4 ms·

When you don't need transactions, don't have a cache invalidation problem, and are querying read-only data, then this architecture - or really any architecture

When you don't need transactions, don't have a cache invalidation problem, and are querying read-only data, then this architecture - or really any architecture that takes advantage of what makes HTTP scalable, mostly idempotent, cacheable responses to GETs - makes sense.

endorphone 9y ago
I do think it is a bit disingenuous that the author compares this to a classic web application and its data needs, when the needs here are so trivial. It is very well designed for what it does (the security needs of such a checker almost dictates the design), but is a model usable by very few applications. As an aside, the article talks a bit about Brotli and it's worth noting that Brotli is nothing more than LZ77 with a dictionary pre-seeded with a 119KB static dictionary of commonly seen web text. It is of course going to be fantastic for compressing an HTML document, where much of the content is verbose and common, but would do nothing above gzip for the hash result data. I would be surprised if it yielded a single byte of savings in that case. Brotli is supported by most browsers as it was snuck into the WOFF 2.0 standard, so browsers that support the new web font standard automatically have to support Brotli. https://dennisforbes.ca/index.php/2016/01/28/eat-your-brotli-revisiting-why-you-should-use-nginx-in-your-solutions/ https://dennisforbes.ca/index.php/2016/01/28/eat-your-brotli...
- cm2187 9y ago
  But it looks like IIS doesn't support brotli yet. Which also means it is probably not supported in azure either.
- tjoff 9y ago
  Depends on whether you compare this to what a classic web application should be doing versus what it actually does.
byefruit 9y ago
Not to mention that the dataset is relatively small. A 16GB of ram server could basically serve responses sub-millisecond at line rate for like $25/month.
- Sevii 9y ago
  Where are you getting 16GB ram for $25 a month? Would be pretty handy.
  - byefruit 9y ago
    https://www.hetzner.com/cloud https://www.hetzner.com/cloud has 16GB for $20 https://www.scaleway.com/pricing/ https://www.scaleway.com/pricing/ has 16GB just over $20
  - jackweirdy 9y ago
    A Hetzner CX41 is 16GB RAM @ €15.90/mo (about 18 usd) https://www.hetzner.com/cloud https://www.hetzner.com/cloud
  - moviuro 9y ago
    I currently have 2TB HDD, 16GB RAM, infinite bandwidth (100Mbps U/D) for 19.19€/month IIRC at Kimsufi [0] [0] https://www.kimsufi.com https://www.kimsufi.com
    - eropple 9y ago
      And that pitches out the window fault tolerance or replicability unless nontrivial developer work is dumped into it. If the disk goes farming in your Kimsufi instance, you are looking at a bad day.
      - moviuro 9y ago
        That really wasn't the point of my reply. Sure, if the machine dies, my services die. But it's still dirt cheap.
        eropple 9y ago
        A dirt bike is cheap, too. It's not a car. It's definitely not a good car. It doesn't have much to help you when you hit a tree.

endorphone 9y ago

I do think it is a bit disingenuous that the author compares this to a classic web application and its data needs, when the needs here are so trivial. It is very well designed for what it does (the security needs of such a checker almost dictates the design), but is a model usable by very few applications. As an aside, the article talks a bit about Brotli and it's worth noting that Brotli is nothing more than LZ77 with a dictionary pre-seeded with a 119KB static dictionary of commonly seen web text. It is of course going to be fantastic for compressing an HTML document, where much of the content is verbose and common, but would do nothing above gzip for the hash result data. I would be surprised if it yielded a single byte of savings in that case. Brotli is supported by most browsers as it was snuck into the WOFF 2.0 standard, so browsers that support the new web font standard automatically have to support Brotli. https://dennisforbes.ca/index.php/2016/01/28/eat-your-brotli-revisiting-why-you-should-use-nginx-in-your-solutions/ https://dennisforbes.ca/index.php/2016/01/28/eat-your-brotli...

cm2187 9y ago
But it looks like IIS doesn't support brotli yet. Which also means it is probably not supported in azure either.
tjoff 9y ago
Depends on whether you compare this to what a classic web application should be doing versus what it actually does.

byefruit 9y ago

Not to mention that the dataset is relatively small. A 16GB of ram server could basically serve responses sub-millisecond at line rate for like $25/month.

Sevii 9y ago
Where are you getting 16GB ram for $25 a month? Would be pretty handy.
- byefruit 9y ago
  https://www.hetzner.com/cloud https://www.hetzner.com/cloud has 16GB for $20 https://www.scaleway.com/pricing/ https://www.scaleway.com/pricing/ has 16GB just over $20
- jackweirdy 9y ago
  A Hetzner CX41 is 16GB RAM @ €15.90/mo (about 18 usd) https://www.hetzner.com/cloud https://www.hetzner.com/cloud
- moviuro 9y ago
  I currently have 2TB HDD, 16GB RAM, infinite bandwidth (100Mbps U/D) for 19.19€/month IIRC at Kimsufi [0] [0] https://www.kimsufi.com https://www.kimsufi.com
  - eropple 9y ago
    And that pitches out the window fault tolerance or replicability unless nontrivial developer work is dumped into it. If the disk goes farming in your Kimsufi instance, you are looking at a bad day.
    - moviuro 9y ago
      That really wasn't the point of my reply. Sure, if the machine dies, my services die. But it's still dirt cheap.
      - eropple 9y ago
        A dirt bike is cheap, too. It's not a car. It's definitely not a good car. It doesn't have much to help you when you hit a tree.