Choosing the right database is a critical choice when building any software application. All databases have different strengths and weaknesses when it comes to performance, so deciding which database has the most benefits and the most minor downsides for your specific use case and data model is an important decision. Below you will find an overview of the key concepts, architecture, features, use cases, and pricing models of DataBend and MongoDB so you can quickly see how they compare against each other.

The primary purpose of this article is to compare how DataBend and MongoDB perform for workloads involving time series data, not for all possible use cases. Time series data typically presents a unique challenge in terms of database performance. This is due to the high volume of data being written and the query patterns to access that data. This article doesn’t intend to make the case for which database is better; it simply provides an overview of each database so you can make an informed decision.

DataBend vs MongoDB Breakdown


 
Database Model

Data warehouse

Document database

Architecture

DataBend can be run on your own infrastructure or using a managed service. It is designed as a cloud native system and is built to take advantage of many of the services available in cloud providers like AWS, Google Cloud, and Azure.

MongoDB uses a flexible, JSON-like document model for storing data, which allows for dynamic schema changes without downtime. It supports ad hoc queries, indexing, and real-time aggregation. MongoDB can be deployed as a standalone server, in a replica set configuration for high availability, or as a sharded cluster for horizontal scaling. It is also available as a managed cloud service called MongoDB Atlas, which provides additional features like automated backups, monitoring, and global distribution.

License

Apache 2.0

SSPL for community edition, commercial licenses for other versions

Use Cases

Data analytics, Data warehousing, Real-time analytics, Big data processing

Content management systems, mobile applications, real-time analytics, IoT data management, e-commerce platforms

Scalability

Horizontally scalable with support for distributed computing

Horizontally scalable with support for data sharding, replication, and automatic load balancing

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DataBend Overview

DataBend is an open-source, cloud-native data processing and analytics platform designed to provide high-performance, cost-effective, and scalable solutions for big data workloads. The project is driven by a community of developers, researchers, and industry professionals aiming to create a unified data processing platform that combines batch and streaming processing capabilities with advanced analytical features. DataBend’s flexible architecture allows users to build a wide range of applications, from real-time analytics to large-scale data warehousing.

MongoDB Overview

MongoDB is a popular, open-source NoSQL database launched in 2009. Designed to handle large volumes of unstructured and semi-structured data, MongoDB offers a flexible, schema-less data model, horizontal scalability, and high performance. Its ease of use, JSON-based document storage, and support for a wide range of programming languages have contributed to its widespread adoption across various industries and applications.


DataBend for Time Series Data

DataBend’s architecture and processing capabilities make it a suitable choice for working with time series data. Its support for both batch and streaming data processing allows users to ingest, store, and analyze time series data at scale. Additionally, DataBend’s integration with Apache Arrow and its powerful query execution framework enable efficient querying and analytics on time series data, making it a versatile choice for applications that require real-time insights and analytics.

MongoDB for Time Series Data

Although MongoDB is a general-purpose NoSQL database, it can be used for storing and processing time series data. The flexible data model of MongoDB allows for easy adaptation to the evolving structure of time series data, such as the addition of new metrics or the modification of existing ones. MongoDB provides built-in support for time-to-live (TTL) indexes, which automatically expire old data after a specified time period, making it suitable for managing large volumes of time series data with a limited storage capacity. MongoDB has also recently added a custom columnar storage engine and time series collection for time series use cases, meant to improve performance over the default MongoDB storage engine in terms of data compression and query performance.


DataBend Key Concepts

  • DataFusion: DataFusion is a core component of DataBend, providing an extensible query execution framework that supports both SQL and DataFrame-based query APIs.
  • Ballista: Ballista is a distributed compute platform within DataBend, built on top of DataFusion, that allows for efficient and scalable execution of large-scale data processing tasks.
  • Arrow: DataBend leverages Apache Arrow, an in-memory columnar data format, to enable efficient data exchange between components and optimize query performance.

MongoDB Key Concepts

Some key terminology and concepts specific to MongoDB include:

  • Database: A MongoDB database is a container for collections, which are groups of related documents.
  • Collection: A collection in MongoDB is analogous to a table in relational databases, holding a set of documents.
  • Document: A document in MongoDB is a single record, stored in a JSON-like format called BSON (Binary JSON). Documents within a collection can have different structures.
  • Field: A field is a key-value pair within a document, similar to an attribute or column in a relational database.
  • Index: An index in MongoDB is a data structure that improves the query performance on specific fields within a collection.


DataBend Architecture

DataBend is built on a cloud-native, distributed architecture that supports both NoSQL and SQL-like querying capabilities. Its modular design allows users to choose and combine components based on their specific use case and requirements. The core components of DataBend’s architecture include DataFusion, Ballista, and the storage layer. DataFusion is responsible for query execution and optimization, while Ballista enables distributed computing for large-scale data processing tasks. The storage layer in DataBend can be configured to work with various storage backends, such as object storage or distributed file systems.

MongoDB Architecture

MongoDB’s architecture is centered around its flexible, document-based data model. As a NoSQL database, MongoDB supports a schema-less structure, which allows for the storage and querying of diverse data types, such as nested arrays and documents. MongoDB can be deployed as a standalone server, a replica set, or a sharded cluster. Replica sets provide high availability through automatic failover and data redundancy, while sharded clusters enable horizontal scaling and load balancing by distributing data across multiple servers based on a shard key.

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DataBend Features

Unified Batch and Stream Processing

DataBend supports both batch and streaming data processing, enabling users to build a wide range of applications that require real-time or historical data analysis.

Extensible Query Execution

DataBend’s DataFusion component provides a powerful and extensible query execution framework that supports both SQL and DataFrame-based query APIs.

Scalable Distributed Computing

With its Ballista compute platform, DataBend enables efficient and scalable execution of large-scale data processing tasks across a distributed cluster of nodes.

Flexible Storage

DataBend’s architecture allows users to configure the storage layer to work with various storage backends, providing flexibility and adaptability to different use cases.

MongoDB Features

Flexible Data Model

MongoDB’s schema-less data model allows for the storage and querying of diverse data types, making it well-suited for handling complex and evolving data structures.

High Availability

MongoDB’s replica set feature ensures high availability through automatic failover and data redundancy.

Horizontal Scalability

MongoDB’s sharded cluster architecture enables horizontal scaling and load balancing, allowing it to handle large-scale data processing and querying.


DataBend Use Cases

Real-Time Analytics

DataBend’s support for streaming data processing and its powerful query execution framework make it a suitable choice for building real-time analytics applications, such as log analysis, monitoring, and anomaly detection.

Data Warehousing

With its scalable distributed computing capabilities and flexible storage options, DataBend can be used to build large-scale data warehouses that can efficiently store and analyze vast amounts of structured and semi-structured data.

Machine Learning

DataBend’s ability to handle arge-scale data processing and its support for both batch and streaming data make it an excellent choice for machine learning applications. Users can leverage DataBend to preprocess, transform, and analyze data for feature engineering, model training, and evaluation, enabling them to derive valuable insights and build data-driven machine learning models.

MongoDB Use Cases

Content Management Systems

MongoDB’s flexible data model makes it an ideal choice for content management systems, which often require the ability to store and manage diverse content types, such as articles, images, and videos. The schema-less nature of MongoDB allows for easy adaptation to changing content structures and requirements.

IoT Data Storage and Analytics

MongoDB’s support for high data volumes and horizontal scalability makes it suitable for storing and processing data generated by IoT devices, such as sensor readings and device logs. Its ability to index and query data efficiently allows for real-time analytics and monitoring of IoT devices.

E-commerce Platforms

MongoDB’s flexibility and performance features make it an excellent choice for e-commerce platforms, where diverse product information, customer data, and transaction records need to be stored and queried efficiently. The flexible data model enables easy adaptation to changes in product attributes and customer preferences, while the high availability and scalability features ensure a smooth and responsive user experience.


DataBend Pricing Model

As an open-source project, DataBend is freely available for use without any licensing fees or subscription costs. Users can deploy and manage DataBend on their own infrastructure or opt for cloud-based deployment using popular cloud providers. DataBend itself also provides a managed cloud service with free trial credits available.

MongoDB Pricing Model

MongoDB offers various pricing options, including a free, open-source Community Edition and a commercial Enterprise Edition, which includes advanced features, management tools, and support. MongoDB Inc. also offers a fully managed cloud-based database-as-a-service, MongoDB Atlas, with a pay-as-you-go pricing model based on storage, data transfer, and compute resources. MongoDB Atlas offers a free tier with limited resources for users who want to try the service without incurring costs.