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.. _config-celery:
Install Celery
--------------
To improve |RCM| performance you should install Celery_ as it makes
asynchronous tasks work efficiently. If you
install Celery you also need multi-broker support. The recommended message
broker is rabbitmq_. |RCM| works in sync
mode, but running Celery_ will give you a large speed improvement when
managing many big repositories.
If you want to run |RCM| with Celery you need to run ``celeryd`` using the
``paster`` command and the message broker.
The ``paster`` command is already installed during |RCM| installation.
To install and configure Celery, use the following steps:
1. Install Celery and RabbitMQ, see the documentation on the Celery website for
`Celery installation`_ and `rabbitmq installation`_.
2. Enable Celery in the
:file:`home/{user}/.rccontrol/{instance-id}/rhodecode.ini` file.
3. Run the Celery daemon with the ``paster`` command,
using the following example
``.rccontrol/enterprise-1/profile/bin/paster celeryd .rccontrol/enterprise-1/rhodecode.ini``
.. code-block:: ini
# Set this section of the ini file to match your Celery installation
####################################
### CELERY CONFIG ####
####################################
## Set to true
use_celery = false
broker.host = localhost
broker.vhost = rabbitmqhost
broker.port = 5672
broker.user = rabbitmq
broker.password = qweqwe
celery.imports = rhodecode.lib.celerylib.tasks
celery.result.backend = amqp
celery.result.dburi = amqp://
celery.result.serialier = json
#celery.send.task.error.emails = true
#celery.amqp.task.result.expires = 18000
celeryd.concurrency = 2
#celeryd.log.file = celeryd.log
celeryd.log.level = debug
celeryd.max.tasks.per.child = 1
## tasks will never be sent to the queue, but executed locally instead.
celery.always.eager = false
.. code-block:: bash
# Once the above is configured and saved
# Run celery with the paster command and specify the ini file
.rccontrol/enterprise-1/profile/bin/paster celeryd .rccontrol/enterprise-1/rhodecode.ini
.. _python: http://www.python.org/
.. _mercurial: http://mercurial.selenic.com/
.. _celery: http://celeryproject.org/
.. _rabbitmq: http://www.rabbitmq.com/
.. _rabbitmq installation: http://docs.celeryproject.org/en/latest/getting-started/brokers/rabbitmq.html
.. _Celery installation: http://docs.celeryproject.org/en/latest/getting-started/introduction.html#bundles
.. _virtualenv: http://docs.python-guide.org/en/latest/dev/virtualenvs/