Github user jihoonson commented on a diff in the pull request:
https://github.com/apache/tajo/pull/873#discussion_r46116563
--- Diff: tajo-docs/src/main/sphinx/configuration/storage-site-json.rst ---
@@ -0,0 +1,63 @@
+**************************
+The storage-site.json File
+**************************
+
+This file is for configuring :doc:`/table_management/tablespaces`.
+The syntax of ``storage-site.json`` is like this basically:
+
+.. code:: json
+
+ {
+ "spaces": {
+ <space config 1>, <space config 2>, ...
+ },
+ "storages": {
+ <storage config 1>, <storage config 2>, ...
+ }
+ }
+
+------
+Spaces
+------
+
+This is a section for registering tablespaces. Some space config example
is here:
+
+.. code:: json
+
+ "spaces": {
+ "jdbc_pgsql": {
+ "uri": "jdbc:postgresql://127.0.0.1:5740/origin",
+ "configs": {
+ "mapped_database":"tajo_pgsql_origin",
+ "connection_properties": {
+ "user":"tajouser",
+ "password":"123456"
+ }
+ }
+ },
+ ...
+ }
+
+* **space name** : Your own tablespace name which indicates a specific
tablespace. Alpha-numeric characters and underscore(_) are permitted.
+* **uri** : An URI address of a tablespace
+* **configs** : It is optional. You can specify it as JSON object to pass
to each tablespace handler.
+
+After you specify a tablespace, you can use it in `create table statement
<../sql_language/ddl.html#create-table>`_.
+
+--------
+Storages
+--------
+
+This is for registering storage format and custom storage handler class.
+Tajo already supports HDFS, HBase, PostgreSQL, Amazon S3, Openstack Swift,
etc, thus in usual cases using mentioned storages, you don't have to use
``storages`` configuration.
--- End diff --
I suggest ```you don't have to add any ``storages`` configuration.```
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at [email protected] or file a JIRA ticket
with INFRA.
---
