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DB cleanup recepie #84

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goldbergyoni opened this issue Apr 4, 2021 · 0 comments
Open

DB cleanup recepie #84

goldbergyoni opened this issue Apr 4, 2021 · 0 comments
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@DanielGluskin

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@goldbergyoni
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goldbergyoni commented Apr 4, 2021 •
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The setup

  • Dedicated folder or even repo
  • Super simple example app in one file - Add & delete order. One column should be unique
  • Single test: Delete order, ensure it was deleted. X100 times (run in a loop to test.each)
  • 20 tables with relationship

The options

  • Option1: Delete all tables on beforeEach
  • Option2: Delete on global teardown occasionally (once a day or with random)
  • Option3: Transactions

Checks and conclusions

  • The performance of each option under 100 tests
  • When cleaning, what is faster: Delete or Truncate
  • The performance of a single process (--run-in-band) vs max-1 processes
  • The RAM impact of having 6 Postgres vs only 1
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