Category Archives: API Programming

WordPress Community Scheduler Interval Bug

I opened WordPress Bug 42866: “WordPress Community Scheduler Interval Bug.” I found that when writing the RackPing Monitoring widget, scheduled tasks frequently run up to 45 seconds earlier than the 15 minute interval specified. This may have wide and serious … Continue reading

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Redis and CentOS 7

Redis is a feature-packed cache that’s easy to install and work with. Here’s some notes on installing and using Redis with CentOS 7. Install available redis package from your available yum repos: # yum install redis # systemctl enable redis … Continue reading

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Truly Seamless Reloads with HAProxy – No More Hacks!

Landmark “corporate” technical blog post from Willy Tarreau titled “Truly Seamless Reloads with HAProxy – No More Hacks!” Summary is that there is progress concerning HAProxy zero-downtime reloads on linux, even under heavy connection load. Interestingly, microservice owners doing frequent … Continue reading

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Advanced Swagger UI Techniques

The benefits of using Swagger/OpenAPI are to maintain consistent API specifications, validation and documentation. And the Swagger UI documentation tool initially looks very attractive cosmetically. However there’s no publishing or privacy restriction features. The reason is that the Swagger API … Continue reading

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Perl and Monotonic Time Functions

Perl on Linux supports the POSIX C clock_gettime() function to get the monotonic time (always increasing system time, except for variable overflow) values: Comparing monotonic time values: avoid problems with leap seconds going backwards in time by NTP, but can … Continue reading

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