hadoop integration with sap hana

SAP HANA Smart Data Access using Hadoop/Hive

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SAP HANA Smart Data Access using Hadoop/Hive =================================================================================================

By

Debajit Banerjee

Table of Contents

Introduction about SAP HANA Smart Data Access………………………………………………………………. Page 02

I.HDP 1.3 for Windows Installation Pre-requisite……………………………………………………………….. Page 03

II.HDP 1.3 for Windows (Hortonworks Data Platform) Standalone Installation………………….. Page 13

III.Validation of HDP 1.3 for Windows - Standalone Installation…………………………………………. Page 16

IV.Data Load in Hadoop System : eBook Upload…………………………………………………………………. Page 26

V.Unstructured Data Transformation into Table/View in Hadoop System…………………………… Page 35

VI.ODBC Driver Installation & Configuration on SAP HANA Server………………………………………. Page 40

VII.Smart Data Access (Hadoop Data) in SAP HANA…………………………………………………………….. Page 47

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SAP HANA Smart Data Access

Using the feature of SAP HANA Smart Data Access, it is possible to access remote data, without having to replicate the

data to the SAP HANA database beforehand. The following are supported as sources(till 2013):

Teradata database,

SAP Sybase ASE,

SAP Sybase IQ,

Intel Distribution for Apache Hadoop,

SAP HANA.

SAP HANA handles the data like local tables on the database. Automatic data type conversion makes it possible to map

data types from databases connected via SAP HANA Smart Data Access to SAP HANA data types.

Steps/Procedure :

Hadoop Installation

Data Load in Hadoop system

Activities on Unstructured Data in Hadoop system

ODBC Driver installation & configuration on HANA Server for Hadoop system data access

Smart Data Access in SAP HANA (through SAP HANA Studio), using HADOOP as a remote data source

Assumption – SAP HANA System is already up & running.

Scenario / Lab Setup Details :

1) Hadoop Installation Pre-requisite : HDP 1.3 for Windows(Hortonworks Data Platform) - Standalone

2) Hadoop Installation : HDP 1.3 for Windows(Hortonworks Data Platform) - Standalone – on Dell Laptop, OS Win7

64bit – 8GB)

3) SAP HANA Sever Installation(Lab Server running on VM – 24GB Standalone HANA 1.0 SPS 70) – SLES 11 SP1

4) Validation of Hadoop Installation

5) Data Load in Hadoop system : eBook Upload

6) Unstructured Data transformation into table/views, so that HANA Server can understand Hadoop data.

7) ODBC Driver installation & configuration on HANA Server

8) Smart Data Access in SAP HANA (through SAP HANA Studio), using Hadoop as a remote data source

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I. HDP 1.3 for Windows Installation Pre-requisite

- On HANA Server -Simba : Apache Hive ODBC Driver – Linux 64bit

- On Hadoop System - Microsoft Visual C++ 2010 Redistributable Package (64bit)

- On Hadoop System - Microsoft .NET Framework 4.0

- On Hadoop System - JAVA JDK 1.6/1.7 and PATH, JAVA_HOME environment variables setup

- On Hadoop System - Python 2.7 and PATH environment variable setup

In Linux

In Windows

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MS Visual C++ 2010

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MS .NET Framework 4

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Cancelling it as it gives the option of Repair !!

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Oracle JDK

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i. Open the Control Panel -> System pane and click on Advanced system

settings.

ii. Click on the Advanced tab.

iii. Click the Environment Variables button.

iv. Under System variables, click New.

v. Enter the Variable Name as JAVA_HOME.

vi. Enter the Variable Value, as the installation path for the Java Development Kit.

For example, if your JDK is installed at C:\Java\jdk1.6.0_31, then you must

provide this path to the Variable Value.

vii. Click OK. viii. Click OK to close the Environment Variables dialog box.

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Python

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Like Oracle JDK above, C:\Python27 also to be set in PATH variable.

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II. HDP 1.3 for Windows (Hortonworks Data Platform) Standalone Installation

Now accordingly update the C:\hdp-1.3.0.0-GA\clusterproperties.txt as per following:

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In Command Window(Admin Privilege):

msiexec /i "C:\hdp-1.3.0.0-GA\hdp-1.3.0.0.winpkg.msi" /lv "C:\DEBAJIT\HD\hdp13\hdp.log" HDP_LAYOUT="C:\hdp-

1.3.0.0-GA\clusterproperties.txt" HDP_DIR="C:\hdp\hadoop" DESTROY_DATA="Yes"

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There are 3 shortcuts created in desktop area.

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III. Validation of HDP 1.3 for Windows - Standalone Installation

Now we have to start Hadoop.

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Services were not started due to 0 bytes in .xml files(master & regionserver)

Also rest/thrift/thrift2.xml are also of zero bytes.

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1) Navigate to the hbase install directory: C:\hdp\hadoop\hbase-0.94.6.1.3.0.0-0380\bin 2) Open the hbase.cmd in a text editor 3) Look for the line that says: set PATH=%PATH%;%HADOOP_HOME%\bin 4) Delete it or comment it out with a @rem

Now Open a command prompt and navigate to hbase install: C:\hdp\hadoop\hbase-0.94.6.1.3.0.0-0380\bin Rebuild the .xml files: hbase.cmd --service master start > master.xml hbase.cmd --service regionserver start > regionserver.xml hbase.cmd --service rest > rest.xml hbase.cmd --service thrift > thrift.xml hbase.cmd --service thrift2 > thrift2.xml

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Now all the above .xml files having contents.

Stop & Start Hadoop – now it is PERFECT. No more failed services.

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Hadoop Smoketest

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IV. Data Load in Hadoop System : eBook Upload

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Now to check whether Hadoop can read the same or not…

It can…perfect !!

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After refresh

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From the Namenode server, click on “Browse the filesystem”

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Click on “user”

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Click on .txt file…one can see the book

If one can click on .out file, then one can see the part file

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V. Unstructured Data Transformation into Table/View in Hadoop System

Now we have to convert those files to be readable table format for HANA. For that we will use HIVE.

Created a table called “debajit_wc” for wordcount part file. But right now, it is empty.

Now loading Data.

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Configuration change required in hive-site.xml file.

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Just changed from http to thrift – servermode.

And then restart Hadoop.

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Now we can test whether SAP HANA can connect to Hadoop….

Download the license file from email and deployed. Problem solved.

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VI. ODBC Driver Installation & Configuration on SAP HANA Server

Renaming done at WinSCP level….

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Stopping HANA System

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SIMBA Driver

Changed items are as follows:

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UNIXODBC

We have to upgrade it because of compatibility issue with Simba.

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ODBC.INI - DSN purpose

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Now added odbc information into customer.sh

So, now the connection is working between HANA Server and Hadoop system from OS level.

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VII. Smart Data Access (Hadoop Data) in SAP HANA

SAP HANA Studio

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So, now the connection is working between HANA Server and Hadoop system from SAP HANA Studio.

Creating a schema in HP7

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One can do Query and Connection Monitoring when click on “Smart Data Access” under “Provisioning”.

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That’s all.

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