Uses of Class
org.apache.hadoop.mapred.JobConf

Packages that use JobConf

Package	Description
org.apache.hadoop.mapred
org.apache.hadoop.mapred.jobcontrol
org.apache.hadoop.mapred.join
org.apache.hadoop.mapred.lib
org.apache.hadoop.mapred.lib.aggregate
org.apache.hadoop.mapred.lib.db
org.apache.hadoop.mapred.pipes

Uses of JobConf in org.apache.hadoop.mapred

Methods in org.apache.hadoop.mapred that return JobConf

Modifier and Type	Method and Description
JobConf	JobContext.getJobConf() Get the job Configuration
JobConf	TaskAttemptContext.getJobConf()

Methods in org.apache.hadoop.mapred with parameters of type JobConf

Modifier and Type	Method and Description
static void	FileInputFormat.addInputPath(JobConf conf, Path path) Add a Path to the list of inputs for the map-reduce job.
static void	FileInputFormat.addInputPaths(JobConf conf, String commaSeparatedPaths) Add the given comma separated paths to the list of inputs for the map-reduce job.
void	FileOutputFormat.checkOutputSpecs(FileSystem ignored, JobConf job)
void	SequenceFileAsBinaryOutputFormat.checkOutputSpecs(FileSystem ignored, JobConf job)
void	OutputFormat.checkOutputSpecs(FileSystem ignored, JobConf job) Check for validity of the output-specification for the job.
void	MapReduceBase.configure(JobConf job) Default implementation that does nothing.
void	JobConfigurable.configure(JobConf job) Initializes a new instance from a JobConf.
void	KeyValueTextInputFormat.configure(JobConf conf)
void	MapRunner.configure(JobConf job)
void	FixedLengthInputFormat.configure(JobConf conf)
void	TextInputFormat.configure(JobConf conf)
static boolean	FileOutputFormat.getCompressOutput(JobConf conf) Is the job output compressed?
static PathFilter	FileInputFormat.getInputPathFilter(JobConf conf) Get a PathFilter instance of the filter set for the input paths.
static Path[]	FileInputFormat.getInputPaths(JobConf conf) Get the list of input Paths for the map-reduce job.
static org.apache.hadoop.io.SequenceFile.CompressionType	SequenceFileOutputFormat.getOutputCompressionType(JobConf conf) Get the SequenceFile.CompressionType for the output SequenceFile.
static Class<? extends CompressionCodec>	FileOutputFormat.getOutputCompressorClass(JobConf conf, Class<? extends CompressionCodec> defaultValue) Get the CompressionCodec for compressing the job outputs.
static Path	FileOutputFormat.getOutputPath(JobConf conf) Get the Path to the output directory for the map-reduce job.
static Path	FileOutputFormat.getPathForCustomFile(JobConf conf, String name) Helper function to generate a Path for a file that is unique for the task within the job output directory.
RecordReader<Text,Text>	SequenceFileAsTextInputFormat.getRecordReader(InputSplit split, JobConf job, Reporter reporter)
abstract RecordReader<K,V>	MultiFileInputFormat.getRecordReader(InputSplit split, JobConf job, Reporter reporter)
RecordReader<K,V>	SequenceFileInputFilter.getRecordReader(InputSplit split, JobConf job, Reporter reporter) Create a record reader for the given split
RecordReader<Text,Text>	KeyValueTextInputFormat.getRecordReader(InputSplit genericSplit, JobConf job, Reporter reporter)
RecordReader<K,V>	SequenceFileInputFormat.getRecordReader(InputSplit split, JobConf job, Reporter reporter)
RecordReader<K,V>	InputFormat.getRecordReader(InputSplit split, JobConf job, Reporter reporter) Get the RecordReader for the given InputSplit.
RecordReader<LongWritable,BytesWritable>	FixedLengthInputFormat.getRecordReader(InputSplit genericSplit, JobConf job, Reporter reporter)
RecordReader<LongWritable,Text>	TextInputFormat.getRecordReader(InputSplit genericSplit, JobConf job, Reporter reporter)
abstract RecordReader<K,V>	FileInputFormat.getRecordReader(InputSplit split, JobConf job, Reporter reporter)
RecordReader<BytesWritable,BytesWritable>	SequenceFileAsBinaryInputFormat.getRecordReader(InputSplit split, JobConf job, Reporter reporter)
RecordWriter<WritableComparable,Writable>	MapFileOutputFormat.getRecordWriter(FileSystem ignored, JobConf job, String name, Progressable progress)
abstract RecordWriter<K,V>	FileOutputFormat.getRecordWriter(FileSystem ignored, JobConf job, String name, Progressable progress)
RecordWriter<K,V>	SequenceFileOutputFormat.getRecordWriter(FileSystem ignored, JobConf job, String name, Progressable progress)
RecordWriter<BytesWritable,BytesWritable>	SequenceFileAsBinaryOutputFormat.getRecordWriter(FileSystem ignored, JobConf job, String name, Progressable progress)
RecordWriter<K,V>	OutputFormat.getRecordWriter(FileSystem ignored, JobConf job, String name, Progressable progress) Get the RecordWriter for the given job.
RecordWriter<K,V>	TextOutputFormat.getRecordWriter(FileSystem ignored, JobConf job, String name, Progressable progress)
static Class<? extends WritableComparable>	SequenceFileAsBinaryOutputFormat.getSequenceFileOutputKeyClass(JobConf conf) Get the key class for the SequenceFile
static Class<? extends Writable>	SequenceFileAsBinaryOutputFormat.getSequenceFileOutputValueClass(JobConf conf) Get the value class for the SequenceFile
InputSplit[]	MultiFileInputFormat.getSplits(JobConf job, int numSplits)
InputSplit[]	InputFormat.getSplits(JobConf job, int numSplits) Logically split the set of input files for the job.
InputSplit[]	FileInputFormat.getSplits(JobConf job, int numSplits) Splits files returned by FileInputFormat.listStatus(JobConf) when they're too big.
static org.apache.hadoop.mapred.JobClient.TaskStatusFilter	JobClient.getTaskOutputFilter(JobConf job) Get the task output filter out of the JobConf.
static Path	FileOutputFormat.getTaskOutputPath(JobConf conf, String name) Helper function to create the task's temporary output directory and return the path to the task's output file.
static String	FileOutputFormat.getUniqueName(JobConf conf, String name) Helper function to generate a name that is unique for the task.
static Path	FileOutputFormat.getWorkOutputPath(JobConf conf) Get the Path to the task's temporary output directory for the map-reduce job Tasks' Side-Effect Files
void	JobClient.init(JobConf conf) Connect to the default cluster
protected FileStatus[]	SequenceFileInputFormat.listStatus(JobConf job)
protected FileStatus[]	FileInputFormat.listStatus(JobConf job) List input directories.
boolean	JobClient.monitorAndPrintJob(JobConf conf, RunningJob job) Monitor a job and print status in real-time as progress is made and tasks fail.
static RunningJob	JobClient.runJob(JobConf job) Utility that submits a job, then polls for progress until the job is complete.
static void	FileOutputFormat.setCompressOutput(JobConf conf, boolean compress) Set whether the output of the job is compressed.
static void	FileInputFormat.setInputPathFilter(JobConf conf, Class<? extends PathFilter> filter) Set a PathFilter to be applied to the input paths for the map-reduce job.
static void	FileInputFormat.setInputPaths(JobConf conf, Path... inputPaths) Set the array of Paths as the list of inputs for the map-reduce job.
static void	FileInputFormat.setInputPaths(JobConf conf, String commaSeparatedPaths) Sets the given comma separated paths as the list of inputs for the map-reduce job.
static void	SequenceFileOutputFormat.setOutputCompressionType(JobConf conf, org.apache.hadoop.io.SequenceFile.CompressionType style) Set the SequenceFile.CompressionType for the output SequenceFile.
static void	FileOutputFormat.setOutputCompressorClass(JobConf conf, Class<? extends CompressionCodec> codecClass) Set the CompressionCodec to be used to compress job outputs.
static void	FileOutputFormat.setOutputPath(JobConf conf, Path outputDir) Set the Path of the output directory for the map-reduce job.
static void	SequenceFileAsBinaryOutputFormat.setSequenceFileOutputKeyClass(JobConf conf, Class<?> theClass) Set the key class for the SequenceFile
static void	SequenceFileAsBinaryOutputFormat.setSequenceFileOutputValueClass(JobConf conf, Class<?> theClass) Set the value class for the SequenceFile
static void	SkipBadRecords.setSkipOutputPath(JobConf conf, Path path) Set the directory to which skipped records are written.
static void	JobClient.setTaskOutputFilter(JobConf job, org.apache.hadoop.mapred.JobClient.TaskStatusFilter newValue) Modify the JobConf to set the task output filter.
RunningJob	JobClient.submitJob(JobConf conf) Submit a job to the MR system.

Constructors in org.apache.hadoop.mapred with parameters of type JobConf

Constructor and Description
FileSplit(Path file, long start, long length, JobConf conf) Deprecated.
JobClient(JobConf conf) Build a job client with the given JobConf, and connect to the default cluster
MultiFileSplit(JobConf job, Path[] files, long[] lengths)

Uses of JobConf in org.apache.hadoop.mapred.jobcontrol

Methods in org.apache.hadoop.mapred.jobcontrol that return JobConf

Modifier and Type	Method and Description
JobConf	Job.getJobConf()

Methods in org.apache.hadoop.mapred.jobcontrol with parameters of type JobConf

Modifier and Type	Method and Description
void	Job.setJobConf(JobConf jobConf) Set the mapred job conf for this job.

Constructors in org.apache.hadoop.mapred.jobcontrol with parameters of type JobConf

Constructor and Description
Job(JobConf conf)
Job(JobConf jobConf, ArrayList<?> dependingJobs) Construct a job.

Uses of JobConf in org.apache.hadoop.mapred.join

Methods in org.apache.hadoop.mapred.join with parameters of type JobConf

Modifier and Type	Method and Description
ComposableRecordReader<K,TupleWritable>	CompositeInputFormat.getRecordReader(InputSplit split, JobConf job, Reporter reporter) Construct a CompositeRecordReader for the children of this InputFormat as defined in the init expression.
ComposableRecordReader<K,V>	ComposableInputFormat.getRecordReader(InputSplit split, JobConf job, Reporter reporter)
InputSplit[]	CompositeInputFormat.getSplits(JobConf job, int numSplits) Build a CompositeInputSplit from the child InputFormats by assigning the ith split from each child to the ith composite split.
void	CompositeInputFormat.setFormat(JobConf job) Interpret a given string as a composite expression.

Constructors in org.apache.hadoop.mapred.join with parameters of type JobConf

Constructor and Description
JoinRecordReader(int id, JobConf conf, int capacity, Class<? extends WritableComparator> cmpcl)
MultiFilterRecordReader(int id, JobConf conf, int capacity, Class<? extends WritableComparator> cmpcl)

Uses of JobConf in org.apache.hadoop.mapred.lib

Fields in org.apache.hadoop.mapred.lib declared as JobConf

Modifier and Type	Field and Description
protected JobConf	CombineFileRecordReader.jc

Methods in org.apache.hadoop.mapred.lib that return JobConf

Modifier and Type	Method and Description
JobConf	CombineFileSplit.getJob()

Methods in org.apache.hadoop.mapred.lib with parameters of type JobConf

Modifier and Type	Method and Description
static void	MultipleInputs.addInputPath(JobConf conf, Path path, Class<? extends InputFormat> inputFormatClass) Add a Path with a custom InputFormat to the list of inputs for the map-reduce job.
static void	MultipleInputs.addInputPath(JobConf conf, Path path, Class<? extends InputFormat> inputFormatClass, Class<? extends Mapper> mapperClass) Add a Path with a custom InputFormat and Mapper to the list of inputs for the map-reduce job.
static <K1,V1,K2,V2> void	ChainReducer.addMapper(JobConf job, Class<? extends Mapper<K1,V1,K2,V2>> klass, Class<? extends K1> inputKeyClass, Class<? extends V1> inputValueClass, Class<? extends K2> outputKeyClass, Class<? extends V2> outputValueClass, boolean byValue, JobConf mapperConf) Adds a Mapper class to the chain job's JobConf.
static <K1,V1,K2,V2> void	ChainMapper.addMapper(JobConf job, Class<? extends Mapper<K1,V1,K2,V2>> klass, Class<? extends K1> inputKeyClass, Class<? extends V1> inputValueClass, Class<? extends K2> outputKeyClass, Class<? extends V2> outputValueClass, boolean byValue, JobConf mapperConf) Adds a Mapper class to the chain job's JobConf.
static void	MultipleOutputs.addMultiNamedOutput(JobConf conf, String namedOutput, Class<? extends OutputFormat> outputFormatClass, Class<?> keyClass, Class<?> valueClass) Adds a multi named output for the job.
static void	MultipleOutputs.addNamedOutput(JobConf conf, String namedOutput, Class<? extends OutputFormat> outputFormatClass, Class<?> keyClass, Class<?> valueClass) Adds a named output for the job.
void	LazyOutputFormat.checkOutputSpecs(FileSystem ignored, JobConf job)
void	FilterOutputFormat.checkOutputSpecs(FileSystem ignored, JobConf job)
void	NullOutputFormat.checkOutputSpecs(FileSystem ignored, JobConf job)
void	ChainReducer.configure(JobConf job) Configures the ChainReducer, the Reducer and all the Mappers in the chain.
void	BinaryPartitioner.configure(JobConf job)
void	FieldSelectionMapReduce.configure(JobConf job)
void	HashPartitioner.configure(JobConf job)
void	KeyFieldBasedComparator.configure(JobConf job)
void	RegexMapper.configure(JobConf job)
void	TotalOrderPartitioner.configure(JobConf job)
void	KeyFieldBasedPartitioner.configure(JobConf job)
void	ChainMapper.configure(JobConf job) Configures the ChainMapper and all the Mappers in the chain.
void	NLineInputFormat.configure(JobConf conf)
void	MultithreadedMapRunner.configure(JobConf jobConf)
protected void	CombineFileInputFormat.createPool(JobConf conf, List<PathFilter> filters) Deprecated. Use CombineFileInputFormat.createPool(List).
protected void	CombineFileInputFormat.createPool(JobConf conf, PathFilter... filters) Deprecated. Use CombineFileInputFormat.createPool(PathFilter...).
protected abstract RecordWriter<K,V>	MultipleOutputFormat.getBaseRecordWriter(FileSystem fs, JobConf job, String name, Progressable arg3)
protected RecordWriter<K,V>	MultipleSequenceFileOutputFormat.getBaseRecordWriter(FileSystem fs, JobConf job, String name, Progressable arg3)
protected RecordWriter<K,V>	MultipleTextOutputFormat.getBaseRecordWriter(FileSystem fs, JobConf job, String name, Progressable arg3)
static boolean	MultipleOutputs.getCountersEnabled(JobConf conf) Returns if the counters for the named outputs are enabled or not.
protected String	MultipleOutputFormat.getInputFileBasedOutputFileName(JobConf job, String name) Generate the outfile name based on a given anme and the input file name.
static Class<? extends OutputFormat>	MultipleOutputs.getNamedOutputFormatClass(JobConf conf, String namedOutput) Returns the named output OutputFormat.
static Class<?>	MultipleOutputs.getNamedOutputKeyClass(JobConf conf, String namedOutput) Returns the key class for a named output.
static List<String>	MultipleOutputs.getNamedOutputsList(JobConf conf) Returns list of channel names.
static Class<?>	MultipleOutputs.getNamedOutputValueClass(JobConf conf, String namedOutput) Returns the value class for a named output.
static String	TotalOrderPartitioner.getPartitionFile(JobConf job) Deprecated. Use TotalOrderPartitioner.getPartitionFile(Configuration) instead
abstract RecordReader<K,V>	CombineFileInputFormat.getRecordReader(InputSplit split, JobConf job, Reporter reporter) This is not implemented yet.
RecordReader<LongWritable,Text>	CombineTextInputFormat.getRecordReader(InputSplit split, JobConf conf, Reporter reporter)
RecordReader<K,V>	CombineSequenceFileInputFormat.getRecordReader(InputSplit split, JobConf conf, Reporter reporter)
RecordReader<LongWritable,Text>	NLineInputFormat.getRecordReader(InputSplit genericSplit, JobConf job, Reporter reporter)
RecordWriter<K,V>	LazyOutputFormat.getRecordWriter(FileSystem ignored, JobConf job, String name, Progressable progress)
RecordWriter<K,V>	FilterOutputFormat.getRecordWriter(FileSystem ignored, JobConf job, String name, Progressable progress)
RecordWriter<K,V>	NullOutputFormat.getRecordWriter(FileSystem ignored, JobConf job, String name, Progressable progress)
RecordWriter<K,V>	MultipleOutputFormat.getRecordWriter(FileSystem fs, JobConf job, String name, Progressable arg3) Create a composite record writer that can write key/value data to different output files
InputSplit[]	CombineFileInputFormat.getSplits(JobConf job, int numSplits)
InputSplit[]	NLineInputFormat.getSplits(JobConf job, int numSplits) Logically splits the set of input files for the job, splits N lines of the input as one split.
static boolean	MultipleOutputs.isMultiNamedOutput(JobConf conf, String namedOutput) Returns if a named output is multiple.
protected FileStatus[]	CombineFileInputFormat.listStatus(JobConf job) List input directories.
static void	MultipleOutputs.setCountersEnabled(JobConf conf, boolean enabled) Enables or disables counters for the named outputs.
static void	LazyOutputFormat.setOutputFormatClass(JobConf job, Class<? extends OutputFormat> theClass) Set the underlying output format for LazyOutputFormat.
static void	TotalOrderPartitioner.setPartitionFile(JobConf job, Path p) Deprecated. Use TotalOrderPartitioner.setPartitionFile(Configuration, Path) instead
static <K1,V1,K2,V2> void	ChainReducer.setReducer(JobConf job, Class<? extends Reducer<K1,V1,K2,V2>> klass, Class<? extends K1> inputKeyClass, Class<? extends V1> inputValueClass, Class<? extends K2> outputKeyClass, Class<? extends V2> outputValueClass, boolean byValue, JobConf reducerConf) Sets the Reducer class to the chain job's JobConf.
static <K,V> void	InputSampler.writePartitionFile(JobConf job, org.apache.hadoop.mapred.lib.InputSampler.Sampler<K,V> sampler)

Constructors in org.apache.hadoop.mapred.lib with parameters of type JobConf

Constructor and Description
CombineFileRecordReader(JobConf job, CombineFileSplit split, Reporter reporter, Class<RecordReader<K,V>> rrClass) A generic RecordReader that can hand out different recordReaders for each chunk in the CombineFileSplit.
CombineFileSplit(JobConf job, Path[] files, long[] lengths)
CombineFileSplit(JobConf job, Path[] files, long[] start, long[] lengths, String[] locations)
InputSampler(JobConf conf)
MultipleOutputs(JobConf job) Creates and initializes multiple named outputs support, it should be instantiated in the Mapper/Reducer configure method.

Uses of JobConf in org.apache.hadoop.mapred.lib.aggregate

Methods in org.apache.hadoop.mapred.lib.aggregate that return JobConf

Modifier and Type	Method and Description
static JobConf	ValueAggregatorJob.createValueAggregatorJob(String[] args) Create an Aggregate based map/reduce job.
static JobConf	ValueAggregatorJob.createValueAggregatorJob(String[] args, Class<?> caller) Create an Aggregate based map/reduce job.
static JobConf	ValueAggregatorJob.createValueAggregatorJob(String[] args, Class<? extends ValueAggregatorDescriptor>[] descriptors)
static JobConf	ValueAggregatorJob.createValueAggregatorJob(String[] args, Class<? extends ValueAggregatorDescriptor>[] descriptors, Class<?> caller)

Methods in org.apache.hadoop.mapred.lib.aggregate with parameters of type JobConf

Modifier and Type	Method and Description
void	ValueAggregatorDescriptor.configure(JobConf job) Configure the object
void	ValueAggregatorJobBase.configure(JobConf job)
void	UserDefinedValueAggregatorDescriptor.configure(JobConf job) Do nothing.
void	ValueAggregatorBaseDescriptor.configure(JobConf job) get the input file name.
void	ValueAggregatorCombiner.configure(JobConf job) Combiner does not need to configure.
static void	ValueAggregatorJob.setAggregatorDescriptors(JobConf job, Class<? extends ValueAggregatorDescriptor>[] descriptors)

Constructors in org.apache.hadoop.mapred.lib.aggregate with parameters of type JobConf

Constructor and Description
UserDefinedValueAggregatorDescriptor(String className, JobConf job)

Uses of JobConf in org.apache.hadoop.mapred.lib.db

Methods in org.apache.hadoop.mapred.lib.db with parameters of type JobConf

Modifier and Type	Method and Description
void	DBOutputFormat.checkOutputSpecs(FileSystem filesystem, JobConf job) Check for validity of the output-specification for the job.
void	DBInputFormat.configure(JobConf job) Initializes a new instance from a JobConf.
static void	DBConfiguration.configureDB(JobConf job, String driverClass, String dbUrl) Sets the DB access related fields in the JobConf.
static void	DBConfiguration.configureDB(JobConf job, String driverClass, String dbUrl, String userName, String passwd) Sets the DB access related fields in the JobConf.
RecordReader<LongWritable,T>	DBInputFormat.getRecordReader(InputSplit split, JobConf job, Reporter reporter) Get the RecordReader for the given InputSplit.
RecordWriter<K,V>	DBOutputFormat.getRecordWriter(FileSystem filesystem, JobConf job, String name, Progressable progress) Get the RecordWriter for the given job.
InputSplit[]	DBInputFormat.getSplits(JobConf job, int chunks) Logically split the set of input files for the job.
static void	DBInputFormat.setInput(JobConf job, Class<? extends DBWritable> inputClass, String inputQuery, String inputCountQuery) Initializes the map-part of the job with the appropriate input settings.
static void	DBInputFormat.setInput(JobConf job, Class<? extends DBWritable> inputClass, String tableName, String conditions, String orderBy, String... fieldNames) Initializes the map-part of the job with the appropriate input settings.
static void	DBOutputFormat.setOutput(JobConf job, String tableName, int fieldCount) Initializes the reduce-part of the job with the appropriate output settings
static void	DBOutputFormat.setOutput(JobConf job, String tableName, String... fieldNames) Initializes the reduce-part of the job with the appropriate output settings

Uses of JobConf in org.apache.hadoop.mapred.pipes

Methods in org.apache.hadoop.mapred.pipes with parameters of type JobConf

Modifier and Type	Method and Description
static String	Submitter.getExecutable(JobConf conf) Get the URI of the application's executable.
static boolean	Submitter.getIsJavaMapper(JobConf conf) Check whether the job is using a Java Mapper.
static boolean	Submitter.getIsJavaRecordReader(JobConf conf) Check whether the job is using a Java RecordReader
static boolean	Submitter.getIsJavaRecordWriter(JobConf conf) Will the reduce use a Java RecordWriter?
static boolean	Submitter.getIsJavaReducer(JobConf conf) Check whether the job is using a Java Reducer.
static boolean	Submitter.getKeepCommandFile(JobConf conf) Does the user want to keep the command file for debugging? If this is true, pipes will write a copy of the command data to a file in the task directory named "downlink.data", which may be used to run the C++ program under the debugger.
static RunningJob	Submitter.jobSubmit(JobConf conf) Submit a job to the Map-Reduce framework.
static RunningJob	Submitter.runJob(JobConf conf) Submit a job to the map/reduce cluster.
static void	Submitter.setExecutable(JobConf conf, String executable) Set the URI for the application's executable.
static void	Submitter.setIsJavaMapper(JobConf conf, boolean value) Set whether the Mapper is written in Java.
static void	Submitter.setIsJavaRecordReader(JobConf conf, boolean value) Set whether the job is using a Java RecordReader.
static void	Submitter.setIsJavaRecordWriter(JobConf conf, boolean value) Set whether the job will use a Java RecordWriter.
static void	Submitter.setIsJavaReducer(JobConf conf, boolean value) Set whether the Reducer is written in Java.
static void	Submitter.setKeepCommandFile(JobConf conf, boolean keep) Set whether to keep the command file for debugging
static RunningJob	Submitter.submitJob(JobConf conf) Deprecated. Use Submitter.runJob(JobConf)