IBM 6.1.X manual WebSphere Portal Services, Parameter

WebSphere Portal Services

WebSphere Portal has a number of configurable “services”; each service has several parameters available to it. This section describes which services we tuned, the tuning values used, and the rationale for those changes.

How to Set:

1.Edit <wp_profile_root>/PortalServer/config/properties/xxxService.properties

2.uncomment the line, then change the size.

3.run <wp_profile_root>/ConfigEngine/ConfigEngine.sh update-properties

The changes should appear on WAS Console -> Resource Environment Providers -> WP_xxxService -> Custom properties

N A V I G A T O R S E R V I C E

The navigator service manages the content model for unauthenticated users, which controls the pages those users are able to see. This content model is periodically reloaded by WebSphere Portal; new pages which are visible to unauthenticated users will not be available until the next reload occurs. Our environment assumes a low rate of change for pages, so we set this reload to only occur once per hour. In a production environment where new pages for unauthenticated users are rarely created, setting this reload time to an hour or more will give better performance. In a test or staging environment where updates to unauthenticated pages need to be seen more often, a lower reload time is more appropriate.

This service also controls the HTTP cache-control headers which will be sent on unauthenticated pages. While our environment did not exploit HTTP page caching, increasing these cache lifetimes in a production environment can reduce load on the portal. For more discussion of the use of HTTP cache-control headers with WebSphere Portal, refer to the “Caching” section of the “Tuning” topi c in the WebSphere Portal V6.1 InfoCenter.

Table 4: Navigation Service Settings

NavigatorService.properties

Parameter	Default	Value	Definition
	Value	Used
public.expires (seconds)	60	3600	Determines cache expiration time for caches
			outside of WebSphere Portal and for
			unauthenticated portal pages only. If the setting
			remote.cache.expiration is also set to a value
			greater than or equal to 0, the smaller one of the
			two values is used.
public.reload (seconds)	60	3600	Determines cache expiration time for the portal
			internal cache for unauthenticated pages
remote.cache.expiration	60	28800	Determines cache expiration for caches outside
(seconds)			of portal server for authenticated as well as for
			unauthenticated pages
		1 2
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