Package org.apache.hadoop.mapreduce.v2.hs

Interface Summary

Interface	Description
HistoryContext
HistoryStorage	Provides an API to query jobs that have finished.

Class Summary

Class	Description
CachedHistoryStorage	Manages an in memory cache of parsed Job History files.
CompletedJob	Loads the basic job level data upfront.
CompletedTask
CompletedTaskAttempt
HistoryClientService	This module is responsible for talking to the JobClient (user facing).
HistoryFileManager	This class provides a way to interact with history files in a thread safe manor.
HistoryServerFileSystemStateStoreService
HistoryServerLeveldbStateStoreService
HistoryServerNullStateStoreService
HistoryServerStateStoreService
HistoryServerStateStoreService.HistoryServerState
HistoryServerStateStoreServiceFactory
HSAuditLogger
HSAuditLogger.AuditConstants
HSProxies
JHSDelegationTokenSecretManager	A MapReduce specific delegation token secret manager.
JobHistory	Loads and manages the Job history cache.
JobHistoryServer	JobHistoryServer is responsible for servicing all job history related requests from client.
PartialJob
UnparsedJob	A job that has too many tasks associated with it, of which we do not parse its job history file, to prevent the Job History Server from hanging on parsing the file.