org.apache.lens.server.metrics

Class MetricsServiceImpl

java.lang.Object

org.apache.hive.service.AbstractService

org.apache.lens.server.metrics.MetricsServiceImpl

All Implemented Interfaces:

org.apache.hive.service.Service, MetricsService

public class MetricsServiceImpl
extends org.apache.hive.service.AbstractService
implements MetricsService

The Class MetricsServiceImpl.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	MetricsServiceImpl.AsyncQueryStatusListener The listener interface for receiving asyncQueryStatus events.
class	MetricsServiceImpl.AsyncSessionEventListener The listener interface for receiving asyncSession events.

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

org.apache.hive.service.Service.STATE

Field Summary

Fields inherited from interface org.apache.lens.server.api.metrics.MetricsService

ACCEPTED_QUERIES, ACTIVE_SESSIONS, CANCELLED_QUERIES, CLOSED_SESSIONS, EXPIRED_SESSIONS, FAILED_QUERIES, FINISHED_QUERIES, NAME, OPENED_SESSIONS, QUEUED_QUERIES, RUNNING_QUERIES

Constructor Summary

Constructors

Constructor and Description
MetricsServiceImpl(String name) Instantiates a new metrics service impl.

Method Summary

Methods

Modifier and Type	Method and Description
void	decrCounter(Class<?> cls, String counter) Decrement a counter with the name costructed using given class and counter name Actual name of the counter will be
void	decrCounter(String counter) Decrement a counter with the given name Actual name of the counter will be
int	getActiveSessions() Specifies the count of all opened sessions which are not closed after restarted and the restored sessions
long	getCounter(Class<?> cls, String counter) Get current value of the counter.
long	getCounter(String counter) Get current value of the counter.
long	getFinishedQueries()
MethodMetricsContext	getMethodMetricsContext(org.glassfish.jersey.server.model.ResourceMethod method, org.glassfish.jersey.server.ContainerRequest containerRequest) Called by LensRequestListener in start event.
long	getQueuedQueries()
long	getRunningQueries()
long	getTotalAcceptedQueries()
long	getTotalCancelledQueries()
long	getTotalClosedSessions() Specifies the number of sessions closed
long	getTotalDatabaseResourceLoadErrors()
long	getTotalExpiredSessions() Specifies the number of sessions were idle for more than session timeout
long	getTotalFailedQueries()
long	getTotalFinishedQueries()
long	getTotalOpenedSessions() Specifies the count of opened sessions
long	getTotalServerStatePersistenceErrors()
long	getTotalSuccessfulQueries()
void	incrCounter(Class<?> cls, String counter) Increment a counter with the name constructed using given class and counter name Actual name of the counter will be
void	incrCounter(String counter) Increment a counter with the given name Actual name of the counter will be
void	init(org.apache.hadoop.hive.conf.HiveConf hiveConf)
void	publishReport() Publish report.
void	setEnableResourceMethodMetering(boolean enableResourceMethodMetering)
void	start()
void	stop()

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

getHiveConf, getName, getServiceState, getStartTime, register, unregister

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

MetricsServiceImpl

public MetricsServiceImpl(String name)

Instantiates a new metrics service impl.

Parameters:

name - the name

Method Detail

setEnableResourceMethodMetering

public void setEnableResourceMethodMetering(boolean enableResourceMethodMetering)

init

public void init(org.apache.hadoop.hive.conf.HiveConf hiveConf)

Specified by:

init in interface org.apache.hive.service.Service

Overrides:

init in class org.apache.hive.service.AbstractService

getMethodMetricsContext

public MethodMetricsContext getMethodMetricsContext(org.glassfish.jersey.server.model.ResourceMethod method,
                                           org.glassfish.jersey.server.ContainerRequest containerRequest)

Called by LensRequestListener in start event. marks the method meter, starts a timer, returns timer context returned by the start timer call.

Specified by:

getMethodMetricsContext in interface MetricsService

Parameters:

method - the resource method

containerRequest - container request

Returns:

See Also:

MetricsService.getMethodMetricsContext( org.glassfish.jersey.server.model.ResourceMethod, org.glassfish.jersey.server.ContainerRequest)

start

public void start()

Specified by:

start in interface org.apache.hive.service.Service

Overrides:

start in class org.apache.hive.service.AbstractService

stop

public void stop()

Specified by:

stop in interface org.apache.hive.service.Service

Overrides:

stop in class org.apache.hive.service.AbstractService

incrCounter

public void incrCounter(String counter)

Description copied from interface: MetricsService

Increment a counter with the given name Actual name of the counter will be

MetricRegistry.name(MetricsService.class, counter)

Specified by:

incrCounter in interface MetricsService

Parameters:

counter - the counter

decrCounter

public void decrCounter(String counter)

Description copied from interface: MetricsService

Decrement a counter with the given name Actual name of the counter will be

MetricRegistry.name(MetricsService.class, counter)

Specified by:

decrCounter in interface MetricsService

Parameters:

counter - the counter

incrCounter

public void incrCounter(Class<?> cls,
               String counter)

Description copied from interface: MetricsService

Increment a counter with the name constructed using given class and counter name Actual name of the counter will be

MetricRegistry.name(cls, counter)

Specified by:

incrCounter in interface MetricsService

Parameters:

cls - Class of the counter for namespacing the counter

counter - the counter

decrCounter

public void decrCounter(Class<?> cls,
               String counter)

Description copied from interface: MetricsService

Decrement a counter with the name costructed using given class and counter name Actual name of the counter will be

MetricRegistry.name(cls, counter)

Specified by:

decrCounter in interface MetricsService

Parameters:

cls - Class of the counter for namespacing of counters

counter - the counter

getCounter

public long getCounter(String counter)

Description copied from interface: MetricsService

Get current value of the counter.

Specified by:

getCounter in interface MetricsService

Parameters:

counter - the counter

Returns:

the counter

getCounter

public long getCounter(Class<?> cls,
              String counter)

Description copied from interface: MetricsService

Get current value of the counter.

Specified by:

getCounter in interface MetricsService

Parameters:

cls - the cls

counter - the counter

Returns:

the counter

getTotalDatabaseResourceLoadErrors

public long getTotalDatabaseResourceLoadErrors()

Specified by:

getTotalDatabaseResourceLoadErrors in interface MetricsService

getQueuedQueries

public long getQueuedQueries()

Specified by:

getQueuedQueries in interface MetricsService

getRunningQueries

public long getRunningQueries()

Specified by:

getRunningQueries in interface MetricsService

getFinishedQueries

public long getFinishedQueries()

Specified by:

getFinishedQueries in interface MetricsService

getTotalAcceptedQueries

public long getTotalAcceptedQueries()

Specified by:

getTotalAcceptedQueries in interface MetricsService

getTotalFinishedQueries

public long getTotalFinishedQueries()

Specified by:

getTotalFinishedQueries in interface MetricsService

getTotalCancelledQueries

public long getTotalCancelledQueries()

Specified by:

getTotalCancelledQueries in interface MetricsService

getTotalFailedQueries

public long getTotalFailedQueries()

Specified by:

getTotalFailedQueries in interface MetricsService

getActiveSessions

public int getActiveSessions()

Description copied from interface: MetricsService

Specifies the count of all opened sessions which are not closed after restarted and the restored sessions

Specified by:

getActiveSessions in interface MetricsService

getTotalOpenedSessions

public long getTotalOpenedSessions()

Description copied from interface: MetricsService

Specifies the count of opened sessions

Specified by:

getTotalOpenedSessions in interface MetricsService

getTotalClosedSessions

public long getTotalClosedSessions()

Description copied from interface: MetricsService

Specifies the number of sessions closed

Specified by:

getTotalClosedSessions in interface MetricsService

getTotalExpiredSessions

public long getTotalExpiredSessions()

Description copied from interface: MetricsService

Specifies the number of sessions were idle for more than session timeout

Specified by:

getTotalExpiredSessions in interface MetricsService

getTotalServerStatePersistenceErrors

public long getTotalServerStatePersistenceErrors()

Specified by:

getTotalServerStatePersistenceErrors in interface MetricsService

publishReport

public void publishReport()

Description copied from interface: MetricsService

Publish report.

Specified by:

publishReport in interface MetricsService

getTotalSuccessfulQueries

public long getTotalSuccessfulQueries()

Specified by:

getTotalSuccessfulQueries in interface MetricsService