public class ResourceLocalizationService extends CompositeService implements EventHandler<LocalizationEvent>, LocalizationProtocol
CompositeService.CompositeServiceShutdownHook
Service.STATE
Modifier and Type | Field and Description |
---|---|
protected Dispatcher |
dispatcher |
static String |
NM_PRIVATE_DIR |
static FsPermission |
NM_PRIVATE_PERM |
STOP_ONLY_STARTED_SERVICES
Constructor and Description |
---|
ResourceLocalizationService(Dispatcher dispatcher,
ContainerExecutor exec,
DeletionService delService,
LocalDirsHandlerService dirsHandler) |
Modifier and Type | Method and Description |
---|---|
org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.ResourceLocalizationService.LocalizerRunner |
getLocalizerRunner(String locId) |
Map<String,org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.ResourceLocalizationService.LocalizerRunner> |
getPrivateLocalizers() |
org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.ResourceLocalizationService.PublicLocalizer |
getPublicLocalizer() |
void |
handle(LocalizationEvent event) |
LocalizerHeartbeatResponse |
heartbeat(LocalizerStatus status) |
void |
serviceInit(Configuration conf)
All initialization code needed by a service.
|
void |
serviceStart()
Actions called during the INITED to STARTED transition.
|
void |
serviceStop()
Actions called during the transition to the STOPPED state.
|
addIfService, addService, getServices, removeService
close, getBlockers, getConfig, getFailureCause, getFailureState, getLifecycleHistory, getName, getServiceState, getStartTime, init, isInState, noteFailure, putBlocker, registerGlobalListener, registerServiceListener, removeBlocker, setConfig, start, stop, toString, unregisterGlobalListener, unregisterServiceListener, waitForServiceToStop
public static final String NM_PRIVATE_DIR
public static final FsPermission NM_PRIVATE_PERM
protected final Dispatcher dispatcher
public ResourceLocalizationService(Dispatcher dispatcher, ContainerExecutor exec, DeletionService delService, LocalDirsHandlerService dirsHandler)
public void serviceInit(Configuration conf) throws Exception
AbstractService
AbstractService.init(Configuration)
prevents re-entrancy.
The base implementation checks to see if the subclass has created
a new configuration instance, and if so, updates the base class valueserviceInit
in class CompositeService
conf
- configurationException
- on a failure -these will be caught,
possibly wrapped, and wil; trigger a service stoppublic LocalizerHeartbeatResponse heartbeat(LocalizerStatus status)
heartbeat
in interface LocalizationProtocol
public void serviceStart() throws Exception
AbstractService
AbstractService.start()
prevents re-entrancy.serviceStart
in class CompositeService
Exception
- if needed -these will be caught,
wrapped, and trigger a service stoppublic void serviceStop() throws Exception
AbstractService
AbstractService.stop()
prevents re-entrancy.
Implementations MUST write this to be robust against failures, including
checks for null references -and for the first failure to not stop other
attempts to shut down parts of the service.serviceStop
in class CompositeService
Exception
- if needed -these will be caught and logged.public void handle(LocalizationEvent event)
handle
in interface EventHandler<LocalizationEvent>
@InterfaceAudience.Private public org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.ResourceLocalizationService.PublicLocalizer getPublicLocalizer()
@InterfaceAudience.Private public org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.ResourceLocalizationService.LocalizerRunner getLocalizerRunner(String locId)
@InterfaceAudience.Private public Map<String,org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.ResourceLocalizationService.LocalizerRunner> getPrivateLocalizers()
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