One Line Command to Install PySpark Environment

Spark 3.0.0 released for a while, in TPC-DS 30TB benchmark, Spark 3.0 is roughly two times faster than Spark 2.4 and add Java 11 support. with the anaconda help, the PySpark environment installation becomes very easy, just one line command is enought. conda install -c conda-forge openjdk pyspark -y it …

My Website and My Son have the same birthday

Sept 17,2006, after many years free websites, I paid my first shared hosting service, Dreamhost. Then I installed WordPress, began writing blog, most of them about PDF and software development(also about PDF). One interesting thing is my son’s birthday is also Sept 17, just younger 1 year than my website. …

pdfcrack is cross platform now

Bases on PDFCrack 0.19, I add Windows support, and tested on Windows 10, Ubuntu 20.04 and macOS 10.15.5 (19F101), all succeed. please …