Howard Chu @ Symas

CTO Symas Corp., Chief Architect OpenLDAP Project, Musician

Public Key

npub1tt4j2zeswksjh5z7zmy283qd4yd920afy9j28xg45wsxzhl9rpjqrex9ud

NIP-05 Address

hyc_at_mastodon.social@mostr.pub

Profile Code

nprofile1qqs946e9pvc8tgft6p0pdj9rcsx6jxj4875jze9rny268grptlj3seqpz4mhxue69uhhyetvv9ujumt0wd68ytnsw43qz9nhwden5te0wfjkccte9ekk7um5wgh8qatz9ujn4y5a

Publishing to

relay.mostr.pub

Author Public Key

npub1tt4j2zeswksjh5z7zmy283qd4yd920afy9j28xg45wsxzhl9rpjqrex9ud

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Last Notes

2024-09-08 20:00:27

if you fry dumplings in a non-stick pan are they technically still pot-stickers?

2024-08-08 18:27:11

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@npub16r0…z5pl Re-read my May 15 2022 post, screenshotted above. NgU doesn't fix the problem, it can't.

2024-08-08 16:17:44

Bitcoin is for people who failed at math...
https://files.mastodon.social/media_attachments/files/112/927/297/946/430/793/original/d9f940b678f43400.png
https://files.mastodon.social/media_attachments/files/112/927/300/071/005/296/original/3f71cbbdf5c0192f.png
https://files.mastodon.social/media_attachments/files/112/927/300/629/207/011/original/8c6c9bbe570bc5fe.png

2024-08-08 15:43:07

Just donated to Malala Fund again today https://assembly.malala.org/stories/the-day-harrow-high-school-students-answered-malalas-call-to-action

2024-08-01 00:01:38

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@npub13le…6saf reminds me of my Atari 1020 color plotter. Was it the same under the skin?

2024-07-28 01:48:31

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@npub1c83…8gsr Klingons? Turn in your badge, you're no Star Trek fan.

2024-07-25 03:09:56

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@npub1ua7…rrg3 I guess. It used to be that only Uncle Sam could retrieve that data from the telcos, but I guess just about anyone can buy the data these days.

2024-07-24 17:20:58

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@npub1yh7…xmh5 have you emailed the mailing list for help? That's a pretty typical use case.

2024-07-21 20:43:26

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@npub1ua7…rrg3 yes, in 3-space use spherical coordinates https://en.m.wikipedia.org/wiki/Spherical_coordinate_system
Lack of RAM, hmm... you can't spare 256 bytes?

2024-07-21 20:39:02

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@npub1ua7…rrg3 use radians x4 for trig, hardcode trig lookup tables.
0 - 2pi is 0-63, 4x gives you 0-249, max precision for 1 byte lookup tables. This is all standard stuff.

2024-07-12 16:51:51

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@npub13c3…mnws you actually would need an X-ray of that cat to see the first bird that arrived.

2024-07-04 17:41:39

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@npub1yck…ujmw Irrelevant. The Project only accepts submissions from original code authors. Code produced by GPT is not code written by the submitter and therefore can never be accepted.

2024-05-10 22:45:55

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@npub1wxf…8z6u what would you suggest as alt text? There's not much point to just saying "here's a view of the aurora"

2024-05-10 22:27:29

Just a few minutes ago in Bunbeg #aurora
https://files.mastodon.social/media_attachments/files/112/419/146/727/933/443/original/daeba6189294fdaa.jpg
https://files.mastodon.social/media_attachments/files/112/419/146/774/956/828/original/5517759381337a0f.jpg

2024-04-29 02:52:26

Most sci-fi stories involving time travel involve a mechanism that's incredibly rare and/or difficult to operate.
What if complete plans for a working time machine, including its power source, were published anonymously on the web, in a decentralized fashion? (Impossible to identify who published it, or from where, and thus making it impossible to go back and prevent the publication.) What if anybody could build their own, using commonly available parts and tools?

2024-04-16 03:11:44

Tfw you're midway thru the red-eye return flight to Europe from the US, and you're going to swap the US SIM card out of your phone, and you push a paperclip into the SIMcard holder's eject hole, and it pops out suddenly and you see the microSD and SIM cards go flying into the darkness.

2024-02-29 00:55:05

Bitcoin sucks, literally. Sucks electricity, among other things... https://mastodon.social/@fj/112009495941530784

2024-02-02 15:56:52

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@npub1hce…c5cz Performance above all; preallocated space is faster than incrementally allocated.
And zero-maintenance is another priority. Easiest is to just set maxsize to "the size of my available storage" and forget about it. If you run out of storage, well, that's a provisioning issue and you would have run into that problem anyway, with incremental allocation.

2024-02-02 15:49:51

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@npub1hce…c5cz there's a resize function. But if you're using it, You've Done Something Wrong.

2024-02-02 14:52:47

This is another aspect of #LMDB's design that most people don't appreciate - by requiring you to declare up front the maximum size you'll allow the DB to grow to, you'll never be awakened at 5am to deal with a server that ran out of disk space. Or a server that killed other apps because it ate up all of the free disk space. Put the DB on a filesystem (or a raw block device), set the maxsize equal to the free space remaining on that storage, and forget about it.
https://mastodon.social/@gvwilson/111861409907828826

2024-01-19 01:14:15

I saw a recent post about mailman breaking on a recent debian upgrade go by here but didn't pay it much attention. Can't find it now, but - same thing has happened to openldap.org today. We upgraded debian and now all the OpenLDAP mailing lists are dead. Emails sent to the lists are going to /dev/null with no notification to the sender. Aggravating, to say the least.
Looks like it may be mailman and postfix refusing to talk to each other.

2023-12-28 23:50:02

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@npub1c3m…43se I avoid giving answers, and always prefer to give pointers to answers. Teach people to find answers on their own.

2023-12-24 11:55:01

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We've relied on this property in the past, to prove to an installation that the database corruption they were experiencing wasn't an LMDB bug - it turned out to be a faulty DRAM DIMM in their server. Without LMDB's deterministic write behavior, convincing someone of these cases would be a lot more difficult.
But proving the presence of a bug and narrowing down its cause are really two different tasks, and thus requires two different types of logging.

2023-12-24 11:52:20

There's an art to debugging with print statements. You need to show enough to be able to identify problems happening, without being so verbose as to overwhelm with useless noise. When #LMDB is built with debug logging enabled, the output can be too voluminous to sift thru.
But it shows exactly what the code is doing, in such a way that you can parse the log and rerun the exact same operations, and get an identical database as a result.

2023-12-21 21:20:22

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@npub12f3…rlsm @npub15hc…mtng @npub10fl…2xc7 the rocket equation applies to vehicles whose mass decreases as fuel is consumed. Sealed batteries don't change mass as they're discharged. What are you on about?

2023-12-15 16:17:58

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@npub1aux…6rq5 sure, what else would you be ruminating on all weekend

2023-09-18 09:08:34

"#OpenLDAP has stagnated" - nonsense. Work on #LMDB has slowed, because it already fulfills its goals. And when you're already zero-copy, wait-free, and running at the speed of your OS, there's nothing left to optimize.
https://news.ycombinator.com/item?id=37538780

2023-09-14 05:28:48

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@npub1q4y…x7aj the smart thing to do is take the time off and find a new job. Once such a large layoff hits, morale tanks, and the remaining staff get burned out by the increased workload. You can't live in that kind of environment, knowing you can't trust any of your managers to tell you the truth, etc. Companies run that way don't deserve to recover.

2023-08-26 20:36:22

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@npub1t5m…9guy I never got them before, but have had a few of those weird kaleidoscope effects the past couple years. What triggers yours?

2023-08-19 01:18:34

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@npub1js3…ntcw welp. I still hand-write HTML 4.0 websites so they load in 2 seconds at 38.4kbaud. Cuz there's no excuse for slow page loads these days, even if you're on a 2G phone browser.

2023-08-19 01:06:01

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@npub1js3…ntcw hear hear! I had at least 6 years coding experience with no modem at all, writing programs on HP calculators and trying to cram as much as possible into 49 steps of program memory...

2023-08-15 04:10:28

389ds is getting ready to migrate users from BerkeleyDB to LMDB https://www.port389.org/docs/389ds/releases/release-2-1-3.html
At this point, why does that project even exist? All of their essential code was written by the OpenLDAP Project: libldap, liblber, liblmdb. What value do they bring to the open source community?

2023-08-13 20:58:44

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Blue and green lasers adjacent
https://files.mastodon.social/media_attachments/files/110/884/311/203/446/338/original/9466a86686e7f672.mp4

2023-08-13 20:57:49

Playing with a blue laser in the rain - the shorter wavelength is reflected more strongly by water, so the drops sparkle as they pass thru the beam. A green laser shows the effect much more weakly, and a red laser doesn't show at all.
https://files.mastodon.social/media_attachments/files/110/884/306/636/944/898/original/c65d1e9c716ebb72.mp4

2023-08-06 05:06:07

Ethereum client switches back to #LMDB after too many hassles with MDBX https://github.com/sigp/lighthouse/pull/4360