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RED Enablement Packs : WhereScape Enablement Pack for Azure Synapse- RED10
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This is a guide to installing the WhereScape Enablement Pack for Azure Synapse for WhereScape RED
Table of Contents
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Before you begin the following prerequisites must be met:
- Create Database and ODBC DSN :
- Supported* version of PostgreSQL (PostgreSQL 12 or higher)
- A database to house the RED Metadata Repository.
- A database for the Range Table DB (Optional)
- A database to house scheduler (Optional)
- Supported* version of PostgreSQL (PostgreSQL 12 or higher)
- Software Installations
- WhereScape RED10 with valid license key entered and EULA accepted
- WhereScape Enablement Pack for target database version RED10
- Windows Powershell (64 bit) version 4 or higher
- To check Windows Powershell Version:
- Run below command in Windows Powershell
- To check Windows Powershell Version:
Get-Host|Select-Object Version
- Run below command in Command Prompt
powershell $psversiontable
- Run the following command using PowerShell
- The security protocol TLS 1.0 and 1.1 used by PowerShell to communicate with PowerShell gallery has deprecated and TLS 1.2 has been made mandatory
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\[Net.ServicePointManager\]::SecurityProtocol = \[Net.ServicePointManager\]::SecurityProtocol -bor \[Net.SecurityProtocolType\]::Tls12
Register-PSRepository -Default -Verbose
Set-PSRepository -Name "PSGallery" -InstallationPolicy Trusted |
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Install-Module -Name PoshProgressBar -SkipPublisherCheck -Force
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Prerequisites
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For Target Database Azure Synapse
Before you begin the following prerequisites must be met:
- Create Database and ODBC
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- DSN:
- Azure Synapse
- At least one schema available to use as a RED Data Warehouse Target
- Python 3.8 or higher
- Azure Synapse
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- Select Add Python 3.8 to PATH
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- from installation Window
- Pip Manager Install with command :
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python -m pip install --upgrade pip
Enablement Pack Setup Scripts
The Enablement Pack Install process is entirely driven by scripts. The below table outlines these scripts, their purpose and if "Run as Administrator" is required.
1 | Setup_Enablement_Pack.ps1 | Setup and configure a RED Metadata Repository for target database | Yes | New and Existing installations |
2 | install_WslPython_Modules.bat | Installs or updates WslPython Modules and required Python libraries on this machine. | Yes | New and Existing installations |
3 | import_python_templates.ps1 | Imports or updates the Python Templates to a RED Metadata Repository. Also includes any Script Imports | No* | Existing installations |
4 | set_default_templates.ps1 | Applies the RED Connection defaults in a RED Metadata Repository for Python or Powershell templates. | No* | Existing installations |
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Step-By-Step Guide
Setup and configure RED Metadata Repository
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Connection UI Config | Load UI Config |
Amazon S3 | Load From Amazon S3 |
Azure Data Lake Storage Gen2 | Load From Azure Data Lake Storage Gen2 |
Google Cloud | Load From Google Cloud |
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Install or Update WhereScape Python Templates (For Existing Installations)
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Set Connection defaults for a Template Set (For Existing Installations)
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Post Install Steps - Optional
If you used the
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script Setup_Enablement_Pack.ps1
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then the following optional post-install steps are available
Configure Connections
There
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are some connections added that will optionally require your attention:
- Connection: 'Database Source System' - this connection was
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- set up as an example source connection,
- open
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- its properties and set it up for a source DB in your environment
- or you can remove it if not required.
- Connection: 'Azure Synapse'- this connection was
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- set as per parameters provided in script 1
- open
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- its properties and check the extended properties tab, set it up for Blob Storage Account, Blob Storage Access Key, Blob Storage Container, Blob Endpoint, Blob Storage Data Source, and Azure SQL DW Connection String
Enable Script Launcher Toolbar
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Several stand-alone scripts
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provide some features such as "Ranged Loading", these scripts have been added to the Script Launcher menu but you will need to enable the menu toolbar item to see them.
To enable the Script Launcher menu in RED
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, select View>Toolbars>Script Launcher
Source Enablement Pack Support
Source Pack Name | Supported By Azure Synapse | Supported Features | Prerequisites |
Cloud File Parser
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| Bulk load | Refer to Windows Parser Guide |
Windows Parser |
| Load Template, Source Properties will have the option to select parser type to load the files. | Refer to Windows Parser Guide |
Troubleshooting and Tips
Run As Administrator
Press the Windows Key on your keyboard and start typing cmd.exe, when the cmd.exe icon shows up in the search list right click it to bring up the context menu, select "Run As Administrator"
Now you have an admin prompt navigate to to the folder where you have unpacked your WhereScape Red Enablement Pack to using the 'cd' command:
C:\Windows\system32> cd <full path to the unpacked folder>
Run batch (.bat) scripts from the administrator prompt by simply typing the name at the prompt and hit enter, for example:
C:\temp\EnablementPack>install_WslPowershell_Modules.bat
Run Powershell (.ps1) scripts from the administrator prompt by typing the Powershell run script command, for example:
C:\temp\EnablementPack>Powershell -ExecutionPolicy Bypass -File .\Setup_Enablement_Pack.ps1
Notes: In the event you can not bypass the Powershell execution policy due to group policies you can instead try "-ExecutionPolicy RemoteSigned" which should allow unsigned local scripts.
Windows Powershell Script Execution
On some systems Windows Powershell script execution is disabled by default. There are a number of workarounds for this which can be found by searching the term "Powershell Execution Policy".
Here is the most common workaround which WhereScape suggests, which does not permanently change the execution rights:
Start a Windows CMD prompt as Administrator, change directory to your script directory and run the WhereScape Powershell scripts with this command:
- cmd:>Powershell -ExecutionPolicy Bypass -File .\<script_file_name.ps1>
Restarting failed scripts
Some of the setup scripts will track each step and output the step number when there is a failure. To restart from the failed step (or to skip the step) provide the parameter "-startAtStep <step number>" to the script.
Example:
Powershell -ExecutionPolicy Bypass -File .\<script_file_name.ps1> -startAtStep 123
Tip: to avoid having to provide all the parameters again you can copy the full command line with parameters from the first "INFO" message from the beginning of the console output.
Python requirements for offline install
Additionally to the base Python installation being required, the WhereScape Python Template set also requires certain additional Python libraries. The install scripts uses the PIP (package manager) to download these libraries, however for offline installs you will need to install the required libraries yourself.
Required Python libraries/add-ons:
- pywin32-ctypes
- python-tds
- pywin32
- glob2
- gzip-reader
- regex
- pyodbc
If a valid RED installation can not be found
If you have RED 10.x or higher installed but the script (Setup_Enablement_Pack.ps1) fails to find it on you system then you are most likely running PowerShell (x86) version which does not show installed 64 bit apps by default. Please open a 64 bit version of Powershell instead and re-run the script.
AWS PrivateLink Documentation
Please refer to the link below for the configuration of AWS PrivateLink for Snowflake:
{+}https://community.snowflake.com/s/article/Setup-On-Premise-DNS-to-work-in-conjunction-with-AWS-PrivateLink+
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