kocolosk commented on a change in pull request #438: Smoosh documentation
URL:
https://github.com/apache/couchdb-documentation/pull/438#discussion_r323847332
##########
File path: src/config/compaction.rst
##########
@@ -39,160 +39,129 @@ Database Compaction Options
[database_compaction]
checkpoint_after = 5242880
-.. _config/compactions:
+.. _config/view_compaction:
-Compaction Daemon Rules
+View Compaction Options
=======================
-.. config:section:: compactions :: Compaction Daemon Rules
-
- A list of rules to determine when to run automatic compaction. The
- :option:`daemons/compaction_daemon` compacts databases and their respective
- view groups when all the condition parameters are satisfied. Configuration
- can be per-database or global, and it has the following format::
-
- [compactions]
- database_name = [ {ParamName, ParamValue}, {ParamName, ParamValue},
... ]
- _default = [ {ParamName, ParamValue}, {ParamName, ParamValue}, ... ]
-
- For example::
-
- [compactions]
- _default = [{db_fragmentation, "70%"}, {view_fragmentation, "60%"},
{from, "23:00"}, {to, "04:00"}]
-
- - ``db_fragmentation``: If the ratio of legacy data, including metadata, to
- current data in the database file size is equal to or greater than this
- value, this condition is satisfied. The percentage is expressed as an
- integer percentage. This value is computed as:
-
- .. code-block:: none
-
- (sizes.file - sizes.active) / sizes.file * 100
-
- The sizes.active and sizes.file values can be obtained when
- querying :http:get:`/{db}`.
+.. config:section:: view_compaction :: View Compaction Options
- - ``view_fragmentation``: If the ratio of legacy data, including metadata,
- to current data in a view index file size is equal to or greater then
- this value, this database compaction condition is satisfied. The
- percentage is expressed as an integer percentage. This value is computed
- as:
+ .. config:option:: keyvalue_buffer_size :: Key-Values buffer size
- .. code-block:: none
+ Specifies maximum copy buffer size in bytes used during compaction::
- (sizes.file - sizes.active) / sizes.file * 100
+ [view_compaction]
+ keyvalue_buffer_size = 2097152
- The sizes.active and sizes.file values can be obtained when querying a
- :ref:`view group's information URI <api/ddoc/info>`.
+.. _config/compactions:
- - ``from`` and ``to``: The period for which a database (and its view group)
- compaction is allowed. The value for these parameters must obey the
- format:
+Compaction Daemon
+=================
- .. code-block:: none
+CouchDB ships with an automated, event-driven daemon that continuously
+re-prioritizes the database and secondary index files on each node and
+automatically compacts the files that will recover the most free space
according
+to the following parameters.
Review comment:
Can do
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