.. Licensed under the Apache License, Version 2.0 (the "License"); you may not
.. use this file except in compliance with the License. You may obtain a copy of
.. the License at
..
..   http://www.apache.org/licenses/LICENSE-2.0
..
.. Unless required by applicable law or agreed to in writing, software
.. distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
.. WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
.. License for the specific language governing permissions and limitations under
.. the License.

.. highlight:: ini

=========================
CouchDB Internal Services
=========================

.. _config/daemons:

CouchDB Daemonized Mini Apps
============================

.. config:section:: daemons :: CouchDB Daemonized Mini Apps

    .. config:option:: auth_cache

        This daemon provides authentication caching to avoid repeated opening
        and closing of the `_users` database for each request requiring
        authentication::

            [daemons]
            auth_cache={couch_auth_cache, start_link, []}

    .. config:option:: compaction_daemon

        :ref:`Automatic compaction <config/compactions>` daemon::

            [daemons]
            compaction_daemon={couch_compaction_daemon, start_link, []}

    .. config:option:: external_manager

        `External` processes manager::

            [daemons]
            external_manager={couch_external_manager, start_link, []}

    .. config:option:: httpd

        Node-local HTTP server daemon (default port: `5986`)::

            [daemons]
            httpd={couch_httpd, start_link, []}

    .. config:option:: httpsd

        Provides :ref:`SSL support <config/ssl>`. The default SSL port CouchDB
        listens on is `6984`::

            [daemons]
            httpsd = {chttpd, start_link, [https]}

    .. config:option:: index_server

        The `couch_index` application is responsible for managing all of the
        different types of indexers. This manages the process handling for
        keeping track of the index state as well as managing the updater and
        compactor handling::

            [daemons]
            index_server={couch_index_server, start_link, []}

    .. config:option:: os_daemons

        :ref:`OS Daemons <config/os_daemons>` manager::

            [daemons]
            os_daemons={couch_os_daemons, start_link, []}

    .. config:option:: query_servers

        :ref:`Query servers <config/query_servers>` manager::

            [daemons]
            query_servers={couch_query_servers, start_link, []}

    .. config:option:: replicator_manager

        Replications manager::

            [daemons]
            replicator_manager={couch_replicator_manager, start_link, []}

    .. config:option:: stats_aggregator

        Runtime statistics aggregator::

            [daemons]
            stats_aggregator={couch_stats_aggregator, start, []}

    .. config:option:: stats_collector

        Runtime statistics collector::

            [daemons]
            stats_collector={couch_stats_collector, start, []}

    .. config:option:: uuids

        :ref:`UUIDs <config/uuids>` generator daemon::

            [daemons]
            uuids={couch_uuids, start, []}

    .. config:option:: vhosts

        :ref:`Virtual hosts <config/vhosts>` manager. Provides dynamic add of
        vhosts without restart, wildcards support and dynamic routing via
        pattern matching ::

            [daemons]
            vhosts={couch_httpd_vhost, start_link, []}