JobTrackerMXBean (Hadoop 1.2.1 API)
Date: 2013-07-22

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## org.apache.hadoop.mapred
Interface JobTrackerMXBean

All Known Implementing Classes:
  JobTracker

    public interface JobTrackerMXBean

The MXBean interface for JobTrackerInfo

Method Summary
`String` | `getAliveNodesInfoJson()`
`String` | `getBlacklistedNodesInfoJson()`
`String` | `getConfigVersion()`
`String` | `getGraylistedNodesInfoJson()`
`String` | `getHostname()`
`String` | `getQueueInfoJson()`
`String` | `getSummaryJson()`
`int` | `getThreadCount()`
`String` | `getVersion()`

Method Detail

### getHostname

    String getHostname()

  Returns:
    hostname of the jobtracker

### getVersion

    String getVersion()

  Returns:
    version of the code base

### getConfigVersion

    String getConfigVersion()

  Returns:
    the config version (from a config property)

### getThreadCount

    int getThreadCount()

  Returns:
    number of threads of the jobtracker jvm

### getSummaryJson

    String getSummaryJson()

  Returns:
    the summary info in json

### getAliveNodesInfoJson

    String getAliveNodesInfoJson()

  Returns:
    the alive nodes info in json

### getBlacklistedNodesInfoJson

    String getBlacklistedNodesInfoJson()

  Returns:
    the blacklisted nodes info in json

### getGraylistedNodesInfoJson

    String getGraylistedNodesInfoJson()

  Returns:
    the graylisted nodes info in json

### getQueueInfoJson

    String getQueueInfoJson()

  Returns:
    the queue info json

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