DataNodeStatistics (Hadoop 0.18.1 API)

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org.apache.hadoop.dfs.datanode.metrics
Class DataNodeStatistics

java.lang.Object
  org.apache.hadoop.dfs.datanode.metrics.DataNodeStatistics

All Implemented Interfaces:: DataNodeStatisticsMBean

public class DataNodeStatistics
extends Object
implements DataNodeStatisticsMBean
extends Object
implements DataNodeStatisticsMBean

Method Summary
`long`	`getBlockReportsAverageTime()` Average time for Block Reports Operation in last interval
`long`	`getBlockReportsMaxTime()` The Maximum Block Reports Operation Time since reset was called
`long`	`getBlockReportsMinTime()` The Minimum Block Reports Operation Time since reset was called
`int`	`getBlockReportsNum()` Number of Block Reports sent in last interval
`int`	`getBlocksRead()` Number of blocks read in the last interval
`int`	`getBlocksRemoved()` Number of blocks removed in the last interval
`int`	`getBlocksReplicated()` Number of blocks replicated in the last interval
`int`	`getBlocksVerified()` Number of blocks verified in the last interval
`int`	`getBlocksWritten()` Number of blocks written in the last interval
`int`	`getBlockVerificationFailures()` Number of block verification failures in the last interval
`int`	`getBytesRead()` Number of bytes read in the last interval
`long`	`getCopyBlockOpAverageTime()` Average time for CopyBlock Operation in last interval
`long`	`getCopyBlockOpMaxTime()` The Maximum CopyBlock Operation Time since reset was called
`long`	`getCopyBlockOpMinTime()` The Minimum CopyBlock Operation Time since reset was called
`int`	`getCopyBlockOpNum()` Number of CopyBlock Operation in last interval
`long`	`getHeartbeatsAverageTime()` Average time for Heartbeat Operation in last interval
`long`	`getHeartbeatsMaxTime()` The Maximum Heartbeat Operation Time since reset was called
`long`	`getHeartbeatsMinTime()` The Minimum Heartbeat Operation Time since reset was called
`int`	`getHeartbeatsNum()` Number of Heartbeat Operation in last interval
`long`	`getReadBlockOpAverageTime()` Average time for ReadBlock Operation in last interval
`long`	`getReadBlockOpMaxTime()` The Maximum ReadBlock Operation Time since reset was called
`long`	`getReadBlockOpMinTime()` The Minimum ReadBlock Operation Time since reset was called
`int`	`getReadBlockOpNum()` Number of ReadBlock Operation in last interval
`long`	`getReadMetadataOpAverageTime()` Average time for ReadMetadata Operation in last interval
`long`	`getReadMetadataOpMaxTime()` The Maximum ReadMetadata Operation Time since reset was called
`long`	`getReadMetadataOpMinTime()` The Minimum ReadMetadata Operation Time since reset was called
`int`	`getReadMetadataOpNum()` Number of ReadMetadata Operation in last interval
`int`	`getReadsFromLocalClient()` Number of reads from local clients in the last interval
`int`	`getReadsFromRemoteClient()` Number of reads from remote clients in the last interval
`long`	`getReplaceBlockOpAverageTime()` Average time for ReplaceBlock Operation in last interval
`long`	`getReplaceBlockOpMaxTime()` The Maximum ReplaceBlock Operation Time since reset was called
`long`	`getReplaceBlockOpMinTime()` The Minimum ReplaceBlock Operation Time since reset was called
`int`	`getReplaceBlockOpNum()` Number of ReplaceBlock Operation in last interval
`long`	`getWriteBlockOpAverageTime()` Average time for WriteBlock Operation in last interval
`long`	`getWriteBlockOpMaxTime()` The Maximum WriteBlock Operation Time since reset was called
`long`	`getWriteBlockOpMinTime()` The Minimum WriteBlock Operation Time since reset was called
`int`	`getWriteBlockOpNum()` Number of WriteBlock Operation in last interval
`int`	`getWritesFromLocalClient()` Number of writes from local clients in the last interval
`int`	`getWritesFromRemoteClient()` Number of writes from remote clients in the last interval
`void`	`resetAllMinMax()` Reset all min max times
`void`	`shutdown()` Shuts down the statistics - unregisters the mbean

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Method Detail

shutdown

public void shutdown()

Shuts down the statistics - unregisters the mbean