8 Monitoring the WebLogic Persistent Store

This chapter explains how to monitor the WebLogic Server persistent store.

Monitoring a Persistent Store

You can monitor statistics for each existing persistent store and for each open store connection.

Monitoring Stores

Each persistent store is represented at run time by an instance of the PersistentStoreRuntimeMBean, which provides the following options.

Table 8-1 Persistent Store Run-time Options

Option	What It Does
CreateCount	Number of create requests issued to this persistent store.
ReadCount	Number of read requests issued to this persistent store.
UpdateCount	Number of update requests issued by this persistent store.
DeleteCount	Number of delete requests issued by this persistent store.
ObjectCount	Number of objects contained in the persistent store.
Connections	Number of active connections in the persistent store.
PhysicalWriteCount	Number of times the persistent store flushes its data to durable storage.

Monitoring Store Connections

For each open persistent store connection, the persistent store also registers a PersistentStoreConnectionRuntimemMBean, which provides the following options.

Table 8-2 Persistent Store Connection Runtime Options

Option	What It Does
CreateCount	Number of create requests issued to this connection.
ReadCount	Number of read requests issued to this connection.
UpdateCount	Number of update requests issued by this connection.
DeleteCount	Number of delete requests issued by this connection.
ObjectCount	Number of objects contained in the connection.

Table 8-3 defines most of the run-time prefix names of the WebLogic services and subsystems that can create a connection to the persistent store.

Table 8-3 Persistent Store Run-Time Prefix Names

Subsystem/Service	Run-Time Prefix Name
Deployment	weblogic.deploy.internal where `internal` is the name of the deployment connection
Diagnostic Service	weblogic.diagnostics.internal where `internal` is the logical name of the diagnostic archive connection
EJB Timer Services	weblogic.ejb.timer.internal where `internal` uniquely identifies EJB deployments in a server instance
JMS Service	JMS server: weblogic.messaging.jmsServer.internal where `internal` is the name of the JMS server connection JMS durable subscriber: weblogic.messaging.jmsServer.durablesubs.internal where `internal` is the name of the durable subscriber connection
JTA Transaction Log (TLOG)	weblogic.transaction.internal where `internal` is the name of the TLOG connection
Path Service	weblogic.messaging.PathService.internal where `internal` is the name of the path service connection
SAF Service	SAF agent weblogic.messaging.SAFAgent@server1.internal where `internal` is the name of the SAF agent's connection SAF durable subscriber: [email protected].internal where `internal` is the name of the durable subscriber connection
Web Services	weblogic.wsee.server.store.internal where `internal` is the name of the Web Service's connection