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8 Ways to Optimize AWS Glue Jobs in a Nutshell

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  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

Unix Special Keys That Improve Productivity

Shared the UNIX terminal shortcut keys. These special keys you can use to stop the program processing, or resume it.


Top Special keys in Unix


An example of a UNIX special key and its use.

Special Keys in UNIX much useful to take action when something happens.

A scenario where you made some mistake in the input command and you need to stop the further process. Then you can use the CTRL+C command. It is equal to the DELETE command.


Unix Keyboard Shortcuts or Special Keys.



RETURN key 

The RETURN key signifies the end of a line of input. On any terminal, RETURN has a key of its own, or return may be typed by holding down the control key and typing a 'm'.


CTRL-m Key


Hint: Ctrl-m command is equal to RETURN key in Unix systems


DELETE Key

The DELETE key stops a program/command immediately, without waiting for it to finish. DELETE can be achieved equivalently with ctrl-c.

Hint: Ctrl-c Command you can use to interrupt the process.


CTRL-s Key

Ctrl-s pauses the output and the program is suspended until you start it again.

Hint: Ctrl-s Command to pause the process


CTRL-q Key

Ctrl-q resumes the program paused by ctrl-s.

Hint: Ctrl-q Command to resume the process


CTRL-g Key

Rings a bell on the terminal.


CTRL-h key

Can be used for backspace.


CTRL-i Key

Can be used for tab (eight spaces on the UNIX system).

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