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@retoor Oh, I had them set up as well… but I type faster than I notice changes on the screen.
And for everyone who *doesn't* set up different terminal themes for different environments — do it. It's too easy not to:
alias prod='tput setaf 128; ssh prod-host; tput reset' -
@donkulator Yeah... What about a scenario where you *want* databases to have the same name (they're on different hosts anyway).
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@tosensei @bazmd It doesn't apply. I was 100% certain I didn't need the test db any more. The issue is I called the command on a prod server by accident. And because I was patching stuff, I used a user with write access. I could, I guess, have a user that had access to things like `UPDATE`, but not `TRUNCATE`, etc… but it wasn't my job to manage users and I worked with what I was given.
Yeah, there was a delayed replication set up. I just wasted time. -
@cprn thanks, I forgot how to do it and the way I use now is not udobno
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@tosensei Oh, I fully agree I wasn't done — I still had to check a number of boxes on prod. But the initial statement regarded the necessity — I seriously didn't need the test db any more, and it really *was* safe to remove. The issue was rooted in removing the *wrong* db. So I guess… “check twice”, or something like that.
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@donkulator I don't disagree, but then there are probably a number of other variables I should've checked as well… At which point, it'd just make more sense not to meddle on production at all. But that fight I lost.
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@asgs Replicated database was 20 minutes behind, I paused the system, switched databases, removed bad query from binlog, forced a catch-up, unpaused. Downtime was way below 10 minutes, including checks (and that time I checked twice).
Too true, too true...
And the most useless function of the year award goes to...
On my twitter feed today.
Dumb mistake from when I was still working:
My work laptop’s SSD went haywire, and I/O would spike every 10 minutes or so for ~50 ms. The hardware guy said he could replace the SSD right away, or I could endure it for a few weeks and get a new laptop instead. Obviously, I agreed to wait. The stutter noticeably affected screen rendering, but I didn’t notice any other issues. Little did I know that every time it happened, all input was ignored (as in: not queued). Normally it wouldn’t matter, because hitting a random ~50 ms window is hard. How-the-f×ck-ever…
A few days later — without getting into “why” — I was forced to apply a patch in production. So I opened an SSH session to prod in one terminal, spun up a dev environment in another, copied the database schema from prod to dev, and made sure to test everything. No issues, so I jumped to prod, applied the patch, restarted services, jumped back to dev, and cleaned up the now-unnecessary database. Only to discover that my “jumped back to dev” keystroke didn’t register.
rant
devops
db
manual patchwork is badwork