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Quotes Around Names In Error Messages
I saw this error a few minutes ago: failed to process input: RUNTIME ERROR: function has no parameter stack This threw me for a minute as I was trying to work out which parameter stack went missing, what I did to cause it to go missing, and what the heck a parameter stack actually is anyway. But it had nothing to do with any sort of stack. The error message was showing up because a function call was expecting a parameter with name “stack” which was missing from the function definition. Continue reading →
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Interesting feeling I had just now. I was drafting a reply in Micro.blog which I chose not to post. And yet, it feels like I’ve posted it. Wonder if that falls into the same sort of fallacy as the one where talking about what you’ll do feels like you’ve actually done it. 🤔
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A park I frequently go to once had a non-directional beacon transmitter built there. Being somewhat interested in things like this, I always enjoyed looking at it as I walked by. It was decommissioned in early 2020 and now there’s no trace of it ever being there. I kinda wish I had a photo of it.
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Web Search Works With Blogs Too
Here’s one more reason to write (or syndicate) to your blog instead of post directly to social media: you can use web search engines to find what you need. I hear a lot of people complain about the crappy search in Twitter or the lack of search in Mastodon, but this won’t be a problem if you post to your site and let public search engines crawl it. They’re incentivised to make sure their search is good, so you’re more likely to get better results more quickly. Continue reading →
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Some acorns fell to the ground while I was passing under an oak tree this afternoon. I looked up and saw a few female king parrot perched there, feeding on the acorns.
It was difficult making them out: their green plumage provided good camouflage.
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TIL that long-clicking some toolbar icons in desktop Safari will bring up a menu. I would’ve though a right-mouse click would suffice for that, but I guess touchpads and traditional Mac mice only have a single button. I just wish I could make the long-click delay a bit longer.
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Setting up Yarn on a new machine to manage some JS packages. As usual, everything about how the tool works is completely different from the last time I installed it. So, once again, what was expected to take 5 minutes is now taking 30 as I learn the new way of doing things. 😩
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I don’t understand people — adults who are by themselves — who go to a cafe just to watch something on their phone with the load speaker. A bit discourteous in my opinion. Please use headphones if you got them. Otherwise, watch it at home. That way you won’t distracting others.
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Reading something about workplace memos this morning got me thinking: are workplace memos still a thing? As in printed memos pinned onto bulletin boards? I’ve never worked anywhere that did this. I’d think most places would use email for this now, especially after 2020.
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Looking at the core gRPC status codes this morning. There are 17 status codes in all, and most of them — like
NOT_FOUNDorPERMISSION_DENIED— are what you expect. I can see why those codes are listed there. They’re pretty common error conditions seen in most systems.But the code
DATA_LOSSappears there as well:DATA_LOSS (15): Unrecoverable data loss or corruption.
I’m a little curious as to why that error case was considered worthy enough to be given a code here. Hopefully not because it was frequent enough to warrant one.
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Looking through my drafts last night to see if I could use one of them for my daily post. Found one that I wished I actually published at the time. Not because it was insightful or anything. It was just a record of what I did that day. But that’s sort of what this blog’s about in the end (as I need to keep reminding myself).
P.S. I ended up publishing it with the original timestamp using Micro.blog’s scheduling feature. It’s super useful for publishing things with date-stamps in the past as well as the future. I use it all the time.
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Spent some time closing off the Dynamo-Browse shortlist. I think I’ve got most of the big ticket items addressed. Here’s a brief update on each one:
Fix the activity indicator that is sometimes not clearing when a long running task is finished.
How long running tasks are dealt with has been completely overhauled. The previous implementation had many opportunities for race conditions, which was probably the cause of the activity indicator showing up when nothing was happening. I rewrote this using a dedicated goroutine for handling these tasks, and the event bus for sending events to the other areas of the app, including the UI layer. Updates and status changes are handled with mutexes and channels, and it just feels like better code as well.
It will need some further testing, especially in real world use against a real DynamoDB database. We’ll see if this bug rears its unpleasant head once more.
Fix a bug in which executing a query expression with just the sort key does nothing. I suspect this has something to do with the query planner somehow getting confused if the sort key is used but the partition key is not.
Turns out that this was actually a problem with the “has prefix” operator. It was incorrectly determining that an expression of the form
sort_key ^= "string"with no partition key could be executed as a query instead of a scan. Adding a check to see if the partition key also existed in the expression fixed the problem.Also made a number of other changes to the query expression. Added the ability to use indexed references, like
this[1]orthat["thing"]. This has been a long time coming so it’s good to see it implemented. Unfortuntly this only works reliably when a single level is used, sothis[1][2]will result in an error. The cause of this is a bug in the Go SDK I’m using to produce the query expressions that are run against the database. If this becomes a problem I look at this again.I also realised that
trueandfalsewere not treated as boolean literals, so I fixed that as well.Finally, the query planner now consider GSIs when it’s working out how to run a query expression. If the expression can be a query over a GSI, it will be executed as one. Given the types of queries I need to run, I’ll be finding this feature useful.
Fix a bug where
set default-limitsreturns a bad value.This was a pretty simple string conversion bug.
Add a way to describe the table, i.e. show keys, indices, etc. This should also be made available to scripts. Add a way to “goto” a particular row, that is select rows just by entering the value of the partition and optionally the sort key.
These I did not do. The reason is that they’ll make good candidates for scripts and it would be a good test to see if they can be written as one. I think the “goto” feature would be easy enough. I added the ability to get information about the current table in the script, and also for scripts to add new key bindings, so I don’t force any issues here.
The table description would be trickier. There’s currently no real way to display a large block of text (except the status bar, but even there it’s a little awkward). So a full featured description might be difficult. But the information is there, at least to a degree, so maybe something showing the basics would work.
Anyway, the plan now is to use this version for a while to test it out. Then cut a release and update the documentation. That’s a large enough task in and of itself, but I’d really like to get this finished so I can move onto something else.
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With all the designs I’ve made for systems using the Stripe API that blew up in my face because of some undocumented edge-case, you would’ve though I’d internalise this by now, and remembered that the only real strategy for knowing that a design is viable is to actually test it.
But no.
And so here I am once again, trying to contort my design so that it’ll work with the Stripe API while trying to avoid making any dramatic changes. 🤦
So, for next time: build a prototype, and use it to validate your hypothesis. Honestly, just do it. Spending those few hours of work now will save you the many hours of work down the line, when you find that you’ve hit some edge-case and you’ll have to go back to the drawing board.
Just frickin’ prototype!
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It’s Tuesday, I don’t shutdown my laptop during the week, and I only just now launched a terminal and IDE. Guess how much programming I did yesterday.
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Whenever I read something about tech or music, a voice in my head starts saying things like I can do that, I can’t do that, I could’ve done that, I should’ve done that, I did do that, etc.
I wish that voice just shut up. It’s debilitating hearing this when you’re just trying to learn something or appreciate someone else’s work.
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Less Consuming, More Creating
Mike Crittenden posted a good quote from a random Hacker News commenter: Less consuming, more creating. Doesn’t matter what it is, doesn’t matter if it’s bad. This quote actually sums up this blog quite nicely. The first line explains why it came to exist. The second line describes how it continues to exist. Happy 1,000th post. Continue reading →
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Ballarat Beer Festival 2023
My friends and I returned to Ballarat today for the Beer Festival. It was another stunning day for it: sunny, mild, not too hot. Much like last year I took an earlier train to walk around Ballarat a little. Not much to report here: very little has changed. But I never see Ballarat so it’s good to walk around a little. My friends were on the train behind mine and I caught up with them when I boarded at Ballarat. Continue reading →
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Very hot today. Mercury hovering just under 40°C, with every chance that it may get hotter than that. But you know what? I rather it be hot today than tomorrow. Why? You’ll find out tomorrow. In the meantime… cheers! 🧊☕️
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Hmm, it’s hard not feeling a little unsettled after reading this Stratechery post. One thing’s for sure, I’m a bit more doubtful of the post I wrote two days ago.
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Anyone making a software tool that converts times between time-zones, please let me enter the time-zone as an offset from UTC.
Something that only accepts time-zone abbreviations or city names are problematic. For one thing, zone abbreviations are location specific. Dealing with technology mainly developed in the US, I’ve got into the habit of writing
AESTwhen I want Australian Eastern Standard Time. But I wouldn’t bat an eyelid if I saw one of my compatriot useESTto mean the same thing. Is your tool smart enough to recognise this, or will it just default to US Eastern Standard Time?Now granted that’s one that’s got a work around. But let’s say I want to know the time on Low Howe Island. I’d probably use
LHSTfor that, but does that mean “Lord Howe Standard Time” (UTC+10:30) or “Lord Howe Summer Time” (UTC+11:00)? Both of those abbreviate toLHST, and your tool will need to be smart enough to know the particular date and whether or not summer time is in effect. If you think you can handle that edge case, take a look at the list of time-zones abbreviations on Wikipedia to see how you’d be able to handleBST.What about city names? Yeah, city names might work, but you have to make sure your tool knows of every city out there. I’ve been trying to use Numi to convert from Melbourne time to Apia time. The docs seem to suggest that typing in
13:00 Melbourne time in Apiashould work. But as far as I can tell, it doesn’t seem to recognise this as a time-zone conversion expression. It seems to give up and just give me1:00 pmthe answer, possiably because it doesn’t know about Apia1. I’m wondering if it even knows about Melbourne (I don’t know what each of the colours mean).
And let’s not forget the issue of multiple cities having the same name. Melbourne could refer to Melbourne, Australia or Melbourne, FL, United States. I’d like to see how your tool handles Portland (keep in mind there’s a Portland in Australia as well).
So, please. Make it easy on everyone, including yourself, and just recognise
UTC±xx:xx. It would be so much easier and less ambigious if I could just to13:00 UTC+11:00 to UTC+13:00. Or whatever, pick a syntax that works for you.And if you do have support for this, please make sure you document it somewhere.
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Apia is the capital of Samoa ↩︎
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Ignoring Bard to Speak to Paulie
So this happened today. Our team was testing the integration between two systems. The first system — let’s call it Bard — can be configured to make API calls directly to Stripe, or be configured to use the second system — let’s call it Paulie — to call Stripe on it’s behalf. Bard has a REST API that is used by the HTML front-end to handle user requests. Paulie is designed to be completely isolated from the front-end and has a simple gRPC API that Bard calls. Continue reading →
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I tried ChatGPT for the first time this morning. I needed a shell script which will downscale a bunch of JPEG images in a directory. I’m perfectly capable of writing one myself, but that would mean poking through the ImageMagick docs trying to remember which of the several zillion arguments is used to reduce the image size. Having one written for me by ChatGPT saved about 15 minutes of this (it wasn’t exactly what I wanted, I did need to tweak it a little).
I don’t know what the future holds with AIs like this, and I acknowledge that it has had an effect on some peoples’ living (heck, it may have an effect on mine). But I really can’t deny the utility it provided this morning.
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Flights and accomodation for the Europe trip booked. It’s been hanging around my to-do list for the last two months. Good to finally check that off.
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I suspect, in a world where companies are replacing staff with AIs, that the organisations that choose to keep the humans on will have the competitive advantage. You can’t form a connection with a machine.
