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DWH Production Cluster work - Coggle Diagram

- - - - Data and Data source validation
        
        if not UAT then we can continue working on Prod
        
        Otherwise ??
        
        Application testing
        
        Through Reports
        
        Errors we came across
        
        Access issues?
        
        Non access related issues
        
        Need to validate this with Ehsan as these could be still access issues
        
        UAT or Not?
      - Boundary testing
        
        Query Engine
        
        RedShift
        
        Data flow is working
        
        Whether data is correct need to be validated
        
        Site Gaming data?
      - Pipeline validation
        
        Based on findings from above branch
        
        To be continued
        
        07/09/2020
      - Troubleshooting
        
        Query Engine Authentication issue
        
        Done
      - Connecting new Nifi and Production connectivity
      - Old cluster getting data from production
        
        Change Nifi config in new Production
        
        Get the pipeline working with above
        
        Do a validation of data
        
        Using the queries which have been used in production
      - Production move
        
        Linking Report service ( site data) to Query Engine
        
        Analyse whether old site data working with new Query engine
        
        Do we have to check whether site data is changed
        
        Report publishers will have to be changed
        
        Analyse what has to happen
        
        Code changes required
        
        Infrastructure changes need to be identified
        
        Anything need to happen related to EKS version upgrade?
        
        Reduction of Redshift 02 nodes already catered
  - - - Last time we have done it may be 2 month back
  - - - Might be an intermittent issue
      - Something might be blowing up Redshift table
      - Re starting Query engine might resolve this
        
        Did not resolve the issue