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 Datadog and Graphite so you can quickly see how they compare against each other.

The primary purpose of this article is to compare how Datadog and Graphite 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.

Datadog vs Graphite Breakdown


 
Database Model

Cloud observability platform

Time series database

Architecture

Cloud-based SaaS platform

Graphite can be deployed on-premises or in the cloud, and it supports horizontal scaling by partitioning data across multiple backend nodes.

License

Close source

Apache 2.0

Use Cases

Infrastructure monitoring, application performance monitoring, log management

Monitoring, observability, IoT, real-time analytics, DevOps, application performance monitoring

Scalability

Horizontally scalable with built-in support for multi-cloud and global deployments.

Horizontally scalable, supports clustering and replication for high availability and performance

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Datadog Overview

Datadog is a monitoring and analytics platform that integrates and automates infrastructure monitoring, application performance monitoring (APM), and log management to provide unified, real-time observability of an organization’s entire technology stack. Founded in 2010, Datadog has rapidly become a go-to solution for cloud-scale monitoring, offering SaaS-based capabilities that enable businesses to improve agility, increase efficiency, and provide end-to-end visibility across dynamic, high-scale infrastructures.

Graphite Overview

Graphite is an open-source monitoring and graphing tool created in 2006 by Orbitz and open sourced in 2008. Graphite is designed for storing time series data and is widely used for collecting, storing, and visualizing metrics from various sources, such as application performance, system monitoring, and business analytics.


Datadog for Time Series Data

Datadog excels in handling time series data through its metrics-based architecture. It is optimized for collecting and analyzing data points over time, such as CPU usage, memory consumption, or request latency. While Datadog is not a dedicated time series database, it integrates features like long-term data retention, aggregation, and visualization that make it well-suited for monitoring time-dependent metrics. However, it might not be the ideal choice for massive-scale, real-time analytics compared to specialized time series databases like InfluxDB.

Graphite for Time Series Data

Graphite is specifically designed and optimized for time series data. It uses the Whisper database format, which efficiently stores and manages time series data by automatically aggregating and expiring data based on user-defined retention policies. Graphite supports a wide range of functions for querying, transforming, and aggregating time series data, enabling users to create custom graphs and dashboards. However, as Graphite focuses exclusively on time series data, it may not be suitable for other types of data or use cases that require more advanced data modeling or querying capabilities.


Datadog Key Concepts

  • Datadog Agent: The Datadog Agent is a lightweight software installed on your servers, containers, or endpoints to collect and report metrics, logs, and traces. It acts as the primary bridge between your systems and the Datadog platform.
  • Dashboards: Dashboards in Datadog provide a customizable interface to visualize metrics, logs, and traces. They support various widgets, including time-series graphs, gauges, and heat maps, to present data in a meaningful way.
  • Integration : Datadog supports over 600 integrations to connect with various technologies, such as databases, cloud providers, and container orchestrators. Each integration collects relevant metrics, logs, and events and may require specific configuration via the Agent.
  • Events: Events are data that are streamed to Datadog via Agents, integrations, or custom applications. They are streamed to Datadog and can be used for filtering and correlating what is happening in your application
  • Tagging : Tags are metadata assigned to metrics, logs, and traces to group, filter, and search data. Effective use of tags, such as environment, region, or service, is crucial for organizing and analyzing data efficiently.

Graphite Key Concepts

  • Metric: A metric in Graphite represents a time series data point, consisting of a path (name), timestamp, and value.
  • Series: A series is a collection of metrics that are all related to the same thing. For example, you might have a series for CPU usage, a series for memory usage, and a series for disk usage.
  • Whisper: Whisper is a fixed-size, file-based time series database format used by Graphite. It automatically manages data retention and aggregation.
  • Carbon: Carbon is the daemon responsible for receiving, caching, and storing metrics in Graphite. It listens for incoming metrics and writes them to Whisper files.
  • Graphite-web: Graphite-web is the web application that provides a user interface for visualizing and querying the stored time series data.


Datadog Architecture

Datadog employs a SaaS (Software-as-a-Service) model with a highly distributed, cloud-based architecture. It uses agents to collect data from various sources, which are then processed and stored in Datadog’s cloud. The platform supports both structured and unstructured data, and its backend utilizes modern distributed systems principles to ensure scalability and reliability. Key components include the data ingestion pipeline, a metrics store, a logs processing system, and a query engine.

Graphite Architecture

Graphite’s architecture consists of several components, including Carbon, Whisper, and Graphite-web. Carbon is responsible for receiving metrics from various sources, caching them in memory, and storing them in Whisper files. Whisper is a file-based time series database format that efficiently manages data retention and aggregation. Graphite-web is the web application that provides a user interface for querying and visualizing the stored time series data. Graphite can be deployed on a single server or distributed across multiple servers for improved performance and scalability.

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Datadog Features

Real-time dashboards

Datadog offers customizable, real-time dashboards that enable users to monitor a variety of metrics, traces, and logs all in one place. This centralized view aids in quick issue detection and resolution. These dashboards are interactive, enabling drilling down into granular details, facilitating precise troubleshooting and root cause analysis.

Automated alerts

Automated alerts in Datadog can notify teams of any issues or anomalies in real-time. These alerts can be fine-tuned to avoid noise and false positives, ensuring that only actionable insights get attention. They can also be integrated with third-party communication tools like Slack or PagerDuty for a seamless incident response.

Synthetic monitoring

Datadog’s synthetic monitoring allows users to simulate user transactions and monitor uptime, latency, and functionality of applications. This feature ensures that critical endpoints remain available and performant.

Graphite Features

Real-time monitoring and visualization

Graphite provides real-time monitoring and visualization capabilities, allowing users to track and analyze their time series data as it is collected.

Flexible querying and aggregation functions

Graphite supports a wide range of functions for querying, transforming, and aggregating time series data, enabling users to create custom graphs and dashboards tailored to their specific needs.

Data retention and aggregation

Graphite’s Whisper database format automatically manages data retention and aggregation, reducing storage requirements and improving query performance.


Datadog Use Cases

Infrastructure monitoring

One of the primary use-cases for Datadog is real-time infrastructure monitoring. Businesses can keep tabs on servers, containers, databases, and more, all in one place. The comprehensive coverage helps teams quickly identify performance bottlenecks or availability issues, thereby minimizing downtime and enhancing system reliability.

Application performance monitoring

Datadog’s APM capabilities enable organizations to trace requests as they traverse through various services and components of an application. This is essential for microservices architectures where understanding the interactions between services can be complex. It helps in identifying slow services that could be affecting the application’s overall performance.

Security monitoring

Datadog assists organizations in monitoring security-related events by collecting logs and metrics from various sources. It helps in detecting unusual activities, unauthorized access, and potential threats. By correlating data across the stack, security teams can investigate incidents more effectively. Datadog’s compliance monitoring features support adherence to standards like PCI DSS, HIPAA, and GDPR.

Graphite Use Cases

Application performance monitoring

Graphite is widely used for monitoring the performance of applications and services, helping developers and operations teams track key metrics, such as response times, error rates, and resource utilization. By visualizing these metrics in real-time, users can identify performance bottlenecks, detect issues, and optimize their applications for better performance and reliability.

Infrastructure and system monitoring

Graphite is also popular for monitoring the health and performance of servers, networks, and other infrastructure components. By collecting and analyzing metrics such as CPU usage, memory consumption, network latency, and disk I/O, IT administrators can ensure their infrastructure is running smoothly and proactively address potential issues before they impact system performance or availability.

Business analytics and metrics

In addition to technical monitoring, Graphite can be used for tracking and visualizing business-related metrics, such as user engagement, sales data, or marketing campaign performance. By visualizing and analyzing these metrics over time, business stakeholders can gain insights into trends, identify opportunities for growth, and make data-driven decisions to improve their operations.


Datadog Pricing Model

Datadog uses a modular, usage-based pricing model where customers pay based on the specific products and volume of data they use. Pricing is typically divided among different products like Infrastructure Monitoring, APM, Logs, and more. Each product has its own pricing structure, often based on the number of hosts, instances, or data ingested. Datadog offers a Free tier with limited features and data caps, as well as Pro and Enterprise tiers that provide advanced features and higher limits.

Graphite Pricing Model

Graphite is an open-source project, and as such, it is freely available for users to download, install, and use without any licensing fees. However, users are responsible for setting up and maintaining their own Graphite infrastructure, which may involve costs related to server hardware, storage, and operational expenses. There are also several commercial products and services that build on top of or integrate with Graphite, offering additional features, support, or managed hosting options at varying price points.