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Don’t make your users wait for GC
One of the weaknesses of Ruby is garbage collection. Although some improvements have been made (tunable GC settings, lazy sweep, bitmap marking), it is still a simple stop-the-world GC. This can be...
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Discovery of a MySQL bug
Recently, one of our MySQL instances crashed. We responded to the alert, but by the time we logged into the server, the MySQL instance has already restarted and recovered. So, we started to investigate...
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