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https://issues.apache.org/jira/browse/PIG-120?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12573426#action_12573426
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Stefan Groschupf commented on PIG-120:
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I'm very sorry for the confusion.
In general *all the same tests run in every case* we just switch execution
engines and execution engine configurations.
ant -Dtest.mode=excelLocal -> runs the pig local execution engine
ant -Dtest.mode=mapredLocal -> runs the hadoop execution engine but using the
hadoops LocalJobRunner -- this should be default, since the test suite would
run in the less than 50 % of the time
ant -Dtest.mode=mapredCluster -> runs the hadoop execution egine with the
minicluster.
My testcase only test if it is possible to set "local" as nameNode and
jobtracker - nothing else.
I guess we can find better names for the test modes.
> support hadoop map reduce in loal mode
> --------------------------------------
>
> Key: PIG-120
> URL: https://issues.apache.org/jira/browse/PIG-120
> Project: Pig
> Issue Type: Bug
> Reporter: Stefan Groschupf
> Attachments: PIG-120_v_1.patch
>
>
> Currently pig support mapreduce and local as execution modes.
> LocalExecutionEngine is used for local and HExecutionEngine for map reduce.
> HExecutionEngine always expect that hadoop runs as cluster with a name node
> and jobtracker listing on a port.
> Though, hadoop can also run in a local mode (LocalJobRunner) this would give
> several advantages.
> First it would speed up the test suite significant. Second it would be
> possible to debug map reduce plans easily.
> For example we was able to debug and reproduce PIG-110 with this method.
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