org.apache.hadoop.mapred
Class JobStatus

java.lang.Object
  org.apache.hadoop.mapred.JobStatus

All Implemented Interfaces:

Writable

public class JobStatus
extends Object
implements Writable

Describes the current status of a job. This is not intended to be a comprehensive piece of data. For that, look at JobProfile.

Field Summary

static int	FAILED
static int	PREP
static int	RUNNING
static int	SUCCEEDED

Constructor Summary

JobStatus()

JobStatus(String jobid, float mapProgress, float reduceProgress, int runState)
Create a job status object for a given jobid.

Method Summary

String	getJobId()
int	getRunState()
long	getStartTime()
String	getUsername()
float	mapProgress()
void	readFields(DataInput in) Reads the fields of this object from in.
float	reduceProgress()
void	setRunState(int state) Change the current run state of the job.
void	write(DataOutput out) Writes the fields of this object to out.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

RUNNING

public static final int RUNNING

See Also:

Constant Field Values

SUCCEEDED

public static final int SUCCEEDED

See Also:

Constant Field Values

FAILED

public static final int FAILED

See Also:

Constant Field Values

PREP

public static final int PREP

See Also:

Constant Field Values

Constructor Detail

JobStatus

public JobStatus()

JobStatus

public JobStatus(String jobid,
                 float mapProgress,
                 float reduceProgress,
                 int runState)

Create a job status object for a given jobid.

Parameters:

jobid - The jobid of the job

mapProgress - The progress made on the maps

reduceProgress - The progress made on the reduces

runState - The current state of the job

Method Detail

getJobId

public String getJobId()

Returns:

The jobid of the Job

mapProgress

public float mapProgress()

Returns:

Percentage of progress in maps

reduceProgress

public float reduceProgress()

Returns:

Percentage of progress in reduce

getRunState

public int getRunState()

Returns:

running state of the job

setRunState

public void setRunState(int state)

Change the current run state of the job.

getStartTime

public long getStartTime()

Returns:

start time of the job

getUsername

public String getUsername()

Returns:

the username of the job

write

public void write(DataOutput out)
           throws IOException

Description copied from interface: Writable

Writes the fields of this object to out.

Specified by:

write in interface Writable

Throws:

IOException

readFields

public void readFields(DataInput in)
                throws IOException

Description copied from interface: Writable

Reads the fields of this object from in. For efficiency, implementations should attempt to re-use storage in the existing object where possible.

Specified by:

readFields in interface Writable

Throws:

IOException