Showing posts with the label ps Command

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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 Understand the 'ps' Command output in Linux

You can get process details by using the ps command. Those are number of processes running in a current Session, and other parameters about the process.   Here is all about how to use ps command in Linux. How to use ps command Here's an example that is how it appears when you issue the 'ps' command. PID (Process Id) - It is the process identification number. TTY(Terminal name) - associated with this process TIME(Time) - the format is hh: mm: ss (Hours, Minutes, and Seconds). Cumulated time of that particular process. CMD (Executable Command name). You May Also Like: PS Command Options in Linux How to understand slave/master terminal Here is all about Slave and Master terminal. The pts/0 is the slave terminal. The pts means pseudo terminal slave. Raise your knowledge by bringing in these quick definitions. LINUX - DIFFERENCE BETWEEN TTY AND PTS. In reality, the terminals are two types. One is ptmx (Master) and pts (Slave). The master terminal holds the details of slaves. Tho