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https://issues.apache.org/jira/browse/PIG-5171?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15967212#comment-15967212
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liyunzhang_intel commented on PIG-5171:
---------------------------------------
[~nkollar]: it is a problem of mr. I guess if change SecondarySort_7 like(
change desc to asc) , it will pass because in spark it implements secondary
sort in desc while in mr it does not.
{code}
{
'num' => 7,
'java_params' => ['-Dpig.accumulative.batchsize=5'],
'pig' => q\register :FUNCPATH:/testudf.jar;
a = load ':INPATH:/singlefile/studenttab10k' as
(name:chararray, age:int, gpa:float);
b = group a by age parallel 10;
c = foreach b {
d = order a by gpa, name asc;
generate group,
org.apache.pig.test.udf.evalfunc.AllFirstLetter(d.gpa),
org.apache.pig.test.udf.evalfunc.AllFirstLetter(d.name);
};
store c into ':OUTPATH:';\,
},
{code}
Can you help verify it? if it is a mr bug, file jira and close current jira.
> SecondarySort_7 is failing with spark exec type
> -----------------------------------------------
>
> Key: PIG-5171
> URL: https://issues.apache.org/jira/browse/PIG-5171
> Project: Pig
> Issue Type: Sub-task
> Components: spark
> Reporter: Nandor Kollar
> Fix For: spark-branch
>
>
> different output produced
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