wallabag/docs/en/developer/asynchronous.rst
2016-12-15 22:23:28 +01:00

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Asynchronous tasks
==================
In order to launch asynchronous tasks (useful for huge imports for example), we can use RabbitMQ or Redis.
Install RabbitMQ for asynchronous tasks
---------------------------------------
Requirements
^^^^^^^^^^^^
You need to have RabbitMQ installed on your server.
Installation
^^^^^^^^^^^^
.. code:: bash
wget https://www.rabbitmq.com/rabbitmq-signing-key-public.asc
apt-key add rabbitmq-signing-key-public.asc
apt-get update
apt-get install rabbitmq-server
Configuration and launch
^^^^^^^^^^^^^^^^^^^^^^^^
.. code:: bash
rabbitmq-plugins enable rabbitmq_management # (useful to have a web interface, available at http://localhost:15672/ (guest/guest)
rabbitmq-server -detached
Stop RabbitMQ
^^^^^^^^^^^^^
.. code:: bash
rabbitmqctl stop
Configure RabbitMQ in wallabag
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Edit your ``app/config/parameters.yml`` file to edit RabbitMQ configuration. The default one should be ok:
.. code:: yaml
rabbitmq_host: localhost
rabbitmq_port: 5672
rabbitmq_user: guest
rabbitmq_password: guest
rabbitmq_prefetch_count: 10 # read http://www.rabbitmq.com/consumer-prefetch.html
Enable RabbitMQ in wallabag
^^^^^^^^^^^^^^^^^^^^^^^^^^^
In internal settings, in the **Import** section, enable RabbitMQ (with the value 1).
Launch RabbitMQ consumer
^^^^^^^^^^^^^^^^^^^^^^^^
Depending on which service you want to import from you need to enable one (or many if you want to support many) cron job:
.. code:: bash
# for Pocket import
bin/console rabbitmq:consumer -e=prod import_pocket -w
# for Readability import
bin/console rabbitmq:consumer -e=prod import_readability -w
# for Instapaper import
bin/console rabbitmq:consumer -e=prod import_instapaper -w
# for wallabag v1 import
bin/console rabbitmq:consumer -e=prod import_wallabag_v1 -w
# for wallabag v2 import
bin/console rabbitmq:consumer -e=prod import_wallabag_v2 -w
# for Firefox import
bin/console rabbitmq:consumer -e=prod import_firefox -w
# for Chrome import
bin/console rabbitmq:consumer -e=prod import_chrome -w
Install Redis for asynchronous tasks
------------------------------------
In order to launch asynchronous tasks (useful for huge imports for example), we can use Redis.
Requirements
^^^^^^^^^^^^
You need to have Redis installed on your server.
Installation
^^^^^^^^^^^^
.. code:: bash
apt-get install redis-server
Launch
^^^^^^
The server might be already running after installing, if not you can launch it using:
.. code:: bash
redis-server
Configure Redis in wallabag
^^^^^^^^^^^^^^^^^^^^^^^^^^^
Edit your ``app/config/parameters.yml`` file to edit Redis configuration. The default one should be ok:
.. code:: yaml
redis_host: localhost
redis_port: 6379
Enable Redis in wallabag
^^^^^^^^^^^^^^^^^^^^^^^^
In internal settings, in the **Import** section, enable Redis (with the value 1).
Launch Redis consumer
^^^^^^^^^^^^^^^^^^^^^
Depending on which service you want to import from you need to enable one (or many if you want to support many) cron job:
.. code:: bash
# for Pocket import
bin/console wallabag:import:redis-worker -e=prod pocket -vv >> /path/to/wallabag/var/logs/redis-pocket.log
# for Readability import
bin/console wallabag:import:redis-worker -e=prod readability -vv >> /path/to/wallabag/var/logs/redis-readability.log
# for Instapaper import
bin/console wallabag:import:redis-worker -e=prod instapaper -vv >> /path/to/wallabag/var/logs/redis-instapaper.log
# for wallabag v1 import
bin/console wallabag:import:redis-worker -e=prod wallabag_v1 -vv >> /path/to/wallabag/var/logs/redis-wallabag_v1.log
# for wallabag v2 import
bin/console wallabag:import:redis-worker -e=prod wallabag_v2 -vv >> /path/to/wallabag/var/logs/redis-wallabag_v2.log
# for Firefox import
bin/console wallabag:import:redis-worker -e=prod firefox -vv >> /path/to/wallabag/var/logs/redis-firefox.log
# for Chrome import
bin/console wallabag:import:redis-worker -e=prod chrome -vv >> /path/to/wallabag/var/logs/redis-chrome.log
If you want to launch the import only for some messages and not all, you can specify this number (here 12) and the worker will stop right after the 12th message :
.. code:: bash
bin/console wallabag:import:redis-worker -e=prod pocket -vv --maxIterations=12