当我尝试将数据从 hdfs 复制到 hbase uisng pig 时,输入文件中有两个以上的列(或字段)。我收到错误。详细示例:
HDFS 中的文件:/home/1.txt
1 2 3 4
5 6 7 8
具有两个列族的 Hbase 表:create 'table1','P','S'
猪命令:
A= load '/home/1.txt' using PigStorage('\t') as (one:chararray,two:chararray,three:chararray,four:chararray);
STORE A INTO 'hbase://table1' USING org.apache.pig.backend.hadoop.hbase.HBaseStorage('P:one,P:two,S:three,S:four');
错误日志:
*********
013-09-20 15:42:25,314 [main] ERROR org.apache.pig.tools.pigstats.PigStats - ERROR: Index: 1, Size: 1
2013-09-20 15:42:25,315 [main] ERROR org.apache.pig.tools.pigstats.PigStatsUtil - 1 map reduce job(s) failed!
2013-09-20 15:42:25,315 [main] INFO org.apache.pig.tools.pigstats.PigStats - Script Statistics:
HadoopVersion PigVersion UserId StartedAt FinishedAt Features
0.20.2-cdh3u6 0.8.1-cdh3u6 hdfs 2013-09-20 15:41:45 2013-09-20 15:42:25 UNKNOWN
Failed!
Failed Jobs:
JobId Alias Feature Message Outputs
job_201309051922_0192 A MAP_ONLY Message: Job failed! Error - NA hbase://hh2,
Input(s):
Failed to read data from "/home/1.txt"
Output(s):
Failed to produce result in "hbase://hh2"
Counters:
Total records written : 0
Total bytes written : 0
Spillable Memory Manager spill count : 0
Total bags proactively spilled: 0
Total records proactively spilled: 0
Job DAG:
job_201309051922_0192
2013-09-20 15:42:25,315 [main] INFO org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher - Failed!
2013-09-20 15:42:25,352 [main] ERROR org.apache.pig.tools.grunt.GruntParser - ERROR 2999: Unexpected internal error. Index: 1, Size: 1
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但是当我尝试只复制两个字段时它工作正常。下面的代码:
A= load '/home/1.txt' using PigStorage('\t') as (one:chararray,two:chararray);
STORE A INTO 'hbase://table1' USING org.apache.pig.backend.hadoop.hbase.HBaseStorage('P:one,P:two,S:three,S:four');
[s@namenode ~]$ hadoop version
Hadoop 0.20.2-cdh3u6
Hbase version : Version 0.90.6-cdh3u6
Pig version: Apache Pig version 0.8.1-cdh3u6 (rexported)