Daniel Dai commented on PIG-1001:

Hi, Nigel,
Since this patch is all about error message and user experience, so it is hard 
to write a unit test case for that. I tested it manually with the following 
1. All jobs are successful
2. One complete failed job, and we stop launching dependent jobs
3. Two independent job, one fail, with and without -F option

All of those give us desired error messages.

> Generate more meaningful error message when one input file does not exist
> -------------------------------------------------------------------------
>                 Key: PIG-1001
>                 URL: https://issues.apache.org/jira/browse/PIG-1001
>             Project: Pig
>          Issue Type: Bug
>    Affects Versions: 0.4.0
>            Reporter: Daniel Dai
>            Assignee: Daniel Dai
>             Fix For: 0.6.0
>         Attachments: PIG-1001-1.patch, PIG-1001-2.patch
> In the following query, if 1.txt does not exist, 
> a = load '1.txt';
> b = group a by $0;
> c = group b all;
> dump c;
> Pig throws error message "ERROR 2100: file:/tmp/temp155054664/tmp1144108421 
> does not exist.", Pig should deal with it with the error message "Input file 
> 1.txt not exist" instead of those confusing messages.

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