AEM Scalability

[nsvsrk]

Hi all,

Kindly suggest how Scalability could be increased for AEM.

I am aware of MongoMK architecture, that enables horizontal scalability.

I also looked in to AEM Scalability Issues  forum post that directs to Common product issues .

Here also I did not get much on this subject.

I highly appreciate all your support.

Thanks,

Rama.

[Gaurav-Behl]

What kind of scalability (in/out) are you looking for? Could you elaborate on it?

Does this help - Recommended Deployments ?

[nsvsrk]

Hi Gaurav,

Thanks for responding.

I guess that Scalability-In is for cutting down on usage volume and Scalability-Out is for increasing usage volume.

I am concerned about increasing usage volume.

I  have been through that URL already and concluded that Mongo MK supports horizontal scaling.

This is indeed a great input.

Are there any other inputs you could offer on Scaling please?

Thanks,

Rama.

[smacdonald2008]

Please check this whitepaper

https://helpx.adobe.com/content/dam/help/en/experience-manager/6-3/sites/deploying/using/performance...

[Gaurav-Behl]

What is your use case/context here? You may need to understand the concept before concluding how scaling works. E.g. TarMK Farm is also an example of scaling (read-only since its not clustered). Whatever setup you currently have, if you are able to more nodes without breaking your app etc., that would be termed as a scalable system.

Below are the definitions that might help for the concept:

scale horizontally (or scale out/in) means to add more nodes to (or remove nodes from) a system, such as adding a new computer to a distributed software application.

scale vertically (or scale up/down) means to add resources to (or remove resources from) a single node in a system, typically involving the addition of CPUs or memory to a single computer

source: Scalability - Wikipedia

Autoscaling - Wikipedia

[nsvsrk]

Hi Scott, I already have gone through this whitepaper.

Hi Gaurav, I understood these concepts.

With Vertical scaling, we increase HW resources of a single computer system and with Horizontal, we add extra computer systems.

Apart from these concepts, is there a measure taken from HW point of view or SW point of view, for enhancing AEM Scaling?

Appreciate your support.

Thanks,

Rama.

[Gaurav-Behl]

These are general concepts/guiding principles to achieve what you want to do. The implementation of these principles might have a range with specifics tasks based on a lot of factors e.g. if you are on Cloud vs on-premise etc.

If you've any specific questions, please share your requirements and details about your existing setup. Alternatively, you could open a ticket with DayCare and ask for specific recommendations regarding your use case.

[nsvsrk]

Hi Gaurav,

It is an on-premise installation with MongoMK.

From HW point of view or SW point of view, what all else shall I do for enhancing AEM Scaling?

Is Scaling got anything to do with SW? I can not imagine.

Thanks,

Rama.

[smacdonald2008]

The GEMS team recommends that you watch this too:

Experiments in AEM Author Scalability

[Gaurav-Behl]

When you say SW, do you mean AEM (as software) or your custom application code (as software)?

What if you add a new node for horizontal scaling but your custom application code can't even support it because of various reasons? Would that still count as a scalable system? Hope you can connect the dots and see the big picture.

[nsvsrk]

Hi Gaurav,

When I say SW,I mean custom application code on AEM.

If I add a new node for horizontal scaling but my custom application code can't even support it because of various reasons. I would not count it as a scalable system.

Do I need to take care of Scaling in custom application code on AEM also?

Thanks,

Rama.

[Gaurav-Behl · Accepted solution]

The application design/code should not be a constraint to support scalability.

I'll take a best practices example here - The app should not have hardcoded absolute paths that would cease to work on another server. Similar approach goes for environment variables, shared content storage, session based use cases etc.