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News.YC improved - Expired links should be less common (ycombinator.com)
1 point by jmatt 5953 days ago | 3 comments


3 points by jmatt 5951 days ago | link

This post has some discussion on scaling problems that PG is having with news.arc and with continuations (on news.ycombinator.com). It's worth checking out and is relevant to both the future of arc and PG's current mind set when it comes to arc's web programming model.

I was surprised to find no responses from the core group of arc forum contributors.

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2 points by conanite 5951 days ago | link

Saving client state in closures/continuations is a continuous source of contention. Here's an old discussion: http://arclanguage.org/item?id=1455 , and a more recent one: http://arclanguage.org/item?id=7338

I like the "It's hard to beat closures for elegance" argument, but I haven't really tried the arc way for web apps yet. It's also true that over time we see higher-level languages win out over their lower-level counterparts despite initial objections about performance. So it might be that closures win eventually over initial objections about scalability. But I like readable urls, http://example.com/a?fn=fkg34lk doesn't really tell me anything.

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4 points by almkglor 5951 days ago | link

maybe something related to http://decenturl.com/ might help: http://www.reddit.com/r/programming/info/5zcbl/comments/

Edit: It might be useful to add an optional parameter in some of the link-creating stuff where the programmer can add some sort of "hint" which the base system will use, so instead of http://example.com/a?fn=fkg34lk you get http://example.com/a?fn=voteup_fkg34lk

Or possibly just "make it long" and just have the base system add a number if the id clashes: http://example.com/a?fn=voteup-maybe-something-related-to-3

So yes: closure links per se don't prevent decent url's, naive implementations of closure links do.

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