MongoDB Database Features

Last updated: February 8, 2026Reviewed date: February 8, 2026Reading time: 5 min read

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Article Summary

MongoDB is a non-relational document database that provides support for JSON-like storage. The MongoDB database has a flexible data model that enables you to store unstructured data, and it provides full indexing support, and replication with rich and intuitive APIs. AWS enables you to set up the infrastructure to support MongoDB database deployments in a flexible, scalable, and cost-effective manner on the AWS Cloud. AWS...

Key Takeaways

This article explains MongoDB database features in simple medical language.
This article explains Running MongoDB workloads in Amazon DocumentDB (with MongoDB compatibility) in simple medical language.
This article explains Advantages of running MongoDB workloads in Amazon DocumentDB (with MongoDB compatibility) in simple medical language.
This article explains Customers running MongoDB-compatible workloads in Amazon DocumentDB in simple medical language.

Before reading

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Start here Choose the right pathway for symptoms, reports, medicines, or urgent warning signs. Disease article roadmap Read this topic step by step: meaning, symptoms, warning signs, diagnosis, treatment, prevention, and follow-up. Treatment planner Prepare questions about treatment choices, benefits, risks, side effects, and follow-up. Family & caregiver guide Organize symptoms, reports, medicines, questions, and follow-up safely. Nutrition & diet guide Prepare food, hydration, supplement, and medicine-timing questions safely. Prevention guide Organize risk factors, protective habits, screening, and warning signs. Recovery guide Prepare a safe plan for activity, rehabilitation, warning signs, and follow-up.

Educational health guideWritten for patient understanding and clinical awareness.

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Emergency safety firstUrgent warning signs are highlighted below.

Definition

AWS enables you to set up the infrastructure to support MongoDB database deployments in a flexible, scalable, and cost-effective manner on the AWS Cloud. AWS also enables you to run MongoDB-compatible workloads with Amazon DocumentDB (with MongoDB compatibility), a fast, scalable, and fully managed non-relational database service. With Amazon DocumentDB you don’t have to worry about operational hassle including hardware provisioning, backups, upgrades, durability, patching, high availability, and more. As a cloud-native database, Amazon DocumentDB enables you to build applications that can quickly and easily scale with your workload.

MongoDB database features

MongoDB has become popular with developers in part due to the its intuitive API, flexible data model, and features that include:

Ad-hoc queries

MongoDB supports field, range, and regular-expression queries which can return entire documents, specific fields of documents, or random samples of results.

Indexing

Fields in a MongoDB document can be indexed with primary and secondary indices. MongoDB supports a number of different index types, including single field, compound (multiple fields), multikey (array), geospatial, text, and hashed.

Replication

MongoDB provides high availability with replica sets including two or more copies of the data. Writes are handled by the primary replica, while any replica is capable of serving read requests. If the primary replica fails, a secondary replica is promoted to become the primary replica.

Running MongoDB workloads in Amazon DocumentDB (with MongoDB compatibility)

While the MongoDB document model offers flexibility and an intuitive API loved by developers, self-managing MongoDB databases is difficult, time-consuming, and expensive, especially as applications scale. AWS created Amazon DocumentDB (with MongoDB compatibility) as a fully managed and MongoDB-compatible document database service allowing you to use your existing MongoDB drivers, MongoDB clients, and tools with Amazon DocumentDB.

As a fully managed AWS database service, Amazon DocumentDB allows you to set up, secure, and scale MongoDB-compatible databases in the cloud without worrying about maintaining and patching database software, manually setting up and securing database clusters, running cluster management software, configuring backups, and monitoring production workloads.

Advantages of running MongoDB workloads in Amazon DocumentDB (with MongoDB compatibility)

Amazon DocumentDB supports the MongoDB API, and there are specific benefits and advantages to running your MongoDB workloads on Amazon DocumentDB.

Scalability

Amazon DocumentDB decouples storage and compute, allowing each to scale independently so that you can easily scale read capacity to millions of requests per second. You can increase the read capacity to millions of requests per second by adding up to 15 low latency read replicas in minutes, regardless of the size of your data.

High Availability and Durability

Amazon DocumentDB is designed for 99.99% availability and makes your data durable across three Availability Zones (AZs) within a Region. In Amazon DocumentDB, continuous backup is enabled by default, providing 1 day of point-in-time restore (PITR).

Security and Compliance

Amazon DocumentDB runs in Amazon VPC, which allows you to isolate your cluster in your own virtual network. Amazon DocumentDB supports encryption at rest with AWS KMS, encryption in transit, role-based access control, and compliance certifications including PCI DSS, ISO 9001, 27001, 27017, and 27018, SOC 1, 2 and 3, and HITRUST, in addition to being HIPAA eligible.

AWS Service Integration

Amazon DocumentDB easily integrates with other AWS services to extend functionality, including Amazon CloudWatch for monitoring and alarms, AWS CloudTrail for audit logs, AWS Glue for ETL, and AWS Secrets Manager to name a few.

Amazon DocumentDB continues to improve compatibility with MongoDB workloads by working backwards from the capabilities our customers ask us to build. To learn more about the advantages of DocumentDB for MongoDB workloads, watch the AWS re:Invent presentation, Amazon DocumentDB Deep Dive.

Customers running MongoDB-compatible workloads in Amazon DocumentDB

“At Freshworks we use DocumentDB for our integrations platform to keep different products in sync with each other—for example your leads in Freshworks CRM with your marketing audiences at Mailchimp. We initially chose MongoDB as a document database to natively store, index, and query the JSON from this workload. Our applications run in multiple AWS regions to support global customers, and the legacy solution required 3 engineers to support new region deployments, hardware failure recovery, database sharding, and downtime-incurring maintenances to remove stale indexes. We migrated to Amazon DocumentDB because it manages launching, scaling, and recovering database clusters. We love that it’s compatible with MongoDB, so our applications didn’t require code changes, and we could easily spin up a DocumentDB cluster to test the MongoDB capabilities that we relied on. Now our engineers have more time to build new features for customers instead of managing databases.”

“At Hudl, we utilize a significant amount of AWS services, as we’re always looking for opportunities to get out of the business of managing our own infrastructure. Our developers love the MongoDB API and document model. We’re very excited about the launch of Amazon DocumentDB, as it fits perfectly into our short-term and long-term architectural plans. Amazon DocumentDB has the capabilities we’re looking for, and it’s great to see AWS Database Migration Service (DMS) support from day one.”

“Woot! replaced our aging, self-managed, and operational nightmare product catalog database running on MongoDB 2.2 with Amazon DocumentDB. With only minimal changes, we were able to able to upgrade our driver and complete our full production migration in three weeks. In doing so, we cut our infrastructure costs for the database by 82%, including licensing costs. With Amazon DocumentDB, we’ve seen improved latency and scalability, and now have a safer backup solution and can perform point-in-time recovery to any second during a 35-day window. With AWS service integrations and improved scaling, we’re now able to stand up new features faster which enables us to innovate faster on behalf of our customers. We are thrilled to be out of the business of managing our own MongoDB database.”

Safety note: This is not a prescription or diagnosis. For severe symptoms, pregnancy danger signs, children with serious illness, chest pain, breathing difficulty, stroke-like weakness, or major injury, seek urgent care.

Which doctor may help?

Start with a registered doctor or the nearest qualified health center.

What to tell the doctor

Write when the problem started and how it changed.
Bring old prescriptions, investigation reports, and current medicines.
Write allergies, pregnancy status, diabetes, kidney/liver disease, and major past illnesses.
Bring one family member if the patient is weak, elderly, confused, or a child.

Questions to ask

What is the most likely cause of my symptoms?
Which danger signs mean I should go to hospital quickly?
Which tests are necessary now, and which can wait?
How should I take medicines safely and what side effects should I watch for?
When should I come for follow-up?

Tests to discuss

Vital signs: temperature, pulse, blood pressure, oxygen saturation
Basic physical examination by a clinician
CBC, urine test, blood sugar, or imaging only when clinically needed

Avoid these mistakes

Do not use antibiotics, steroid tablets/injections, or strong painkillers without proper medical advice.
Do not hide pregnancy, kidney disease, ulcer, allergy, or blood thinner use.
Do not delay emergency care when danger signs are present.

Medicine safety and first-aid guide

This section is for patient education only. It does not replace a doctor, pharmacist, or emergency care.

Safe first steps

Rest, drink safe water, and observe symptoms carefully.
Keep a written note of symptoms, duration, temperature, medicines already taken, and allergy history.
Seek medical care quickly if symptoms are severe, worsening, or unusual for the patient.

OTC medicine safety

For mild pain or fever, ask a registered pharmacist or doctor before using common over-the-counter pain/fever medicines.
Do not combine multiple pain medicines without advice, especially if you have kidney disease, liver disease, stomach ulcer, asthma, pregnancy, or take blood thinners.
Do not give adult medicines to children unless a qualified clinician advises it.

Avoid these mistakes

Do not start antibiotics without a proper medical decision.
Do not use steroid tablets or injections casually for quick relief.
Do not delay emergency care because of home remedies.

Get urgent help if

Severe symptoms, confusion, fainting, breathing difficulty, chest pain, severe dehydration, or sudden weakness need urgent medical care.

Medicine names, dose, and timing must be decided by a qualified clinician or pharmacist after checking age, pregnancy, allergy, other diseases, and current medicines.

For rural patients and family caregivers

Patient health record and symptom diary

Write your symptoms, medicines already taken, test results, and questions before visiting a doctor. This note stays on your device unless you print or copy it.

Doctor to discuss: Doctor / qualified healthcare provider

Tests to discuss with doctor

Basic vital signs: temperature, pulse, blood pressure, oxygen level if needed
Relevant blood, urine, imaging, or specialist tests only after clinical assessment

Questions to ask

What is the most likely cause of my symptoms?
Which warning signs mean I should go to emergency care?
Which tests are really needed now?
Which medicines are safe for my age, pregnancy status, allergy, kidney/liver/stomach condition, and current medicines?

Emergency warning signs such as chest pain, severe breathing difficulty, sudden weakness, confusion, severe dehydration, major injury, or loss of bladder/bowel control need urgent medical care. Do not wait for online information.

Go to emergency care if you notice:

Severe or rapidly worsening symptoms
Breathing difficulty, chest pain, fainting, confusion, severe weakness, major injury, or severe dehydration

Doctor / service to discuss: Qualified healthcare provider; specialist depends on symptoms and examination.

Step 1
Check danger signs first

If danger signs are present, seek emergency care and do not wait for online information.
Step 2
Record the symptom story

Write when symptoms started, severity, medicines already taken, allergies, pregnancy status, and test results.
Step 3
Visit a qualified clinician

A doctor, nurse, or qualified healthcare provider can examine you and decide which tests or treatment are needed.
Step 4
Do only useful tests

Do tests after clinical assessment. Avoid unnecessary tests, random antibiotics, or repeated medicines without diagnosis.
Step 5
Follow up and return early if worse

If symptoms worsen, new warning signs appear, or treatment is not helping, return for review quickly.

Rural patient practical tips

Take a written symptom diary and all previous prescriptions/test reports.
Do not hide medicines already taken, even herbal or over-the-counter medicines.
Ask which warning signs mean urgent referral to hospital.

This roadmap is for education. A real diagnosis and treatment plan requires history, examination, and clinical judgment.

Internal learning pathway

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