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Upgrading GitHub.com to MySQL 8.0

38 pointsby bswinnertonover 1 year ago

5 comments

tiffanyhover 1 year ago
5–years old.<p>It’s interesting that the current LTS for MySQL is already 5-years old (2018).<p>I’m surprised there isn’t a more current LTS.<p><a href="https:&#x2F;&#x2F;en.m.wikipedia.org&#x2F;wiki&#x2F;MySQL" rel="nofollow noreferrer">https:&#x2F;&#x2F;en.m.wikipedia.org&#x2F;wiki&#x2F;MySQL</a><p>Especially when you see this quoted by MySQL team:<p><pre><code> ‘About every 2 years a new Long Term Support version will be released </code></pre> <a href="https:&#x2F;&#x2F;dev.mysql.com&#x2F;blog-archive&#x2F;introducing-mysql-innovation-and-long-term-support-lts-versions&#x2F;" rel="nofollow noreferrer">https:&#x2F;&#x2F;dev.mysql.com&#x2F;blog-archive&#x2F;introducing-mysql-innovat...</a>
jmg_over 1 year ago
Does anyone know if the performance regressions between 5.7 and 8.0 have been fixed? I no longer use MySQL regularly so I haven&#x27;t been following this.<p>If I recall correctly, this was one of the major reasons why people were deferring this upgrade.<p>---<p>&gt; Most notably, we encountered a problem where queries with large WHERE IN clauses would crash MySQL. We had large WHERE IN queries containing over tens of thousands of values.<p>The need to rewrite queries is mildly concerning. If this was part of their Rails codebase, I&#x27;m curious if these patches will make it into the ORM.
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kd913over 1 year ago
I figured this would be an opportunity for further vertical integration directly with Azure’s MySQL product.<p>Was there a reason this wasn’t done? The article seems rather explicit of running on top of Azure VMs.
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iamkochover 1 year ago
Seemlessly here means actions suffered neither an increase nor decrease in the frequency of incidents
fragmedeover 1 year ago
&gt; This is the story of how we seamlessly upgraded our production fleet to MySQL 8.0.<p>Was it seamless? I recall GitHub being down a bunch lately, and even though the downtime is unrelated to the db upgrade, from the outside looking in, I don&#x27;t know that I&#x27;d lean that hard on having done that seamlessly.
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