Package org.apache.hadoop.ipc.metrics

Class DecayRpcSchedulerDetailedMetrics

java.lang.Object

org.apache.hadoop.ipc.metrics.DecayRpcSchedulerDetailedMetrics

@Private
@Evolving
@Metrics(about="Per queue(priority) metrics",
         context="decayrpcschedulerdetailed")
public class DecayRpcSchedulerDetailedMetrics
extends java.lang.Object

This class is for maintaining queue (priority) level related statistics when FairCallQueue is used and publishing them through the metrics interface.

Method Summary

Modifier and Type	Method	Description
void	addProcessingTime(int priority, long processingTime)	Instrument a Call processing time based on its priority.
void	addQueueTime(int priority, long queueTime)	Instrument a Call queue time based on its priority.
static DecayRpcSchedulerDetailedMetrics	create(java.lang.String ns)
java.lang.String	getName()
java.lang.String	getProcessingName(int priority)
java.lang.String	getQueueName(int priority)
void	init(int numLevels)	Initialize the metrics for JMX with priority levels.
void	shutdown()	Shutdown the instrumentation process.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

create

public static DecayRpcSchedulerDetailedMetrics create(java.lang.String ns)

init

public void init(int numLevels)

Initialize the metrics for JMX with priority levels.

Parameters:

numLevels - input numLevels.

addQueueTime

public void addQueueTime(int priority,
                         long queueTime)

Instrument a Call queue time based on its priority.

Parameters:

priority - of the RPC call

queueTime - of the RPC call in the queue of the priority

addProcessingTime

public void addProcessingTime(int priority,
                              long processingTime)

Instrument a Call processing time based on its priority.

Parameters:

priority - of the RPC call

processingTime - of the RPC call in the queue of the priority

shutdown

public void shutdown()

Shutdown the instrumentation process.

getQueueName

public java.lang.String getQueueName(int priority)

Parameters:

priority - input priority.

Returns:

Returns the rate name inside the metric.

getProcessingName

public java.lang.String getProcessingName(int priority)

Parameters:

priority - input priority.

Returns:

Returns the rate name inside the metric.

getName

public java.lang.String getName()