Glue incremental load

0

I am loading the data from Amazon RDS(mysql database) to Redshift using AWS Glue ETL and data catolgue. But I can't figure out how to do incremental loading(upsert)? Is there a way to create a filter/parameter on date while reading from source database to load only yesterday's data without using bookmarks?

2 Answers
0

Using Bookmarks is recommended way when using Glue, however nothing stops you from passing a parameter to glue script [https://docs.aws.amazon.com/glue/latest/dg/aws-glue-api-crawler-pyspark-extensions-get-resolved-options.html] and then generaly the query dynamically based on that parameter if you want.

The other question is why you wanted to use Glue and not Redshift federated query instead which might be an easier option?

Alex_T
answered 2 months ago
  • Cause i use Redshift Serverless which still have no Query schedule , so even if i used federated query to run MV i will have to schedule using step function to be able to refresh and monitor extraction workflow.

    the issue of using the bookmark that i need only the data that is loaded yesterday and by default running the jobs after 12 AM will cause some unneeded data to be loaded by using bookmark which might affect my extraction logic

0

One option is to use DMS to incrementally load Redshift using MySQL as a source. Here's a whitepaper on the topic: https://docs.aws.amazon.com/whitepapers/latest/optimizing-dms-with-amazon-redshift/optimizing-dms-with-amazon-redshift.html

profile picture
Rajiv_G
answered 2 months ago

You are not logged in. Log in to post an answer.

A good answer clearly answers the question and provides constructive feedback and encourages professional growth in the question asker.

Guidelines for Answering Questions