Example usage for org.apache.hadoop.mapred JobConf setBooleanIfUnset

Introduction

In this page you can find the example usage for org.apache.hadoop.mapred JobConf setBooleanIfUnset.

Prototype

public void setBooleanIfUnset(String name, boolean value) 

Source Link

Document

Set the given property, if it is currently unset.

Usage

From source file:org.apache.ignite.internal.processors.hadoop.GridHadoopUtils.java

License:Apache License

/**
 * Creates JobInfo from hadoop configuration.
 *
 * @param cfg Hadoop configuration.// www.  j  a va 2 s.  c  om
 * @return Job info.
 * @throws IgniteCheckedException If failed.
 */
public static GridHadoopDefaultJobInfo createJobInfo(Configuration cfg) throws IgniteCheckedException {
    JobConf jobConf = new JobConf(cfg);

    boolean hasCombiner = jobConf.get("mapred.combiner.class") != null
            || jobConf.get(MRJobConfig.COMBINE_CLASS_ATTR) != null;

    int numReduces = jobConf.getNumReduceTasks();

    jobConf.setBooleanIfUnset("mapred.mapper.new-api", jobConf.get(OLD_MAP_CLASS_ATTR) == null);

    if (jobConf.getUseNewMapper()) {
        String mode = "new map API";

        ensureNotSet(jobConf, "mapred.input.format.class", mode);
        ensureNotSet(jobConf, OLD_MAP_CLASS_ATTR, mode);

        if (numReduces != 0)
            ensureNotSet(jobConf, "mapred.partitioner.class", mode);
        else
            ensureNotSet(jobConf, "mapred.output.format.class", mode);
    } else {
        String mode = "map compatibility";

        ensureNotSet(jobConf, MRJobConfig.INPUT_FORMAT_CLASS_ATTR, mode);
        ensureNotSet(jobConf, MRJobConfig.MAP_CLASS_ATTR, mode);

        if (numReduces != 0)
            ensureNotSet(jobConf, MRJobConfig.PARTITIONER_CLASS_ATTR, mode);
        else
            ensureNotSet(jobConf, MRJobConfig.OUTPUT_FORMAT_CLASS_ATTR, mode);
    }

    if (numReduces != 0) {
        jobConf.setBooleanIfUnset("mapred.reducer.new-api", jobConf.get(OLD_REDUCE_CLASS_ATTR) == null);

        if (jobConf.getUseNewReducer()) {
            String mode = "new reduce API";

            ensureNotSet(jobConf, "mapred.output.format.class", mode);
            ensureNotSet(jobConf, OLD_REDUCE_CLASS_ATTR, mode);
        } else {
            String mode = "reduce compatibility";

            ensureNotSet(jobConf, MRJobConfig.OUTPUT_FORMAT_CLASS_ATTR, mode);
            ensureNotSet(jobConf, MRJobConfig.REDUCE_CLASS_ATTR, mode);
        }
    }

    Map<String, String> props = new HashMap<>();

    for (Map.Entry<String, String> entry : jobConf)
        props.put(entry.getKey(), entry.getValue());

    return new GridHadoopDefaultJobInfo(jobConf.getJobName(), jobConf.getUser(), hasCombiner, numReduces,
            props);
}

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From source file:org.apache.ignite.internal.processors.hadoop.HadoopUtils.java

License:Apache License

/**
 * Creates JobInfo from hadoop configuration.
 *
 * @param cfg Hadoop configuration.//from w  w  w.ja v  a2 s.co  m
 * @return Job info.
 * @throws IgniteCheckedException If failed.
 */
public static HadoopDefaultJobInfo createJobInfo(Configuration cfg) throws IgniteCheckedException {
    JobConf jobConf = new JobConf(cfg);

    boolean hasCombiner = jobConf.get("mapred.combiner.class") != null
            || jobConf.get(MRJobConfig.COMBINE_CLASS_ATTR) != null;

    int numReduces = jobConf.getNumReduceTasks();

    jobConf.setBooleanIfUnset("mapred.mapper.new-api", jobConf.get(OLD_MAP_CLASS_ATTR) == null);

    if (jobConf.getUseNewMapper()) {
        String mode = "new map API";

        ensureNotSet(jobConf, "mapred.input.format.class", mode);
        ensureNotSet(jobConf, OLD_MAP_CLASS_ATTR, mode);

        if (numReduces != 0)
            ensureNotSet(jobConf, "mapred.partitioner.class", mode);
        else
            ensureNotSet(jobConf, "mapred.output.format.class", mode);
    } else {
        String mode = "map compatibility";

        ensureNotSet(jobConf, MRJobConfig.INPUT_FORMAT_CLASS_ATTR, mode);
        ensureNotSet(jobConf, MRJobConfig.MAP_CLASS_ATTR, mode);

        if (numReduces != 0)
            ensureNotSet(jobConf, MRJobConfig.PARTITIONER_CLASS_ATTR, mode);
        else
            ensureNotSet(jobConf, MRJobConfig.OUTPUT_FORMAT_CLASS_ATTR, mode);
    }

    if (numReduces != 0) {
        jobConf.setBooleanIfUnset("mapred.reducer.new-api", jobConf.get(OLD_REDUCE_CLASS_ATTR) == null);

        if (jobConf.getUseNewReducer()) {
            String mode = "new reduce API";

            ensureNotSet(jobConf, "mapred.output.format.class", mode);
            ensureNotSet(jobConf, OLD_REDUCE_CLASS_ATTR, mode);
        } else {
            String mode = "reduce compatibility";

            ensureNotSet(jobConf, MRJobConfig.OUTPUT_FORMAT_CLASS_ATTR, mode);
            ensureNotSet(jobConf, MRJobConfig.REDUCE_CLASS_ATTR, mode);
        }
    }

    Map<String, String> props = new HashMap<>();

    for (Map.Entry<String, String> entry : jobConf)
        props.put(entry.getKey(), entry.getValue());

    return new HadoopDefaultJobInfo(jobConf.getJobName(), jobConf.getUser(), hasCombiner, numReduces, props);
}

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From source file:org.apache.ignite.internal.processors.hadoop.impl.v2.HadoopV2TaskContext.java

License:Apache License

/**
 * @param taskInfo Task info.//from   ww w.  ja  v  a 2 s  . c o m
 * @param job Job.
 * @param jobId Job ID.
 * @param locNodeId Local node ID.
 * @param jobConfDataInput DataInput for read JobConf.
 */
public HadoopV2TaskContext(HadoopTaskInfo taskInfo, HadoopJobEx job, HadoopJobId jobId,
        @Nullable UUID locNodeId, DataInput jobConfDataInput) throws IgniteCheckedException {
    super(taskInfo, job);
    this.locNodeId = locNodeId;

    // Before create JobConf instance we should set new context class loader.
    ClassLoader oldLdr = HadoopCommonUtils.setContextClassLoader(getClass().getClassLoader());

    try {
        JobConf jobConf = new JobConf();

        try {
            jobConf.readFields(jobConfDataInput);
        } catch (IOException e) {
            throw new IgniteCheckedException(e);
        }

        // For map-reduce jobs prefer local writes.
        jobConf.setBooleanIfUnset(PARAM_IGFS_PREFER_LOCAL_WRITES, true);

        initializePartiallyRawComparator(jobConf);

        jobCtx = new JobContextImpl(jobConf, new JobID(jobId.globalId().toString(), jobId.localId()));

        useNewMapper = jobConf.getUseNewMapper();
        useNewReducer = jobConf.getUseNewReducer();
        useNewCombiner = jobConf.getCombinerClass() == null;
    } finally {
        HadoopCommonUtils.restoreContextClassLoader(oldLdr);
    }
}

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From source file:org.apache.ignite.internal.processors.hadoop.v2.GridHadoopV2TaskContext.java

License:Apache License

/**
 * @param taskInfo Task info./*from   www  .ja  v a  2  s  . c o  m*/
 * @param job Job.
 * @param jobId Job ID.
 * @param locNodeId Local node ID.
 * @param jobConfDataInput DataInput for read JobConf.
 */
public GridHadoopV2TaskContext(GridHadoopTaskInfo taskInfo, GridHadoopJob job, GridHadoopJobId jobId,
        @Nullable UUID locNodeId, DataInput jobConfDataInput) throws IgniteCheckedException {
    super(taskInfo, job);
    this.locNodeId = locNodeId;

    // Before create JobConf instance we should set new context class loader.
    Thread.currentThread().setContextClassLoader(getClass().getClassLoader());

    try {
        JobConf jobConf = new JobConf();

        try {
            jobConf.readFields(jobConfDataInput);
        } catch (IOException e) {
            throw new IgniteCheckedException(e);
        }

        // For map-reduce jobs prefer local writes.
        jobConf.setBooleanIfUnset(PARAM_IGFS_PREFER_LOCAL_WRITES, true);

        jobCtx = new JobContextImpl(jobConf, new JobID(jobId.globalId().toString(), jobId.localId()));

        useNewMapper = jobConf.getUseNewMapper();
        useNewReducer = jobConf.getUseNewReducer();
        useNewCombiner = jobConf.getCombinerClass() == null;
    } finally {
        Thread.currentThread().setContextClassLoader(null);
    }
}

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From source file:org.apache.ignite.internal.processors.hadoop.v2.HadoopV2TaskContext.java

License:Apache License

/**
 * @param taskInfo Task info./*from   w ww  . j  a v  a  2 s  .c o m*/
 * @param job Job.
 * @param jobId Job ID.
 * @param locNodeId Local node ID.
 * @param jobConfDataInput DataInput for read JobConf.
 */
public HadoopV2TaskContext(HadoopTaskInfo taskInfo, HadoopJob job, HadoopJobId jobId, @Nullable UUID locNodeId,
        DataInput jobConfDataInput) throws IgniteCheckedException {
    super(taskInfo, job);
    this.locNodeId = locNodeId;

    // Before create JobConf instance we should set new context class loader.
    Thread.currentThread().setContextClassLoader(getClass().getClassLoader());

    try {
        JobConf jobConf = new JobConf();

        try {
            jobConf.readFields(jobConfDataInput);
        } catch (IOException e) {
            throw new IgniteCheckedException(e);
        }

        // For map-reduce jobs prefer local writes.
        jobConf.setBooleanIfUnset(PARAM_IGFS_PREFER_LOCAL_WRITES, true);

        jobCtx = new JobContextImpl(jobConf, new JobID(jobId.globalId().toString(), jobId.localId()));

        useNewMapper = jobConf.getUseNewMapper();
        useNewReducer = jobConf.getUseNewReducer();
        useNewCombiner = jobConf.getCombinerClass() == null;
    } finally {
        Thread.currentThread().setContextClassLoader(null);
    }
}

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From source file:org.gridgain.grid.kernal.processors.hadoop.GridHadoopUtils.java

License:Open Source License

/**
 * Creates JobInfo from hadoop configuration.
 *
 * @param cfg Hadoop configuration./*from   w  w  w . jav a  2 s . c  o m*/
 * @return Job info.
 * @throws GridException If failed.
 */
public static GridHadoopDefaultJobInfo createJobInfo(Configuration cfg) throws GridException {
    JobConf jobConf = new JobConf(cfg);

    boolean hasCombiner = jobConf.get("mapred.combiner.class") != null
            || jobConf.get(MRJobConfig.COMBINE_CLASS_ATTR) != null;

    int numReduces = jobConf.getNumReduceTasks();

    jobConf.setBooleanIfUnset("mapred.mapper.new-api", jobConf.get(OLD_MAP_CLASS_ATTR) == null);

    if (jobConf.getUseNewMapper()) {
        String mode = "new map API";

        ensureNotSet(jobConf, "mapred.input.format.class", mode);
        ensureNotSet(jobConf, OLD_MAP_CLASS_ATTR, mode);

        if (numReduces != 0)
            ensureNotSet(jobConf, "mapred.partitioner.class", mode);
        else
            ensureNotSet(jobConf, "mapred.output.format.class", mode);
    } else {
        String mode = "map compatibility";

        ensureNotSet(jobConf, MRJobConfig.INPUT_FORMAT_CLASS_ATTR, mode);
        ensureNotSet(jobConf, MRJobConfig.MAP_CLASS_ATTR, mode);

        if (numReduces != 0)
            ensureNotSet(jobConf, MRJobConfig.PARTITIONER_CLASS_ATTR, mode);
        else
            ensureNotSet(jobConf, MRJobConfig.OUTPUT_FORMAT_CLASS_ATTR, mode);
    }

    if (numReduces != 0) {
        jobConf.setBooleanIfUnset("mapred.reducer.new-api", jobConf.get(OLD_REDUCE_CLASS_ATTR) == null);

        if (jobConf.getUseNewReducer()) {
            String mode = "new reduce API";

            ensureNotSet(jobConf, "mapred.output.format.class", mode);
            ensureNotSet(jobConf, OLD_REDUCE_CLASS_ATTR, mode);
        } else {
            String mode = "reduce compatibility";

            ensureNotSet(jobConf, MRJobConfig.OUTPUT_FORMAT_CLASS_ATTR, mode);
            ensureNotSet(jobConf, MRJobConfig.REDUCE_CLASS_ATTR, mode);
        }
    }

    Map<String, String> props = new HashMap<>();

    for (Map.Entry<String, String> entry : jobConf)
        props.put(entry.getKey(), entry.getValue());

    return new GridHadoopDefaultJobInfo(jobConf.getJobName(), jobConf.getUser(), hasCombiner, numReduces,
            props);
}

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From source file:org.gridgain.grid.kernal.processors.hadoop.v2.GridHadoopV2TaskContext.java

License:Open Source License

/**
 * @param taskInfo Task info./*from   w  w w  .  j ava  2s  . c  o m*/
 * @param job Job.
 * @param jobId Job ID.
 * @param locNodeId Local node ID.
 * @param jobConfDataInput DataInput for read JobConf.
 */
public GridHadoopV2TaskContext(GridHadoopTaskInfo taskInfo, GridHadoopJob job, GridHadoopJobId jobId,
        @Nullable UUID locNodeId, DataInput jobConfDataInput) throws GridException {
    super(taskInfo, job);
    this.locNodeId = locNodeId;

    // Before create JobConf instance we should set new context class loader.
    Thread.currentThread().setContextClassLoader(getClass().getClassLoader());

    try {
        JobConf jobConf = new JobConf();

        try {
            jobConf.readFields(jobConfDataInput);
        } catch (IOException e) {
            throw new GridException(e);
        }

        // For map-reduce jobs prefer local writes.
        jobConf.setBooleanIfUnset(PARAM_GGFS_PREFER_LOCAL_WRITES, true);

        jobCtx = new JobContextImpl(jobConf, new JobID(jobId.globalId().toString(), jobId.localId()));

        useNewMapper = jobConf.getUseNewMapper();
        useNewReducer = jobConf.getUseNewReducer();
        useNewCombiner = jobConf.getCombinerClass() == null;
    } finally {
        Thread.currentThread().setContextClassLoader(null);
    }
}

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