Package com.yahoo.vespa.model

Class ConfigSentinel

java.lang.Object

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

com.yahoo.vespa.model.AbstractService

com.yahoo.vespa.model.ConfigSentinel

All Implemented Interfaces:

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

public class ConfigSentinel
extends AbstractService
implements com.yahoo.cloud.config.SentinelConfig.Producer

There is one config-sentinel running on each Vespa host, and one instance of this class is therefore created by each instance of class Host.

Author:

gjoranv

See Also:

• Serialized Form

Field Summary

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
ConfigSentinel(Host host, com.yahoo.config.provision.ApplicationId applicationId, com.yahoo.config.provision.Zone zone)	Constructs a new ConfigSentinel for the given host.

Method Summary

Modifier and Type	Method	Description
void	allocatePorts(int start, PortAllocBridge from)	allocate the ports you need
void	getConfig(com.yahoo.cloud.config.SentinelConfig.Builder builder)
int	getHealthPort()	The service HTTP port for health status
int	getPortCount()	Returns the number of ports needed by this service.
String	getServiceType()	Overrides parent method as this is named config-sentinel and not configsentinel all over Vespa
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, getHost, getHostName, getHostResource, getId, getIndex, getJvmOptions, getNumPortsAllocated, getPortsMeta, getPreLoad, getPreShutdownCommand, getRelativePort, getServiceInfo, getServiceName, getServicePropertyString, getServicePropertyString, 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

Constructor Details

ConfigSentinel

public ConfigSentinel(Host host,
 com.yahoo.config.provision.ApplicationId applicationId,
 com.yahoo.config.provision.Zone zone)

Constructs a new ConfigSentinel for the given host.

Parameters:

host - Physical host on which to run.

Method Details

allocatePorts

public void allocatePorts(int start,
 PortAllocBridge from)

Description copied from interface: NetworkPortRequestor

allocate the ports you need

Specified by:

allocatePorts in interface NetworkPortRequestor

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()

Description copied from interface: NetworkPortRequestor

Returns the number of ports needed by this service. User-defined ports for container http servers should not be counted, as those ports are required to be outside Vespa's port range.

Specified by:

getPortCount in interface NetworkPortRequestor

Returns:

The number of ports reserved by the Sentinel.

getHealthPort

public int getHealthPort()

Description copied from class: AbstractService

The service HTTP port for health status

Specified by:

getHealthPort in interface Service

Overrides:

getHealthPort in class AbstractService

getServiceType

public String getServiceType()

Overrides parent method as this is named config-sentinel and not configsentinel all over Vespa

Specified by:

getServiceType in interface NetworkPortRequestor

Overrides:

getServiceType in class AbstractService

Returns:

service type for config-sentinel

getConfig

public void getConfig(com.yahoo.cloud.config.SentinelConfig.Builder builder)

Specified by:

getConfig in interface com.yahoo.cloud.config.SentinelConfig.Producer