# \#epl-apps **URL:** https://community.cumulocity.com/tag/epl-apps/1399.md [Latest](https://community.cumulocity.com/latest.md) · [Categories](https://community.cumulocity.com/categories.md) · [Tags](https://community.cumulocity.com/tags.md) --- ## [Apama Cumulocity Connection Concurrency](https://community.cumulocity.com/t/apama-cumulocity-connection-concurrency/15105)
**Author:** [@Mario\_Heidenreich2](https://community.cumulocity.com/u/Mario_Heidenreich2)\ **Replies:** 3\ **Last updated:** [August 20, 2026, 9:26am UTC](https://community.cumulocity.com/t/apama-cumulocity-connection-concurrency/15105 "2026-08-20T09:26:04Z")
Hi all, I’m trying to optimize a bunch of custom EPL code running with the Cumulocity Connectivity and I want to optimize the inbound/outbound handling. I had a look at the doc but it’s not clear for me what this means: … --- ## [Cost of monitor.subscribe](https://community.cumulocity.com/t/cost-of-monitor-subscribe/15003)
**Author:** [@Mario\_Heidenreich2](https://community.cumulocity.com/u/Mario_Heidenreich2)\ **Replies:** 1\ **Last updated:** [July 3, 2026, 8:19am UTC](https://community.cumulocity.com/t/cost-of-monitor-subscribe/15003 "2026-07-03T08:19:31Z")
Hi all, I know that the recommended way is to only subscribe to channels when necessary and unsubscribe when they are not needed anymore. But what is actually the overhead of a subscription? Will it copy events per sub… --- ## [Getting Started with Apama as Dev Container (Local Development)](https://community.cumulocity.com/t/getting-started-with-apama-as-dev-container-local-development/12295)
**Author:** [@Vachaspati\_Diwevedi2](https://community.cumulocity.com/u/Vachaspati_Diwevedi2)\ **Replies:** 0\ **Last updated:** [August 18, 2025, 7:11am UTC](https://community.cumulocity.com/t/getting-started-with-apama-as-dev-container-local-development/12295 "2025-08-18T07:11:47Z")
Getting Started with Apama This guide will walk you through setting up Apama on a local Debian environment using WSL2, integrating it with Visual Studio Code, and leveraging the Apama extension for development. Step-by… --- ## [How to schedule An Epl](https://community.cumulocity.com/t/how-to-schedule-an-epl/796)
**Author:** [@jkpatil1010](https://community.cumulocity.com/u/jkpatil1010)\ **Replies:** 5\ **Last updated:** [March 26, 2024, 6:57pm UTC](https://community.cumulocity.com/t/how-to-schedule-an-epl/796 "2024-03-26T18:57:27Z")
Hi, i want to write an epl that listens to two different devices at every 15min interval. and read the measurement data from both the devices and send a new calculated data to a third device. provide me with reference… --- ## [Need to calculate average of measurement in java microservice](https://community.cumulocity.com/t/need-to-calculate-average-of-measurement-in-java-microservice/3484)
**Author:** [@jkpatil1010](https://community.cumulocity.com/u/jkpatil1010)\ **Replies:** 5\ **Last updated:** [January 31, 2024, 4:35pm UTC](https://community.cumulocity.com/t/need-to-calculate-average-of-measurement-in-java-microservice/3484 "2024-01-31T16:35:35Z")
Hi, we have option to calculate measurement average in Epl, as using com.apama.aggregates.avg; using com.apama.aggregates.last; using com.apama.cumulocity.Measurement; monitor HourlyAvgMeasurementDeviceContext { ev… --- ## [I want to send a notification , once I clear the alarm manually from device management](https://community.cumulocity.com/t/i-want-to-send-a-notification-once-i-clear-the-alarm-manually-from-device-management/2418)
**Author:** [@jkpatil1010](https://community.cumulocity.com/u/jkpatil1010)\ **Replies:** 4\ **Last updated:** [December 8, 2023, 7:36am UTC](https://community.cumulocity.com/t/i-want-to-send-a-notification-once-i-clear-the-alarm-manually-from-device-management/2418 "2023-12-08T07:36:06Z")
Hi, i want to send the notification as soon as i clear the alarm manually from the device management through EPL, please give code snippet or solution for this. Thank yoo --- ## [How to execute on all Measurement in a sequence](https://community.cumulocity.com/t/how-to-execute-on-all-measurement-in-a-sequence/3982)
**Author:** [@gabriele.chiossi](https://community.cumulocity.com/u/gabriele.chiossi)\ **Replies:** 3\ **Last updated:** [October 23, 2023, 5:51am UTC](https://community.cumulocity.com/t/how-to-execute-on-all-measurement-in-a-sequence/3982 "2023-10-23T05:51:52Z")
Hello, I have a 64-bit CAN message that I am splitting as two 32-bit registers in the device protocol. Then with an EPL, I want to read the first register, let’s call it MEASUREMENT\_TYPE\_A , and then the second one, th… --- ## [Multiple on all measumerent under one one monitor](https://community.cumulocity.com/t/multiple-on-all-measumerent-under-one-one-monitor/3918)
**Author:** [@gabriele.chiossi](https://community.cumulocity.com/u/gabriele.chiossi)\ **Replies:** 1\ **Last updated:** [October 9, 2023, 3:40pm UTC](https://community.cumulocity.com/t/multiple-on-all-measumerent-under-one-one-monitor/3918 "2023-10-09T15:40:26Z")
hello all, how can I have two on all measurements under one monitor? I am trying to do something like this, but only the first on all Measurement works while the second one does not, what do I have to fix? monitor xxx… --- ## [Getting started with Streaming Analytics EPL apps](https://community.cumulocity.com/t/getting-started-with-streaming-analytics-epl-apps/1511)
**Author:** [@Melanie\_Monnereau](https://community.cumulocity.com/u/Melanie_Monnereau)\ **Replies:** 0\ **Last updated:** [November 15, 2022, 4:48pm UTC](https://community.cumulocity.com/t/getting-started-with-streaming-analytics-epl-apps/1511 "2022-11-15T16:48:32Z")
Introduction Many IoT Solutions (if not all) need to perform some real-time analytics on their connected devices data. Cumulocity IoT offers different tools to achieve this; starting from the easy-peasy Smart Rules, mo… --- ## [Managing device alarms in Cumulocity IoT in a functional style](https://community.cumulocity.com/t/managing-device-alarms-in-cumulocity-iot-in-a-functional-style/7321)
**Author:** [@Matthew\_Johnson](https://community.cumulocity.com/u/Matthew_Johnson)\ **Replies:** 1\ **Last updated:** [July 28, 2023, 8:49am UTC](https://community.cumulocity.com/t/managing-device-alarms-in-cumulocity-iot-in-a-functional-style/7321 "2023-07-28T08:49:57Z")
Apama Streaming Analytics version 10.15.3 and above. Cumulocity IoT version 10.17 and above. The task The task we’re going to tackle in this post is, given a list of devices in the form of an EPL sequence\ **Author:** [@Apama\_team](https://community.cumulocity.com/u/Apama_team)\ **Replies:** 0\ **Last updated:** [September 3, 2020, 9:00pm UTC](https://community.cumulocity.com/t/running-tests-on-epl-apps/4236 "2020-09-03T21:00:00Z") Introduction Following on from the first blog post that introduces our new Apama EPL Apps tools SDK, the aim of this article is to take you through the steps involved in creating and running tests on your EPL apps. If … --- ## [Community round-up – Functional EPL](https://community.cumulocity.com/t/community-round-up-functional-epl/2936)
**Author:** [@Apama\_team](https://community.cumulocity.com/u/Apama_team)\ **Replies:** 0\ **Last updated:** [February 2, 2021, 10:00pm UTC](https://community.cumulocity.com/t/community-round-up-functional-epl/2936 "2021-02-02T22:00:00Z")
While Software AG is busy adding features to Apama, the community is busy creating and publishing things as well. We maintain an index of the various community-created projects here. We hope that these community librar… --- ## [Community round-up – Localization, authentication and home automation plug-ins](https://community.cumulocity.com/t/community-round-up-localization-authentication-and-home-automation-plug-ins/105)
**Author:** [@Apama\_team](https://community.cumulocity.com/u/Apama_team)\ **Replies:** 0\ **Last updated:** [January 14, 2021, 10:00pm UTC](https://community.cumulocity.com/t/community-round-up-localization-authentication-and-home-automation-plug-ins/105 "2021-01-14T22:00:00Z")
While Software AG is busy adding features to Apama, the community is busy creating and publishing things as well. We maintain an index of the various community-created projects here. We hope that these community librar… --- ## [Community round-up – container types and complex number libraries](https://community.cumulocity.com/t/community-round-up-container-types-and-complex-number-libraries/5646)
**Author:** [@Apama\_team](https://community.cumulocity.com/u/Apama_team)\ **Replies:** 0\ **Last updated:** [January 3, 2021, 10:00pm UTC](https://community.cumulocity.com/t/community-round-up-container-types-and-complex-number-libraries/5646 "2021-01-03T22:00:00Z")
While Software AG is busy adding features to Apama, the community is busy creating and publishing things as well. We maintain an index of the various community-created projects on GitHub. We hope that these community l… --- ## [Modelling a biscuit factory robot with Apama, Lego Mindstorms EV3 and a BrickPi](https://community.cumulocity.com/t/modelling-a-biscuit-factory-robot-with-apama-lego-mindstorms-ev3-and-a-brickpi/7370)
**Author:** [@Apama\_team](https://community.cumulocity.com/u/Apama_team)\ **Replies:** 0\ **Last updated:** [December 16, 2020, 10:00pm UTC](https://community.cumulocity.com/t/modelling-a-biscuit-factory-robot-with-apama-lego-mindstorms-ev3-and-a-brickpi/7370 "2020-12-16T22:00:00Z")
There have been a few new starters in the Apama team over the last 12 months and the idea for “EPL Club” came up where us newbies would get together with coffee and biscuits to develop our EPL knowledge with a ‘real’ p… --- ## [Internship and Enhancing EPL Testing (Part 1)](https://community.cumulocity.com/t/internship-and-enhancing-epl-testing-part-1/2693)
**Author:** [@Apama\_team](https://community.cumulocity.com/u/Apama_team)\ **Replies:** 0\ **Last updated:** [September 13, 2020, 9:00pm UTC](https://community.cumulocity.com/t/internship-and-enhancing-epl-testing-part-1/2693 "2020-09-13T21:00:00Z")
Introduction Any software engineer who’s had to deal with unit testing will know the frustrating experience it can be. Whether it’s the steep learning curve of having to learn a new framework or language, unhelpful log… --- ## [Introducing the EPL Apps tools SDK](https://community.cumulocity.com/t/introducing-the-epl-apps-tools-sdk/3698)
**Author:** [@Apama\_team](https://community.cumulocity.com/u/Apama_team)\ **Replies:** 0\ **Last updated:** [July 19, 2020, 9:00pm UTC](https://community.cumulocity.com/t/introducing-the-epl-apps-tools-sdk/3698 "2020-07-19T21:00:00Z")
Calling all Apama EPL Apps users – from Apama 10.5.3! Within Cumulocity IoT the “Apama EPL Apps” product component allows a user to deploy Streaming Analytics solution elements in the form of single EPL files. Are you… --- ## [Introducing the Apama Log Analyzer](https://community.cumulocity.com/t/introducing-the-apama-log-analyzer/7265)
**Author:** [@Apama\_team](https://community.cumulocity.com/u/Apama_team)\ **Replies:** 0\ **Last updated:** [June 11, 2020, 9:00pm UTC](https://community.cumulocity.com/t/introducing-the-apama-log-analyzer/7265 "2020-06-11T21:00:00Z")
Here in the Apama R&D team we’re not only passionate about delivering great products but we also love to find creative ways to empower our users to quickly analyze and solve any problems in the applications you’re buil…