTO博客，原文链接：http://blog.51cto.com/caiguangguang/1436077，如需转载请自行联系原作者
