Examples of MRStreamHandler

org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.plans.MRStreamHandler
This visitor visits the MRPlan and does the following for each MROper - If the map plan or the reduce plan of the MROper has a POStream in it, this marks in the MROper whether the map has a POStream or if the reduce has a POStream.

Examples of org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.plans.MRStreamHandler

        // optimize key - value handling in package
        POPackageAnnotator pkgAnnotator = new POPackageAnnotator(plan);
        pkgAnnotator.visit();
        
        // check whether stream operator is present
        MRStreamHandler checker = new MRStreamHandler(plan);
        checker.visit();
        
        // optimize joins
        LastInputStreamingOptimizer liso = 
            new MRCompiler.LastInputStreamingOptimizer(plan, lastInputChunkSize);
        liso.visit();

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Examples of org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.plans.MRStreamHandler

        // optimize key - value handling in package
        POPackageAnnotator pkgAnnotator = new POPackageAnnotator(plan);
        pkgAnnotator.visit();
        
        // check whether stream operator is present
        MRStreamHandler checker = new MRStreamHandler(plan);
        checker.visit();


        // optimize joins
        LastInputStreamingOptimizer liso = 
            new MRCompiler.LastInputStreamingOptimizer(plan, lastInputChunkSize);
        liso.visit();

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Examples of org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.plans.MRStreamHandler

        sRem.visit();
      
        // check whether stream operator is present
        // after MultiQueryOptimizer because it can shift streams from
        // map to reduce, etc.
        MRStreamHandler checker = new MRStreamHandler(plan);
        checker.visit();
        
        return plan;
    }

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