"Spark provides in-memory storage for intermediate computations, making it much faster than Hadoop MapReduce."

Learning about Apache Spark. Here's a quick timeline:

2003 Google: GFS
2004 Google: MapReduce
2006 Google: Bigtable
2006 Yahoo: Hadoop
2009 Facebook: Hive
2010 UC Berkeley: Spark

haaawk.github.io/2018/02/26/s...

"First byte starts with as many leading bits set to 1 as there are bytes following it in the representation. Then there is a 0 separating those leading ones and the actual data. All remaining bits together with the following bytes form the actual number"

"In [Cassandra] SSTables, a variant integer can be represented by 1-9 bytes and the length is encoded in the first byte."

I put together a timeline of the xz attack, dating back to 2021. Corrections or additions welcome here on Bluesky. research.swtch.com/xz-timeline

A walkthrough of the xz attack shell script.
An RC4 variant in Awk, what more could you want?
research.swtch.com/xz-script

hello! :)