Package com.github.ambry.rest

Class RestRequestMetricsTracker.ScalingMetricsTracker

java.lang.Object

com.github.ambry.rest.RestRequestMetricsTracker.ScalingMetricsTracker

Enclosing class:

RestRequestMetricsTracker

public static class RestRequestMetricsTracker.ScalingMetricsTracker
extends java.lang.Object

Helper for updating scaling related metrics. These metrics are updated in the classes that provide scaling capabilities when transferring control from NioServer to RestRequestService.

Constructor Summary

Constructors

Constructor	Description
ScalingMetricsTracker()

Method Summary

Modifier and Type	Method	Description
long	addToRequestProcessingTime(long delta)	Adds to the time taken to process a request at the scaling layer.
long	addToRequestProcessingWaitTime(long delta)	Adds to the scaling layer processing wait time for a request.
long	addToResponseProcessingTime(long delta)	Adds to the time taken to process a response at the scaling layer.
long	addToResponseProcessingWaitTime(long delta)	Adds to the scaling layer processing wait time of a response.
void	markRequestCompleted()	Marks the time at which request was completed so that request RTT can be calculated.
void	markRequestReceived()	Marks the time at which the request was received.

Methods inherited from class java.lang.Object

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

Constructor Detail

ScalingMetricsTracker

public ScalingMetricsTracker()

Method Detail

addToRequestProcessingTime

public long addToRequestProcessingTime(long delta)

Adds to the time taken to process a request at the scaling layer.

Parameters:

delta - the time taken in ms to do the current piece of processing at the scaling layer for the request.

Returns:

the total time taken in ms to process this request at the scaling layer, including the current piece, at this moment.

addToRequestProcessingWaitTime

public long addToRequestProcessingWaitTime(long delta)

Adds to the scaling layer processing wait time for a request.

Parameters:

delta - the time in ms a request has spent waiting to be processed at the scaling layer.

Returns:

the total time in ms this request has spent waiting to be processed at the scaling layer at this moment.

addToResponseProcessingTime

public long addToResponseProcessingTime(long delta)

Adds to the time taken to process a response at the scaling layer.

Parameters:

delta - the time taken in ms to do the current piece of processing at the scaling layer for the response.

Returns:

the total time taken in ms to process the response at the scaling layer, including the current piece, at this moment.

addToResponseProcessingWaitTime

public long addToResponseProcessingWaitTime(long delta)

Adds to the scaling layer processing wait time of a response.

Parameters:

delta - the time in ms a response has spent waiting to be processed at the scaling layer.

Returns:

the total time in ms this response has spent waiting to be processed at the scaling layer at this moment.

markRequestReceived

public void markRequestReceived()

Marks the time at which the request was received.

markRequestCompleted

public void markRequestCompleted()

Marks the time at which request was completed so that request RTT can be calculated.