Examples of org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.JobControlCompiler.compile()

org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.JobControlCompiler.compile()
Compiles all jobs that have no dependencies removes them from the plan and returns. Should be called with the same plan until exhausted. @param plan - The MROperPlan to be compiled @param grpName - The name given to the JobControl @return JobControl object - null if no more jobs in plan @throws JobCreationException

      
        ConfigurationValidator.validatePigProperties(pc.getProperties());
        Configuration conf = ConfigurationUtil.toConfiguration(pc.getProperties());
        JobControlCompiler jcc = new JobControlCompiler(pc, conf);
        try {
          jcc.compile(mrPlan, "Test");
        } catch (JobCreationException jce) {
            assertTrue(jce.getErrorCode() == 1068);
        }
    }

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        ConfigurationValidator.validatePigProperties(pc.getProperties());
        Configuration conf = ConfigurationUtil.toConfiguration(pc.getProperties());
        JobControlCompiler jcc = new JobControlCompiler(pc, conf);
        
        JobControl jobControl = jcc.compile(mrPlan, "Test");
        Job job = jobControl.getWaitingJobs().get(0);
        int parallel = job.getJobConf().getNumReduceTasks();


        assertTrue(parallel==100);

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        pc.getConf().setProperty("pig.exec.reducers.bytes.per.reducer", "100");
        pc.getConf().setProperty("pig.exec.reducers.max", "10");
        ConfigurationValidator.validatePigProperties(pc.getProperties());
        Configuration conf = ConfigurationUtil.toConfiguration(pc.getProperties());
        JobControlCompiler jcc = new JobControlCompiler(pc, conf);
        JobControl jc=jcc.compile(mrPlan, "Test");
        Job job = jc.getWaitingJobs().get(0);
        long reducer=Math.min((long)Math.ceil(new File("test/org/apache/pig/test/data/passwd").length()/100.0), 10);
        assertEquals(job.getJobConf().getLong("mapred.reduce.tasks",10), reducer);
        
        // use the PARALLEL key word, it will override the estimated reducer number

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        pc.getConf().setProperty("pig.exec.reducers.bytes.per.reducer", "100");
        pc.getConf().setProperty("pig.exec.reducers.max", "10");
        ConfigurationValidator.validatePigProperties(pc.getProperties());
        conf = ConfigurationUtil.toConfiguration(pc.getProperties());
        jcc = new JobControlCompiler(pc, conf);
        jc=jcc.compile(mrPlan, "Test");
        job = jc.getWaitingJobs().get(0);
        assertEquals(job.getJobConf().getLong("mapred.reduce.tasks",10), 2);
        
        final byte[] COLUMNFAMILY = Bytes.toBytes("pig");
        HTable table = util.createTable(Bytes.toBytesBinary("passwd"),

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        pc.getConf().setProperty("pig.exec.reducers.max", "10");


        ConfigurationValidator.validatePigProperties(pc.getProperties());
        conf = ConfigurationUtil.toConfiguration(pc.getProperties());
        jcc = new JobControlCompiler(pc, conf);
        jc=jcc.compile(mrPlan, "Test");
        job = jc.getWaitingJobs().get(0);
        assertEquals(job.getJobConf().getLong("mapred.reduce.tasks",10), 1);
        util.deleteTable(Bytes.toBytesBinary("passwd"));
    }

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        Configuration jobConf;
        // jc is null only when mrp.size == 0
        boolean needFileInput;
        final ArrayList<OperatorKey> emptyInpTargets = new ArrayList<OperatorKey>();
        while(mrp.size() != 0) {
            jc = jcc.compile(mrp, "Illustrator");
            if(jc == null) {
                throw new ExecException("Native execution is not supported");
            }
            List<Job> jobs = jc.getWaitingJobs();
            for (Job job : jobs) {

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        ConfigurationValidator.validatePigProperties(pc.getProperties());
        Configuration conf = ConfigurationUtil.toConfiguration(pc.getProperties());
        JobControlCompiler jcc = new JobControlCompiler(pc, conf);
        try {
          jcc.compile(mrPlan, "Test");
        } catch (JobCreationException jce) {
            assertTrue(jce.getErrorCode() == 1068);
        }
    }

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        ConfigurationValidator.validatePigProperties(pc.getProperties());
        Configuration conf = ConfigurationUtil.toConfiguration(pc.getProperties());
        JobControlCompiler jcc = new JobControlCompiler(pc, conf);
        
        JobControl jobControl = jcc.compile(mrPlan, "Test");
        Job job = jobControl.getWaitingJobs().get(0);
        int parallel = job.getJobConf().getNumReduceTasks();


        assertEquals(100, parallel);
        Util.assertParallelValues(100, -1, -1, 100, job.getJobConf());

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        pc.getConf().setProperty("pig.exec.reducers.bytes.per.reducer", "100");
        pc.getConf().setProperty("pig.exec.reducers.max", "10");
        ConfigurationValidator.validatePigProperties(pc.getProperties());
        conf = ConfigurationUtil.toConfiguration(pc.getProperties());
        JobControlCompiler jcc = new JobControlCompiler(pc, conf);
        JobControl jc=jcc.compile(mrPlan, "Test");
        Job job = jc.getWaitingJobs().get(0);
        long reducer=Math.min((long)Math.ceil(new File("test/org/apache/pig/test/data/passwd").length()/100.0), 10);


        Util.assertParallelValues(-1, -1, reducer, reducer, job.getJobConf());

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        pc.getConf().setProperty("pig.exec.reducers.bytes.per.reducer", "100");
        pc.getConf().setProperty("pig.exec.reducers.max", "10");
        ConfigurationValidator.validatePigProperties(pc.getProperties());
        conf = ConfigurationUtil.toConfiguration(pc.getProperties());
        jcc = new JobControlCompiler(pc, conf);
        jc=jcc.compile(mrPlan, "Test");
        job = jc.getWaitingJobs().get(0);


        Util.assertParallelValues(-1, 2, -1, 2, job.getJobConf());


        final byte[] COLUMNFAMILY = Bytes.toBytes("pig");

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