BMC Remedy Action Request System 7.6.04: BMC Remedy Mid Tier ...

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BMC Remedy Action Request System 7.6.04 About mid tier caching 192 BMC Remedy Mid Tier Guide The first time a form, view, or form and view combination is requested via the mid tier, performance can be impacted by the intensive processing necessary to obtain the form, field, active link, and associated information from AR Server. To minimize the usability impact of this performance hit, the mid tier configuration tool includes the following configuration options: Flush cache Removes all items from the mid tier cache. When the objects are requested, the most up-to-date versions are retrieved from the AR System server. For details about the Flush Cache feature see Table 1-4, “Flush Cache” on page 31. Sync cache Clears only objects that have changed on the server after the last cache clear event. In this case the mid-tier contacts AR Server and compares the lastchanged-timestamp on elements and synchronizes any changes. For details about the Sync Cache feature see “Sync cache option” on page 31. NOTE The Sync cache feature is not available for 7.1.0 and prior releases. Definition Change Check Interval This mid tier cache setting is configured to set an interval (in seconds) at which information in the cache is updated. The default value is 3600 seconds. For details about the Definition Change Check Interval setting see Table 1-4, “Definition Change Check Interval (seconds)” on page 21. Configuration recommendations Disable mid-tier Prefetch To maximize performance and usability, the following configuration practices are recommended: “Disable mid-tier Prefetch” on page 192 “Performance checking” on page 193 “Activate the Pre-Load option” on page 194 “Enable Cache Persistence” on page 195 “Clear the cache and restart the server” on page 195 Prefetch loads forms into memory based on a somewhat arbitrary list of forms configured in the prefetch Config.xml file by the system administrator. Forms and other cache objects end up in memory that may not ever be accessed by end users. This can waste valuable memory space.
Use the following steps to disable Prefetch. 1 From the mid tier configuration tool, click Cache Settings. Disable Prefetch 2 Scroll down to the Prefetch Configuration text box. 3 Remove the contents of the prefetchConfig.xmlfile. 4 Add the following content: Configuration recommendations 5 Click Save Changes. Performance checking Sync Cache eliminates the need for administrators to flush the entire mid-tier cache after a form, active link, menu, or other definition change on AR Server. When this feature is activated, the mid tier cache is automatically synchronized with the changed objects. The check is performed at the interval selected in the Definition Change Check Interval field. Activate the Perform Check feature: 1 Open the mid tier configuration tool and click Cache Settings. 2 On the Cache Settings page ensure that the Perform Check checkbox is selected. This activates Sync Cache. 3 Use the Definition Change Check Interval text box to configure the time (in seconds) interval for the sync to activate. NOTE An administrator can press the new Sync Cache button to have the changes synchronized immediately. The Sync Cache operation synchronizes any of the following objects, if the changed timestamp on AR Server is more recent than the cached item in the mid-tier cache: Forms Active links Appendix F Mid tier caching best practices 193
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BMC Remedy Action Request System 7.
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Customer Support You can obtain tec
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Contents Preface 11 Audience . . .
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Deleting report definitions. . . .
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Appendix F Mid tier caching best pr
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Preface Audience IMPORTANT The comp
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Release Notes Information about new
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Chapter 1 Configuring the mid tier
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Configuring the external firewall C
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Accessing the Mid Tier Configuratio
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Table 1-1: Overview settings (Conti
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Table 1-2: General settings General
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Table 1-2: General settings (Contin
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Table 1-3: AR Server settings Figur
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1 In the Mid Tier Configuration Too
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Table 1-4: Cache settings (Continue
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Persistent Cache option Cache setti
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Cache settings How the prefetch pro
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Cache settings arsystem.ehcache.re
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Table 1-5: Maximum number of elemen
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User and group permissions for pref
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Table 1-6: Report settings Setting
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Connection settings Connection sett
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Connection Pool Status Table 1-9: C
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Logging Table 1-10: Log settings (S
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View logs Activate profiling Change
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Real Number field Decimal Number f
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Chapter 2 Customizing AR System sty
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Order of precedence Overview of CSS
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Table 2-1: Style sheets used in AR
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Figure 2-2: Associating a customize
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Figure 2-3: Customized style for bo
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Chapter 3 Working with applications
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Click this arrow to hide the toolba
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Header text Customizing views for f
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Table 3-1: Form Action fields (Shee
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Customizing views for forms in brow
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Figure 3-5: Application Properties
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URLs for forms and applications As
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Table 3-2: Supported parameters (Sh
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Figure 3-6: URL encoder utility 1 O
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URLs for forms and applications The
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URLs for forms and applications 6 C
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Using the Object List Using the Obj
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How a view is selected For the mid
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Including parameters in saved or de
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Form help text Field help text Figu
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Chapter 4 Configuring AR System for
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Figure 4-2: Designing a report Abou
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Managing reports with the Report fo
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Report form fields used by applicat
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Running a report by using an Open W
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Managing localized Crystal and Web
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Managing localized Crystal and Web
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Defining report types Defining repo
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Recommended entries Table 4-4: Run
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Setting limits on reports that user
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Chapter 5 Using Crystal reports wit
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Mid tier installation options for C
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Configuring BusinessObjects Enterpr
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Report definitions for Crystal repo
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ODBC driver configuration for Cryst
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Crystal Reports tips for the Web 8
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Appendix A For your end users: Tips
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Creating requests To restore the f
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Creating requests NOTE The rich-tex
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3 Complete the following fields: 4
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How the Back button behaves How the
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Appendix B For your end users: Runn
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Finding a request by example Param
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Page 147 and 148: Values Using the advanced search ba
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Page 151 and 152: Saving searches To find all request
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Page 155 and 156: Appendix C For your end users: Crea
Page 157 and 158: “Adding to or overriding a report
Page 159 and 160: Running reports Finding reports Run
Page 161 and 162: Running reports TIP Although you ca
Page 163 and 164: Exporting AR System reports Running
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Page 167 and 168: 3 Delete, disable, or enable report
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Page 171 and 172: Creating reports For example, a tub
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Page 175 and 176: Using the advanced query builder Cr
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Page 179 and 180: Creating reports Entries that are s
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Page 185 and 186: Appendix D For your end users: Usin
Page 187 and 188: Drilling down to information in fla
Page 189 and 190: Appendix E ITSM 7.0.00 applications
Page 191: Appendix F Mid tier caching best pr
Page 195 and 196: 3 Select the Pre-Load checkbox next
Page 197 and 198: Create, modify, or delete a form C
Page 199 and 200: Index A A B C D E F G H I J K L M N
Page 201 and 202: J A B C D E F G H I J K L M N O P Q
Page 203 and 204: A B C D E F G H I J K L M N O P Q R
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