Role and Beneﬁts of HP WebQoS | HP WebQoS Software instruction

Understanding HP WebQoS

The Role and Beneﬁts of HP WebQoS

Corrective Actions Corrective actions help bring the violated SLO or threshold into compliance. You conﬁgure and prioritize corrective actions, which are executed when a violation occurs.

There are three types of corrective actions:

•Redirect requests to another system.

•Defer requests for a few moments until current sessions are completed.

•Reject low priority customers in extreme overload conditions.

16

Chapter 1

Image 16

HP WebQoS Software manual Role and Beneﬁts of HP WebQoS

Contents

Edition E0801 Legal Notices Contents Services, Sites, and Systems Troubleshooting Policy and Rule Descriptions Synopsis Arguments Return Value Sample Program Contents Printing History Page Understanding HP WebQoS Role and Beneﬁts of HP WebQoS Role and Beneﬁts of HP WebQoS Service WebQoS ConceptsRequest Classiﬁcations Sessions Capacity Protection SLOs, Thresholds, and Corrective Actions Role and Beneﬁts of HP WebQoS How WebQoS Fits Into Your Environment WebQoS in Your Environment WebQoS Components WebQoS Components Component Installed On Description Management SCA ServiceWeb Services SCI Service How WebQoS Fits Into Your Environment Chapter Setup WebQoS Software Installation WebQoS Conﬁguration Files SCA and Web Server Parameter Web Server Parameters Default HTTP/1.1 MonitorInterval seconds SCA Parameters SCO Parameters Logging and Tracing Parameters Unix Only URL Encoding Parameters WebQoS setup Script Unix Restarting Individual WebQoS ComponentsRestarting WebQoS Components Unix Restarting WebQoS Components Windows Single Server Setup Continue? Multiple Server Setup Server 1 Setup Servers 2 and 4 Setup Server 3 Setup Opt/webqos/install/setup -r Removing WebQoS WebQoS setup Script Unix Chapter Management Console Management Console Login WebQoS Login Dialog Box Management Console Main Screen Console Main ScreenWindow Area Description Console Main Screen Services/Systems View Auto Discovery Console Administration Password Domain Management Console Administration Chapter Templates Default Templates Preconﬁgured and Default TemplatesPreconﬁgured Templates Service Template Description For the service template Service Template StatisticsService Statistics Statistics URL Group Statistics Service Template SLOs SLOs Add/Edit Service Level Objectives Add/Edit SLOs Add/Edit Corrective Actions Service Template Advanced Advanced Defer Defer Corrective Action Redirect Redirect Corrective Action Reject Reject Corrective Action Site Template 10 Site Template Description Classiﬁcation Rules 11 Site Template Classiﬁcation Rules Add/Edit Classiﬁcation Rules 12 Add/Edit Request Classiﬁcations Rules 13 Site Template SLOs Add/Edit SLOs 15Add/Edit Corrective Actions Threshold Policies 16 Site Template Threshold Policies Add/Edit Threshold Policies 17 Add Thresholds Dialog Box 18Add/Edit Corrective Actions 19 Edit Site Conﬁguration Advanced Dialog Box Session Timeouts 20 Site Advanced Session Timeouts Dialog Box Web Server Accept Threads Corrective Action Policy Details 22 Defer Corrective Action 23 Redirect Corrective Action 24 Reject Corrective Action Site Statistics 25 Site Template Statistics Site Template Site Template Chapter Services, Sites, and Systems Services Add a ServiceEdit a Service Move a Service Delete a Service Sites Add a SiteEdit a Site Move a Site Delete a Site Microsoft IISIPlanet Web Server Starting and Stopping IIS Add a System SystemsDelete a System Systems Systems Chapter Statistics Service Statistics Service SLO Related Statistics Service SLO Related Statistics Service Session Control Statistics Service Session Control Statistics Service Defer Related Statistics Service Defer Related Statistics Site Statistics Site Statistics Site SLO Related Statistics Site SLO Related Statistics Site Session Control Statistics Site Session Control Statistics Site Statistics Site Statistics Chapter Logs and Filters Service Level Objectives View Service Level Objectives ViewSLOs, Thresholds, and the History Log SLOs, Thresholds, and the History Log History Log View History Log View SLO and Threshold Filters SLO and Threshold Filters SLO Filters History Log Filter History Filters Dialog Chapter 103 OpenView Logs Service and Site StatisticsSite Measurements Policy and Corrective Action Events Field Values Chapter 107 108 Troubleshooting Management Console Error Messages Troubleshooting on UnixShared Memory Error Logging and Tracing Logging TracingMeasurement Logging Statistics Logging Chapter 113 Problems with Shared Memory Troubleshooting on WindowsResetting the Management Console Password Error Messages Viewable From the Management Console Logging and Tracing Registry Editor Window for WebQoS Deleting WebQoS Log and Trace Files 118 Policy and Rule Descriptions Request Classiﬁcation Rules Appendix a 121 Service Level Objectives for Site Policies Set in WebQoS Service Level Objectives for the Service Threshold Policy Corrective Actions for SLO and Threshold Policy Violations Customizing the Defer and Reject Web Pages 126 Appendix a 127 Request to be retried see Figure A-2 Figure A-2 Example of Custom Defer Page with Link Appendix a 129 Expired see Figure A-3 Figure A-3 Example of Custom Defer Page with Popup Dialog Appendix a 131 132 External Measurement API Using the External Measurement API Appendix B 135 WqCreateConnection SynopsisArguments Return Value WqSendMeasurement Values in the following format Return Values Status WqCloseConnection Connection with WebQoS has been closed Sample Program Appendix B 141 142 Glossary Class See request classiﬁcation rule 144 145 146 Index 148 149 150