apm_9.5--apm for ibm websphere application server zos guide
TRANSCRIPT
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for IBM WebSphere Application Server forz/OS Guide
Release 9.5
CA Application PerformanceManagement
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This Documentation, which includes embedded help systems and electronically distributed materials, (hereinafter referred to
as the Documentation) is for your informational purposes only and is subject to change or withdrawal by CA at any time.
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Copyright 2013 CA. All rights reserved. All trademarks, trade names, service marks, and logos referenced herein belong totheir respective companies.
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CA Technologies Product References
This document references the following CA Technologies products and features:
CA Application Performance Management (CA APM)
CA Application Performance Management ChangeDetector (CA APM
ChangeDetector)
CA Application Performance Management ErrorDetector (CA APM ErrorDetector)
CA Application Performance Management for CA Database Performance (CA APM
for CA Database Performance)
CA Application Performance Management for CA SiteMinder (CA APM for CA
SiteMinder)
CA Application Performance Management for CA SiteMinder Application ServerAgents (CA APM for CA SiteMinder ASA)
CA Application Performance Management for IBM CICS Transaction Gateway (CA
APM for IBM CICS Transaction Gateway)
CA Application Performance Management for IBM WebSphere Application Server
(CA APM for IBM WebSphere Application Server)
CA Application Performance Management for IBM WebSphere Distributed
Environments (CA APM for IBM WebSphere Distributed Environments)
CA Application Performance Management for IBM WebSphere MQ (CA APM for
IBM WebSphere MQ)
CA Application Performance Management for IBM WebSphere Portal (CA APM forIBM WebSphere Portal)
CA Application Performance Management for IBM WebSphere Process Server (CA
APM for IBM WebSphere Process Server)
CA Application Performance Management for IBM z/OS (CA APM for IBM z/OS)
CA Application Performance Management for Microsoft SharePoint (CA APM for
Microsoft SharePoint)
CA Application Performance Management for Oracle Databases (CA APM for Oracle
Databases)
CA Application Performance Management for Oracle Service Bus (CA APM for
Oracle Service Bus) CA Application Performance Management for Oracle WebLogic Portal (CA APM for
Oracle WebLogic Portal)
CA Application Performance Management for Oracle WebLogic Server (CA APM for
Oracle WebLogic Server)
CA Application Performance Management for SOA (CA APM for SOA)
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CA Application Performance Management for TIBCO BusinessWorks (CA APM for
TIBCO BusinessWorks)
CA Application Performance Management for TIBCO Enterprise Message Service
(CA APM for TIBCO Enterprise Message Service)
CA Application Performance Management for Web Servers (CA APM for Web
Servers)
CA Application Performance Management for webMethods Broker (CA APM for
webMethods Broker)
CA Application Performance Management for webMethods Integration Server (CA
APM for webMethods Integration Server)
CA Application Performance Management Integration for CA CMDB (CA APM
Integration for CA CMDB)
CA Application Performance Management Integration for CA NSM (CA APM
Integration for CA NSM)
CA Application Performance Management LeakHunter (CA APM LeakHunter)
CA Application Performance Management Transaction Generator (CA APM TG)
CA Cross-Enterprise Application Performance Management
CA Customer Experience Manager (CA CEM)
CA Embedded Entitlements Manager (CA EEM)
CA eHealth Performance Manager (CA eHealth)
CA Insight Database Performance Monitor for DB2 for z/OS
CA Introscope
CA SiteMinder
CA Spectrum Infrastructure Manager (CA Spectrum)
CA SYSVIEW Performance Management (CA SYSVIEW)
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Contact CA Technologies
Contact CA Support
For your convenience, CA Technologies provides one site where you can access the
information that you need for your Home Office, Small Business, and Enterprise CA
Technologies products. Athttp://ca.com/support,you can access the following
resources:
Online and telephone contact information for technical assistance and customer
services
Information about user communities and forums
Product and documentation downloads
CA Support policies and guidelines
Other helpful resources appropriate for your product
Providing Feedback About Product Documentation
If you have comments or questions about CA Technologies product documentation, you
can send a message [email protected].
To provide feedback about CA Technologies product documentation, complete our
short customer survey which is available on the CA Support website at
http://ca.com/docs.
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Contents 7
Contents
Chapter 1: Introduction 9
Introduction ................................................................................................................................................................. 9
System Requirements .................................................................................................................................................. 9
Chapter 2: Installing the Extension 11
How to Install the Extension ...................................................................................................................................... 11
Extract the Installation Files ................................................................................................................................ 11
Install the Management Module ........................................................................................................................ 12
Install the Tab Extensions.................................................................................................................................... 12
Configure the Agent Profile................................................................................................................................. 13
Chapter 3: Using the Extension 15
Start the Extension ..................................................................................................................................................... 15
Configuration Changes Reflected in Dashboards ................................................................................................ 15
Dashboards and the Investigator ............................................................................................................................... 16
Overview Dashboard ........................................................................................................................................... 17
HTTP Session Objects Dashboard ........................................................................................................................ 17
JDBC Connections and Web Container Dashboard ............................................................................................. 18
Thread Pools Dashboard ..................................................................................................................................... 19
View Summary Metrics .............................................................................................................................................. 20View the HTTP Session Objects ........................................................................................................................... 20
View the Web Container ..................................................................................................................................... 20
View Individual Requests .................................................................................................................................... 21
View Request Details .......................................................................................................................................... 21
Appendix A: Metrics 23
WebSphere for z/OS Metrics...................................................................................................................................... 23
WebSphere 7 Metrics ................................................................................................................................................. 26
Appendix B: Frequently Asked Questions 29
Why Do I Use the Extension to Monitor my WebSphere Application Server?........................................................... 29
Why Are There Empty Panels in the Dashboards? ..................................................................................................... 29
Why Are Not All the Metrics in the Documentation? ................................................................................................ 30
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Chapter 1: Introduction 9
Chapter 1: Introduction
This section contains the following topics:
Introduction(see page 9)
System Requirements(see page 9)
Introduction
The extension lets CA Introscope administrators monitor the health and performance
of IBM WebSphere Application Server on z/OS.
The extension uses a .PBD file to add custom tracers to your WebSphere .JAR files.
Preconfigured dashboards and alerts let you monitor the following performance metricsin a WebSphere environment:
System health
HTTP session objects (WebSphere Application Server-specific)
JDBC connection pools (WebSphere Application Server-specific)
Web containers (WebSphere Application Server-specific)
System Requirements
For supported versions of the extension, see the APM Extensions section of the
Compatibility Guide.
Note: Valid for CA Introscope 9.0.5 --The Japanese version of the extension only
works with CA Introscope 9.0.5.
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Chapter 2: Installing the Extension 11
Chapter 2: Installing the Extension
This section contains the following topics:
How to Install the Extension(see page 11)
How to Install the Extension
Installing the extension involves the following steps:
1. Extract the installation files.(see page 11)
2. Install the Management Module(see page 12).
3. Install the tab extensions(see page 12).
4.
Configure the agent profile(see page 13).
Extract the Installation Files
The extension for IBM WebSphere for z/OS includes the following installation package
archives:
OS Filename
Windows ExtensionforWebsphere6.1and7zOSvwindows.zip
z/OS ExtensionforWebsphere6.1and7zOSvebcdic.tar
UNIX ExtensionforWebsphere6.1and7zOSvunix.tar
The in the filename is the version of the IBM WebSphere for z/OS extension.
Extract the extension for IBM WebSphere for z/OS archive appropriate to your system.
Important!If you use FTP ASCII mode to transfer the .TAR installer or its files to the z/OS
platform, the files are corrupted.
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How to Install the Extension
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The following files are included in the archive:
File Description
APM_for IBM_Websphere_AppServer_zOS_EN.pdf This user guide
PPWebSphere6.1zOS.pbd
PPWebSphere7zOS.pbd
The ProbeBuilder Directive file defines
which metrics will be collected and CA
Introscope enables the application
PPWebSphere6.1and7zOS.typeviewers.xml The tab extensions installation archive file
PPWebSphere6.1zand7OS_ManagementModule.jar The Management Module files installation
archive file
Install the Management Module
To provide CA Introscope with the monitoring configuration information for the
extension, install the Management Module.
Follow these steps:
1.
Shut down the Enterprise Manager.
2. Copy the extracted installation archive file,
PPWebSphere6.1and7zOS_ManagementModule.jar, to the Enterprise Manager
Management Module directory as follows:
\config\modules
Install the Tab Extensions
To provide support for the various views, install the tab extensions.
Follow these steps:
1.
Verify that the xmltv directory exists. If the xmltv directory does not exist, create it.
2. Copy the extracted installation archive file,
PPWebSphere6.1and7zOS.typeviewers.xml, to the CA Introscope directory:
/ext/xmltv
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How to Install the Extension
Chapter 2: Installing the Extension 13
Configure the Agent Profile
To collect data for the extension, configure the CA Introscope agent profile.
Follow these steps:
1. Stop the WebSphere server.
2.
Copy the .PBD file that corresponds to your version of WebSphere to the \wily
directory. For example, the PPWebSphere7zOS.pbd corresponds to WebSphere 7.0.
3. Add the respective .PBD file name to the Introscope.autoprobe.directives
parameter in the IntroscopeAgent.profile file.
Example:
Introscope.autoprobe.directives=websphere-typical.pbd, PPWebSphere7zOS.pbd
Important!If you are using WebSphere 6.1 or 7.0 with Introscope 8.0 through 9.5,
comment out the ws70x.pbd file entry in the websphere-full.pbl and
websphere-typical.pbl files. Otherwise, CA Introscope skips an important filenecessary for WebSphere and does not display the "WebSphere|Managed JDBC
Connections" metrics for WebSphere 6.1 or 7.0.
4. Restart the WebSphere server.
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Chapter 3: Using the Extension 15
Chapter 3: Using the Extension
This chapter outlines how to use the extension for IBM WebSphere.
This section contains the following topics:
Start the Extension(see page 15)
Dashboards and the Investigator(see page 16)
View Summary Metrics(see page 20)
Start the Extension
You start the extension and use it to view metrics and dashboards.
Follow these steps:
1. Start WebSphere.
2.
Start the Enterprise Manager and Workstation.
3. Log in to the Workstation.
4. Navigate to the Investigator window.
WebSphere server-specific metrics appear under the WebSphere node. A number
of possible metrics that the extension collects appears. A subset of these metrics
appears in your own environment, depending on which WebSphere resources your
applications use.
5. Open the console.
The extension provides a number of preconfigured dashboards for displaying
WebSphere performance metrics. A subset of these metrics appears in your
environment, as the metrics you see depend on which WebSphere resources your
applications use.
Configuration Changes Reflected in Dashboards
The extension dashboards provide real-time feedback on the effects of configuration
changes. To map some of the metrics in the dashboards with the WebSphere
configuration parameters, use this section. WebSphere configuration parameters can bemodified using the WebSphere Admin Console.
Note: Use the information in this table as a general guideline for fine-tuning
WebSphere. Consult CA Technologies Professional Services on further fine-tuning your
WebSphere environment.
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Dashboards and the Investigator
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The following items are the dashboard graphs and the associated metrics.
JDBC Connection Pool Response Time
If this value increases significantly generating a warning or problem (red) zone,
consider changing the size of your HTTP server JDBC connection pool. To allow yourWebSphere Application Server to handle more simultaneous JDBC requests, use the
WebSphere Admin console.
Live HTTP Sessions
Gives insight into the number of active user sessions your application server is
servicing. To improve throughput, consider increasing memory or available CPU.
Aggregate HTTP Sessions Invalidated
As user sessions are invalidated (logged out) by the application server, growth in
this graph occurs.
Aggregate HTTP Sessions Timed Out
As the application server times out user sessions, growth in this graph occurs.
The extension for IBM WebSphere for z/OS comes with default caution/danger alert
thresholds for many of the performance metrics displayed in the dashboards. Consult
the CA APM Workstation User Guidefor instructions about customizing these alerts and
thresholds for your environment.
Dashboards and the Investigator
All the extension dashboards begin with WebSphere. This naming
distinguishes them from other Management Module dashboards already installed in CAIntroscope.
The dashboards in the extension contain visual elements (alerts, graphs, and so forth)
that display specific monitored WebSphere performance metrics.
Alerts visually indicate metrics that have exceeded predefined thresholds. Graphs
display metric values over time. Alerts occur when warning and danger threshold levels
have been triggered.
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Dashboards and the Investigator
Chapter 3: Using the Extension 17
Overview Dashboard
The WebSphereX - Overview dashboard is the top-level dashboard and it displays
high-level status for the WebSphere platform. This dashboard groups WebSphere
resources in three major categories:
HTTP Session Object Count
JDBC Connection Pool Response Time
Web Container Service Response Time
An Overview dashboard alert that turns red indicates you can drill down to the specific
metrics that triggered the alert. The list following the screen shot includes the
dashboard graph labels and their corresponding WebSphere performance metrics.
The following times are the dashboard graphs and the associated metrics.
HTTP Session Object CountWebSphere|HTTP Session Objects:Live HTTP Sessions Count
JDBC Connection Pool Response Time
WebSphere|Managed JDBC Connections|Connection Request: Average Response
Time (ms)
Web Container Service Response Time
WebSphere|Web Container: Average Service Request Time (ms)
The Web Container Service Response Time and the Average Service Request Time
represent the same metric.
HTTP Session Objects Dashboard
The HTTP Session Objects dashboard presents a graphical representation of aggregate
and average metric data relating to HTTP session traffic and persistent sessions.
The following items are the dashboard graphs and their associated WebSphere
performance metrics.
Active HTTP Sessions
WebSphere|HTTP Sessions Objects:Live HTTP Sessions Count
Aggregate HTTP SessionsWebSphere|HTTP Sessions Objects:Aggregate Active HTTP Session Count
Aggregate HTTP Sessions Invalidated
WebSphere|HTTP Sessions Objects:Aggregate Invalidated HTTP Session Count
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Dashboards and the Investigator
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Aggregate HTTP Sessions TimedOut
WebSphere|HTTP Sessions Objects:Aggregate Timed Out HTTP Session Count
Average Get JDBC Connection Time
WebSphere|HTTP Sessions Objects|Get JDBC Connection:Average Response Time
(ms)
Average Persist Session Time
WebSphere|HTTP Session Objects|Get JDBC Connection and Persist
Session|Average Response Time (ms)
Average Read Session Time
WebSphere|HTTP Session Objects|Get JDBC Connection and Read
Sessions|Average Response Time (ms)
Read Cache Hit
WebSphere|Persistent HTTP Session Objects|Persistent Session ReadCache:Aggregate Count
JDBC Connections and Web Container Dashboard
The JDBC Connections & Web Container dashboard presents a graphical representation
of aggregate and average metric data relating to Managed JDBC connection resources
and web containers.
The following items are the dashboard graphs and their associated WebSphere
performance metrics.
JDBC Connection Attempts Per Interval
WebSphere|Managed JDBC Connections|Connection Request:Responses Per
Interval
Aggregate JDBC Connections Used Count
WebSphere|Managed JDBC Connections:Aggregate Connections Opened/Closed
Count
Average Get Connection Time
WebSphere|Managed JDBC Connections|Connection Request:Average Response
Time (ms)
Average Close Connection Time
WebSphere|Managed JDBC Connections|Connection Close:Average Response Time
(ms)
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Dashboards and the Investigator
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Average Service Response Time
WebSphere|Web Container:Average Service Request Time (ms)
Note: Average Service Response Time and Average Service Request Time represent
the same metric.
Service Requests per Interval
WebSphere|Web Container:Service Requests Per Interval
Servlet Exception Count
WebSphere|Web Container:Servlet Exception Count
Thread Pools Dashboard
The Thread Pools dashboard shows the activity of the two primary WebSphere internal
pools.
The Threads Created metric tracks the total number of threads (z/OS Task Control
Blocks) that WebSphere has dynamically created during its processing.
The Threads Destroyed metric tracks the total number of threads (z/OS Task Control
Blocks) that WebSphere has dynamically destroyed/freed during its processing.
The Managed JDBC Connections Pool shows the number of JDBC Connection Requests
Per Interval and the total aggregate requests that WebSphere made to the database.
WebSphere uses internally managed JDBC sessions for processing HTTP Session objects
that are using a database to save shopping cartdata, and so forth. Internally managed
JDBC sessions are also used when WebSphere is processing (EJB) container-managed
activities that use a database as a backing store.
The following items are the dashboard graphs and their associated WebSphere
performance metrics.
WebSphere Created Threads
WebSphere|Threads|ThreadPool:Thread Create
WebSphere Destroyed Threads
WebSphere|Threads|ThreadPool:Thread Destroy
Aggregate JDBC Sessions
WebSphere|Managed JDBC Connections:Aggregate Connections Opened/ClosedCount
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View Summary Metrics
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View Summary Metrics
To view summary metrics, select these WebSphere nodes in the Investigator tree.
The extension displays an aggregate tab of summary metrics:
HTTP Session Objects
Web Containers
Servlets
View the HTTP Session Objects
To view the WebSphere HTTP session objects information, select the WebSphere HTTP
Session Objects node in the Investigator tree.
The Investigator displays the HTTP Session Objects tab view.
The HTTP Session tab view includes the Aggregate Active HTTP Sessions Count tab,
which presents a graphical representation of:
Aggregate Active HTTP Sessions Count
New HTTP Sessions Count Per Interval
Aggregate Invalidated HTTP Sessions Count
Aggregate Timed Out HTTP Sessions Count
View the Web Container
To view the web container information, select the WebSphere Web Container node in
the Investigator tree.
The Investigator displays the Web Container tab view.
The Web Container tab view includes the Aggregate Requests Graphical Summary tab
which presents a graphical representation of:
Aggregate Requests
Service Requests Per Interval
Average Service Request Time (ms)
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View Summary Metrics
Chapter 3: Using the Extension 21
View Individual Requests
To view individual requests, select the WebSphere Individual Requests node in the
Investigator tree.
The Investigator displays the Individual Requests tab view.
The Individual Requests tab view includes the Aggregate Requests Tabular Summary
tab, which presents a summary table of Web Container Requests.
View Request Details
To view request details, select the WebSphere Request Details node in the Investigator
tree.
The Investigator displays the Request Details tab view.
The Request Details tab view includes:
The Web Container Request Details View for each servlet or EJB
A graphical representation of an aggregate of requests
Responses per interval
The overall average response time
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Chapter 3: Using the Extension 23
Appendix A: Metrics
This section contains the following topics:
WebSphere for z/OS Metrics(see page 23)
WebSphere 7 Metrics(see page 26)
WebSphere for z/OS Metrics
The following metrics are available for use in WebSphere for z/OS:
WebSphere|HTTP Session Objects:Aggregate Active HTTP Sessions Count
Aggregate of all active HTTP session objects processed.
WebSphere|HTTP Session Objects:Aggregate Invalidated HTTP Sessions Count
Aggregate of all logouts and invalidated user HTTP session objects.
WebSphere|HTTP Session Objects:Aggregate Live HTTP Sessions Count
Aggregate of all HTTP session objects that the system queues and processes.
WebSphere|HTTP Session Objects:Aggregate Read External Session Data Count
Aggregate of all Reads to read back HTTP session objects.
WebSphere|HTTP Session Objects:Aggregate Timed Out HTTP Sessions Count
Aggregate of timed out user HTTP session objects.
WebSphere|HTTP Session Objects:Aggregate Write External Session Data Count
Aggregate of all Writes to write out an HTTP session object.
WebSphere|HTTP Session Objects:Average Response Time
Average response time for HTTP session objects.
WebSphere|HTTP Session Objects:Concurrent Invocations
Total number of concurrent invocations.
WebSphere|HTTPSession Objects:Live HTTP Sessions Count
Number of HTTP session data objects currently queued in the system.
WebSphere|HTTP Session Objects:New HTTP Sessions Count Per IntervalNumber of new HTTP session objects created in the last time (15 second) interval.
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WebSphere for z/OS Metrics
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WebSphere|HTTP Session Objects:New Invalidated HTTP Sessions Count Per Interval
Number of HTTP session objects invalidated in the late time (15 second) interval.
WebSphere|HTTP Session Objects:New Timed Out HTTP Sessions Count Per Interval
Number of HTTP session objects that timed out in the last reported interval.
WebSphere|HTTP Session Objects|Get JDBC Connection:Aggregate Count
Aggregate number of JDBC Connections that HTTP session objects per interval
requested.
WebSphere|HTTP Session Objects|Get JDBC Connection:Average Response Time (ms)
Average response time of HTTP session objects that are attempting to get a JDBC
Connection.
WebSphere|HTTP Session Objects|Get JDBC Connection:Responses Per Interval
The number of JDBC Connection responses per interval.
WebSphere|HTTP Session Objects|Get JDBC Connection and Persist
Sessions:Aggregate Count
Aggregate count of persisted session requests by HTTP session objects.
WebSphere|HTTP Session Objects|Get JDBC Connection and Persist Sessions:Average
Response Time (ms)
Average response time of HTTP session objects attempting to get a JDBC
Connection to persist the associated session object.
WebSphere|HTTP Session Objects|Get JDBC Connection and Persist
Sessions:Responses Per Interval
Number of responses for persisted HTTP session objects per Interval.
WebSphere|HTTP Session Objects|Get JDBC Connection and Read Sessions:Aggregate
Count
Aggregate count of session objects read in from JDBC backed table because of
requests from HTTP session objects.
WebSphere|HTTP Session Objects|Get JDBC Connection and Read Sessions:Average
Response Time (ms)
Average length of time that is required to obtain a JDBC Connection and read in a
persisted HTTP session object.
WebSphere|HTTP Session Objects|Get JDBC Connection and Read Sessions:Responses
Per IntervalNumber of JDBC responses during the last time interval.
WebSphere|Managed JDBC Connections: Aggregate Connections Opened/Closed
Count
Aggregate number of Managed JDBC Connections that performed the sequence of:
Open, process data, and then close.
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WebSphere for z/OS Metrics
Chapter 3: Using the Extension 25
WebSphere|Managed JDBC Connections|Connection Close:Average Response Time
(ms)
Average response time for a connection close request.
WebSphere|Managed JDBC Connections|Connection Close:Responses Per Interval
Number of connection close responses per interval.
WebSphere|Managed JDBC Connections|Connection Request: Average Response
Time (ms)
Average JDBC get connection request response time.
WebSphere|Managed JDBC Connections|Connection Request:Responses Per Interval
Number of connection requests to a JDBC per interval.
WebSphere|Web Container:Aggregate Requests
Aggregate of all web container requests invoked.
WebSphere|Web Container:Average Service Request Time (ms)
Average responsiveness of all requests to the application server.
Note: Average Service Request Time and Average Service Response Time represent
the same metric.
WebSphere|Web Container:Service Requests Per Interval
Number of requests per Interval to the application server.
WebSphere|Web Container:Servlet Exception Count
Unhandled servlet exceptions that occurred while dispatching a servlet (or JSP)
request.
WebSphere|Web Container|Individual Requests|:Aggregate
Requests
Aggregate of requests that are made to appserver, for the specified servlet class
name.
WebSphere|Web Container|Individual Requests|: Average
Response Time (ms)
Average response time of requests to appserver by the servlet class name.
WebSphere|Web Container|Individual Requests|:Concurrent
Invocations
Number of concurrent invocations.WebSphere|Web Container|Individual Requests|:Errors Per
Interval
Number of errors per interval by servlet.
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WebSphere 7 Metrics
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WebSphere|Web Container|Individual Requests|:Responses Per
Interval
Number of responses per interval that are made per servlet class name.
WebSphere|Web Container|Individual Requests|:Stall Count
Number of stalls per servlet class name.
WebSphere 7 Metrics
The following metrics apply to WebSphere 7 only.
WebSphere|Managed DBMS Connections:Aggregate Connections Opened/Closed
Count
Aggregate number of database (DBMS) related connections that the WebSphere
"Managed RDB" support used. This support is primarily invoked as part of Container
Managed persistence, and related activities.
WebSphere|Managed DBMS Connections:Currently Active Connections Count
Number of JDBC connections currently in use by WebSphere. These connections
can be in use for such things as:
HTTP Session objects
Container Managed persistence
Other activities using WebSphere Managed JDBC sessions
WebSphere|Managed DBMS Connections|Connection Request:Average Response
Time (ms)
Average response time for requests that are sent to a back-end database (DBMS),
as part of the WebSphere "Managed RDB" support.
WebSphere|Managed DBMS Connections|Connection Request:Responses Per Interval
Number of requests that are sent to a back-end database, over a 15-second
interval, as part of the WebSphere "Managed RDB" support.
WebSphere|Managed DBMS Connections|Connection Close:Average Response Time
(ms)
Average response time for closing a connection to a back-end database, as part of
the WebSphere "Managed RDB" support. Gives an approximation of the amount of
overhead that occurred during termination of a database request.
WebSphere|Managed DBMS Connections|Connection Close:Responses Per Interval
Total count of connection closes issued to a back-end database as part of the
WebSphere "Managed RDB" support.
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WebSphere|Managed DBMS Connections:Aggregate Connection Errors Count
Total count of connection errors that were encountered while trying to connect to a
back-end database as part of the WebSphere "Managed RDB" support.
WebSphere|Managed DBMS Connections:Connection Errors Per Interval
Number of errors occurring over a 15-second interval, when trying to connect to a
database, as part of the WebSphere "Managed RDB" support. A spike in these
numbers usually indicates that either the database crashed or the physical
connection (network, channel, and so forth) to the database failed.
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Appendix B: Frequently Asked Questions
This section contains the following topics:
Why Do I Use the Extension to Monitor my WebSphere Application Server?(see page
29)
Why Are There Empty Panels in the Dashboards?(see page 29)
Why Are Not All the Metrics in the Documentation?(see page 30)
Why Do I Use the Extension to Monitor my WebSphereApplication Server?
Symptom:
Why do I use the extension to monitor my WebSphere Application Server?
Solution:
The extension monitors a number of WebSphere operations that the IBM WebSphere
Development team provided details. The extension monitors operations, which are
deemed performance-critical by IBM. The extension also comes with preconfigured
dashboards for monitoring performance metrics on other attributes, such as:
GC Heap
Sockets Bandwidth
File input/output Rate
JSP / Servlet / JDBC performance
Why Are There Empty Panels in the Dashboards?
Symptom:
Why am I seeing empty panels in the dashboards?
Solution:
The dashboards are created to showcase a general set of performance metrics out of
the extension. You are seeing empty panels because your applications do no use those
metrics. To customize the dashboard and the extension for your application
environment, consult CA Technologies Professional Services.
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Why Are Not All the Metrics in the Documentation?
Why Are Not All the Metrics in the Documentation?
Symptom:
Why am I not seeing all the metrics listed in the documentation?
Solution:
You only see performance data for those WebSphere resources/components that your
application uses.