hadoop Unexpected end of input stream 错误

标签：hadoop unexpected end of input stream

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。

本文出自 “菜光光的博客” 博客，请务必保留此出处http://caiguangguang.blog.51cto.com/1652935/1436077

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hadoop Unexpected end of input stream 错误

标签：hadoop unexpected end of input stream

原文地址：http://caiguangguang.blog.51cto.com/1652935/1436077