Configuring Oracle Web Cache for Caching a Java EE Application文档格式.docx

Configuring Oracle Web Cache for Caching a Java EE Application文档格式.docx

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∙Availability:

Throughsurgeprotection,clustering,loadbalancing,andfailover

∙Developerproductivity:

Noneedtorollyourowncachemeansfastertime-to-market

∙Bottomline:

Reducedloadonapplicationanddatabaseserverstranslatesintoinfrastructurecostsavings

*ESIisasimplemarkuplanguageusedtodefinecomponentsofaWebpagefordynamicassemblyanddeliveryofWebapplicationsattheedgeoftheInternet.MoreinformationaboutESIisavailableat

SoftwareandHardwareRequirements（Optional）

Thefollowingisalistofsoftwarerequirements:

Item

Specification

ProcessorType

IntelXeonorPentiumIV

ProcessorSpeed

2.4GHzorhigher

NumberofProcessors

1ormore（ifrequired）

Memory

2GB

HardDiskSpace

20GB（initialsize）

OperatingSystem

RedHatEnterpriseLinux4Update5

Prerequisites

Beforestartingthistutorial,youshould:

1.

HaveaninstanceofOracleWebLogicServer10.3.

2.

Haveconfiguredadomain.

3.

Downloadandunzipthewebapp.zipfileonyourmachine.DeploytheWebAppWar.warfiletotheapplicationWebserver.

ConfiguringportconfigurationforOracleWebCachewithOPMN

OracleWebCacheusesHTTPorHTTPSlisteningporttoreceiverequests.Youcanalsoaddlisteningports,ifnecessary.Forexample,itmaybenecessarytoaddalisteningporttoassignOracleWebCacheaportthatanoriginserverwaspreviouslylisteningon.

Inadditiontoalisteningport,OracleWebCachealsoreceivesrequestsfortheadminserverprocess,invalidation,andstatisticsmonitoringrequestsonspecificHTTPorHTTPSlisteningports.

VerifyingportconfigurationforOracleWebCache

VerifyingportconfigurationforOracleWebCachewithFusionMiddlewareControl

AddinganOracleWebCachelisteningport

SpecifySitedefinitions

MapsitedefinitionstoOriginServers

TodetermineportsinusebyOracleWebCachewithOPMN,executethefollowingcommands:

NavigatetoyourORACLE_INSTANCE/bindirectoryandexecuteopmnctlstatus-lcommand.Forexample:

$cd/u01/app/oracle/product/fmw/11.1.1.1/as_1/opmn/bin/opmnctlstatus-l

Inthisexample:

Port7785istheHTTPlisteningportforOracleWebCache,representedbyhttp_

listen.

Port7786istheHTTPlisteningportfortheadminserverprocess,representedby

WebCache-admin

Port7787istheHTTPlisteningportforstatisticsmonitoringrequests,represented

byhttp_stat.

Port7788istheHTTPlisteningportforinvalidationrequests,representedby

http_invalidation.

Port7789istheHTTPlisteningportforOracleWebCache,representedbyhttps_

EnterthefollowingURLtodisplayFusionMiddlewareControl.

http:

//<

hostname>

.<

domain>

:

<

port>

/em

EntertheOracleFusionMiddlewareadministratorusernameandpassword.ClickLogin.

Fromthenavigationpane,expandthefarmandthentheWebTierinstallationtype,andselectOracleWebCachecomponent.FromtheWebCachemenu,selectPortUsage.

ThePortsUsagepagedisplays.

Youcanaddlisteningports,ifnecessary.Forexample,itmaybenecessarytoaddlisteningporttoassignOracleWebcacheaportthatanoriginserverwaspreviouslylisteningon.ToaddanHTTPlisteningport:

FromtheWebCachemenu,selectAdministration>

PortsConfiguration.

Theportsconfigurationpagedisplays.ClickCreate.TheCreatePortpageappears.

FromthePortTypelist,selectNORM.IntheIPAddressfield,selectANYtorepresentanyIPaddress.InthePortfield,enterthelisteningportfromwhichOracleWebCachereceivesclientrequestsfortheWebsite.Ensurethatthisportnumberisnotalreadyinuse.Forexample,enter7890.

ClickOK.

4.

ClickWebCache>

Control>

RestarttorestartOracleWebCache.

ClickRestarttoconfirm.

ClickClosewhentherestartoperationcompletessuccessfully.

OracleWebCachecachesandassemblesdynamiccontentforoneormoreWebsites.WhenOracleWebCachereceivesabrowserrequestforadocument,itdeterminesthedestinationsitebyusingoneofthefollowingelements:

∙Hostrequest-headervaluefromtherequest

∙HostportionoftherequestedURL

OracleWebCachethenlooksuptheconfiguredsitesettingsandmappingstodeterminewhetherthesiteissupported,andtheapplicationWebserversorproxyserversandcachingrulesforthesite.

Toconfigureasitedefinition,navigatetotheOracleWebCacheHomepageinFusionMiddlewareControl.FromtheWebCachemenu,selectAdministration>

Sites.

.

TheSitespageisdisplayed.FromtheSiteDefinitionssection,clickCreatetoaddanewsite.

EnterthefollowinginformationtoconfigureOracleWebCachewithinformationaboutthenamedWebsite:

Parameter

Description

Host

Enterthehostnameofthesite,suchas.Donotusethewildcard*torepresentmultiplesites.

Port

EntertheportnumberfromwhichtheWebsiteislisteningforincomingHTTPorHTTPSrequests.Theportnumbershouldbeoftheportusedinbrowserrequests.

URLPrefix

EnterthepathprefixoftheURLstodistinguishthissitefromanothersitethatsharesthesamehostname.DonotincludethefilenameorembeddedURLparametersintheprefixandmakesurethattheprefixstartswith“/”.Whendefiningasitedefinition,youcanspecifyaURLpathprefixforthosesitesthatsharethesamehostname.

OracleWebCacheresolvesanincomingrequestfirsttoasitedefinition,andthentothefirstmatchingsite-to-originservermapping.

ClickApplyandthenrestartOracleWebCachefromWebCache>

Restart.

ClickClosetoclosetheConfirmationwindow.

ConfigureOracleWebCachewiththeapplicationWebserversorproxyserversto

whichitsendscachemisses.Typically,OracleWebCacheusesapplicationWebservers

forinternalsitesandproxyserversforexternalsitesoutsideafirewall.

IfOracleHTTPServerwasinstalled,theinstallationprocesscreatesadefaultorigin

serverbasedonthehostnameandlisteningportofOracleHTTPServer.

OracleWebCacheonlyforwardsrequeststoaconfiguredoriginserveriftheorigin

serverismappedtoaWebsite.

FromtheWebCachemenu,selectAdministrationandthenSites.

TheSitespagedisplays.FromtheSite-to-ServerMappingsection,clickCreate.

EnterthefollowinginformationfortheOriginServertoenableittosendOracleWebCacherequests:

HostPattern

Enterthesitepattern,suchas.

PortPattern

EntertheHTTPorHTTPSportnumberfortheWebsitefromwhichOracleWebCacheislisteningforincomingrequests.

SelecttheWebServer（）towhichtheadditionalWebCacheportshouldbemapped.TheWebServerisnowlistedunderSelectedOriginServers.

IntheOriginServerssection,selecttheoriginserver.ClickMove.

ClickApply.

RestartOracleWebCachefromWebCachemenu>

AddingCachingRulesandCompression

IfyouwanttocacheyourdocumentbyusingOracleWebCache,thenyoumustestablishacachingpolicy.Thecachingpolicycanbeembe