5 Use Instances for DynamoDB


Internet-based purposes face scaling because of the development of customers together with the growing complexity of information visitors.

Together with the trendy complexity of enterprise comes the necessity to course of information quicker and extra robustly. Due to this, customary transactional databases aren’t all the time the most effective match.

As a substitute, databases corresponding to DynamoDB have been designed to handle the brand new inflow of information. DynamoDB is an Amazon Internet Providers database system that helps information buildings and key-valued cloud providers. It permits customers the advantage of auto-scaling, in-memory caching, backup and restore choices for all their internet-scale purposes utilizing DynamoDB.

However why would you need to use DynamoDB and what are some examples of use instances?

On this put up, we’ll cowl simply that. We are going to format the advantages of utilizing DynamoDB, and description some use instances in addition to among the challenges.

Advantages of DynamoDB for Operations

First, let’s talk about why DynamoDB will be helpful.


Efficiency and scalability

Those that have labored within the IT business know that scaling databases can each be troublesome and dangerous. DynamoDB provides you the flexibility to auto-scale by monitoring how shut your utilization is to the higher bounds. This will enable your system to regulate in line with the quantity of information visitors, serving to you to keep away from points with efficiency whereas decreasing prices.

Entry to manage guidelines

As information will get extra particular and private, it turns into extra vital to have efficient entry management. You need to simply apply entry management to the correct folks with out creating bottlenecks in different folks’s workflow. The fine-grained entry management of DynamoDB permits the desk proprietor to achieve a better stage of management over the information within the desk.

Persistence of occasion stream information

DynamoDB streams enable builders to obtain and replace item-level information earlier than and after modifications in that information. It is because DynamoDB streams present a time-ordered sequence of modifications made to the information throughout the final 24 hours. With streams, you may simply use the API to make modifications to a full-text search information retailer corresponding to Elasticsearch, push incremental backups to Amazon S3, or preserve an up-to-date read-cache.

Time To Reside

TTL or Time-to-Reside is a course of that lets you set timestamps for deleting expired information out of your tables. As quickly because the timestamp expires, the information that’s marked to run out is then deleted from the desk. By way of this performance, builders can preserve monitor of expired information and delete it robotically. This course of additionally helps in decreasing storage and slicing the prices of guide information deletion work.

Storage of inconsistent schema gadgets

In case your information objects are required to be saved in inconsistent schemas, DynamoDB can handle that. Since DynamoDB is a NoSQL information mannequin, it handles much less structured information extra effectively than a relational information mannequin, which is why it’s simpler to handle question volumes and presents excessive efficiency queries for merchandise storage in inconsistent schemas.

Automated information administration

DynamoDB consistently creates a backup of your information for security functions which permits house owners to have information saved on the cloud.

Seesaw Case Study

5 Use Instances for DynamoDB

One of many causes folks don’t use DynamoDB is as a result of they’re unsure whether or not it’s a good match for his or her undertaking. We needed to share some examples the place corporations are utilizing DynamoDB to assist handle the bigger inflow and of information at excessive speeds.


Duolingo, a web based studying web site, makes use of DynamoDB to retailer roughly 31 billion information objects on their internet server.

This startup has round 18 million month-to-month customers who carry out round six billion workout routines utilizing the Duolingo app.

As a result of their software has 24,000 learn models per second and three,300 write models per second DynamoDB ended up being the correct match for them. The crew had little or no information about DevOps and managing giant scale programs once they began. Due to Duolingo’s international utilization and wish for customized information, DynamoDB is the one database that has been capable of meet their wants, each by way of information storage and DevOps.

Additionally, the truth that DynamoDB scales robotically meant that this small startup didn’t want to make use of their builders to manually alter the scale. DynamoDB has simplified in addition to scaled to satisfy their wants.

Main League Baseball (MLB)

There’s so much we take without any consideration once we watch a recreation of baseball.

For instance, do you know there’s a Doppler radar system that sits behind residence plate, sampling the ball place 2,000 occasions a second? Or that there are two stereoscopic imaging units, often positioned above the third-base line, that pattern the positions of gamers on the sphere 30 occasions a second?

All these information transactions require a system that’s quick on each reads and writes. The MLB makes use of a mix of AWS parts to assist course of all this information. DynamoDB performs a key position in guaranteeing queries are quick and dependable.

Hess Company

Hess Company, a widely known power firm, has been engaged on the exploration and manufacturing of pure gasoline and crude oil.

This enterprise requires strategizing totally different monetary planning which impacts administration on the entire. To streamline their enterprise processes, Hess turned in the direction of DynamoDB by shifting its E&P (Vitality Exploration and Manufacturing) undertaking onto AWS.

Now DynamoDB has helped the corporate in separating potential consumers’ information from enterprise programs. Furthermore, the operational infrastructure of DynamoDB helps them to deal with information successfully and get optimized and well-managed outcomes.

GE Healthcare

GE is well-known for medical imaging tools that helps in diagnostics via radiopharmaceuticals and imaging brokers.

The corporate has used DynamoDB to extend buyer worth, enabled by cloud entry, storage, and computation.

The GE Well being Cloud offers a single portal for healthcare professionals all around the US to course of and share pictures of affected person instances. This can be a nice benefit for diagnostics. Clinicians can enhance therapies via entry to this healthcare information.


NTT Docomo, a well-liked cell phone working firm, has constructed a repute for its voice recognition providers, which want the most effective efficiency and capability.

To cater to those necessities, Docomo turned in the direction of DynamoDB which has helped the corporate scale in the direction of higher efficiency.

With their rising buyer base, Docomo has introduced a voice recognition structure into use, which helps them carry out higher even throughout visitors spikes.

Together with all these instances, promoting expertise corporations additionally rely closely on Amazon DynamoDB to retailer their advertising information of various sorts.

This information consists of consumer occasions, consumer profiles, visited hyperlinks and clicks. Generally, this information additionally consists of advert focusing on, attribution, and real-time bidding.

Thus, advert tech corporations require low latency, excessive request charge and excessive efficiency with out having to speculate closely in database operations.

Because of this corporations flip in the direction of DynamoDB. It not solely presents excessive efficiency but additionally, with its information replication possibility, permits corporations to deploy their real-time purposes in a couple of geographical location.

Nevertheless, regardless of all the advantages DynamoDB isn’t all the time the simplest database to make use of in terms of analytics.

Challenges of Analyzing DynamoDB Operational Information

DynamoDB’s focus is on offering quick information transactions for purposes. What makes DynamoDB quick on a transaction stage can really hinder it from the angle of analyzing information. Listed below are a couple of of the key roadblocks you’ll run into when you begin analyzing information in DynamoDB.

On-line Analytical Processing (OLAP)

On-line analytical processing and information warehousing programs often require enormous quantities of aggregating, in addition to the becoming a member of of dimensional tables, that are offered in a normalized or relational view of information.

This isn’t potential within the case of DynamoDB because it’s a non-relational database that works higher with NoSQL formatted information tables. Moreover, the final information buildings for analytics aren’t all the time nicely supported in key-value databases. In flip, it may be more durable to get to information and run giant computations.

Querying and SQL

Together with OLAP processes being troublesome to run on DynamoDB, because of the focus of DynamoDB being operational, DynamoDB doesn’t interface with SQL.

This can be a key subject as a result of most analytical expertise is accustomed to SQL and never DynamoDB queries. In flip, this makes it troublesome to work together with the information and ask essential analytical questions.

The results of this may be the requirement to rent builders solely to extract the information, which is pricey, or being unable to investigate the information in any respect.

Indexing is pricey

One other qualm in terms of analytics is processing giant information units rapidly. Usually this may be alleviated with indexes.

On this case, the issue is that DynamoDB’s international secondary indexes require further learn and write capability provisioned, resulting in further value. Because of this both your queries will run slower or you’ll incur higher prices.

These challenges can typically be a hindrance to some corporations deciding whether or not or not they need to tackle the danger of creating on DynamoDB.

dynamodb flow chart

That is the place analytics engines like Rockset are available in. They not solely present a SQL layer that makes it simple to entry the operational information but additionally present the flexibility to ingest the information into their information layer — which helps joins with information from different AWS information sources, like Redshift and S3.

We’ve discovered instruments like this to be useful as a result of they will scale back the necessity for builders and information engineers who can interface with DynamoDB. As a substitute, you are able to do your analytical work and reply the vital questions with out being held again.

For individuals who have ever labored on an analytical crew, it may be very troublesome to clarify to higher administration why information exists, however you’re nonetheless unable to offer insights. Utilizing layers like Rockset can take the complexity away.

If you would like to see Rockset and DynamoDB in motion, it is best to try our transient product tour.


As a non-relational database, DynamoDB is a dependable system that helps small, medium and enormous enterprises scale their purposes.

It comes with choices to backup, restore and safe information, and is nice for each cell and internet apps. Except particular providers like monetary transactions and healthcare, you may redesign nearly any software with DynamoDB.

This non-relational database is extraordinarily handy to construct event-driven structure and user-friendly purposes. Any shortcomings with analytic workloads are simply rectified with the usage of an analytic-focused SQL layer, making DynamoDB an amazing asset for customers.

Ben has spent his profession targeted on all types of information. He has targeted on creating algorithms to detect fraud, scale back affected person readmission and redesign insurance coverage supplier coverage to assist scale back the general value of healthcare. He has additionally helped develop analytics for advertising and IT operations as a way to optimize restricted assets corresponding to workers and price range. Ben privately consults on information science and engineering issues. He has expertise each working hands-on with technical issues in addition to serving to management groups develop methods to maximise their information.

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