Glusterfs on web server

P. P. asked:

I want to build a HA Web service and I was planning to use Glusterfs on three nodes (with replica 3).

My plan was to install web server directly on Gluster nodes.

Is this a viable solution or is there a strong reason to use dedicated Gluster nodes?

Thank you.


My answer:

Yes, you can run GlusterFS nodes directly on your web server instances, but keep in mind that it can use a lot of CPU, taking away CPU resources from your web application. You should test your app to see if it will have sufficient CPU and other resources to run converged with GlusterFS; if not, you should upgrade the hardware or use dedicated GlusterFS nodes.

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