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README.md

BATCH JOB QUEUE MANAGER (BATCHELOR)

Batchelor is an batch job queue manager supporting schdeule task for later execution, controlling them and retrieving result. Suitable applications can be scientific or heavy processing tasks (like media rendering).

QUEUES

The job queue can be accessed thru both a web interface and web services (i.e. SOAP or JSON API). The simpliest configuration uses an local queue, but the installation can be configured as a frontend for multiple remote queues which gives an distributed system with a common interface.

TASKS

Implement one or more classes that defines your application business logic and register them with the processor service. An incoming processing request is queued (scheduled for later execution).

A background process consumes queued tasks and uses the task registry to find a suitable class (among those registered by you) to process the data. The task class is called with input data and working directory.

END USERS

An end user can have multiple personal queues that they can switch between. Theres also support for authentication meant to give authorized users extra powers, for example relaxed upload limits.

INTEGRATE

See the file docs/GETTING-STARTED that contains information for integrators on how to configure batchelor to power your applications.

QUICK START

It's easiest is to use composer to initialize your project using batchelor:

composer init
composer require nowise/batchelor
./vendor/bin/batchelor.sh --location /myapp --setup

Start the scheduled job processor to execute submitted jobs. During setup or development of your own task its recommended to run in the foreground with debug enabled:

sudo -u apache ./utils/processor.sh -dk

Directory utils/boot contains script for starting the batch job processor at boot time. The scheduler can be monitored using:

sudo -u apache ./utils/scheduler.sh -lA

Remember to run these tools as the web server user or file permission errors will occure. If seeing errors, try admin/fix-permissions.sh first to correct wrong permissions on the data directory content.

FURTHER EXAMPLES

The system ChemGPS-NP Web was built on top of batchelor. Visit Batchelor project page for more online info.

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