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Let’s learn Erlang and fix a bug on a CouchDB Cluster

robert-kowalski.de

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Re: Let’s learn Erlang and fix a bug on a CouchDB Cluster

#11

Post by sravfeyn »

616c wrote: post #4

I always have loved CouchDB from a far, and every time I see it here and elsewhere in these contexts, I say I will learn Erlang and really dive deep it into it. As a young know-nothing developer, a few years ago, their NoSQL Web-DB of the future elevator pitches seemed amazing. I know the downsides have been oft-repeated here, but does anyone use it? Also do people here use it without JS, and use like pure Erlang-dri…

We use it in production and it's open-source https://github.com/dimagi/commcare-hq

Re: Let’s learn Erlang and fix a bug on a CouchDB Cluster

#12

Post by wcummings »

flying_whale wrote: post #7

This looks promising. Will try and go through the entire thing. On a similar note about learning Erlang, can't stress how well written http://learnyousomeerlang.com/content is. Really sets the standards of how tutorials to learn a new language should be.

I preferred Erlang Programming [1] to LYSE.

http://shop.oreilly.com/product/9780596518189.do

Re: Let’s learn Erlang and fix a bug on a CouchDB Cluster

#13

Post by 616c »

sravfeyn wrote: post #11
616c wrote: post #4

I always have loved CouchDB from a far, and every time I see it here and elsewhere in these contexts, I say I will learn Erlang and really dive deep it into it. As a young know-nothing developer, a few years ago, their NoSQL Web-DB of the future elevator pitches seemed amazing. I know the downsides have been oft-repeated here, but does anyone use it? Also do people here use it without JS, and use like pure Erlang-dri…

We use it in production and it's open-source https://github.com/dimagi/commcare-hq

I skimmed your work and starred the project on Github. Will definitely come back to this later.

Re: Let’s learn Erlang and fix a bug on a CouchDB Cluster

#14

Post by rubiquity »

616c wrote: post #4

I always have loved CouchDB from a far, and every time I see it here and elsewhere in these contexts, I say I will learn Erlang and really dive deep it into it. As a young know-nothing developer, a few years ago, their NoSQL Web-DB of the future elevator pitches seemed amazing. I know the downsides have been oft-repeated here, but does anyone use it? Also do people here use it without JS, and use like pure Erlang-dri…

CouchDB is a great database. It unfairly got a bad rap for performance/scaling due to the client libraries (I know Ruby for sure) being written so poorly. I've used it on a few projects with great success. I'm hoping I can try out clustering features in 2.0 sometime soon.

Re: Let’s learn Erlang and fix a bug on a CouchDB Cluster

#15

Post by rdtsc »

616c wrote: post #4

I always have loved CouchDB from a far, and every time I see it here and elsewhere in these contexts, I say I will learn Erlang and really dive deep it into it. As a young know-nothing developer, a few years ago, their NoSQL Web-DB of the future elevator pitches seemed amazing. I know the downsides have been oft-repeated here, but does anyone use it? Also do people here use it without JS, and use like pure Erlang-dri…

Use and love it. I don't know of any other databases that handle master-master replication so nicely. Few handle crash-only design as well (that is using append-only files such that a hard crash will not corrupt the data).

And BTW IBM/Cloudant is supporting a lot of development of CouchDB and 2.0 will be even more awesome -- clustering, MongoDB-like query language, a new and even better web viewer/console and many other goodies.

Re: Let’s learn Erlang and fix a bug on a CouchDB Cluster

#16

Post by emptyflask »

616c wrote: post #4

I always have loved CouchDB from a far, and every time I see it here and elsewhere in these contexts, I say I will learn Erlang and really dive deep it into it. As a young know-nothing developer, a few years ago, their NoSQL Web-DB of the future elevator pitches seemed amazing. I know the downsides have been oft-repeated here, but does anyone use it? Also do people here use it without JS, and use like pure Erlang-dri…

We use it in production, but are migrating away from it for some projects since that data is better suited for a relational DB. Some developers were too quick to jump onto the NoSQL bandwagon a few years ago.

For certain uses it's great, once you've wrapped your head around writing map/reduce views. It really shines when you need to provide a read-heavy JSON backend.

I've never written views in Erlang (actually, I've opted for higher abstraction and used Coffeescript), but now that I have a little functional programming experience with Haskell, I'd like to try it out.

Re: Let’s learn Erlang and fix a bug on a CouchDB Cluster

#17

Post by raphaelss »

kriro wrote: post #9

I like Erlang and that's why I clicked on the link but independent of language I have to say the "let's fix a bug together" approach is a pretty cool tutorial format which I hadn't seen before. It's almost a more valuable takeaway to think about this than the actual content (for me). Interesting way for someone familiar with a language to find good tutorial ideas (just wade through some project and diff some patches)

I agree. One place I had seen this approach before was Russ Cox's "A Tour of the Acme Editor" video[1]. He fixes an issue in a go library towards the end of the video as a workflow demonstration.

[1] https://www.youtube.com/watch?v=dP1xVpMPn8M

Re: Let’s learn Erlang and fix a bug on a CouchDB Cluster

#19

Post by flying_whale »

calgoo wrote: post #10
flying_whale wrote: post #7

This looks promising. Will try and go through the entire thing. On a similar note about learning Erlang, can't stress how well written http://learnyousomeerlang.com/content is. Really sets the standards of how tutorials to learn a new language should be.

Check out the book that was created based on the tutorials: Learn you some Erlang for the greater good

Definitely, I shall!
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