| .. 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. |
| |
| .. default-domain:: config |
| .. highlight:: ini |
| |
| ======================== |
| Miscellaneous Parameters |
| ======================== |
| |
| .. _config/attachments: |
| |
| Configuration of Attachment Storage |
| =================================== |
| |
| .. config:section:: attachments :: Configuration of Attachment Storage |
| |
| .. config:option:: compression_level |
| |
| Defines zlib compression level for the attachments from ``1`` (lowest, |
| fastest) to ``9`` (highest, slowest). A value of ``0`` disables |
| compression:: |
| |
| [attachments] |
| compression_level = 8 |
| |
| .. config:option:: compressible_types |
| |
| Since compression is ineffective for some types of files, it is |
| possible to let CouchDB compress only some types of attachments, |
| specified by their MIME type:: |
| |
| [attachments] |
| compressible_types = text/*, application/javascript, application/json, application/xml |
| |
| .. _config/stats: |
| |
| Statistic Calculation |
| ===================== |
| |
| .. config:section:: stats :: Statistic Calculation |
| |
| .. config:option:: interval |
| |
| Interval between gathering statistics in seconds:: |
| |
| [stats] |
| interval = 10 |
| |
| .. _config/uuids: |
| |
| UUIDs Configuration |
| =================== |
| |
| .. config:section:: uuids :: UUIDs Configuration |
| |
| .. config:option:: algorithm :: Generation Algorithm |
| |
| .. versionchanged:: 1.3 Added ``utc_id`` algorithm. |
| |
| CouchDB provides various algorithms to generate the UUID values that |
| are used for document `_id`'s by default:: |
| |
| [uuids] |
| algorithm = sequential |
| |
| Available algorithms: |
| |
| - ``random``: 128 bits of random awesome. All awesome, all the time: |
| |
| .. code-block:: javascript |
| |
| { |
| "uuids": [ |
| "5fcbbf2cb171b1d5c3bc6df3d4affb32", |
| "9115e0942372a87a977f1caf30b2ac29", |
| "3840b51b0b81b46cab99384d5cd106e3", |
| "b848dbdeb422164babf2705ac18173e1", |
| "b7a8566af7e0fc02404bb676b47c3bf7", |
| "a006879afdcae324d70e925c420c860d", |
| "5f7716ee487cc4083545d4ca02cd45d4", |
| "35fdd1c8346c22ccc43cc45cd632e6d6", |
| "97bbdb4a1c7166682dc026e1ac97a64c", |
| "eb242b506a6ae330bda6969bb2677079" |
| ] |
| } |
| |
| - ``sequential``: Monotonically increasing ids with random increments. |
| The first 26 hex characters are random, the last 6 increment in |
| random amounts until an overflow occurs. On overflow, the random |
| prefix is regenerated and the process starts over. |
| |
| .. code-block:: javascript |
| |
| { |
| "uuids": [ |
| "4e17c12963f4bee0e6ec90da54804894", |
| "4e17c12963f4bee0e6ec90da5480512f", |
| "4e17c12963f4bee0e6ec90da54805c25", |
| "4e17c12963f4bee0e6ec90da54806ba1", |
| "4e17c12963f4bee0e6ec90da548072b3", |
| "4e17c12963f4bee0e6ec90da54807609", |
| "4e17c12963f4bee0e6ec90da54807718", |
| "4e17c12963f4bee0e6ec90da54807754", |
| "4e17c12963f4bee0e6ec90da54807e5d", |
| "4e17c12963f4bee0e6ec90da54808d28" |
| ] |
| } |
| |
| - ``utc_random``: The time since Jan 1, 1970 UTC, in microseconds. The |
| first 14 characters are the time in hex. The last 18 are random. |
| |
| .. code-block:: javascript |
| |
| { |
| "uuids": [ |
| "04dd32b3af699659b6db9486a9c58c62", |
| "04dd32b3af69bb1c2ac7ebfee0a50d88", |
| "04dd32b3af69d8591b99a8e86a76e0fb", |
| "04dd32b3af69f4a18a76efd89867f4f4", |
| "04dd32b3af6a1f7925001274bbfde952", |
| "04dd32b3af6a3fe8ea9b120ed906a57f", |
| "04dd32b3af6a5b5c518809d3d4b76654", |
| "04dd32b3af6a78f6ab32f1e928593c73", |
| "04dd32b3af6a99916c665d6bbf857475", |
| "04dd32b3af6ab558dd3f2c0afacb7d66" |
| ] |
| } |
| |
| - ``utc_id``: The time since Jan 1, 1970 UTC, in microseconds, plus the |
| ``utc_id_suffix`` string. The first 14 characters are the time in |
| hex. The :option:`uuids/utc_id_suffix` string value is appended to |
| these. |
| |
| .. code-block:: javascript |
| |
| { |
| "uuids": [ |
| "04dd32bd5eabcc@mycouch", |
| "04dd32bd5eabee@mycouch", |
| "04dd32bd5eac05@mycouch", |
| "04dd32bd5eac28@mycouch", |
| "04dd32bd5eac43@mycouch", |
| "04dd32bd5eac58@mycouch", |
| "04dd32bd5eac6e@mycouch", |
| "04dd32bd5eac84@mycouch", |
| "04dd32bd5eac98@mycouch", |
| "04dd32bd5eacad@mycouch" |
| ] |
| } |
| |
| .. note:: |
| **Impact of UUID choices:** the choice of UUID has a significant |
| impact on the layout of the B-tree, prior to compaction. |
| |
| For example, using a sequential UUID algorithm while uploading a |
| large batch of documents will avoid the need to rewrite many |
| intermediate B-tree nodes. A random UUID algorithm may require |
| rewriting intermediate nodes on a regular basis, resulting in |
| significantly decreased throughput and wasted disk space space due to |
| the append-only B-tree design. |
| |
| It is generally recommended to set your own UUIDs, or use the |
| sequential algorithm unless you have a specific need and take into |
| account the likely need for compaction to re-balance the B-tree and |
| reclaim wasted space. |
| |
| .. config:option:: utc_id_suffix :: UTC ID Suffix |
| |
| .. versionadded:: 1.3 |
| |
| The ``utc_id_suffix`` value will be appended to UUIDs generated by the |
| ``utc_id`` algorithm. Replicating instances should have unique |
| ``utc_id_suffix`` values to ensure uniqueness of ``utc_id`` ids. :: |
| |
| [uuid] |
| utc_id_suffix = my-awesome-suffix |
| |
| .. config:option:: max_count :: Per-Request UUID Limit |
| |
| .. versionadded:: 1.5.1 |
| |
| No more than this number of UUIDs will be sent in a single request. If |
| more UUIDs are requested, an HTTP error response will be thrown. :: |
| |
| [uuid] |
| max_count = 1000 |
| |
| .. _config/vendor: |
| |
| Vendor information |
| ================== |
| |
| .. config:section:: vendor :: Vendor information |
| |
| .. versionadded:: 1.3 |
| |
| CouchDB distributors have the option of customizing CouchDB's welcome |
| message. This is returned when requesting ``GET /``. :: |
| |
| [vendor] |
| name = The Apache Software Foundation |
| version = 1.5.0 |
| |
| .. _config/csp: |
| |
| Content-Security-Policy |
| ======================= |
| |
| .. config:section:: csp :: Content-Security-Policy |
| |
| You can configure ``Content-Security-Policy`` header for Fauxton, attachments and |
| show/list functions separately. See `MDN Content-Security-Policy <https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Security-Policy>`_ |
| for more details on CSP. |
| |
| .. config:option:: utils_enable |
| |
| Enable the sending of the header ``Content-Security-Policy`` for ``/_utils``. |
| Defaults to ``true``:: |
| |
| [csp] |
| utils_enable = true |
| |
| .. config:option:: utils_header_value |
| |
| Specifies the exact header value to send. Defaults to:: |
| |
| [csp] |
| utils_header_value = default-src 'self'; img-src 'self'; font-src *; script-src 'self' 'unsafe-eval'; style-src 'self' 'unsafe-inline'; |
| |
| .. config:option:: attachments_enable |
| |
| Enable sending the ``Content-Security-Policy`` header for attachments:: |
| |
| [csp] |
| attachments_enable = true |
| |
| .. config:option:: attachments_header_value |
| |
| Specifies the exact header value to send. Defaults to:: |
| |
| [csp] |
| attachments_header_value = sandbox |
| |
| .. config:option:: showlist_enable |
| |
| Enable sending the ``Content-Security-Policy`` header for show and list functions:: |
| |
| [csp] |
| showlist_enable = true |
| |
| .. config:option:: showlist_header_value |
| |
| Specifies the exact header value to send. Defaults to:: |
| |
| [csp] |
| showlist_header_value = sandbox |
| |
| The pre 3.2.0 behaviour is still honoured, but we recommend updating |
| to the new format. |
| |
| Experimental support of CSP headers for ``/_utils`` (Fauxton). |
| |
| .. config:option:: enable |
| |
| Enable the sending of the Header ``Content-Security-Policy``:: |
| |
| [csp] |
| enable = true |
| |
| .. config:option:: header_value |
| |
| You can change the default value for the Header which is sent:: |
| |
| [csp] |
| header_value = default-src 'self'; img-src *; font-src *; |
| |
| .. _config/purge: |
| |
| Configuration of Database Purge |
| =============================== |
| |
| .. config:section:: purge :: Configuration of Database Purge |
| |
| .. config:option:: max_document_id_number |
| |
| .. versionadded:: 3.0 |
| |
| Sets the maximum number of documents allowed in a single purge request:: |
| |
| [purge] |
| max_document_id_number = 100 |
| |
| .. config:option:: max_revisions_number |
| |
| .. versionadded:: 3.0 |
| |
| Sets the maximum number of accumulated revisions allowed in a single purge |
| request:: |
| |
| [purge] |
| max_revisions_number = 1000 |
| |
| .. config:option:: index_lag_warn_seconds |
| |
| .. versionadded:: 3.0 |
| |
| Sets the allowed duration when index is not updated for local purge checkpoint |
| document. Default is 24 hours:: |
| |
| [purge] |
| index_lag_warn_seconds = 86400 |
| |
| .. _config/prometheus: |
| |
| Configuration of Prometheus Endpoint |
| ==================================== |
| |
| .. config:section:: prometheus :: Configuration of Prometheus Options |
| |
| .. config:option:: additional_port |
| |
| .. versionadded:: 3.2 |
| |
| Sets whether or not to create a separate, non-authenticated port (default is false):: |
| |
| [prometheus] |
| additional_port = true |
| |
| .. config:option:: bind_address |
| |
| .. versionadded:: 3.2 |
| |
| The IP address to bind:: |
| |
| [prometheus] |
| bind_address = 127.0.0.1 |
| |
| .. config:option:: port |
| |
| .. versionadded:: 3.2 |
| |
| The port on which clients can query prometheus endpoint data without authentication |
| |
| [prometheus] |
| port = 17986 |
