Open-source IoT Platform

Device management, data collection, processing and visualization
for your IoT projects
Learn about Thingsboard

Friday, March 24, 2017

Thingsboard 1.2.2 Release

We are pleased to announce today the availability of Thingsboard 1.2.2 release that includes minor improvements and critical bug fixes.

What’s new:

Improvements:
  • IE browser support.
  • Ability to change language in user profile.
  • Korean localization.
Bug fixes:
  • Fixed widget creation in Google Chrome.
  • Fixed session management for Gateway MQTT session.
  • Minor UI bug fixes.

    Availability

    Thingsboard 1.2.2 is available for download via the open source repository hosted on GitHub. To get started with Thingsboard try our Hello World guide or watch Getting Started Video. In order to upgrade previous Thingsboard installation follow the upgrade instructions.

    Thursday, March 23, 2017

    Thingsboard IoT Gateway now supports Sigfox integration


    We are pleased to announce today the availability of Thingsboard IoT Gateway v1.2. This release includes some bug fixes and integration with Sigfox. Now you are able to stream data from Sigfox Backend to Thingsboard for reliable and efficient storage, visualization and analytics.

    Thingsboard IoT Gateway 1.2 is available for download via the open source repository hosted on GitHub. To get started with the gateway try our Getting Started guide. In order to upgrade previous Thingsboard IoT Gateway installation follow the upgrade instructions.

    Thursday, March 16, 2017

    Thingsboard 1.2.1 Release

    We are pleased to announce today the availability of Thingsboard 1.2.1 release that includes minor improvements and critical bug fixes.

    What’s new:

    Improvements:
    • Fixed activation links for new users.
    • Switch dashboards using dashboard toolbar.
    • Import/export for plugins, rules, widget bundles and widget types.
    • Separate dispatchers for system and tenant rule/plugin actors.
    • Tenant is now able to see assigned and unassigned dashboards on the Dashboards page.
    • Windows build from sources.
    Bug fixes:
    • Fixed activation links for new users.
    • Fixed REST API to fetch time-series data
    • Fixed RPC and Table widgets functionality.

      Availability

      Thingsboard 1.2.1 is available for download via the open source repository hosted on GitHub. To get started with Thingsboard try our Hello World guide or watch Getting Started Video. In order to upgrade previous Thingsboard installation follow the upgrade instructions.

      Thursday, March 9, 2017

      Thingsboard 1.2.0 Release

      We are pleased to announce today the availability of Thingsboard 1.2 release that includes numerous UI improvements, data aggregation functionality, bug fixes and more.

      What’s new:

      • UI Improvements:
        • Global time selector.
        • Bar Chart widget.
        • Advanced legend integrated to Timeseries chart.
        • Advanced Tooltips.
        • Significant refactoring of widgets library API.
        • Zoom-in ability for timeseries charts.
      • Real-time data aggregation to speedup historical queries.
      • Ability to configure device aliases based on the name filter or predefined devices list.
      • Ability to switch devices in the dashboards.
      • Ability to setup default dashboard for user.
      • Ability to choose fullscreen by default for the dashboard.
      • Automatic updates checking feature.
      • Gateway MQTT API improvement for RPC and Attributes.

      Availability

      Thingsboard 1.2 is available for download via the open source repository hosted on GitHub. To get started with Thingsboard try our Hello World guide or watch Getting Started Video. In order to upgrade previous Thingsboard installation follow the upgrade instructions.

      Thursday, February 9, 2017

      Load testing of MQTT servers using Java, Maven and Gatling

      The rapid growth of IoT market dramatically increased the popularity of MQTT protocol. MQTT is supported by the most popular IoT platforms and is used for data collection, push notifications, real-time messaging and other.

      We would like to share our experience with running performance tests against MQTT servers in this article. We are going to concentrate on the tools that we used to generate load on the server. The results of the performance tests for our platform will be published as a separate post.

      Gatling

      We have chosen Gatling as a framework to run our test due to a number of reasons:

      • Generates beautiful reports out-of-the-box.
      • High performance and low overhead.
      • Easy setup of load scenarios.
      • Scalability of simulations.

      Unfortunately Gatling.io framework doesn’t support MQTT protocol out-of-the-box. At the same time Gatling is an open-source framework and we have found an unofficial MQTT plugin.

      Gatling MQTT Plugin

      Gatling-MQTT plugin was developed by Muneyuki Noguchi and at the moment it is hosted on GitHub under Apache 2.0 License. We have started implementation of Thingsboard performance testing project using Gatling and Gatling-MQTT plugin. Some time later we have realized that the plugin doesn’t support scenarios that we would like to verify and the behaviour of default scenario is not something that we have expected.

      The problem with the default scenario of the unofficial Gatling-MQTT plugin is that each time when some data is published, client waits for reply from server and sends MQTT disconnect. So, the message sequence looks like this:

      image

      This approach is very resource consuming and gives minimal benefits comparing to HTTP or other protocols. This behaviour is normal for HTTP requests-response model, but not for MQTT. The typical MQTT session is maintained for certain time and multiple MQTT publish messages are sent and received between client and MQTT broker. Of course, there are other types of MQTT messages, but they were out of scope for our tests. In our scenario, load testing of the IOT platform must be done in the following way:

      image

      So once we have connected a device to the IOT platform that acts as an MQTT broker, we will reuse session and publish MQTT messages using the same session. Sure, the session could be recreated at some point, but not every time we would like to publish a message to the server.

      In order to support this scenario, we have decided not to implement something new from the scratch, but rather to use Gatling-MQTT plugin as a base and considering fact that this is open-source we are free to modify the software as we wish to meet our needs.

      Gatling MQTT Plugin Fork

      We have done the fork of Gatling-MQTT plugin, spent some time on investigation how the plugin was constructed, modified it and added Connect, Publish and Disconnect actions as separate steps.

      Now we were able to support the expected scenario. The extended version of Gatling-MQTT plugin is located here Extended Gatling-MQTT.

      Finally, we were able to implement the scenario that suits our needs. The Gatling simulation below will create separate MQTT session for 10 simulated devices and will send 100 publish messages for each session.

      MqttSimulation.scala

      class MqttSimulation extends Simulation {
          val mqttConfiguration = mqtt
              // MQTT broker
              .host("tcp://localhost:1883")
          
          val connect = exec(mqtt("connect")
              .connect())
          
          // send 100 publish MQTT messages
          val publish = repeat(100) {
              exec(mqtt("publish")
                  // topic: "foo"
                  // payload: "Hello"
                  // QoS: AT_LEAST_ONCE (1)
                  // retain: false
                  .publish("foo", "Hello", QoS.AT_LEAST_ONCE, retain = false))
                  // 1 seconds pause between sending messages
                  .pause(1000 milliseconds)
              }
          
          val disconnect = exec(mqtt("disconnect")
            .disconnect())
          
          val scn = scenario("MQTT Test")
            .exec(connect, publish, disconnect)
          
          setUp(scn
              // linearly connect 10 devices over 1 second 
              // and send 100 publish messages
              .inject(rampUsers(10) over (1 seconds))
          ).protocols(mqttConfiguration)
      }
      

      Performance tests project

      Our performance test project is hosted on GitHub. It is mainly written in Java and uses Maven as a build tool. Gatling and Gatling-MQTT plugin are written in Scala, and use SBT tool for building sources and running tests. But here, at Thingsboard, we are more Java guys than Scala, that’s why we have implemented custom Java code that connects to the platform, creates a device, warms it up and provides the credentials id string back:

      MqttSimulation.scala

      // get the device credential ids of the created devices
      val deviceCredentialsIds: Array[String] = MqttStressTestTool.createDevices(testParams).asScala.toArray
      

      MqttStressTestTool.java

      RestClient restClient = new RestClient(params.getRestApiUrl());
      // login to the Thingsboard server
      restClient.login(params.getUsername(), params.getPassword());
      for (int i = 0; i < params.getDeviceCount(); i++) {
          // create device using REST API
          Device device = restClient.createDevice("Device " + UUID.randomUUID());
          // get credentials from the created device
          DeviceCredentials credentials = restClient.getCredentials(device.getId());
          // store in the array that eventually will be used by Simulation class    
          deviceCredentialsIds.add(credentials.getCredentialsId());
          String[] mqttUrls = params.getMqttUrls();
          String mqttURL = mqttUrls[i % mqttUrls.length];
          MqttStressTestClient client = new MqttStressTestClient(results, mqttURL, credentials.getCredentialsId());
          // connect to the server and do the warm up 
          client.connect().waitForCompletion();
          client.warmUp(data);
          client.disconnect();
      }
      Thread.sleep(1000);
      

      The list of credential ids is used in MqttSimulation.scala file to do the stress test itself:

      // get the device credential ids of the created devices
      val deviceCredentialsIds: Array[String] = MqttStressTestTool.createDevices(testParams).asScala.toArray
      
      // provide device credential id as username during the connection phase to the Thingsboard server
      val mqttConf = mqtt
          .host(testParams.getMqttUrls.head)
          .userName("${deviceCredentialsId}")
      
      val connect = exec(mqtt("connect").connect())
      
      val publish = repeat(testParams.getPublishTelemetryCount.toInt) {
          exec(mqtt("publish") 
              // publish single message and verify that it was delivered at least once
              .publish("v1/devices/me/telemetry", "{\"temp\":73.2}", QoS.AT_LEAST_ONCE, retain = false))
              .pause(testParams.getPublishTelemetryPause milliseconds)
      }
      
      val disconnect = exec(mqtt("disconnect").disconnect())
      // create map of device credential ids of the connected devices  
      // and use it as a feeder in the scenario
      val deviceCredentialsIdsFeeder = deviceCredentialsIds.map( x => {Map("deviceCredentialsId" -> x)})
      
      val scn = scenario("Scenario Name")
          // go over the map and take column deviceCredentialsId as username
          .feed(deviceCredentialsIdsFeeder)
          .exec(connect, publish, disconnect)
      
      setUp(scn
          .inject(rampUsers(deviceCredentialsIds.length) over (1 seconds))
      ).protocols(mqttConf)
      

      For the guys who prefer Java and Maven there is a maven plugin - gatling-maven-plugin:

      <plugin>
          <groupId>io.gatling</groupId>
          <artifactId>gatling-maven-plugin</artifactId>
      </plugin>
      

      This plugin finds Simulation files in your project, compiles and runs them. Results will be stored inside of the target folder in a pretty format that you are able to inspect after the run:

      image

      image

      image

      To run the tests you simply can type:

      mvn clean install gatling:execute
      

      Summary

      In general, we have described our approach how we have generated high load on our IoT platform and verified that it provides good results.

      We will share the results of Thingsboard IoT platform performance tests in the next post.

      Also, we’ll describe code changes, improvements and instances tuning that we have done to achieve processing of more than 1 million MQTT messages per minute. These are basically the first steps for us in the direction of performance testing of the platform, and any feedback regarding this approach is more than welcome.

      We hope that the experience provided will help you to verify your solutions against load specifications that you expect to see in the production. Stay tuned by subscribing to our twitter, blog or by starring our project on Github.

      Tuesday, February 7, 2017

      Thingsboard IoT Gateway Release

      We are pleased to announce today the availability of Thingsboard IoT Gateway - an open-source solution that allows you to integrate devices connected to existing legacy and third-party systems with Thingsboard.

      Gateway features:

      • OPC-UA extension to collect data from devices that are connected to OPC-UA servers.
      • MQTT extension to collect data that is published to external MQTT brokers.
      • Persistence of collected data to guarantee data delivery in case of network and hardware failures.
      • Automatic reconnect to Thingsboard cluster.
      • Simple yet powerful mapping of incoming data and messages to unified format.

      Availability

      Thingsboard IoT Gateway 1.0 is available for download via the open source repository hosted on GitHub. To get started with Thingsboard IoT Gateway try our getting started guide.

      Thingsboard 1.1.0 Release

      We are pleased to announce today the availability of Thingsboard 1.1.0, minor release that includes functionality to import-export widgets and dashboards, bug fixes and more.

      What’s new:

      • X.509 Certificates support as client credentials options
      • Map widgets improvements
      • Timeseries table widget
      • HTML card widget
      • MQTT API for Thingsboard Gateway
      • Windows installation package
      • Improved websocket connection handling and security
      • Bug fixes

      Availability

      Thingsboard 1.1.0 is available for download via the open source repository hosted on GitHub. To get started with Thingsboard try our Hello World guide or watch Getting Started Video. In order to upgrade previous Thingsboard installation follow the upgrade instructions.