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Level 2
October 25, 2019

High CPU 90% on webserver with dispatcher setup

We are facing high CPU : More than 90% for higher concurrency load test on all 3 webserver instances . All these webservers pointing to same Publisher instance.

Can Dispatcher cause high CPU ? Any tuning configurations?

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3 replies

Adobe Employee
October 25, 2019

That's an odd topology. Typically you would map a single Dispatcher to a single AEM Publish 1:1.

Unusual to point 3 Dispatcher's at a single Publish...

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Adobe Employee
October 25, 2019

Adding to Marc's point, you might need to optimize caching. Check [1] for more details.

[1] Optimizing the Dispatcher cache

Optimizing AEM Site Caches

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joerghoh
Adobe Employee
Adobe Employee
October 26, 2019

High CPU usage can have many root causes. First of all, does the webserver/dispatcher cause this high CPU usage or is another process causing it?

What operating system is this? What hardware? What disks are used to store the dispatcher cache?

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