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IBM 6.1.X manual MaxRequestsPerChild, Web Server Tuning for Clusters

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Table 26: Web Server Tuning for Clusters

Web Server Tuning

Table 26: Web Server Tuning for Clusters

Parameter			Setting Used

ThreadLimit			25

ServerLimit			180

StartServers			2

MaxClients			4500

MinSpareThreads			25

MaxSpareThreads			4500

ThreadsPerChild			25

MaxRequestsPerChild			0

Sample configuration:
<IfModule worker.c>
ThreadLimit	25
ServerLimit	180
StartServers	2
MaxClients	4500
MinSpareThreads		25
MaxSpareThreads		4500
ThreadsPerChild		25

MaxRequestsPerChild 0 </IfModule>

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W E BS P HE R E P O R T AL V 6 . 1 T U N I N G G U I D E

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IBM 6.1.X manual MaxRequestsPerChild, Web Server Tuning for Clusters

Contents

Performance Tuning Guide IBM WebSphere Portal software family Your world. Your wayIBM WebSphere Portal IBM WPLC Performance Team March Document versionPERFORMANCE TUNING OVERVIEW ContentsBASE PORTAL TUNING WEB 2.0 THEME TUNINGWEB CONTENT MANAGEMENT TUNING MANY PAGES TUNINGCOMPOSITE APPLICATIONS TUNING CLUSTER TUNINGCache Usage Patterns General InformationCache Instances Example ScenariosTables FiguresABOUT THIS DOCUMENT PERFORMANCE TUNING OVERVIEW Environment Considerations BASE PORTAL TUNING How to get to Admin Console Application Server Tuning3. http//yourhost10001/admin http//www-01.ibm.com/software/webservers/appserv/was/libraryOn Solaris and zLinux, we use 3.5GB heap size in 64-bit environment reboot -q vmo -p -o vpinshm=1 XXMaxPermSize serverXX+UseConcMarkSweepGC XXSurvivorRatioW E B C O N T A I N E R T H R E A D P O O L S I Z E S E S S I O N T I M E O U TNote to WAS initPoolSize How to SetprefPoolSize maxPoolSizeParameter WebSphere Portal ServicesParameter R E G I S T R Y S E R V I C ERegistryService.properties C A C H E M A N A G E R S E R V I C E Cache NameDatabase Database TuningDatabase name Datasource nameThe databases and related domains supported by Portal V6.1 are Perform a re-org check to improve performance For those tables which require reorganization, we use the command ∙ Database block size 8k Mount -o cio /u02 smitty aio Change/Show Characteristics of Async I/O MinServers =chdev -l sys0 -a maxuproc=’4096’ sessionsO T H E R D A T A B A S E C O N S I D E R A T I O N S executedb2 alter bufferpool IBMDEFAULTBP size Directory Server Tuningdb2 “update db config for idsldap using dbheap 4800” KeepAliveTimeout Web Server TuningAccess logging ThreadsPerChildMinSpareThreads Note For z/OS, no Web Server was configuredMaxSpareThreads MaxClientsOperating System Tuning Tcpip\Parameters. Create a new REGDWORD named below HKEYLOCALMACHINE\SYSTEM\CurrentControlSet\Services\L I N U N E T W O R K T U N I N G W I N D O W S 2 0 0 N E T W O R K T U N I N GS O L A R I S How-to-Set ndd -set /dev/tcp PARAMETER VALUEN E T W O R K T U N I N G K E R N E L T U N I N GThe commands we use to setup 1.”pooladm -e” to enable pool facility Required Fixes JVM Initial and Maximum Heap Size WEB 2.0 THEME TUNINGNavigator Service Properties Proxy /searchfeed* http//server-name/searchfeed Caching Proxy TuningInternet Explorer Support of Vary Header Web Server Tuning # uncommented these to enable statics to be cached# set cache-control public for various static content ExpiresActive On Portlet Cachinga. expiration-cache28800/expiration-cache b. cache-scopepublic/cache-scopeDB2 Database Tuning MANY PAGES TUNINGRequired Fixes Cache Manager ServiceTable 19 Cache Manager Service Settings for Many Pages Application Server Tuning WEB CONTENT MANAGEMENT TUNINGTable 20 Cache Manager Service Settings for WCM WebSphere Portal Service PropertiesCacheManagerService.properties File Cache NameCache Name WCM Object CacheJCR Text Search WCM Configuration ServiceDB2 Tuning Authoring Environment Z / O S Bufferpool settingsT A B L E S P A C E S B U F F E R P O O L STBSBPOOL TBSBPLOBIDXBPOOL D B 2 F O R Z / O S V 8 F I X E SCache Manager Service Properties COMPOSITE APPLICATIONS TUNINGComposite Applications Best Practices ∙ Another area to consider regarding teamspace complexity is the number of application roles. For many teamspaces, two roles manager and user are adequate. Don’t create additional roles unless they are really needed Value true CLUSTER TUNINGApplication Server Tuning Value trueHow-To Set MaxRequestsPerChild Web Server TuningTable 26 Web Server Tuning for Clusters Setting Session Persistence To Database TuningAdditional Details Table 27 WebSphere Session Persistence TuningVertical Cluster Tuning Required Fixes IBM Tivoli Directory Server TuningImproving Portal Startup Performance OTHER PERFORMANCE TUNING OPTIONSManaging the Retrieval of User Attributes The two trace strings are content.topology.dynamic=false Use of Dynamic Content FeaturesReal-World Network Considerations # Dont compress images BrowserMatch Mozilla/4 gzip-only-text/htmlLoadModule headersmodule modules/modheaders.so Location ~ \.jsgifjpgjpegpng$General Information WEBSPHERE PORTAL CACHESenabled The enabled property determines whether a cache is used or not. If a cache is not enabled, the property has a value of false, then no values are held by the cache and every cache lookup will return a null value. This property should only be modified for testing purposes, never in a production environment. The supported values are true and false and the global default value is true Supported values are true and false. The default values shipped in WebSphere Portal V6.1 should apply to most configurations. If you do not have a cluster there may be a small performance benefit to setting this property to false since a different cache implementation is used. We did not modify the defaults in our single node measurement environments Cache Usage Patterns Cache Instances Figure 1 Portal Access Control Cache Hierarchy com.ibm.wps.ac.PermissionCollectionCachecom.ibm.wps.ac.ProtectedResourceCache com.ibm.wps.ac.AccessControlUserContextCachecom.ibm.wps.ac.OwnedResourcesCache com.ibm.wps.ac.RolesCachecom.ibm.wps.ac.ExternalOIDCache com.ibm.wps.ac.ApplicationRoleDescriptorCache com.ibm.wps.ac.ChildResourcesCachecom.ibm.wps.ac.ApplicationRoleOIDCache com.ibm.wps.ac.ContainedRolesCache com.ibm.wps.ac.ApplicationRolesForPrincipalCachecom.ibm.wps.ac.ApplicationRoleChildrenCache com.ibm.wps.puma.DNOIDCache / com.ibm.wps.puma.OIDDNCachecom.ibm.wps.datastore.PortalIdCache.vpPerLpid.cache com.ibm.wps.datastore.services.Identification.OidAndUniqueName.cachecom.ibm.wps.datastore.PortalIdCache.explicitLpidPerVP com.ibm.wps.datastore.pageinstance.OIDCacheM O D E L com.ibm.wps.datastore.pageinstance.DerivationCachecom.ibm.wps.datastore.pageinstance.DynamicNodeCache com.ibm.wps.model.factory.SimpleCacheKey com.ibm.wps.model.content.impl.ResourceCachecom.ibm.wps.model.factory.ContentModelCache.live com.ibm.wsp.mode.content.impl.TopologyCachecom.ibm.wps.model.factory.NavigationSelectionModelCache.live com.ibm.wps.model.factory.ContentModelCache.isolatedcom.ibm.wps.model.factory.NavigationSelectionModelCache.isolated com.ibm.wps.model.factory.URLMappingCache.livecom.ibm.wps.model.factory.URLMappingCache.isolated com.ibm.wps.model.content.impl.DynamicLoadCachecom.ibm.wps.model.factory.MultiModelCache.live com.ibm.wps.model.factory.MultiModelCache.isolatedcom.ibm.wps.model.impl.RuntimeClientMap.userAgent2client com.ibm.wps.services.vpmapping.VirtualPortalIDToRealmCachewps.mappingurl.ContextsCache wps.mappingurl.LookupCachecom.ibm.wps.services.vpmapping.URLToVirtualPortalIDCache com.ibm.wps.services.vpmapping.VirtualPortalIDToURLCachewsrp.cache.portletdescription W S R Pwsrp.cache.portlet.instance wsrp.cache.servicedescriptionwsrp.cache.producer.user wsrp.cache.portlet.windowwsrp.producer.portletpool.ccps wsrp.producer.portletpool.popsprocessintegration.PendingTasksCache wp.te.transformationAssociationCachecom.ibm.wps.policy.services.UserPolicyNodeCacheManager com.ibm.wps.policy.services.PolicyCacheManagercom.lotus.cs.services.directory.ldap.BasicLDAPDirectoryService.server P O L I C Ycom.lotus.cs.services.directory.wmm.WMMDirectoryService com.lotus.cs.services.directory.ldap.BasicLDAPDirectoryService.usercom.lotus.cs.services.UserEnvironment com.lotus.cs.services.domino.DominoServicewp.xml.configitems com.ibm.wps.services.cache.cachedstate.CachedStateServiceCache.cachecom.ibm.wps.pe.portletentity PortletMenuCachecom.ibm.workplace.searchmenu.helper.SearchMenuCacheHelper RegistryServiceDefault size 32, default lifetime infinite, usage pattern regular Default size 2500, default lifetime 3730, usage pattern regularExample Scenarios Now we shall consider some recommendations for specific scenarios We increased the lifetimes of all caches to at least one hour com.ibm.wps.datastore.pageinstance.OIDCache services/cache/iwk/strategy - WCM Item caching WEB CONTENT MANAGEMENT CACHESservices/cache/iwk/objectsummary - WCM Summary WCM Cache Instancesservices/cache/iwk/session - Session services/cache/iwk/moduleservices/cache/iwk/processing - Advanced and Resour ces services/cache/iwk/nav Navigator services/cache/iwk/menu - Menuservices/cache/iwk/abspath - Absolute path services/cache/iwk/missed - Missed ItemsServices/cache/iwk/draftSummary - Draft Summary services/cache/iwk/libparent - Library ParentUser cache user.cache.enabled=trueWebSphere Portal Information Center Lee Backstrom, Document Coordinator Mark Alkins, ManagerAndrew Citron Nathan Cook Sabine Forkel Uwe Haller Shibi John Klaus Nossek Kyung Lee Denny Pichardo, Technical LeadW E BS P HE R E P O R T AL V 6 . 1 T U N I N G G U I D E The following are trademarks of other companies