com.netflix.turbine.handler

Interface PerformanceCriteria

All Known Implementing Classes:

PerformanceCriteria.AggClusterPerformanceCriteria

public interface PerformanceCriteria

Interface that encapsulates the perf criteria expressed by a TurbineDataHandler

Note that data is generally dispatched to TurbineDataHandler using multiple threads and the queue size and num threads can help determine the throughput of a handler.

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	PerformanceCriteria.AggClusterPerformanceCriteria Sample criteria that is used by the AggregateClusterMonitor.getEventHandler() to handle data from multiple InstanceMonitor connections.

Method Summary

Methods

Modifier and Type	Method and Description
int	getMaxQueueSize() What is the max no of elements that the handler can accept as queued before they are delivered to the handler
boolean	isCritical() Do we care about this handler's performance? Sometimes we use dummy handlers e.g STATIC LISTENER There are 2 main arguments here 1.
int	numThreads() What is the no of threads that the handler would like to have data sent from.

Method Detail

isCritical

boolean isCritical()

Do we care about this handler's performance? Sometimes we use dummy handlers e.g STATIC LISTENER There are 2 main arguments here 1. Queue Size - how many elements should be queued before the next elements start being discarded. This is related to latency of the data 2. How many threads are allowed to pull data simultaneously off the queue and dispatch to the handler in parallel

Returns:

boolean

getMaxQueueSize

int getMaxQueueSize()

What is the max no of elements that the handler can accept as queued before they are delivered to the handler

Returns:

int

numThreads

int numThreads()

What is the no of threads that the handler would like to have data sent from.

Returns:

int