com.opencloud.rhino.limiting

Interface RateLimiterMBean

All Superinterfaces:

LimiterMBean

public interface RateLimiterMBean
extends LimiterMBean

Defines the JMX interface for controlling a single rate limiter.

Limiter Information

A CompositeData object containing detailed Limiter information for specified nodes is returned by the methods LimiterMBean.getInfoSummary(int[]) and LimiterMBean.getConfigSummary().

Field	Open Type	Description
limiter-name	String	The name of this limiter. Always null for per-node values returned by LimiterMBean.getConfigSummary().
type	String	The type of this limiter. Always null for per-node values returned by LimiterMBean.getConfigSummary().
node-id	Integer	The node ID that this row applies to. -1 for the cluster-wide values row returned by LimiterMBean.getConfigSummary().
parent	String	The name of the parent of this limiter or null if it has no parent. Always null for per-node values returned by LimiterMBean.getConfigSummary().
maxrate	Double	The maximum rate setting for this limiter
time-unit	String	The time unit setting for this limiter. Always null for per-node values returned by LimiterMBean.getConfigSummary().
bypassed	Boolean	The bypassed setting for this limiter
depth	Double	The depth setting for this limiter

Method Summary

Methods

Modifier and Type	Method and Description
double	getDepthDefault() Get the default "depth" of this limiter (depth is the number of time units' worth of work capacity can be stored by the rate limiter).
double[]	getDepthForNode(int[] nodeIDs) Get the per-node "depth" of this limiter on the specified nodes (depth is the number of time units' worth of work capacity can be stored by the rate limiter).
double	getMaxRateDefault() Get the default maximum number of units which can be consumed per time unit by this limiter, eg "100" for a rate of 100 per second.
double[]	getMaxRateForNode(int[] nodeIDs) Get the per-node maximum number of units which can be consumed per time unit by this limiter on the specified nodes, eg "100" for a rate of 100 per second.
String	getTimeUnit() Get the type of time unit to be used by this limiter when setting the rate, eg the "seconds" in a rate of 100 per second.
void	setDepthDefault(double depth) Set the default "depth" of this limiter (depth is the number of time units' worth of work capacity can be stored by the rate limiter).
void	setDepthForNode(double[] depth, int[] nodeIDs) Set the per-node "depth" of this limiter on the specified nodes (depth is the number of time units' worth of work capacity can be stored by the rate limiter).
void	setMaxRateDefault(double maxRate) Set the default maximum number of units which can be consumed per time unit by this limiter, eg "100" for a rate of 100 per second.
void	setMaxRateForNode(double[] maxRate, int[] nodeIDs) Set the per-node maximum number of units which can be consumed per time unit by this limiter on the specified nodes, eg "100" for a rate of 100 per second.
void	setTimeUnit(String timeUnit) Set the type of time unit to be used by this limiter when setting the rate, eg the "seconds" in a rate of 100 per second.

Methods inherited from interface com.opencloud.rhino.limiting.LimiterMBean

getChildLimiters, getConfigSummary, getConnectedEndPoints, getInfoSummary, getName, getParent, getType, isBypassedDefault, isBypassedForNode, setBypassedDefault, setBypassedForNode, setParent, useDefaultConfig

Method Detail

getMaxRateDefault

double getMaxRateDefault()
                         throws ConfigurationException

Get the default maximum number of units which can be consumed per time unit by this limiter, eg "100" for a rate of 100 per second. This value will be used when no per-node setting exists for a given node.

Throws:

ConfigurationException

getMaxRateForNode

double[] getMaxRateForNode(int[] nodeIDs)
                           throws ConfigurationException,
                                  NullPointerException,
                                  InvalidArgumentException

Get the per-node maximum number of units which can be consumed per time unit by this limiter on the specified nodes, eg "100" for a rate of 100 per second.

Throws:

ConfigurationException

NullPointerException

InvalidArgumentException

setMaxRateDefault

void setMaxRateDefault(double maxRate)
                       throws ConfigurationException,
                              com.opencloud.util.exception.ValidationException

Set the default maximum number of units which can be consumed per time unit by this limiter, eg "100" for a rate of 100 per second. This value will be used when no per-node setting exists for a given node.

Throws:

ConfigurationException

com.opencloud.util.exception.ValidationException

setMaxRateForNode

void setMaxRateForNode(double[] maxRate,
                     int[] nodeIDs)
                       throws ConfigurationException,
                              NullPointerException,
                              InvalidArgumentException,
                              com.opencloud.util.exception.ValidationException

Set the per-node maximum number of units which can be consumed per time unit by this limiter on the specified nodes, eg "100" for a rate of 100 per second.

Throws:

ConfigurationException

NullPointerException

InvalidArgumentException

com.opencloud.util.exception.ValidationException

getTimeUnit

String getTimeUnit()
                   throws ConfigurationException

Get the type of time unit to be used by this limiter when setting the rate, eg the "seconds" in a rate of 100 per second. Valid values are SECONDS, MINUTES, HOURS, and DAYS.

Throws:

ConfigurationException

setTimeUnit

void setTimeUnit(String timeUnit)
                 throws ConfigurationException,
                        com.opencloud.util.exception.ValidationException

Set the type of time unit to be used by this limiter when setting the rate, eg the "seconds" in a rate of 100 per second. Valid values are "SECONDS", "MINUTES", "HOURS", and "DAYS".

Throws:

ConfigurationException

com.opencloud.util.exception.ValidationException

getDepthDefault

double getDepthDefault()
                       throws ConfigurationException

Get the default "depth" of this limiter (depth is the number of time units' worth of work capacity can be stored by the rate limiter). This value will be used when no per-node setting exists for a given node. "Depth" is used to control the amount of burstiness allowed by the rate limiter. High values mean more tolerance of load bursts. Low values result in tighter, more fine grained rate limiting, and less tolerance of load bursts. "1.0" is the default value, and should be adequate for most applications. E.g. for a setting of "200 per second" at depth "1.0", the rate limiter can store up to 200 work units of capacity (1 seconds' worth), which may be used all at once in a load spike. A setting of "2.0" would mean that up to 400 work units could be stored, and a setting of "0.5" means that up to 100 units will be stored.

Throws:

ConfigurationException

getDepthForNode

double[] getDepthForNode(int[] nodeIDs)
                         throws ConfigurationException,
                                NullPointerException,
                                InvalidArgumentException

Get the per-node "depth" of this limiter on the specified nodes (depth is the number of time units' worth of work capacity can be stored by the rate limiter). "Depth" is used to control the amount of burstiness allowed by the rate limiter. High values mean more tolerance of load bursts. Low values result in tighter, more fine grained rate limiting, and less tolerance of load bursts. "1.0" is the default value, and should be adequate for most applications. E.g. for a setting of "200 per second" at depth "1.0", the rate limiter can store up to 200 work units of capacity (1 seconds' worth), which may be used all at once in a load spike. A setting of "2.0" would mean that up to 400 work units could be stored, and a setting of "0.5" means that up to 100 units will be stored.

Throws:

ConfigurationException

NullPointerException

InvalidArgumentException

setDepthDefault

void setDepthDefault(double depth)
                     throws ConfigurationException,
                            com.opencloud.util.exception.ValidationException

Set the default "depth" of this limiter (depth is the number of time units' worth of work capacity can be stored by the rate limiter). This value will be used when no per-node setting exists for a given node. "Depth" is used to control the amount of burstiness allowed by the rate limiter. High values mean more tolerance of load bursts. Low values result in tighter, more fine grained rate limiting, and less tolerance of load bursts. "1.0" is the default value, and should be adequate for most applications. E.g. for a setting of "200 per second" at depth "1.0", the rate limiter can store up to 200 work units of capacity (1 seconds' worth), which may be used all at once in a load spike. A setting of "2.0" would mean that up to 400 work units could be stored, and a setting of "0.5" means that up to 100 units will be stored.

Throws:

ConfigurationException

com.opencloud.util.exception.ValidationException

setDepthForNode

void setDepthForNode(double[] depth,
                   int[] nodeIDs)
                     throws ConfigurationException,
                            com.opencloud.util.exception.ValidationException,
                            NullPointerException,
                            InvalidArgumentException

Set the per-node "depth" of this limiter on the specified nodes (depth is the number of time units' worth of work capacity can be stored by the rate limiter). "Depth" is used to control the amount of burstiness allowed by the rate limiter. High values mean more tolerance of load bursts. Low values result in tighter, more fine grained rate limiting, and less tolerance of load bursts. "1.0" is the default value, and should be adequate for most applications. E.g. for a setting of "200 per second" at depth "1.0", the rate limiter can store up to 200 work units of capacity (1 seconds' worth), which may be used all at once in a load spike. A setting of "2.0" would mean that up to 400 work units could be stored, and a setting of "0.5" means that up to 100 units will be stored.

Throws:

ConfigurationException

com.opencloud.util.exception.ValidationException

NullPointerException

InvalidArgumentException