notes/pyspark.md


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# pyspark

```
yarn node -list -all
```

* https://stackoverflow.com/questions/58700384/how-to-fix-typeerror-an-integer-is-required-got-type-bytes-error-when-tryin
* https://query.wikidata.org/#SELECT%20%28COUNT%28%2a%29%20AS%20%3Fcount%29%0AWHERE%20%7B%0A%20%20%3Fx%20wdt%3AP2860%20%24y%20.%0A%7D%0A