# Chariot MQTT Server **URL:** https://forum.cirrus-link.com/c/chariot-mqtt-server/9.md [Latest](https://forum.cirrus-link.com/latest.md) · [Categories](https://forum.cirrus-link.com/categories.md) · [Tags](https://forum.cirrus-link.com/tags.md) --- ## [About the Chariot MQTT Server category](https://forum.cirrus-link.com/t/about-the-chariot-mqtt-server-category/16)
**Author:** [@wes.johnson](https://forum.cirrus-link.com/u/wes.johnson)\ **Replies:** 1\ **Last updated:** [March 30, 2023, 12:23pm UTC](https://forum.cirrus-link.com/t/about-the-chariot-mqtt-server-category/16 "2023-03-30T12:23:06Z")
The Chariot MQTT Server category is a place for all discussion and questions about the Cirrus Link’s Chariot MQTT Server. Additional resources can be found below: Contact Sales Chariot MQTT Server Documentation Chariot… --- ## [Chariot Bridge Performance Testing](https://forum.cirrus-link.com/t/chariot-bridge-performance-testing/872)
**Author:** [@EricWhite](https://forum.cirrus-link.com/u/EricWhite)\ **Replies:** 1\ **Last updated:** [July 6, 2026, 6:11pm UTC](https://forum.cirrus-link.com/t/chariot-bridge-performance-testing/872 "2026-07-06T18:11:29Z")
Hi All, Has anyone done any performance testing on the Bridge component of Chariot? So far, I have been successfully Bridge raw/unfiltered production data over to our development environment as shown below. This allows… --- ## [Chariot Bridging for spBv1.0/# is Supported?](https://forum.cirrus-link.com/t/chariot-bridging-for-spbv1-0-is-supported/868)
**Author:** [@JEspinMartin](https://forum.cirrus-link.com/u/JEspinMartin)\ **Replies:** 2\ **Last updated:** [June 20, 2026, 11:45pm UTC](https://forum.cirrus-link.com/t/chariot-bridging-for-spbv1-0-is-supported/868 "2026-06-20T23:45:53Z")
Is spBv1.0/# messages supported (unsA1.0 is) for Chariot Brokers when Bridge is active (on one of them) and when subscribing with an external client to any of the brokers? I cannot find any documentation about it. --- ## [No client session \[\] found for packet of type PUBLISH, session has likely been disconnected](https://forum.cirrus-link.com/t/no-client-session-found-for-packet-of-type-publish-session-has-likely-been-disconnected/832)
**Author:** [@troybackus](https://forum.cirrus-link.com/u/troybackus)\ **Replies:** 7\ **Last updated:** [December 22, 2025, 10:43pm UTC](https://forum.cirrus-link.com/t/no-client-session-found-for-packet-of-type-publish-session-has-likely-been-disconnected/832 "2025-12-22T22:43:13Z")
Version 2.60 I have one client out of about 50 that is just not holding a connection. We thought network issues, but I am able to connect to the device via SSH with no issues and not being disconnected. Also have other … --- ## [Chariot $SYS topics](https://forum.cirrus-link.com/t/chariot-sys-topics/807)
**Author:** [@jvan](https://forum.cirrus-link.com/u/jvan)\ **Replies:** 1\ **Last updated:** [October 7, 2025, 6:14pm UTC](https://forum.cirrus-link.com/t/chariot-sys-topics/807 "2025-10-07T18:14:53Z")
Does Chariot publish any system info/diagnostics to $SYS topics? Or should the API be used for monitoring instead? --- ## [LDAP Group Mapping Issue – groupMemberAttribute Hardcoded to member Instead of memberUid (v2.6.0)](https://forum.cirrus-link.com/t/ldap-group-mapping-issue-groupmemberattribute-hardcoded-to-member-instead-of-memberuid-v2-6-0/788)
**Author:** [@arya\_d](https://forum.cirrus-link.com/u/arya_d)\ **Replies:** 1\ **Last updated:** [August 13, 2025, 8:51pm UTC](https://forum.cirrus-link.com/t/ldap-group-mapping-issue-groupmemberattribute-hardcoded-to-member-instead-of-memberuid-v2-6-0/788 "2025-08-13T20:51:59Z")
Hi Team, I’m running Chariot MQTT v2.6.0 on bare metal (systemd service) and am trying to integrate it with our corporate LDAP to authenticate users and map admin roles based on LDAP groups. Our current setup: LDAP … --- ## [AWS Chariot Server - Topic Limit](https://forum.cirrus-link.com/t/aws-chariot-server-topic-limit/752)
**Author:** [@EricWhite](https://forum.cirrus-link.com/u/EricWhite)\ **Replies:** 4\ **Last updated:** [June 10, 2025, 10:22pm UTC](https://forum.cirrus-link.com/t/aws-chariot-server-topic-limit/752 "2025-06-10T22:22:36Z")
Hello. When publishing from Ignition with UNS Transmitter, I’m getting the following warning on my Chariot Server. PUBLISH - topic with 11 levels exceeds max allowed 10 levels I didn’t think there was a limit on top… --- ## [Chariot MQTT Client - TLS](https://forum.cirrus-link.com/t/chariot-mqtt-client-tls/636)
**Author:** [@ryangerken](https://forum.cirrus-link.com/u/ryangerken)\ **Replies:** 8\ **Last updated:** [October 9, 2024, 8:06pm UTC](https://forum.cirrus-link.com/t/chariot-mqtt-client-tls/636 "2024-10-09T20:06:49Z")
I have TLS configured and working on my Chariot MQTT server - and can connect to it securely using an MQTTX client without issue. When attempting to do this using the new Chariot MQTT Client - I get the following error: … --- ## [Establishing SSL connection between IOT Bridge for Snowflake and MQTT Server](https://forum.cirrus-link.com/t/establishing-ssl-connection-between-iot-bridge-for-snowflake-and-mqtt-server/567)
**Author:** [@shubhi8256](https://forum.cirrus-link.com/u/shubhi8256)\ **Replies:** 4\ **Last updated:** [May 16, 2024, 7:40am UTC](https://forum.cirrus-link.com/t/establishing-ssl-connection-between-iot-bridge-for-snowflake-and-mqtt-server/567 "2024-05-16T07:40:03Z")
Hi Everyone, I’m just a beginner and have no experience in networks. I need to connect the IOT Bridge for Snowflake to the Chariot MQTT Server. The document I’m referring to for IOT Bridge setup: https://docs.chariot.i… --- ## [CPU Usage 90-100%](https://forum.cirrus-link.com/t/cpu-usage-90-100/423)
**Author:** [@JoseJardel](https://forum.cirrus-link.com/u/JoseJardel)\ **Replies:** 3\ **Last updated:** [November 8, 2023, 5:16pm UTC](https://forum.cirrus-link.com/t/cpu-usage-90-100/423 "2023-11-08T17:16:40Z")
I have a problem that every two days the use of Java on our broker server is crashing above 90%, most of the time staying at 100%. When I restart the instance, CPU usage stays below 2-3% for about 46-48 hours. 2vcpu 4… --- ## [Ignition SSL/TLS 8883](https://forum.cirrus-link.com/t/ignition-ssl-tls-8883/391)
**Author:** [@cnettleman](https://forum.cirrus-link.com/u/cnettleman)\ **Replies:** 3\ **Last updated:** [July 26, 2023, 5:37pm UTC](https://forum.cirrus-link.com/t/ignition-ssl-tls-8883/391 "2023-07-26T17:37:32Z")
First post. Be kind, please. I’m trying to secure a connection using your Mosquitto Broker and OpenSSL solution on Ignition installed on three Windows Server 2019 VMs in my test environment. I had it working in one sc… --- ## [Error closing inbound of SSL/TLS connection](https://forum.cirrus-link.com/t/error-closing-inbound-of-ssl-tls-connection/278)
**Author:** [@taylor.koch](https://forum.cirrus-link.com/u/taylor.koch)\ **Replies:** 1\ **Last updated:** [November 1, 2022, 10:48pm UTC](https://forum.cirrus-link.com/t/error-closing-inbound-of-ssl-tls-connection/278 "2022-11-01T22:48:01Z")
Hello and apologies if this is the wrong place for this question. I am having an issue with a (Python) paho-mqtt client connection receiving a \[SSL: TLSV1\_ALERT\_INTERNAL\_ERROR\] tlsv1 alert internal error from Chariot (a… --- ## [Web Data using MQTT](https://forum.cirrus-link.com/t/web-data-using-mqtt/160)
**Author:** [@DdCamp](https://forum.cirrus-link.com/u/DdCamp)\ **Replies:** 1\ **Last updated:** [February 14, 2022, 6:14pm UTC](https://forum.cirrus-link.com/t/web-data-using-mqtt/160 "2022-02-14T18:14:09Z")
First Post did not know where to put this? Don’t know if this is possible? I would like to get the “WTI” market value of crude oil, does any of the stock market values get published to some MQTT broker that I could sub… --- ## [Subscribe and decode Sparkplug B payloads with custom code](https://forum.cirrus-link.com/t/subscribe-and-decode-sparkplug-b-payloads-with-custom-code/150)
**Author:** [@damien.tiede](https://forum.cirrus-link.com/u/damien.tiede)\ **Replies:** 3\ **Last updated:** [January 12, 2022, 12:49am UTC](https://forum.cirrus-link.com/t/subscribe-and-decode-sparkplug-b-payloads-with-custom-code/150 "2022-01-12T00:49:05Z")
Hi there, We would like to create a custom app that subscribes to topics in the MQTT broker in Ignition Distribution module. Are there any examples in your developer docs that demonstrate how to do this ? Specifically,… --- ## [Error after update](https://forum.cirrus-link.com/t/error-after-update/145)
**Author:** [@JoseJardel](https://forum.cirrus-link.com/u/JoseJardel)\ **Replies:** 1\ **Last updated:** [January 3, 2022, 4:59pm UTC](https://forum.cirrus-link.com/t/error-after-update/145 "2022-01-03T16:59:23Z")
I have an error updating the system. We currently have version 2.0.0-beta1, however, when updating the version to the most current one, the error of the image available appears in the e-mail. What did I do? I performed… --- ## [Transmitting Tags with UDTs](https://forum.cirrus-link.com/t/transmitting-tags-with-udts/119)
**Author:** [@Jacob](https://forum.cirrus-link.com/u/Jacob)\ **Replies:** 6\ **Last updated:** [September 16, 2021, 5:07pm UTC](https://forum.cirrus-link.com/t/transmitting-tags-with-udts/119 "2021-09-16T17:07:10Z")
I am attempting to send tags from one Ignition gateway to another using the Transmission module. I am able to send tag folders under the default tag provider when the tags in those folders don’t contain UDT instances. A… --- ## [Usage of templates in Sparkplug Payload](https://forum.cirrus-link.com/t/usage-of-templates-in-sparkplug-payload/79)
**Author:** [@jeoppman](https://forum.cirrus-link.com/u/jeoppman)\ **Replies:** 1\ **Last updated:** [April 26, 2021, 3:29pm UTC](https://forum.cirrus-link.com/t/usage-of-templates-in-sparkplug-payload/79 "2021-04-26T15:29:37Z")
Hi there, we like to use the Sparkplug Standard for our pumps (www.wilo.com) to communicate with a cloud platform. We are wondering about the usage of templates. Are they defined with a NBIRTH telegram and then create a… --- ## [Examples and Implementation Question](https://forum.cirrus-link.com/t/examples-and-implementation-question/61)
**Author:** [@Slowlaurus88](https://forum.cirrus-link.com/u/Slowlaurus88)\ **Replies:** 3\ **Last updated:** [March 17, 2021, 6:04am UTC](https://forum.cirrus-link.com/t/examples-and-implementation-question/61 "2021-03-17T06:04:02Z")
First off, I want to thank you all at Cirrus Link for the work you’ve put into making MQTT implementation more robust and integrated. First and foremost, I’m an integrator, not a full-scale software developer, so I apolo… --- ## [OASyS SCADA, Autosol, PI](https://forum.cirrus-link.com/t/oasys-scada-autosol-pi/53)
**Author:** [@tkim2004](https://forum.cirrus-link.com/u/tkim2004)\ **Replies:** 1\ **Last updated:** [March 3, 2021, 3:02pm UTC](https://forum.cirrus-link.com/t/oasys-scada-autosol-pi/53 "2021-03-03T15:02:15Z")
Does anyone know if OASyS SCADA, Autosol, or PI can talk MQTT protocol natively?