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Exception when starting CachePreloaderService

Dear Portal Specialists

We upgraded our portal to NW 7.0 EHP1 SPS 3 and want to enable Navigation Cache and the CachePreloaderService.

So first i enabled the Navigation Cache and then i configured the CachePreloaderService.

Run on startup: true

Users to preload: [Administrator:2:false:en_US,en] (i also tried custom values)

When i go to the node to restart the service, i receive the following error:

Server 1991650:Error in the listener class during the process of handleTopic.

I can find other threads about the same error message, but those are about custom services or services that had to be deployed.

Does anybody know this problem and knows how to solve it?

Thank you very much and best regards


Former Member

Hi Martin,

the cache preloader service was designed not to work when the portal is up, because of the reason that the navigation engine cannot know when all the connectors is up, and because of that the cache

preloader might not work.

Did you tried to restart the portal completely?



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