Practice debugging production Spark jobs in the real Spark UI, without a production cluster. Reading about data skew, spill or executor OOMs is easy. Recognizing them in the Spark UI under pressure is ...

Colorwork design and knitting for electronic flatbed knitting machines. Draw a Fair Isle, jacquard, slip-stitch or tuck pattern in the browser, check that it will knit, then knit it straight from the ...