Mike Perham :sidekiq:

Rubyist, guy behind @sidekiq and Faktory.

For support, please open a new discussion at https://github.com/sidekiq/sidekiq/discussions.

Personal: @getalifemike

Public Key

npub1ylp3lf5xh7cutynyjunvjeaf8faq3uwc059amt0q53w2xasykk5q70x99y

NIP-05 Address

getajobmike@ruby-social.mostr.pub

Profile Code

nprofile1qqsz0scl56rtlvw9jfjfwfkfv75n57sg78v86z7a4hs2gh9rwcztt2qpz4mhxue69uhhyetvv9ujuerfw36x7tnsw43q7ssulm

Publishing to

relay.ditto.pub

Author Public Key

npub1ylp3lf5xh7cutynyjunvjeaf8faq3uwc059amt0q53w2xasykk5q70x99y

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Last Notes

2026-10-27 15:47:08 UTC

It is so frustrating, lots of my customers are seeing Stripe-sent emails not delivered to their inbox. And I can’t debug why…

2026-10-15 20:55:49 UTC

Fascinating article, Living in the Weimar Era of Ruby https://blog.julik.nl/2026/10/the-weimar-of-ruby

2026-10-15 19:22:23 UTC

I’m trying to figure out if Spinel-native framework compilers like roundhouse or tep are genius or madness. And do I need to build one for Sidekiq? https://github.com/rubys/roundhouse
https://github.com/oripekelman/tep

2026-10-15 16:07:19 UTC

The 2027 Gem Fellowship is quickly approaching. This year we are putting out a call to any companies using Ruby:
Join us in supporting the maintainers!
https://www.mikeperham.com/2026/10/15/coming-soon-the-2027-gem-fellowship/

2026-09-22 15:23:20 UTC

So much AI-powered business spam in my inbox. It’s great! 🙄

2026-09-03 22:11:55 UTC

It kills me that Amtrak can't provide a usable train from Portland to San Francisco, it takes 18 hours to go 600 miles. The same trip by car takes 10 and jet ~2. 🚫🚅
https://cdn.masto.host/rubysocial/media_attachments/files/117/209/400/074/809/871/original/aab17e04c542e6ee.png

2026-08-19 23:19:58 UTC

I'm prototyping Ractor-safety in various Sidekiq features and have the entire Sidekiq test suite passing green with the Ractor-safe LocalPool in https://github.com/mperham/ratomic instead of using connection_pool. Still a LONG ways to go but encouraging...

2026-08-19 16:33:09 UTC

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https://bugs.ruby-lang.org/issues/22252 💎

2026-08-19 16:24:38 UTC

"defined with an un-shareable Proc in a different Ractor"
It would be incredibly useful to include the source location of the Proc in the error message. In Ruby code with lots of abstractions, it can be unclear where the Proc came from.

2026-08-18 16:45:37 UTC

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@nprofile…6hw6 I'm firmly in the "iCloud Drive, git or ephemeral" camp.

2026-08-18 15:52:50 UTC

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@nprofile…6hw6 you trying to take food out of security researchers mouths sam? that goldmine is inexhaustible.

2026-08-10 18:40:54 UTC

Classic gpg:
% gpg -v -v -v -v --list-keys
gpg: using character set 'utf-8'
gpg: enabled compatibility flags:
gpg: using pgp trust model
(tells me nothing useful for debugging, absolutely useless output)

2026-08-10 18:39:30 UTC

My DEB/RPM package building house of cards for Faktory has mysteriously stopped working. I'm wondering if I should just stop publishing RPM/DEBs for it, most customers seem to be using Docker.
FWIW DEB/RPM building is a nightmare and should be avoided at all costs.

2026-08-08 01:15:53 UTC

Amtrak cancelled my train to #XORuby tomorrow morning so I will be unable to attend. 😭

2026-08-05 19:29:32 UTC

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@nprofile…agqu in fact .cat does exist https://www.iana.org/domains/root/db/cat.html

2026-08-05 15:19:32 UTC

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@nprofile…kfng man, you must be cursed. Apple stuff is way more reliable than most other tech and all of that stuff has worked reasonably well for me. I airdrop all the time, cut/paste works in handoff, etc. All of this is networking, could you have a bad actor device on your network?

2026-08-05 15:15:39 UTC

SpaceX junk left in 2024, collided with the Moon yesterday.

2026-07-29 15:07:12 UTC

Learn the difference between someone who is nice vs someone who is kind. https://www.thesaurus.com/articles/nice-vs-kind

2026-07-29 08:20:35 UTC

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@nprofile…nnjq why not generate a binary directly? Cucumber specs to ARM bytecode via AI.

2026-07-28 16:15:35 UTC

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@nprofile…4agh @nprofile…dugw 1488 == A DHH

2026-07-28 10:01:52 UTC

I’ll be there! #xoruby

2026-07-23 09:54:37 UTC

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@nprofile…5d9g I would look at the top 100 gems and see which have a native ext. Some have pure ruby fallbacks. But the native extension API makes performance improvement so hard. I always thought Rubinius had the right idea here: make everything pure ruby and tune that.

2026-07-23 07:53:15 UTC

RV now supports private gem servers like Sidekiq’s. Hurrah! 🎉

2026-07-22 20:50:17 UTC

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@nprofile…5d9g cut out native extensions.

2026-07-16 19:28:06 UTC

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@nprofile…ghaf from what I can see logged out, the only tweets I see on your page are years old.

2026-07-16 19:02:48 UTC

@nprofile…ghaf btw your GitHub profile does not point to your active Mastodon account but does point to your inactive X account.

2026-07-16 18:03:45 UTC

This new gem from @nprofile…ghaf looks to be extremely useful for regression testing fast paths within a code base. Extraneous allocations can cripple a fast path and hugely affect performance. https://github.com/sferik/minitest-memory/

2026-07-16 17:29:09 UTC

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@nprofile…5d9g @nprofile…dxl5

2026-07-15 21:17:27 UTC

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@nprofile…7fqd literally my least favorite part. They should put that bit out to pasture.

2026-07-14 22:31:11 UTC

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@nprofile…qzde @nprofile…d3pv The coop was created in the Fall last year, well before Matz's project but yeah, it's unfortunate they didn't blast their name out more to "reserve" the word in the community.

2026-07-13 21:42:49 UTC

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@nprofile…2x4y IMO the maintenance, complexity and security aspects justify it as a premium tier feature.

2026-07-13 21:12:31 UTC

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@nprofile…lsea replacing one bit of complexity with alternative set of complexity is not a good solution IMO.

2026-07-13 18:50:21 UTC

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@nprofile…zmp0 buggy native code can crash the entire process, pure ruby code cannot. Plus a locally install compiler is a massive security hole.

2026-07-13 18:28:37 UTC

I've spend a non-trivial amount of time trying to avoid using native Ruby gems on my servers. It's been increasingly difficult and now appears to be impossible since ruby-core has moved basic functionality like `date` and `bigdecimal` into gems. Now my system requires a gigabyte of compiler stuff installed just to `bundle`. 😔

2026-07-07 16:04:20 UTC

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@nprofile…ersh ugh sorry to hear. I wish you a speedy recovery!

2026-06-17 15:23:49 UTC

I worked with the fine folks at @nprofile…mzfr to rework my corporate brand over the last few months. They published this nice case study about the work. It was a pleasure!
https://www.beflagrant.com/work/contributed-systems-rebrand-and-refresh
The final result is here: contribsys.com

2026-06-14 18:40:57 UTC

One year of rv, an update from @nprofile…089a https://andre.arko.net/2026/06/13/rv-plan-and-progress/

2026-06-13 21:24:27 UTC

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@nprofile…x6pn 3000 ft over 3 floors but we have patios on each side which aren’t covered well with a solitary AP.

2026-06-13 20:21:12 UTC

It seems like the latest generation whole home wifi mesh systems aren’t using Powerline for the backhaul anymore. I was relying on this since our house isn’t Ethernet wired. Any recommendations?

2026-06-11 22:03:52 UTC

I've started publishing SHA256 sums for each sidekiq gem release. Is anyone aware of any better tooling for integrity verification for published binaries before I homebrew a bunch of scripts? It's pretty awkward as is.
https://sidekiq.org/sha256sum.txt

2026-06-08 20:48:47 UTC

One of the nice things about watches is they become part of YOU. It’s normal to wear the same mechanical watch for decades. Treating it like a 5 yr disposable item sucks.

2026-06-07 16:55:40 UTC

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@nprofile…d4d5 sure, I wonder why show them in the iOS app at all if the experience is so bad.

2026-06-07 15:54:58 UTC

Considering how big each company is, it’s incredible to me that neither Stripe nor Gusto have a native iPad app. This UX is awful.
https://cdn.masto.host/rubysocial/media_attachments/files/116/709/634/164/984/649/original/c29c1e7294894198.png
https://cdn.masto.host/rubysocial/media_attachments/files/116/709/634/475/493/446/original/d032218566eba988.jpeg

2026-06-05 18:32:49 UTC

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Sorry, link to new bylaws…. https://storage.ghost.io/c/17/0a/170a5cb5-5524-4ba0-93b6-f17fc9bacca6/content/files/2026/06/Ruby-Central-Bylaws--2026.06.05-.pdf?attribution_id=6a2216953c67390001a9065b&attribution_type=post&ref=ruby-central-news-newsletter

2026-06-05 18:31:54 UTC

I’m reviewing the proposed bylaws for Ruby Central and:
- I can’t find an actual board member election process so I presume board members are still board elected, not community elected.
- the new community governance model is strictly advisory, with no teeth (12.3)
- community governance can be suspended for emergency reasons, like if they believe Andre is hacking their site and need to take over a repo (12.7)
I don’t see this as a major improvement. Anyone feel otherwise?

2026-06-03 14:25:31 UTC

Got Sidekiq questions? The Ruby Users forum is the newest place where you can get Sidekiq help anytime. https://www.rubyforum.org/t/get-sidekiq-and-faktory-support-in-the-ruby-users-forum/414

2026-05-29 15:20:38 UTC

I'm seeing this with Sidekiq too. Lots of small PRs with minor changes, adding test coverage, fixing edge cases which never occur in practice, etc.
I can't speak to rsync but it's nothing to worry about for Sidekiq (and to be clear, I still do not use any AI at all)

2026-05-28 17:53:05 UTC

It sucks that in 2026, @nprofile…dps4 still doesn’t support IPv6 for droplets built via images.

2026-05-27 03:54:39 UTC

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@nprofile…xl6l unclear but possible.

2026-05-27 02:30:54 UTC

Ruby 4.0 warning: it looks like a GC change in 4.0 means Sidekiq may leak memory on every job failure. v8.1.6 will be released tomorrow with a workaround. https://github.com/sidekiq/sidekiq/issues/7006

2026-05-26 16:25:32 UTC

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@nprofile…t7rw If you don't know what "rails-core" is, he doesn't matter to you.

2026-05-26 16:24:36 UTC

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@nprofile…d4d5 It was a post of his promoting some white supremacist fiction novel. Just new to me, not necessarily new.

2026-05-26 14:49:05 UTC

Another day, another rabidly racist post from Der Leader. At this point I don’t know how anyone remains on rails-core. How do you live with yourself?

2026-05-14 04:16:49 UTC

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@nprofile…qzde use the TTIN signal to dump backtraces

2026-05-13 22:12:29 UTC

Towards a safer Timeout API in Ruby.
https://beautifulruby.com/code/tcp-user-timeout
It's a bit of a blunt solution, some sockets may want a 0.1s timeout while others want a 10s timeout. I think a Fiber-local Context API (like Go's but not manually passed around) might be another interesting idea. Maybe I'll prototype something ...

2026-05-11 15:36:02 UTC

Reminder: you can go to lobste.rs instead of hacker news, mute the “llm” and “ai” tags and never have to see AI articles again. ❤️

2026-05-10 18:58:10 UTC

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@nprofile…dugw same dang behavior when trying to exit the Python repl and the GNU help flag. You know what I meant, just do it.

2026-05-09 01:25:38 UTC

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@nprofile…8ahu thanks for the explanation, that helps me understand the context much better. I wonder if steps could have persisted their return value and repopulated the value on each execution without re-executing the block. It’s a tricky problem to solve.

2026-05-09 01:08:57 UTC

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@nprofile…8ahu shouldn’t that be part of the step cursor?

2026-05-08 21:35:23 UTC

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I guess I’m unclear what job attributes solve when we already have CurrentAttributes and around_execution callbacks.

2026-05-08 19:53:35 UTC

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@nprofile…fr89 yep, but there’s no way to enforce idempotency through Ruby. Something like Haskell or Clojure can get there.

2026-05-08 19:34:12 UTC

ActiveJob just added support for additional attributes on jobs. I think long term that could be a bad idea. The power of jobs is that the only state they have is the job arguments, making them easier to test. Sidekiq provides middleware to set up orthogonal concerns which shouldn’t explicitly be part of the job code. I’m worried attributes will lead to mixed concerns and poor quality code.

2026-05-07 23:20:14 UTC

TGIF! @nprofile…fj44 8.1.4 is now available with minor changes. https://github.com/sidekiq/sidekiq/blob/main/Changes.md#814

2026-04-30 22:16:53 UTC

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@nprofile…4ns9 to me the big political change is demanding liability for AI companies. AI is being used as a force multiplier for crime.

2026-04-30 18:42:53 UTC

We seem to be seeing significant supply chain attacks every day now. How do we get out of this tech doom loop?

2026-04-29 14:48:26 UTC

Good thread 🧵

2026-04-28 20:26:31 UTC

Same reason I moved the Sidekiq wiki to Sidekiq.org a few months ago. Everyone should be reducing their dependency on github right now.

2026-04-27 19:58:42 UTC

I've created Asynq, a new lightweight Sidekiq::Client alternative meant to be safe for use in Ractors.
https://github.com/mperham/asynq

2026-04-24 16:33:04 UTC

Hot new redesign for contribsys.com just dropped, courtesy of @nprofile…mzfr
https://contribsys.com

2026-04-24 13:52:20 UTC

Interesting to see matz using Claude heavily to build this. Every commit is AI.

2026-04-19 16:40:42 UTC

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@nprofile…nnjq schrodinger’s strait

2026-04-17 17:39:09 UTC

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@nprofile…7fqd @nprofile…kfng supporting competition can also incentivize reform. We didn’t see cooldowns in rubygems until gem.coop built it.

2026-04-16 21:19:18 UTC

Sidekiq 8.1.3 is released with a subtle bug fixed which could lead to duplicate job execution if two Capsules are pulling from the same queue using Sidekiq Pro’s super_fetch. https://github.com/sidekiq/sidekiq/blob/main/Changes.md#813

2026-04-14 20:27:29 UTC

I recently cut my first Gem Fellowship check to @nprofile…exvm from the @nprofile…5qwh project. He’s in Portland too so we got a pic. Congrats Jared! https://gem.coop/updates/2026-fellowship/
https://cdn.masto.host/rubysocial/media_attachments/files/116/404/941/222/597/563/original/53895c8837690a81.jpeg

2026-04-13 16:29:41 UTC

Config flags are a bane https://00f.net/2026/04/11/config-flags/ (this article remains me I should search config hacks to remove for Sidekiq 9.0.)

2026-04-12 04:45:52 UTC

This retrospective music video from Razor 1911 is a legitimate banger if you knew the warez, mod, demo and BBS scenes in the late 80s. https://www.youtube.com/watch?v=dybkLM-1eQo

2026-04-10 01:33:29 UTC

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@nprofile…7ds3 it still executes deterministically, normal programming languages have poorly named methods…

2026-04-09 21:58:33 UTC

From a compsci POV, they are forcing non-determinism into the software development process when you want it to be predictable and deterministic. GIGO: Garbage In, Garbage Out.

2026-04-08 18:01:47 UTC

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@nprofile…6mvt no idea, just pushing warnings when I hear about them in Slack forums.

2026-04-07 19:32:09 UTC

`bundle up rack-session` if you use it. This is a 10/10 security bug for anyone that uses Rack::Session::Cookie. https://github.com/rack/rack-session/security/advisories/GHSA-33qg-7wpp-89cq

2026-04-06 21:48:13 UTC

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@nprofile…5d9g the filesystem tree

2026-04-06 16:52:07 UTC

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@nprofile…9sxd https://github.com/sidekiq/sidekiq/blob/main/Ent-Changes.md#head

2026-04-06 15:58:06 UTC

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@nprofile…9sxd It's something I've been considering. You may push me over the edge as it's only useful for rolling restarts. Remove it from gemspec, make it optional.

2026-04-02 15:29:02 UTC

Einhorn 1.1 was released yesterday with some dependency updates, no more native gem dependencies by default! https://github.com/contribsys/einhorn/blob/main/Changes.md#110

2026-04-01 20:39:18 UTC

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@nprofile…zmfg just look at the changelog.

2026-04-01 18:02:40 UTC

Mysterious warning to Ruby app maintainers: “bundle update rack” asap.

2026-04-01 15:10:49 UTC

Sure, by migrating it to Azure they made it less stable, but don't forget they also migrated the UI to React so it's slower too. Enterprise-ready™!

2026-03-30 19:39:47 UTC

I see many AI proponents advising "Use it to build all of your own tooling". This falls apart when people and orgs depend on those tools. Total cost of ownership is:
TCO = Cost of creation + (Cost of annual maintenance * years)
Does AI make maintenance cheaper? It is easy to maintain a big pile of AI generated code? GitHub's downtime chart would suggest the answer is "NO".

2026-03-25 20:52:25 UTC

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@nprofile…4cul
Nothing really has changed, see also:
https://www.mikeperham.com/2017/04/10/migrating-from-redis-namespace/

2026-03-24 22:13:31 UTC

Hello, my fellow nerds!
@nprofile…fj44 8.1.2, Sidekiq Pro 8.1.1 and Sidekiq Enterprise 8.1.1 are now available. The major change is the new `kiq` terminal UI now available.
Upgrade and try `bundle exec kiq` to see it in action!
https://cdn.masto.host/rubysocial/media_attachments/files/116/286/449/711/345/419/original/a6f3d6a1a1915f36.png

2026-03-24 21:13:29 UTC

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@nprofile…wkwd @nprofile…7fqd Really enjoying the mix. Similar in sound to the Random Movement DnB podcast. Thanks!

2026-03-23 21:19:08 UTC

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@nprofile…nnjq in a patch release that’s about to go out of support. Minitest 6 is still actively developed and future releases may break something.

2026-03-23 20:55:54 UTC

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@nprofile…nnjq why is that baffling? Makes sense to me. You lock to a major so future versions of those deps don’t break you.

2026-03-21 21:12:09 UTC

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@nprofile…clrk @nprofile…6hw6 why not treat it more as ephemeral chatter rather than content needing a forever home? That’s what I use a blog for.

2026-03-19 18:33:28 UTC

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@nprofile…vlm2 This is what I saw https://bsky.app/profile/melodyschreiber.com/post/3mhewfv2zk22r apologies if it is social media slop

2026-03-19 16:38:38 UTC

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@nprofile…vlm2 I read he performed at trump rallies.

2026-03-11 23:18:29 UTC

I announce kiq on reddit and the only comments are complaints about Redis.
Did you know if you have nothing relevant or nice to say, you can choose not to say anything? What a world.

2026-03-09 22:10:24 UTC

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@nprofile…prsp I'm not a cook at all. I throw it in almost anything with rice, especially burritos and fried rice.

2026-03-09 21:53:56 UTC

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`bin/kiq` is now available as a @nprofile…fj44 binary if you pull main. Feedback welcomed!

2026-03-09 20:39:54 UTC

Sidekiq's TUI is getting a lot closer to usable now. What should the actual binary be called? `skq` maybe? `skui`?