Avro：java.lang.RuntimeException：记录中不支持的类型

Posted 2023-04-18

【中文标题】Avro：java.lang.RuntimeException：记录中不支持的类型

【英文标题】：Avro : java.lang.RuntimeException: Unsupported type in record

【发布时间】：2015-06-03 06:09:12

【问题描述】：

输入：test.csv

100
101
102

猪脚本：

REGISTER required jars are registered;

A = LOAD 'test.csv'  USING org.apache.pig.piggybank.storage.CSVExcelStorage() AS (code:chararray);

STORE A INTO 'test' USING org.apache.pig.piggybank.storage.avro.AvroStorage
    ('schema',
    '"namespace":"com.pig.test.avro","type":"record","name":"Avro_Test","doc":"Avro Test Schema",
        "fields":[
            "name":"code","type":["string","null"],"default":null
            ]'
    );

在 STORE 时出现运行时错误。解决相同问题的任何输入。

错误日志：

ERROR org.apache.pig.tools.pigstats.SimplePigStats - ERROR 2997: Unable to recreate exception from backed error: org.apache.avro.file.DataFileWriter$AppendWriteException: java.lang.RuntimeException: Unsupported type in record:class java.lang.String
at org.apache.avro.file.DataFileWriter.append(DataFileWriter.java:263)
at org.apache.pig.piggybank.storage.avro.PigAvroRecordWriter.write(PigAvroRecordWriter.java:49)
at org.apache.pig.piggybank.storage.avro.AvroStorage.putNext(AvroStorage.java:722)
at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigOutputFormat$PigRecordWriter.write(PigOutputFormat.java:139)
at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigOutputFormat$PigRecordWriter.write(PigOutputFormat.java:98)
at org.apache.hadoop.mapred.MapTask$NewDirectOutputCollector.write(MapTask.java:558)
at org.apache.hadoop.mapreduce.task.TaskInputOutputContextImpl.write(TaskInputOutputContextImpl.java:85)
at org.apache.hadoop.mapreduce.lib.map.WrappedMapper$Context.write(WrappedMapper.java:106)
at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigMapOnly$Map.collect(PigMap
2015-06-02 23:06:03,934 [main] ERROR org.apache.pig.tools.pigstats.PigStatsUtil - 1 map reduce job(s) failed!  
2015-06-02 23:06:03,934 [main] INFO  org.apache.pig.tools.pigstats.SimplePigStats - Script Statistics: 

【参考方案1】：

看起来这是一个错误：https://issues.apache.org/jira/browse/PIG-3358

如果可以的话，尝试更新到 pig 0.14，根据 cmets 这已经修复。

【讨论】：

感谢您关注此问题。根据 cmets 的建议，尝试在输入中再引入一个字段（而不是单个字段）。有了这个改变并没有最终看到这个问题。