Example usage for org.apache.hadoop.mapreduce TaskInputOutputContext getJobID

Introduction

In this page you can find the example usage for org.apache.hadoop.mapreduce TaskInputOutputContext getJobID.

Prototype

public JobID getJobID();

Source Link

Document

Get the unique ID for the job.

Usage

From source file:com.moz.fiji.mapreduce.util.SerializeLoggerAspect.java

License:Apache License

/**
 * Logic to write a profiling content for a single method signature to a file on HDFS.
 * The format of the file is as follows: Job Name, Job ID, Task Attempt, Function Signature,
 * Aggregate Time (nanoseconds), Number of Invocations, Time per call (nanoseconds)'\n'
 *
 * @param out The {@link OutputStreamWriter} for writing to the file.
 * @param context The {@link TaskInputOutputContext} for this job.
 * @param signature The method signature for the profile.
 * @param loggingInfo The profiling information for the method.
 * @throws IOException If the writes to HDFS fail.
 *//*w w w . j  a  v a  2 s. c o m*/
private void writeProfileInformation(OutputStreamWriter out, TaskInputOutputContext context, String signature,
        LoggingInfo loggingInfo) throws IOException {
    // ensure that files do not end up with x.yzE7 format for floats. Instead of 1.0E3, we want
    // 1000.000
    NumberFormat nf = NumberFormat.getInstance();
    nf.setGroupingUsed(false);
    nf.setMinimumFractionDigits(1);
    nf.setMaximumFractionDigits(3);

    out.write(context.getJobName() + ", " + context.getJobID() + ", " + context.getTaskAttemptID() + ", "
            + signature + ", " + loggingInfo.toString() + ", " + nf.format(loggingInfo.perCallTime()) + "\n");
}

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