Connection Pools: WebLogic

Connection Pools: WebLogic

Application server method of pooling and sharing connections to a database.

Extension

Product information
Release notes

Overview

Several built-in OneAgent extensions provide insight into connection pool performance and issues such as connection leaks. The extensions cover the following technologies: Apache Tomcat, Oracle WebLogic, IBM WebSphere Application Server, IBM WebSphere Liberty, and Red Hat JBoss and Wildfly.

Use cases

This extension collects connection pool performance, usage and availability metrics for Oracle Weblogic.

Prerequisites:

Oracle Weblogic process that runs on a supported Linux or Windows operating system.
OneAgent version 1.273+
Dynatrace version 1.273+

To get metric insight:

Install OneAgent on the virtual machine or server of your Oracle Weblogic process.
Activate the OneAgent feature Java Metric Extensions 2.0 (JMX).
Select in this same tile Add to environment to configure the extension.
Open the Weblogic Connection Pool Overview dashboard.

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Extension content

Content typeNumber of items included

screen injections

2

metric query

1

screen metric tables

1

generic relationship

1

dashboards

1

screen layout

1

screen chart groups

3

list screen layout

1

metric metadata

17

generic type

1

screen entities lists

1

Feature sets

Below is a complete list of the feature sets provided in this version. To ensure a good fit for your needs, individual feature sets can be activated and deactivated by your administrator during configuration.

Feature setsNumber of metrics included

Metric name	Metric key	Description	Unit
Max capacity	weblogic.connectionPool.maxCapacity	-	Count

Metric name	Metric key	Description	Unit
Current message count	weblogic.currentMessages	-	Count
Pending message count	weblogic.pendingMessages	-	Count

Metric name	Metric key	Description	Unit
Active connections	weblogic.connectionPool.activeConnectionsCurrentCount	-	Count
Current capacity	weblogic.connectionPool.currCapacity	-	Count
Leaked connections	weblogic.connectionPool.leakedConnectionCount.count	-	Count
Available connections (idle)	weblogic.connectionPool.numAvailable	-	Count
Waiting for connections	weblogic.connectionPool.waitingForConnectionCurrentCount	-	Count
Failed connection requests	weblogic.connectionPool.failedReserveRequestCount.count	-	Count
Reconnection failures	weblogic.connectionPool.failuresToReconnectCount.count	-	Count
Requests for connections	weblogic.connectionPool.reserveRequestCount.count	-	Count

Metric name	Metric key	Description	Unit
Stuck thread count	weblogic.stuckThreads	-	Count
Hogging thread count	weblogic.hoggingThreads	-	Count

Metric name	Metric key	Description	Unit
Statement cache size	weblogic.connectionPool.prepStmtCacheCurrentSize	-	Count
Statement cache hits	weblogic.connectionPool.prepStmtCacheHitCount.count	-	Count
Statement cache misses	weblogic.connectionPool.prepStmtCacheMissCount.count	-	Count

Full version history

To have more information on how to install the downloaded package, please follow the instructions on this page.

ReleaseDate

Full version history

Fixed a bug where these new metrics were not being captured correctly:

weblogic.currentMessages
weblogic.pendingMessages
weblogic.stuckThreads

Added a new metric:

weblogic.hoggingThreads

Full version history

Added three new metrics:

weblogic.currentMessages
weblogic.pendingMessages
weblogic.stuckThreads

Full version history

Fixed a bug were some metrics were counted as monotonic even if they were not. This fix changes the metric key for:
- weblogic.connectionPool.currCapacity.count -> weblogic.connectionPool.currCapacity
- weblogic.connectionPool.numAvailable.count -> weblogic.connectionPool.numAvailable
- weblogic.connectionPool.waitingForConnectionCurrentCount.count -> weblogic.connectionPool.waitingForConnectionCurrentCount
- weblogic.connectionPool.prepStmtCacheCurrentSize.count -> weblogic.connectionPool.prepStmtCacheCurrentSize

Full version history

Fixed a bug where func:weblogic.connectionPool.currentUsage was still not being populated

Full version history

Fixed a bug with metric keys that solves:

Metrics not showing on the overview dashboard
Metrics not showing up on the unified analysis screens
Metrics not having any metadata
The metric func:weblogic.connectionPool.currentUsage not being populated

Full version history

EF1 to EF2 Weblogic Connection Pool conversion:

Add Weblogic connection pool entity and its relation to the weblogic process
Custom unified analysis screen for Weblogic connection pools
Metric chart injection into Process Group Instance screen
Overview dashboard for Weblogic connection pools
Add feature sets to control included metrics
New metric func:weblogic.connectionPool.currentUsage that shows the current connection usage
All metrics have changed key from the EF1 version. The prefix builtin:tech.weblogic has been removed. This is a breaking change for any configuration you had which used the metric key, such as metric events.

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