Showing posts with the label python programming

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8 Ways to Optimize AWS Glue Jobs in a Nutshell

  Improving the performance of AWS Glue jobs involves several strategies that target different aspects of the ETL (Extract, Transform, Load) process. Here are some key practices. 1. Optimize Job Scripts Partitioning : Ensure your data is properly partitioned. Partitioning divides your data into manageable chunks, allowing parallel processing and reducing the amount of data scanned. Filtering : Apply pushdown predicates to filter data early in the ETL process, reducing the amount of data processed downstream. Compression : Use compressed file formats (e.g., Parquet, ORC) for your data sources and sinks. These formats not only reduce storage costs but also improve I/O performance. Optimize Transformations : Minimize the number of transformations and actions in your script. Combine transformations where possible and use DataFrame APIs which are optimized for performance. 2. Use Appropriate Data Formats Parquet and ORC : These columnar formats are efficient for storage and querying, signif

How to Write Python 'Hello World' Program Quickly and Run it

The first Python program looks like the below.  I have explained the steps you need to write your first program in Python. My first program: You can write your program as module. if authorsFirstName == 'Irv':       teachingPython = True       print 'Pay attention to his wisdom' How to Run Your Python Program python Sample python program if authorsFirstName == 'Irv':      teachingPython = True    print 'Pay attention to his wisdom' The above if condition checks for first name.  In python '==', means equal to. It makes true to teachingPython .  You can start your python program quickly. Really useful for learning and to use it in projects.