Add des rst
Issue-ID: DCAEGEN2-2507
Signed-off-by: Kai Lu <lukai@chinamobile.com>
Change-Id: I63161a3d2f7364c3689b93de25c4251c6e06d7c5
diff --git a/docs/sections/services/datalake-handler/overview.rst b/docs/sections/services/datalake-handler/overview.rst
index 09e41a5..101cb46 100644
--- a/docs/sections/services/datalake-handler/overview.rst
+++ b/docs/sections/services/datalake-handler/overview.rst
@@ -39,7 +39,7 @@
Description
~~~~~~~~~~~
-DataLate Handler's main function is to monitor and persist data flow through DMaaP. The databases are outside of ONAP scope,
+DataLake Handler's main function is to monitor and persist data flow through DMaaP and provide a query API for other component or external services. The databases are outside of ONAP scope,
since the data is expected to be huge, and a database may be a complicated cluster consisting of thousand of nodes.
Admin UI
@@ -67,8 +67,18 @@
- Support data processing features. Before persisting data, data can be massaged in Feeder. Currently two features are implemented: Correlate Cleared Message (in org.onap.datalake.feeder.service.db.ElasticsearchService) and Flatten JSON Array (org.onap.datalake.feeder.service.StoreService).
- Connection to Kafka and DBs are secured
+Des
+~~~
+Architecture
+.. image:: ./des-arch.PNG
+
+Features
+
+ - Provide a data query API for other components to consume.
+ - Integrate with Presto to do data query via sql template.
Links
~~~~~
- DataLake Development Environment Setup https://wiki.onap.org/display/DW/DataLake+Development+Environment+Setup
+ - Des description and deployment steps: https://wiki.onap.org/display/DW/DES
- Source Code https://gerrit.onap.org/r/gitweb?p=dcaegen2/services.git;a=tree;f=components/datalake-handler;hb=HEAD