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AEM with MongoDB | AEM Community Discussion

Community Manager
Community Manager


AEM with MongoDB by Adobe Docs


This article aims to improve knowledge on tasks and considerations needed to successfully deploy Adobe Experience Manager with MongoDB.
For more deployment related information, consult the Deploying and Maintaining section of the documentation.

When to use MongoDB with AEM
MongoDB will typically be used for supporting AEM author deployments where one of the following criteria is met:
1. More than 1000 unique users per day;
2. More than 100 concurrent users;
3. High volumes of page edits;
4. Large rollouts or activations.

Hardware Considerations
1. Storage
In order to achieve the read and write throughput for best performance without the need for premature horizontal scaling, MongoDB generally requires SSD storage or storage with performance equivalent to SSD.

2. RAM
MongoDB versions 2.6 and 3.0 that use the MMAP storage engine require that the working set of the database and its indexes fits into RAM.

Data Store
Due to the MongoDB working set limitations it is strongly recommended that the data store is maintained independent from the MongoDB. In most environments a FileDataStore using a NAS available to all AEM instances should be used. For situations where the Amazon Web Services are used, there is also an S3 DataStore

Monitoring is vital for a successful implementation of the project. Whilst with sufficient knowledge it is possible to run AEM on MongoDB without monitoring, that knowledge is normally found in engineers specialized for each section of the deployment.
This typically involves an R&D engineer working on the Apache Oak Core and a MongoDB specialist.

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AEM with MongoDB


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