org.apache.hadoop.mapreduce.v2.app.job
Interface Job

All Known Implementing Classes:

JobImpl

public interface Job

Main interface to interact with the job. Provides only getters.

Method Summary

boolean	checkAccess(org.apache.hadoop.security.UserGroupInformation callerUGI, org.apache.hadoop.mapreduce.JobACL jobOperation)
org.apache.hadoop.mapreduce.Counters	getAllCounters() Get all the counters of this job.
List<org.apache.hadoop.mapreduce.v2.api.records.AMInfo>	getAMInfos()
int	getCompletedMaps()
int	getCompletedReduces()
org.apache.hadoop.fs.Path	getConfFile()
List<String>	getDiagnostics()
org.apache.hadoop.mapreduce.v2.api.records.JobId	getID()
Map<org.apache.hadoop.mapreduce.JobACL,org.apache.hadoop.security.authorize.AccessControlList>	getJobACLs()
org.apache.hadoop.mapred.TaskCompletionEvent[]	getMapAttemptCompletionEvents(int startIndex, int maxEvents)
String	getName()
float	getProgress()
String	getQueueName()
org.apache.hadoop.mapreduce.v2.api.records.JobReport	getReport()
org.apache.hadoop.mapreduce.v2.api.records.JobState	getState()
Task	getTask(org.apache.hadoop.mapreduce.v2.api.records.TaskId taskID)
org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptCompletionEvent[]	getTaskAttemptCompletionEvents(int fromEventId, int maxEvents)
Map<org.apache.hadoop.mapreduce.v2.api.records.TaskId,Task>	getTasks()
Map<org.apache.hadoop.mapreduce.v2.api.records.TaskId,Task>	getTasks(org.apache.hadoop.mapreduce.v2.api.records.TaskType taskType)
int	getTotalMaps()
int	getTotalReduces()
String	getUserName()
boolean	isUber()
org.apache.hadoop.conf.Configuration	loadConfFile()

Method Detail

getID

org.apache.hadoop.mapreduce.v2.api.records.JobId getID()

getName

String getName()

getState

org.apache.hadoop.mapreduce.v2.api.records.JobState getState()

getReport

org.apache.hadoop.mapreduce.v2.api.records.JobReport getReport()

getAllCounters

org.apache.hadoop.mapreduce.Counters getAllCounters()

Get all the counters of this job. This includes job-counters aggregated together with the counters of each task. This creates a clone of the Counters, so use this judiciously.

Returns:

job-counters and aggregate task-counters

getTasks

Map<org.apache.hadoop.mapreduce.v2.api.records.TaskId,Task> getTasks()

getTasks

Map<org.apache.hadoop.mapreduce.v2.api.records.TaskId,Task> getTasks(org.apache.hadoop.mapreduce.v2.api.records.TaskType taskType)

getTask

Task getTask(org.apache.hadoop.mapreduce.v2.api.records.TaskId taskID)

getDiagnostics

List<String> getDiagnostics()

getTotalMaps

int getTotalMaps()

getTotalReduces

int getTotalReduces()

getCompletedMaps

int getCompletedMaps()

getCompletedReduces

int getCompletedReduces()

getProgress

float getProgress()

isUber

boolean isUber()

getUserName

String getUserName()

getQueueName

String getQueueName()

getConfFile

org.apache.hadoop.fs.Path getConfFile()

Returns:

a path to where the config file for this job is located.

loadConfFile

org.apache.hadoop.conf.Configuration loadConfFile()
                                                  throws IOException

Returns:

a parsed version of the config files pointed to by getConfFile().

Throws:

IOException - on any error trying to load the conf file.

getJobACLs

Map<org.apache.hadoop.mapreduce.JobACL,org.apache.hadoop.security.authorize.AccessControlList> getJobACLs()

Returns:

the ACLs for this job for each type of JobACL given.

getTaskAttemptCompletionEvents

org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptCompletionEvent[] getTaskAttemptCompletionEvents(int fromEventId,
                                                                                                       int maxEvents)

getMapAttemptCompletionEvents

org.apache.hadoop.mapred.TaskCompletionEvent[] getMapAttemptCompletionEvents(int startIndex,
                                                                             int maxEvents)

getAMInfos

List<org.apache.hadoop.mapreduce.v2.api.records.AMInfo> getAMInfos()

Returns:

information for MR AppMasters (previously failed and current)

checkAccess

boolean checkAccess(org.apache.hadoop.security.UserGroupInformation callerUGI,
                    org.apache.hadoop.mapreduce.JobACL jobOperation)