Package com.yahoo.vespa.model

Class ConfigProxy

java.lang.Object

com.yahoo.config.model.producer.AbstractConfigProducer<AbstractConfigProducer<?>>

com.yahoo.vespa.model.AbstractService

com.yahoo.vespa.model.ConfigProxy

All Implemented Interfaces:

com.yahoo.config.ConfigInstance.Producer, ConfigProducer, NetworkPortRequestor, Service, Serializable

public class ConfigProxy
extends AbstractService

There is one config proxy running on each Vespa host, and one instance of this class is therefore created by each instance of class Host. NOTE: The Config proxy is not started by the config system, and does not receive any config. It's included here so we know what host it runs on, and to give an error message if another service tries to reserve the port it is using.

Author:

Vidar Larsen, Harald Musum

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
static final int	BASEPORT

Fields inherited from class com.yahoo.vespa.model.AbstractService

portsMeta

Fields inherited from class com.yahoo.config.model.producer.AbstractConfigProducer

log

Constructor Summary

Constructors

Constructor	Description
ConfigProxy(Host host)	Creates a new ConfigProxy instance.

Method Summary

Modifier and Type	Method	Description
void	allocatePorts(int start, PortAllocBridge from)	allocate the ports you need
int	getPortCount()	ConfigProxy needs one rpc client port.
int	getWantedPort()	Returns the desired base port for this service.
boolean	requiresWantedPort()	The desired base port is the only allowed base port.

Methods inherited from class com.yahoo.vespa.model.AbstractService

addEnvironmentVariable, addEnvironmentVariable, appendJvmOptions, defaultPreload, distributeCpuSocketAffinity, getAffinity, getDefaultMetricDimensions, getEnvStringForTesting, getEnvVars, getHealthPort, getHost, getHostName, getHostResource, getId, getIndex, getJvmOptions, getNumPortsAllocated, getPortsMeta, getPreLoad, getPreShutdownCommand, getRelativePort, getServiceInfo, getServiceName, getServicePropertyString, getServicePropertyString, getServiceType, getStartupCommand, initService, isInitialized, prependJvmOptions, remove, setAffinity, setBasePort, setCoreOnOOM, setHostResource, setJvmOptions, setMMapNoCoreLimit, setNoVespaMalloc, setPreLoad, setProp, setProp, setVespaMalloc, setVespaMallocDebug, setVespaMallocDebugStackTrace, toString

Methods inherited from class com.yahoo.config.model.producer.AbstractConfigProducer

addChild, addConfigId, addDescendantService, addUserConfig, cascadeConfig, dump, getChildren, getChildrenByTypeRecursive, getConfigClassLoader, getConfigId, getDescendantServices, getMonitoringService, getParent, getRoot, getSubId, getUserConfigs, hostSystem, mergeUserConfigs, removeChild, setParent, setUserConfigs, stateIsHosted, validate

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.yahoo.vespa.model.ConfigProducer

addUserConfig, cascadeConfig, dump, getChildren, getConfigId, getDescendantServices, getUserConfigs, hostSystem, validate

Methods inherited from interface com.yahoo.vespa.model.NetworkPortRequestor

getConfigId

Methods inherited from interface com.yahoo.vespa.model.Service

getLogctlSpecs

Field Details

BASEPORT

public static final int BASEPORT

See Also:

• Constant Field Values

Constructor Details

ConfigProxy

public ConfigProxy(Host host)

Creates a new ConfigProxy instance.

Parameters:

host - hostname

Method Details

allocatePorts

public void allocatePorts(int start,
 PortAllocBridge from)

Description copied from interface: NetworkPortRequestor

allocate the ports you need

getWantedPort

public int getWantedPort()

Returns the desired base port for this service.

Specified by:

getWantedPort in interface NetworkPortRequestor

Overrides:

getWantedPort in class AbstractService

Returns:

The desired base port for the first instance of the service type.

requiresWantedPort

public boolean requiresWantedPort()

The desired base port is the only allowed base port.

Specified by:

requiresWantedPort in interface NetworkPortRequestor

Overrides:

requiresWantedPort in class AbstractService

Returns:

false by default

getPortCount

public int getPortCount()

ConfigProxy needs one rpc client port.

Returns:

The number of ports reserved by the config proxy