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rojabuck

45 karma · joined March 20, 2011

obsessed with crafting software, building teams and being CTO at riverford
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rojabuck··on UK Government Confirm Move to Force ISPs into Blocking “Adult” Sites
Please sign and share this petition:

https://petition.parliament.uk/petitions/173407/sponsors/aeX...

It reads:

Do not censor the internet. Please rethink forcing ISPs to Block “Adult” Sites.

As part of the Digital Economy Bill 2016-17 the government has officially announced that Mobile and fixed line broadband providers in the United Kingdom will be forced to block all “adult” websites. This is a slippery slope which can be used to force ever increasing censorship on undesirable views.

The bill also introduces a new power that forces payment services (e.g. VISA, Mastercard) to withdraw support from non-compliant sites. The legislation uses the term “adult content” (i.e. open to interpretation and mission creep.) Dating, self-harm support, social networks, different political views and medical sites have historically been tagged as “adult content“. More at: http://www.ispreview.co.uk/index.php/2016/11/uk-government-c...

rojabuck··on Ask HN: How much do you make in London?
(kind of off topic) considering a move? considered riverford.co.uk? if so fire me your CV...
rojabuck··on 14-year-old startup founder turned down a $30M buyout offer
The idea of charging someone for a plaster when they need it feels totally alien to me.
rojabuck··on Show HN: Forestry.io – A better way to host static websites (demo)
Take a look at http://webhook.com as they have a similar offering that may give some inspiration.
rojabuck··on [dead]
I'll just leave this here... http://tech.just-eat.com/jobs/
rojabuck··on Isambard Kingdom Brunel
I can see the SS Great Britain out of my window as I type this very reply :)

Such an utterly wonderful piece of engineering, the combination of so many advances from it's iron construction to its rotary screw propeller.

rojabuck··on RethinkDB 1.6 is out: regex matching, new array operations, random sampling
Is there anything in the roadmap for geospatial index support?

Our major usecase for mongo is returning entries in ordered distance from a location and / or within some radius of a location.

Support for such queries would be seriously useful.

rojabuck··on NSA has direct access to tech giants' systems for user data, secret files reveal
It isn't surprising, but it is worth talking about.

I subscribe to "nothing to hide" but it would be nice to, at least, have some notification and callback over who had access to my personal details.

I don't really mid my information bing used to infer if pot-holes are more important to fix than water leaks. I do however object, without prior consent, for my details to be a way of supporting political movements /ideologies.

rojabuck··on Amazon DynamoDB – a Fast and Scalable NoSQL Database Service from AWS
I should have explained that my costs were calculated on a "per day" assumption. Thus the costs are for:

5000 x 60 x 60 x 24 = 432000000 Writes

50000 x 60 x 60 x 24 = 4320000000 Reads

(432000000/10000) x 0.01 = $432

(4320000000/10000) x 0.01 = $4320

Azure Total Cost For One Days Use: $4752

((5000/10) x 0.01) x 24 = $120

((50000/50) x 0.01) x 24 = $240

AWS Total Cost For One Days Use: $360

You are right that I don't take into account the bulk feature of azure reads & writes but this is down to bulk requests only being possible on a single partition at a time which in my personal experience (not exhaustive) is non-trivial to take advantage of.

rojabuck··on Amazon DynamoDB – a Fast and Scalable NoSQL Database Service from AWS
Would be interested in details about any with Strong Consistency, decent replication across fault areas, which get the same level of performance (single digit ms) at a cost equivalent to dynamodb.

Quite a lot can be done with smart use of hugely scalable simple key-value maps.

rojabuck··on Amazon DynamoDB – a Fast and Scalable NoSQL Database Service from AWS
The cost per transaction, performance & ease.

Reads per $0.01 = (50.60).60 = 180000

Writes per $0.01 = (10.60).60 = 36000

Assuming that you hit your usage is at 100% capacity then from a read prospective DynamoDB is half the price. Writes are much more expensive but many applications are heavily read oriented.

DynamoDB claims single digit millisecond reads, azure tables does not (from my experience.)

Azure tables have a maximum performance over a given partition table of 500 requests per second and over the whole account of 5,000 requests per second. DynamoDB does not state this.

http://blogs.msdn.com/b/windowsazurestorage/archive/2010/05/...

To put this into context:

Assume a system with 5000 writes per second and 50000 reads here are the costs:

AWS Reads: $240 AWS Writes: $120 Aws Total: $360

Azure Reads: $4320 Azure Writes: $432 Azure Total: $4752

Seems like quite a difference for a decent sized read heavy application.

rojabuck··on Amazon DynamoDB – a Fast and Scalable NoSQL Database Service from AWS
Fast, Consistent, Secure & Replicated.

Game changed.

rojabuck··on What's In A GIF
A clear & approachable piece of documentation. What a fantastic resource a library of such documents, for numerous major data formats, would be.
rojabuck··on Apache Thrift Library
Not to take away from thrift in any way but could you not do this already using any portable serialisation method? Json has c++ and JavaScript (de)serialisation implementations as does XML. Combined with a Rest-ful web service api surely it doesn't matter what the transport mechanism is?
rojabuck··on Offer HN: Free Maths Lessons
Given that the course starts in October I thought that a good old concerted effort on revision might get me past the need for MU123 (would be nice to aim for a 6 year degree not a 7 year one) now wondering if it is an incorrect assumption... I wonder if they would let me see some past papers from MU123 to make sure I followed it all (again, the hard work is never a problem it's the fear of not even being able to read the damn question!)
rojabuck··on Offer HN: Free Maths Lessons
You mention that your doing both 121 & 221 at the same time. When I was reading up about the course they recommended only doing this if you had A level (or above) and could commit 16 hours per week. How does that stack up to your experience? Does the course have a good staring gradient? I spend my life coding (in the finance industry) and am un-fazed by the mathematical challenges it throws up daily but am utterly petrified of starting out on the course (maybe combined?) and being presented with a sheet of impenetrable symbols and vast amounts of expected ability, knowledge of processes, terms etc... It's the notation and vocabulary, the superior knowledge of superior men, that worries me the most.
rojabuck··on Offer HN: Free Maths Lessons
I am just about to begin a part-time open university mathematics degree (mature student) as part of a process to get over my fear of mathematics. I have a GCSE in higher mathematics but sometime between being a school kid and starting a PhD I got the fear. I messed up 2 attempts at AS level, mostly due to other priorities of being a 17 year old, I mucked up my PhD due to the fear (who would have thought robotics & vision needed maths huh?) ignoring important papers simply because they were impenetrable to my maths reading skills. I am currently spending 2 hours a night reading through GCSE, AS & A level revision guides to prepare for the start of the university course, however any additional help would obviously be superb.