将关系存储到猪的本地文件中不起作用

Question

我是猪的新手，我正在使用存储在/ etc / passwd中的passwd文件。我已经在本地模式下启动了猪，代码为

A = LOAD 'passwd' using PigStorage(':');
B = foreach A generate $0 as id;
STORE B INTO 'output';

给我以下错误的作业未能产生结果。最后一行如果写入DUMP B;生成输出。这里是什么问题。？ 提前致谢

Failed Jobs:
JobId   Alias   Feature Message Outputs
job_local_0004  A,B MAP_ONLY    Message: Job failed! Error - NA file:///home/monish/Desktop/output.txt,

Input(s):
Failed to read data from "file:///home/monish/Desktop/passwd"

Output(s):
Failed to produce result in "file:///home/monish/Desktop/output.txt"

Job DAG:
job_local_0004


2013-02-07 11:13:40,578 [main] INFO      org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher - Failed!

Answer 1

看起来你是从你的本地目录（file：/// home / monish / Desktop）调用pig，然后使用相对路径加载文件。

尝试并完全限定文件路径：

A = LOAD '/etc/passwd' using PigStorage(':');