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https://issues.apache.org/jira/browse/PIG-3915?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14188626#comment-14188626
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Suhas Satish commented on PIG-3915:
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[~daijy] - When I use runpigmix.pl related to a map-reduce job on a
hadoop-0.20.2 core, I get this error -
hadoop jar /opt/mapr/pig/pig-0.13/pigperf.jar
org.apache.pig.test.pigmix.mapreduce.L1 /pigmix /pigmixresults/mapreduce 40
Exception in thread "main" java.lang.VerifyError: (class:
org/apache/pig/test/pigmix/mapreduce/L1, method: main signature:
([Ljava/lang/String;)V) Incompatible argument to function
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:270)
at org.apache.hadoop.util.RunJar.main(RunJar.java:190)
Was wondering since this change set is based on mapred(old) API (as per
[~keren3000]'s 1st comment) its causing some byte code incompatibilities?
> MapReduce queries in Pigmix outputs different results than Pig's
> ----------------------------------------------------------------
>
> Key: PIG-3915
> URL: https://issues.apache.org/jira/browse/PIG-3915
> Project: Pig
> Issue Type: Bug
> Components: tools
> Affects Versions: 0.12.0
> Reporter: Keren Ouaknine
> Assignee: Keren Ouaknine
> Fix For: 0.13.0
>
> Attachments: PIG-3915.2.patch
>
>
> Hello,
> The Pigmix benchmark has 17 queries comparing Pig to MapReduce Java. Some of
> these queries are not outputting the same results in Pig and MapReduce.
> Looking into the outputs, it seems the errors reside in the MapReduce code.
> For example, L6 has no output because the output of the map function sends
> the wrong key to the reducer: "query_term" (field 3) instead of "timespent"
> (field 2). Hence an exception is thrown, and there is no output to the query
> in MapReduce. I am planning to submit a patch once I fixed all the queries in
> MapReduce :)
> Thanks,
> Keren
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