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Iesoft Labs

ThingSphere

Iesoft's own IoT platform, load-tested past a million devices connected at the same time.

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Sector
IoT platform
Year
2019
Concurrent connections
1.536M
Brokers
6
IL-06 · spec sheet

in

  • MQTT from every device
  • Connection storms and reconnects
  • Distributed load generators sending real traffic

engine

  • Six brokers in a cluster
  • Load balancer, kernel and TCP stacks tuned together
  • Message traffic measured, not just open sockets

out

  • 1.536 million concurrent connections
  • A write-up of what broke and what held
  • A platform sized for a national fleet

The detailWe built the load-testing rig as well as the platform: distributed generators sending real message traffic, not idle connections.

Practice: Scale is measured, not claimed

The problem

IoT platforms are easy to demo with a few hundred devices and hard to trust at a national scale. Connection storms, reconnects and uneven traffic break systems that looked fine in testing.

What we built

ThingSphere, Iesoft’s own IoT platform, and the load-testing rig to prove it. We drove it past a million devices connected at the same time over MQTT, with distributed load generators sending real message traffic.

How it works

Devices connect over MQTT to a cluster of brokers. The test reached 1.536 million concurrent connections across six brokers. Beyond 1 Million Connected Devices covers how we ran it.

Writing on this

Field report · 20 Feb 2024On the Iesoft blogBeyond 1 Million Connected DevicesHow we load-tested ThingSphere past a million devices connected at the same time over MQTT.

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