org.glassfish.jdbc.pool.monitor

Class JdbcConnPoolStatsProvider

java.lang.Object

org.glassfish.jdbc.pool.monitor.JdbcConnPoolStatsProvider

@AMXMetadata(type="jdbc-connection-pool-mon",
             group="monitoring")
@ManagedObject
@Description(value="JDBC Statistics")
public class JdbcConnPoolStatsProvider
extends Object

StatsProvider object for Jdbc pool monitoring. Implements various events related to jdbc pool monitoring and provides objects to the calling modules that retrieve monitoring information.

Author:

Shalini M

Constructor Summary

Constructors

Constructor and Description
JdbcConnPoolStatsProvider(org.glassfish.resourcebase.resources.api.PoolInfo poolInfo, Logger logger)

Method Summary

Methods

Modifier and Type	Method and Description
void	connectionAcquiredEvent(String poolName, String appName, String moduleName) When a connection is acquired increment counter
void	connectionCreatedEvent(String poolName, String appName, String moduleName) When a connection is created increment counter
void	connectionDestroyedEvent(String poolName, String appName, String moduleName) When connection destroyed event is got increment numConnDestroyed.
void	connectionMatchedEvent(String poolName, String appName, String moduleName) When connection under test matches the current request , increment numConnSuccessfullyMatched.
void	connectionNotMatchedEvent(String poolName, String appName, String moduleName) When a connection under test does not match the current request, increment numConnNotSuccessfullyMatched.
void	connectionReleasedEvent(String poolName, String appName, String moduleName) When a connection is released increment counter
void	connectionRequestDequeuedEvent(String poolName, String appName, String moduleName) When an object is removed from the wait queue, decrement the waitQueueLength.
void	connectionRequestQueuedEvent(String poolName, String appName, String moduleName) When an object is added to wait queue, increment the waitQueueLength.
void	connectionRequestServedEvent(String poolName, String appName, String moduleName, long timeTakenInMillis) Event that a connection request is served in timeTakenInMillis.
void	connectionsFreedEvent(String poolName, String appName, String moduleName, int count) Connections freed event
void	connectionTimedOutEvent(String poolName, String appName, String moduleName) Whenever connection timed-out event occurs, increment numConnTimedOut
void	connectionUsedEvent(String poolName, String appName, String moduleName) Connection used event
void	connectionValidationFailedEvent(String poolName, String appName, String moduleName, int increment) Whenever connection leak happens, increment numConnFailedValidation
void	decrementConnectionUsedEvent(String poolName, String appName, String moduleName) Decrement numConnUsed event
void	decrementNumConnFreeEvent(String poolName, String appName, String moduleName) Decrement numconnfree event
org.glassfish.external.statistics.CountStatistic	getAverageConnWaitTime()
org.glassfish.external.statistics.RangeStatistic	getConnRequestWaitTime()
org.glassfish.external.statistics.CountStatistic	getNumConnAcquired()
org.glassfish.external.statistics.CountStatistic	getNumConnCreated()
org.glassfish.external.statistics.CountStatistic	getNumConnDestroyed()
org.glassfish.external.statistics.CountStatistic	getNumConnFailedValidation()
org.glassfish.external.statistics.RangeStatistic	getNumConnFree()
org.glassfish.external.statistics.CountStatistic	getNumConnNotSuccessfullyMatched()
org.glassfish.external.statistics.CountStatistic	getNumConnReleased()
org.glassfish.external.statistics.CountStatistic	getNumConnSuccessfullyMatched()
org.glassfish.external.statistics.CountStatistic	getNumConnTimedOut()
org.glassfish.external.statistics.RangeStatistic	getNumConnUsed()
org.glassfish.external.statistics.CountStatistic	getNumPotentialConnLeakCount() When a connection leak is observed, the monitoring statistics are displayed to the server.log.
org.glassfish.resourcebase.resources.api.PoolInfo	getPoolInfo()
com.sun.enterprise.resource.pool.PoolLifeCycleListenerRegistry	getPoolRegistry()
org.glassfish.external.statistics.CountStatistic	getWaitQueueLength()
void	incrementNumConnFreeEvent(String poolName, String appName, String moduleName, boolean beingDestroyed, int steadyPoolSize) Increment numconnfree event
void	potentialConnLeakEvent(String poolName, String appName, String moduleName) Whenever connection leak happens, increment numPotentialConnLeak
void	reset() Reset pool statistics.
void	setPoolRegistry(com.sun.enterprise.resource.pool.PoolLifeCycleListenerRegistry poolRegistry)

Methods inherited from class java.lang.Object

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

Constructor Detail

JdbcConnPoolStatsProvider

public JdbcConnPoolStatsProvider(org.glassfish.resourcebase.resources.api.PoolInfo poolInfo,
                         Logger logger)

Method Detail

potentialConnLeakEvent

public void potentialConnLeakEvent(String poolName,
                          String appName,
                          String moduleName)

Whenever connection leak happens, increment numPotentialConnLeak

Parameters:

pool - JdbcConnectionPool that got a connLeakEvent

connectionTimedOutEvent

public void connectionTimedOutEvent(String poolName,
                           String appName,
                           String moduleName)

Whenever connection timed-out event occurs, increment numConnTimedOut

Parameters:

pool - JdbcConnectionPool that got a connTimedOutEvent

decrementNumConnFreeEvent

public void decrementNumConnFreeEvent(String poolName,
                             String appName,
                             String moduleName)

Decrement numconnfree event

Parameters:

poolName -

steadyPoolSize -

incrementNumConnFreeEvent

public void incrementNumConnFreeEvent(String poolName,
                             String appName,
                             String moduleName,
                             boolean beingDestroyed,
                             int steadyPoolSize)

Increment numconnfree event

Parameters:

poolName -

steadyPoolSize -

decrementConnectionUsedEvent

public void decrementConnectionUsedEvent(String poolName,
                                String appName,
                                String moduleName)

Decrement numConnUsed event

Parameters:

poolName -

beingDestroyed - if the connection is destroyed due to error

steadyPoolSize -

connectionsFreedEvent

public void connectionsFreedEvent(String poolName,
                         String appName,
                         String moduleName,
                         int count)

Connections freed event

Parameters:

poolName -

count - number of connections freed to the pool

connectionUsedEvent

public void connectionUsedEvent(String poolName,
                       String appName,
                       String moduleName)

Connection used event

Parameters:

poolName -

connectionValidationFailedEvent

public void connectionValidationFailedEvent(String poolName,
                                   String appName,
                                   String moduleName,
                                   int increment)

Whenever connection leak happens, increment numConnFailedValidation

Parameters:

pool - JdbcConnectionPool that got a failed validation event

connectionRequestServedEvent

public void connectionRequestServedEvent(String poolName,
                                String appName,
                                String moduleName,
                                long timeTakenInMillis)

Event that a connection request is served in timeTakenInMillis.

Parameters:

poolName -

timeTakenInMillis -

connectionDestroyedEvent

public void connectionDestroyedEvent(String poolName,
                            String appName,
                            String moduleName)

When connection destroyed event is got increment numConnDestroyed.

connectionAcquiredEvent

public void connectionAcquiredEvent(String poolName,
                           String appName,
                           String moduleName)

When a connection is acquired increment counter

connectionReleasedEvent

public void connectionReleasedEvent(String poolName,
                           String appName,
                           String moduleName)

When a connection is released increment counter

connectionCreatedEvent

public void connectionCreatedEvent(String poolName,
                          String appName,
                          String moduleName)

When a connection is created increment counter

reset

public void reset()

Reset pool statistics. When annotated with @Reset, this method is invoked whenever monitoring is turned to HIGH from OFF, thereby setting the statistics to appropriate values.

connectionMatchedEvent

public void connectionMatchedEvent(String poolName,
                          String appName,
                          String moduleName)

When connection under test matches the current request , increment numConnSuccessfullyMatched.

connectionNotMatchedEvent

public void connectionNotMatchedEvent(String poolName,
                             String appName,
                             String moduleName)

When a connection under test does not match the current request, increment numConnNotSuccessfullyMatched.

connectionRequestQueuedEvent

public void connectionRequestQueuedEvent(String poolName,
                                String appName,
                                String moduleName)

When an object is added to wait queue, increment the waitQueueLength.

connectionRequestDequeuedEvent

public void connectionRequestDequeuedEvent(String poolName,
                                  String appName,
                                  String moduleName)

When an object is removed from the wait queue, decrement the waitQueueLength.

getPoolInfo

public org.glassfish.resourcebase.resources.api.PoolInfo getPoolInfo()

setPoolRegistry

public void setPoolRegistry(com.sun.enterprise.resource.pool.PoolLifeCycleListenerRegistry poolRegistry)

getPoolRegistry

public com.sun.enterprise.resource.pool.PoolLifeCycleListenerRegistry getPoolRegistry()

getNumPotentialConnLeakCount

@ManagedAttribute(id="numpotentialconnleak")
public org.glassfish.external.statistics.CountStatistic getNumPotentialConnLeakCount()

When a connection leak is observed, the monitoring statistics are displayed to the server.log. This method helps in segregating the statistics based on LOW/HIGH monitoring levels and displaying them.

Parameters:

poolName -

stackTrace -

getNumConnFailedValidation

@ManagedAttribute(id="numconnfailedvalidation")
public org.glassfish.external.statistics.CountStatistic getNumConnFailedValidation()

getNumConnTimedOut

@ManagedAttribute(id="numconntimedout")
public org.glassfish.external.statistics.CountStatistic getNumConnTimedOut()

getNumConnUsed

@ManagedAttribute(id="numconnused")
public org.glassfish.external.statistics.RangeStatistic getNumConnUsed()

getNumConnFree

@ManagedAttribute(id="numconnfree")
public org.glassfish.external.statistics.RangeStatistic getNumConnFree()

getConnRequestWaitTime

@ManagedAttribute(id="connrequestwaittime")
public org.glassfish.external.statistics.RangeStatistic getConnRequestWaitTime()

getNumConnDestroyed

@ManagedAttribute(id="numconndestroyed")
public org.glassfish.external.statistics.CountStatistic getNumConnDestroyed()

getNumConnAcquired

@ManagedAttribute(id="numconnacquired")
public org.glassfish.external.statistics.CountStatistic getNumConnAcquired()

getNumConnCreated

@ManagedAttribute(id="numconncreated")
public org.glassfish.external.statistics.CountStatistic getNumConnCreated()

getNumConnReleased

@ManagedAttribute(id="numconnreleased")
public org.glassfish.external.statistics.CountStatistic getNumConnReleased()

getNumConnSuccessfullyMatched

@ManagedAttribute(id="numconnsuccessfullymatched")
public org.glassfish.external.statistics.CountStatistic getNumConnSuccessfullyMatched()

getNumConnNotSuccessfullyMatched

@ManagedAttribute(id="numconnnotsuccessfullymatched")
public org.glassfish.external.statistics.CountStatistic getNumConnNotSuccessfullyMatched()

getAverageConnWaitTime

@ManagedAttribute(id="averageconnwaittime")
public org.glassfish.external.statistics.CountStatistic getAverageConnWaitTime()

getWaitQueueLength

@ManagedAttribute(id="waitqueuelength")
public org.glassfish.external.statistics.CountStatistic getWaitQueueLength()