Trouble switches
Also written: SLOW_MS, FAIL_EVERY
Environment variables in the stock service that cause problems on purpose: `SLOW_MS` makes every call wait that many milliseconds, and `FAIL_EVERY` makes every Nth call fail with a 500.
Also written: SLOW_MS, FAIL_EVERY
Environment variables in the stock service that cause problems on purpose: `SLOW_MS` makes every call wait that many milliseconds, and `FAIL_EVERY` makes every Nth call fail with a 500.