org.apache.hadoop.mapred.ClusterStatus
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## Class org.apache.hadoop.mapred.`ClusterStatus`

Added Methods
`Collection` `getActiveTrackerNames`() | Get the names of task trackers in the cluster.
`Collection` `getBlacklistedTrackerNames`() | Get the names of task trackers in the cluster.
`int` `getBlacklistedTrackers`() | Get the number of blacklisted task trackers in the cluster.
`long` `getMaxMemory`() | Get the maximum configured heap memory that can be used by the `JobTracker`
`long` `getTTExpiryInterval`() | Get the tasktracker expiry interval for the cluster
`long` `getUsedMemory`() | Get the total heap memory used by the `JobTracker`

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