EMQX Tables is the fully managed time-series database in EMQX Cloud, powered by GreptimeDB. It stores and queries device telemetry and operational metrics. Enterprise is available for private deployments.

How does object storage reduce costs?

EMQX Tables combines object storage with data compression to reduce storage costs. Usage is measured after compression, with a storage allowance included in each plan. Beyond that allowance, additional compressed storage costs $0.04 per GB-month. Deployment and egress charges also apply.

How long can I retain my data?

You set the retention period for a database or table. Retained data remains queryable with SQL. Choose a policy that fits your history requirements and storage budget.

Do I need EMQX Broker to use Tables?

You can write data directly through the HTTP API using SQL or InfluxDB Line Protocol. For MQTT data, EMQX Broker provides built-in integration with rules to select and transform messages before storage.

Can I use Tables for data center observability?

Yes. Store infrastructure metrics such as GPU utilization, power, and temperature. Query them with SQL or PromQL and visualize them in tools such as Grafana. Configure your collection pipeline to write through a supported interface. See the HTTP API guide.

How do Starter, Pro, and Enterprise differ?

Starter uses a managed single node with SQL and PromQL queries, object storage and compression, and built-in EMQX Broker integration. Pro adds primary–standby high availability across availability zones, a 99.9% uptime SLA, 24×7 support, and production connectivity controls. Enterprise supports private cluster deployments on your infrastructure, with custom sizing and deployment. Contact us to discuss sizing or a move between plans.

Which clouds and regions are available?

Starter supports selected regions on AWS, Azure, and Google Cloud. Pro is currently available on AWS in Ohio and Google Cloud in Iowa. Private connectivity depends on your plan and network setup. Check the current region list.

EMQX Tables

Managed time-series
storage for MQTT data

Understand device behavior and trends over time. Query IoT telemetry with SQL or PromQL, fully managed in EMQX Cloud.

Average temperature by device · Last 24 hours

SELECT device_id,
  ROUND(AVG(temperature), 1) AS avg_temp
FROM sensor_metrics
WHERE ts >= now() - INTERVAL '24 hours'
GROUP BY device_id;

Illustrative query result
device_id	avg_temp (°C)
sensor-01	24.6
sensor-02	26.1
sensor-03	23.8

Average GPU utilization by rack · Last 24 hours

SELECT rack_id,
  ROUND(AVG(gpu_utilization), 1) AS avg_gpu_pct
FROM gpu_metrics
WHERE ts >= now() - INTERVAL '24 hours'
GROUP BY rack_id;

Illustrative query result
rack_id	avg_gpu_pct
rack-01	82.4
rack-02	67.8
rack-03	91.2

Why EMQX Tables

Make sense of your telemetry

Bring MQTT data, historical context, and SQL or PromQL queries together in one managed service.

Lower storage costs

Object storage and compression make it economical to retain the data your devices and infrastructure generate.

Built into EMQX Cloud

Send data from EMQX Broker through built-in integration. Manage messaging and storage in one console.

Database operations, handled

EMQ manages the infrastructure, backups, and maintenance. Choose Pro when your workload needs high availability.

Capabilities

Query the history behind your MQTT data

Explore the documentation

MQTT data ingestion

Select topics, extract fields, and write data from EMQX Broker with rules and a built-in connector.

Efficient storage

Retain telemetry for historical analysis on object storage. Compression reduces the space needed for long-term retention.

SQL and PromQL

Compare readings and track trends with SQL filters and aggregations. Query metrics with PromQL and visualize them in Grafana.

Retention controls

Set retention periods for databases and tables. Keep the history you need and expire older data automatically.

Familiar interfaces

Write through HTTP and InfluxDB Line Protocol. Explore data in the console or connect your existing tools.

Production controls

Set database and table permissions. Use private connectivity where supported and Pro for high availability.

Benefits

Put your history to work

Investigate incidents

Look back at the readings before and after an event to understand what changed.

Compare performance

Track equipment, energy use, and infrastructure utilization across weeks, months, and seasons.

Build better data features

Give customers historical views, usage reports, and device trends in your applications.

Use cases

From connected devices to AI data centers

Understand device behavior, compare performance, and investigate changes with historical telemetry.

See compute, power, and cooling together.

Compare GPU utilization with power and cooling metrics by rack and time. Keep the history needed to investigate incidents and plan capacity.

Discuss your workload

Plans & Pricing

Plans for your workload

Choose Starter for evaluation, Pro for high availability, or Enterprise on your infrastructure.

Explore Plans & Pricing

Customer story

In use at TVU Networks.

Media & broadcasting

Operational metrics for a global media platform.

TVU uses EMQX Tables to store MediaHub's operational metrics and service health data. InfluxDB Line Protocol connects its existing monitoring tools, while EMQX Broker handles service messaging.

Read Customer Story

FAQ

Frequently asked questions

Understand your telemetry with EMQX Tables

Contact Sales

Managed time-series
storage for MQTT data