91–100 of 119 posts
Is it worthwhile to explore Clojure for web-dev seriously or more as a toy?
Is there a Clojure/Clojurescript tutorial similar to the Hartl Rails tutorial? I have amassed quite a few Clojure books, but find the easiest way to learn is to build.
We deploy distributed, multi-language, centrally Lisp/SBCL servers as well. A few specifics that I'd point out: Many of SBCL's optimizations are fine grained selectable, using internal SB-* declarations. I know I was at least able to turn off all optimizations for debug/disasm clarity, while specifically enabling tail recursion so that our main loop wouldn't blow up the stack in that build configuration. These aren't…
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I don't know how they do it, but I have run several Lisp production systems. I use CCL, which has a really fast compiler. So I just load the code from source. The deployment process then becomes: git pull, quit and restart Lisp. (The ccl-init file loads the code.)
And in that case how do you handle the monitoring of the system?
Very informative. Thank you. Anyone here has any experience with the GCs of Allegro or LispWorks or any other commercial Lisp implementations?
LispWorks has a lot of features in its GC. Years ago it was used in a demanding telco application, an ATM switch. It was also used on a space mission experiment. Generally the runtime is very very nice. Franz Inc uses Allegro CL in a large database. They tuned the GC quite a bit for that. But there were also other GC demanding applications on Allegro CL, for example in CAD and 3D design. They are now working on a con…
Slightly off-topic, but does anybody know of a kind of "LISP Challange" set? I recently started the Matasano challenges[0] and I found them really well-suited to my style of learning (learning by doing and expanding by reading relevant material, enabled by my own internal motivation). Is there anything like that that has a relatively small set of condensed yet rich challenges that demonstrate key elements from LISPy…
Apparently they use "JVM languages", JavaScript, Python, Go, Lisp and Erlang in production. I may be in the minority, but that would drive me mad. I assume they're not routinely jumping between those stacks multiple times a day, but even so is there really that much benefit that it's worth keeping track of how to do things in that many different environments?
Since "proper service encapsulation" is mentioned, it may be that each team uses whatever they like, and as long as your component speaks http you don't have to look at what other components are doing.
Wow. I can't ever remember reading about a consumer-facing app using Common Lisp. Ever.
Good lord, I would go insane if I ran into a bug like this: "We've built an esoteric application (even by Lisp standards), and in the process have hit some limits of our platform. One unexpected thing was heap exhaustion during compilation. We rely heavily on macros, and some of the largest ones expand into thousands of lines of low-level code. It turned out that SBCL compiler implements a lot of optimizations that a…
I dont really understand the downvotes... I agree with you would go nuts. My two cents, if your macro is expanding to thousands of lines of code, your doing something wrong I think. I would expect Macros to expand out to a few lines of code which might have function calls that themselves may contain however many lines of code... but expanding to thousands of lines INLINE via macros seems wrong.
And before anyone jumps on me -- I have 35 years of Zetalisp and Common Lisp experience and have written some pretty hairy sets of macros. There might turn out to be no easy way to make the expansions smaller, but there's nothing wrong with asking the question.
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Yes, exactly. (And no worries about rookie questions. That's how people become non-rookies.) In my case, I run the REPL using screen so I can go back to it for debugging if I need to. But you can also run "headless", without a REPL at all if you want.
How do you deal with existing connections to the Lisp service when you want to deploy? e.g. remove from load balancer, wait up to n minutes for connections to drain?, git pull, quit, restart Lisp, re-add to load balancer. ?
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I don't understand the question. Once it's running, it's like any other server, and you monitor it like you would any other server written in any other language.
Speculation here, but based on the context, I think the question is: Some daemon-izer solutions will monitor the daemon and e.g. restart it if it's unresponsive. How do you handle this slash how is this handled in the Common Lisp world?