About evQueue

evQueue is an open source job scheduler and queueing engine. It features an event-driven C++ engine and a ReactJS control interface (available as a browser plugin), which provides tasks monitoring and creation.

It provides both simple task execution and complex task chaining (workflow) using an easy to use drag & drop web interface. Workflow description includes output linking to input, conditions, loops... Queues management provides an easy way for task parallelization and resource control.

The network API provides an easy way, XML based, for synchronous or asynchronous workflow launching and control, allowing tasks to be launched from external applications or web pages. You can thus execute heavy tasks on a remote (dedicated) machine to save resources on your web frontends while providing live reporing of the treatment to you users.

evQueue is agentless (remote connection is made through SSH) and works on Linux environments. We provide debian packages. For other distributions you can compile from source or use our Docker images.

We now support clustering and high availability using any number of synchronized nodes. Schedules (like cron) can be launched on an elected node to guarantee high availability.

Workflows and tasks can be synchronized to a git repository to allow instant production deployment and history.

New version is shipped with a Websockets server, allowing fully event based frontend integration (default frontend is using ReactJS).

Latest Changes

2020-12-14 : evQueue 3.2

• Automatic tags
• evqueue_api and evqueue_wfmanager commands can now read config files (see manpages)
• evQueue-frontend-react 1.12
• Bugfixes

2020-11-10 : evQueue 3.1

• Bugfixes

2020-08-10 : evQueue 3.0

• Websockets support
• Rewritten frontend in React JS, fully event based. See what happens in real time !
• Firefox extension
• Chrome extension
• Handle multiple environments from a single interface (or extension)
• Redesigned workflow editor
• Custom filters: find workflows based on your own criterion
• Workflow tags for easy sort and find
• Better support for user access rights
• Many design improvements
• Docker compose can be used to easily setup a new environment
• Bug fixes

2019-01-04 : docker

• We now provide docker containers for evQueue
• evqueue-core
• evqueue-frontend-php

2018-11-12 : evQueue 2.1

• Added icons on top level menu
• Fix segfault of Core Engine
• Fix problems with empty looped jobs
• Fix bugs in workflow editor

2017-10-02 : evQueue 2.0

• High availability support in clustered environment.
• Rewritten Drag & Drop interface for workflow edition.
• Dynamic queue concurrency edition.
• Git support.
• Live tasks progression and output monitoring.
• Advanced statistics reports in web interface.
• Core engine now exposes a complete API.
• Added support for client identification on the core engine.
• Support for loops and conditions on inputs.
• Workflow debug mode (restart on error).
• New queue schedulers : prio (priority to oldest tasks) and fifo.
• Bugfixes.

2015-07-08 : evQueue 1.4

• Email notifications and support for plugins.
• Completely rebuilt web interface.
• Workflows import/export.
• The engine can now bind on UNIX socket for local communication.
• Bugfixes.

2015-04-01 : evQueue 1.3

• Added configuration options in the network section.
• Bugfixes.

2015-03-09 : evQueue 1.2

• Support of pipes between tasks. See ls | wc -l example.
• Added loops on tasks.
• Bugfixes.

License

evQueue is licensed under GPL v3.

The license is available on the GNU.org website.