create hana-based analytics for data replication

Create HANA-Based Analytics for SAP Data Replication

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TABLE OF CONTENTS INTRODUCTION ............................................................................................................................................... 3

PREREQUISITES .............................................................................................................................................. 3 Technical Prerequisites .................................................................................................................................. 3 Content-related Prerequisites/Background Information ............................................................................. 3 When Is The Replication Log Registered?.................................................................................................... 3 Tables Relevant for Building Related HANA Views ......................................................................................... 3

GENERALLY REQUIRED CONFIGURATION STEPS .................................................................................... 5

CREATE THE RELATED CALCULATION VIEWS .......................................................................................... 5 CalculationView DataReplication Overview .................................................................................................. 6 Node Join Join_RplctnStatus_to_BusSyst ....................................................................................................... 6 Node Projection Projection_Status_Text .......................................................................................................... 7 Node Join Join_RplctnStatus_to_Text .............................................................................................................. 8 Node Projection ProjRplcntStatusWithBusSyst ................................................................................................. 8 Node Projection Projection_OTC_Text ............................................................................................................. 9 Node Join Join_RplctnStatus_to_OTC_Text ................................................................................................... 11 Node Aggregation ............................................................................................................................................ 12 Node Semantics .............................................................................................................................................. 13 CalculationView DataReplicationQuery ...................................................................................................... 14 Add Calculated Columns ................................................................................................................................. 14 Create xsodata service ................................................................................................................................. 14 Syntax: ............................................................................................................................................................. 14 Test the xsodata Service: ................................................................................................................................ 14 Result: .............................................................................................................................................................. 15


3

INTRODUCTION

Starting with SAP Master Data Governance 7.0 SP02 (“Feature Pack”) SAP HANA-Based analytical functions have been delivered to monitor and analyze processes using agreed Key Performance Indicators (KPIs). These KPIs are calculated based on information in change requests and information regarding the replication of data. This document explains how to build HANA-based calculation views that can be used to analyze whether data replication occurs in accordance with agreed KPIs. PREREQUISITES

Technical Prerequisites You have enabled he HANA-based analytics for SAP Master Data Governance process for your deployment scenario (Replication Scenario or Integrated Scenario. For more information, see refer to the central How-to-Guide available on SCN which can be accessed with the link in the appendix (Error! Reference source not found.). Content-Related Prerequisites/Background Information When Is the Replication Log Registered? Data replication from source systems (for example the MDG HUB) to target systems can be triggered using the following techniques:

Transaction DRFOUT

This transaction calls an outbound implementation which must be configured in Customizing. An

outbound implementation has to be implemented in the particular master data applications. Replication

can be triggered as initialization or for collected change pointers.

Membership API

The Membership API is called mostly from the MDG applications (for example, Business Partner,

Customer, or Material) when a change request is submitted.

Tables Relevant for Building Related HANA Views The following tables are the necessary ones for creating the related HANA-based views:

Table head Data Element Description

DRFD_OBJ_REP_STA

MANDT

DRF_GUID_16

MDG_BUSINESS_SYSTEM_ID

MDG_OBJECT_TYPE_CODE_BS

DRF_OBJECT_ID

DRF_MESSAGE_LINK

MDG_CREQUEST

DRF_OUTB_IMPL

MDG_COMM_CHANNEL

TIMESTAMP

DRF_REPSTAT

DRF_RUN_ID

BALLOGHNDL

DRF_REP_BLOCKED

DRF_MSG_GUID

Client

ID for DRF in the form of GUID Raw 16

Internal ID of business system

Business Object Type

Object ID

Message Number

Change Request

Outbound Implementation

Communication Channel

UTC Time Stamp in Short Form (YYYYMMDDhhmmss)

Replication Status

Run ID

Application Log: Log Handle

Replication Blocked

Message Guid

MDG_BUS_SYS_TECH

MANDT

BUSINESS_SYSTEM

BUS_SYS_ID

LOGSYS

RFCDEST

FILE_PATH

DEF_STORAGE_SERV

UNICODE_SYSTEM

Client

Business System

Internal ID of Business System

Logical System

Logical Destination (Specified in Function Call)

Logical File Path

Download to Presentation Server


4

UNICODE_CODE_PAG

DISABLED

System Supports Unicode

Unicode Code Page

Business System Temporarily Disabled for Replication

MDGI_OTC_BS OBJECT_TYPE_CODE

CONSTANT_NAME

IS_PROJECTION

MAIN_OBJECT

OITC_FOR_REPL


Constant Name of Object Type

Object is a Projection of Another Object

Main Object Type for a Projection Object Type

Object ID Type for Key Structure Access

MDG_BUS_ScYS_ATTR MANDT

BUSINESS_SYSTEM

BUSINESS_OBJECT

COMM_CHANNEL

OBJ_CORRELATION

UPD_KM

PERSISTENCE

TIME_DEPENDENCY

Client

Business System


Communication Channel

Key Harmonization

Update Key Mapping within ALE Audit Inbound Processing

Storage Location for Data Replication

Target System Supports Time Dependency


5

GENERALLY REQUIRED CONFIGURATION STEPS

Before executing the mentioned steps below, adhere to the technical as well as content-related prerequisites described in the previous chapter. To create the HANA-Based query views according to the described scenario, the following steps are required: CREATE THE RELATED CALCULATION VIEWS

1. Logon to SAP HANA Studio 2. Open the HANA Development Perspective and go to the Project Explorer 3. Create a project and assign folders for DataReplication views and a subfolder odata to be used for the

odata service.

Summary:

1. Create the calculation view DataReplication. 2. Create the calculation view DataReplicationQuery. 3. Create the odata service.

Select the Cross Client as default client and select the default schema from which you want to use the tables.


6

CalculationView DataReplication Overview This picture shows the Joins and Projections of the calculation view DataReplication. The creation of this view is described below. This calculation view does not have a Data Category and has no privileges. Start with the Join Join_RplctnStatus_to_BusSyst

Node Join Join_RplctnStatus_to_BusSyst This node joins the logfile for data replication with the related business system (tables DRFD_OBJ_REP_STA with MDG_BUS_SYS_TECH).


7

Node Projection Projection_Status_Text Create a projection with table D07T, set filter on DOMANE = ‘DRF_REPSTAT’.


8

Node Join Join_RplctnStatus_to_Text Create a text join with the join Join_RplctnStatus_to_BusSyst and Projection_Status_Text.

Node Projection ProjRplcntStatusWithBusSyst Create a projection on the join Join_Rplctn_to_Text.


9

Node Projection Projection_OTC_Text Create a projection on table MDGI_OTC_T_BS.


10


11

Node Join Join_RplctnStatus_to_OTC_Text Create a text join with ProjRplcntStatusWithBusSyst and Projection_OTC_Text.


12

Node Aggregation


13

Node Semantics This calculation view does not have a data category and has no privileges.


14

CalculationView DataReplicationQuery You use a query view as a basis for creating KPIs. The data category is CUBE and the privilege is Analytic Privileges, default client is Cross Client. In this view, measures are calculated.

Add Calculated Columns By selecting the aggregation node, you will see the calculated columns on the right hand side which show the available counters and measures.

Name Data Type Exception Aggregation Columns

TotalReplication Integer COUNT_DISTINCT RunId

IsFailed VARCHAR (1)

Formula

if("StatusName"='SE' OR

"StatusName"='PE','X',' ')

Create xsodata service In the HANA DB studio, create a project (for example, tmp.ORTHG) with a folder for the calculation view for example DataReplicationQuery and a subfolder odata for the xsodata file. Syntax: service {"tmp.ORTHG.DataReplication::DataReplicationQuery" as "DataReplicationQuery" keys generate local "GenID" aggregates always; } annotations { enable OData4SAP; } Test the xsodata service: Right-click on the .xsodata file -> runs as XS Service.


15

Result: Browser starts with a valid XML document.

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create hana-based analytics for data replication

Documents

node join join

node projection projection

node aggregation

node semantics

related hana views

related calculation

replication log

technical prerequisites