org.apache.hadoop.hive.llap.registry.impl

Class LlapRegistryService

java.lang.Object

org.apache.hadoop.service.AbstractService

org.apache.hadoop.hive.llap.registry.impl.LlapRegistryService

All Implemented Interfaces:

Closeable, AutoCloseable, org.apache.hadoop.service.Service

public class LlapRegistryService
extends org.apache.hadoop.service.AbstractService

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.hadoop.service.Service

org.apache.hadoop.service.Service.STATE

Field Summary

Fields

Modifier and Type	Field and Description
static String	LLAP_DAEMON_NUM_ENABLED_EXECUTORS
static String	LLAP_DAEMON_TASK_SCHEDULER_ENABLED_WAIT_QUEUE_SIZE

Constructor Summary

Constructors

Constructor and Description
LlapRegistryService(boolean isDaemon)

Method Summary

Modifier and Type	Method and Description
static String	currentUser()
org.apache.hadoop.yarn.api.records.ApplicationId	getApplicationId()
static LlapRegistryService	getClient(org.apache.hadoop.conf.Configuration conf) Helper method to get a ServiceRegistry instance to read from the registry.
LlapServiceInstanceSet	getInstances()
LlapServiceInstanceSet	getInstances(long clusterReadyTimeoutMs)
String	getWorkerIdentity()
boolean	isDynamic()
LlapZookeeperRegistryImpl.ConfigChangeLockResult	lockForConfigChange(long windowStart, long windowEnd) Locks the Llap Cluster for configuration change for the given time window.
void	registerStateChangeListener(ServiceInstanceStateChangeListener<LlapServiceInstance> listener)
void	serviceInit(org.apache.hadoop.conf.Configuration conf)
void	serviceStart()
void	serviceStop()
void	updateRegistration(Iterable<Map.Entry<String,String>> attributes)

Methods inherited from class org.apache.hadoop.service.AbstractService

close, getBlockers, getConfig, getFailureCause, getFailureState, getLifecycleHistory, getName, getServiceState, getStartTime, init, isInState, noteFailure, putBlocker, registerGlobalListener, registerServiceListener, removeBlocker, setConfig, start, stop, toString, unregisterGlobalListener, unregisterServiceListener, waitForServiceToStop

Methods inherited from class java.lang.Object

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

Field Detail

LLAP_DAEMON_TASK_SCHEDULER_ENABLED_WAIT_QUEUE_SIZE

public static final String LLAP_DAEMON_TASK_SCHEDULER_ENABLED_WAIT_QUEUE_SIZE

See Also:

Constant Field Values

LLAP_DAEMON_NUM_ENABLED_EXECUTORS

public static final String LLAP_DAEMON_NUM_ENABLED_EXECUTORS

See Also:

Constant Field Values

Constructor Detail

LlapRegistryService

public LlapRegistryService(boolean isDaemon)

Method Detail

getClient

public static LlapRegistryService getClient(org.apache.hadoop.conf.Configuration conf)

Helper method to get a ServiceRegistry instance to read from the registry. This should not be used by LLAP daemons.

Parameters:

conf - Configuration instance which contains service registry information.

Returns:

currentUser

public static String currentUser()

serviceInit

public void serviceInit(org.apache.hadoop.conf.Configuration conf)

Overrides:

serviceInit in class org.apache.hadoop.service.AbstractService

serviceStart

public void serviceStart()
                  throws Exception

Overrides:

serviceStart in class org.apache.hadoop.service.AbstractService

Throws:

Exception

serviceStop

public void serviceStop()
                 throws Exception

Overrides:

serviceStop in class org.apache.hadoop.service.AbstractService

Throws:

Exception

updateRegistration

public void updateRegistration(Iterable<Map.Entry<String,String>> attributes)
                        throws IOException

Throws:

IOException

lockForConfigChange

public LlapZookeeperRegistryImpl.ConfigChangeLockResult lockForConfigChange(long windowStart,
                                                                            long windowEnd)

Locks the Llap Cluster for configuration change for the given time window.

Parameters:

windowStart - The beginning of the time window when no other configuration change is allowed.

windowEnd - The end of the time window when no other configuration change is allowed.

Returns:

The result of the change (success if the lock is succeeded, and the next possible configuration change time

getInstances

public LlapServiceInstanceSet getInstances()
                                    throws IOException

Throws:

IOException

getInstances

public LlapServiceInstanceSet getInstances(long clusterReadyTimeoutMs)
                                    throws IOException

Throws:

IOException

registerStateChangeListener

public void registerStateChangeListener(ServiceInstanceStateChangeListener<LlapServiceInstance> listener)
                                 throws IOException

Throws:

IOException

isDynamic

public boolean isDynamic()

getWorkerIdentity

public String getWorkerIdentity()

getApplicationId

public org.apache.hadoop.yarn.api.records.ApplicationId getApplicationId()
                                                                  throws IOException

Throws:

IOException