paddybyers

13 ms·

1.
by paddybyers 1mo ago
I agree, no horizontally-scalable system is infinitely scalable in any dimension. You will hit some limit - for example, you might be able to support arbitrary scale in some dimension, but there is a bound on the sustainable rate of change,
2.
by paddybyers 3mo ago
I've run a disclosure program for ~7 years, which is an open paid program. However, over that time we've developed relationships with the most active and successful contributors, to the point that we'll now give them early ac
3.
by paddybyers 3mo ago
I wrote about this this morning [1]: > We're keeping our vulnerability disclosure program open - because even though they are rare, the genuine critical reports we receive, in amongst the noise, are still highly valuable. I don&#x27
4.
by paddybyers 4mo ago
> I did get to the stage (not by conscious memorisation) of being able to assemble and disassemble Z80 code in my head, with some accuracy. Same here. I never got any fluency using EXX and the shadow registers - there were so few situati
5.
by paddybyers 6mo ago
I remember Jim Woodcock as really inspirational - he was working with my PhD supervisor in 1987. We were working on a variant of Z for specifying what, today, we would call CRDTs. I was also lucky enough to meet Tony Hoare the same year and
6.
by paddybyers 7mo ago
Who remembers the Occam folding editor (1983)? This was the first time I saw this kind of outline-based navigation for code: https://www.transputer.net/tn/03/tn03.html#x1-30002
7.
by paddybyers 2y ago
Yes it's true. At Ably we support websockets, SSE and comet fallbacks (simple long-polling and streamed long-polling). It's less and less common but there are firewalls that fail to handle websockets correctly, or simply block the
8.
by paddybyers 4y ago
Disclaimer: I work for Ably. I agree that it's not valid to claim that websockets are the best fit in every situation. If the requirement is simply to stream server to client events, in an application where that doesn't depend at
9.
by paddybyers 5y ago
Disclaimer: I work for Ably. I agree in principle, so the libraries that handle websockets and also fallback transports using comet (eg SocketIO) are still widely used for that reason, and the commercial pub/sub service providers gener
10.
by paddybyers 5y ago
This ^ is my favourite writeup on the question of how you implement SOC2. I wish I had read that before we started - after going through the Type 1 and Type 2 process, we've ended up with the same conclusions. I've lost count of t
11.
by paddybyers 5y ago
Ably CTO here. Well that went well ... 1) The realtime service and website are different things. The blog post is talking about the service, which has been continuously available. 2) Oops, the website fell over. We'll fix that. Thanks
12.
by paddybyers 6y ago
I lived there for 20 years and never noticed
13.
by paddybyers 6y ago
We've been experimenting with Liftbridge at a range of scales and workloads, and clusters that are distributed across a single region perform very well. However, it's not really suitable for operating a cluster distributed across
14.
by paddybyers 7y ago
I can't speak for NATS streaming or Akka but it does look like liftbridge can fit that niche very well, depending on what features and semantics you need. Your services that publish can be assured that a message has been persisted to a