# Hierarchy For Package org.apache.hadoop.mapreduce.v2.hs

Package Hierarchies:

- All Packages

## Class Hierarchy

- java.lang.Object
  - org.apache.hadoop.service.AbstractService (implements org.apache.hadoop.service.Service)
    - org.apache.hadoop.mapreduce.v2.hs.CachedHistoryStorage (implements org.apache.hadoop.mapreduce.v2.hs.HistoryStorage)
    - org.apache.hadoop.service.CompositeService
      - org.apache.hadoop.mapreduce.v2.hs.JobHistoryServer
    - org.apache.hadoop.mapreduce.v2.hs.HistoryClientService
    - org.apache.hadoop.mapreduce.v2.hs.HistoryFileManager
    - org.apache.hadoop.mapreduce.v2.hs.HistoryServerStateStoreService
      - org.apache.hadoop.mapreduce.v2.hs.HistoryServerFileSystemStateStoreService
      - org.apache.hadoop.mapreduce.v2.hs.HistoryServerLeveldbStateStoreService
      - org.apache.hadoop.mapreduce.v2.hs.HistoryServerNullStateStoreService
    - org.apache.hadoop.mapreduce.v2.hs.JobHistory (implements org.apache.hadoop.mapreduce.v2.hs.HistoryContext)
  - org.apache.hadoop.mapreduce.v2.hs.CompletedJob (implements org.apache.hadoop.mapreduce.v2.app.job.Job)
  - org.apache.hadoop.mapreduce.v2.hs.CompletedTask (implements org.apache.hadoop.mapreduce.v2.app.job.Task)
  - org.apache.hadoop.mapreduce.v2.hs.CompletedTaskAttempt (implements org.apache.hadoop.mapreduce.v2.app.job.TaskAttempt)
  - org.apache.hadoop.mapreduce.v2.hs.HistoryFileManager.HistoryFileInfo
  - org.apache.hadoop.mapreduce.v2.hs.HistoryServerStateStoreService.HistoryServerState
  - org.apache.hadoop.mapreduce.v2.hs.HistoryServerStateStoreServiceFactory
  - org.apache.hadoop.mapreduce.v2.hs.HSAuditLogger
  - org.apache.hadoop.mapreduce.v2.hs.HSAuditLogger.AuditConstants
  - org.apache.hadoop.mapreduce.v2.hs.HSProxies
  - org.apache.hadoop.mapreduce.v2.hs.PartialJob (implements org.apache.hadoop.mapreduce.v2.app.job.Job)
  - org.apache.hadoop.security.token.SecretManager<T>
    - org.apache.hadoop.security.token.delegation.AbstractDelegationTokenSecretManager<TokenIdent>
      - org.apache.hadoop.mapreduce.v2.hs.JHSDelegationTokenSecretManager
  - org.apache.hadoop.mapreduce.v2.hs.UnparsedJob (implements org.apache.hadoop.mapreduce.v2.app.job.Job)

## Interface Hierarchy

- org.apache.hadoop.mapreduce.v2.app.AppContext
  - org.apache.hadoop.mapreduce.v2.hs.HistoryContext
- org.apache.hadoop.mapreduce.v2.hs.HistoryStorage

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