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Upgrading #MySQL from one major version to another one is tough. Though we decided to migrate to 5.7 at first, #FB decided to migrate staright to 8.x https://engineering.fb.com/2021/07/22/data-infrastructure/mysql/
There is a chronic shortage of talented engineers in Japan and it shows as more and more companies are having large system failures or security breaches. #Mizuho bank, one of the largest banks in #Japan suffers 5th outage in this year.
https://english.kyodonews.net/news/2021/08/ea4d52f95f1c-breaking-news-japans-mizuho-bank-reports-system-failure-at-branch-counters.html
Your customers are as satisfied as good is your #SRE team (or whether it even exists). #Uber outlines some good incident management practices when building a successful on call culture.
https://eng.uber.com/eats-safety-team-on-call-overview/
Designing an efficient #Redis data model while keeping performance in mind can be very tricky. A good example about how to approach the problem.
https://redislabs.com/blog/real-time-trading-platform-with-redis-enterprise/
When deploying out from your local environment, there might be fundamental differences between your local environment and your target/cloud infrastructure. Unit tests and CI may suddenly break if your tests are flaky.
https://eng.uber.com/handling-flaky-tests-java/