Re: Storing data on web server with Clojure
Keep in mind that the Heroku file system is a little "funky". Writing things there is not like you're used to with your local system or with a VPS or dedicated server. It's ephemeral and those files will disappear during certain events. I agree with the other Sean, that if the data is small and simple and you can just hold onto it in memory as Clojure data structures and serialize it to disk, that can be a fine approach (seems like an unusual case), but with Heroku, it's all about getting persistent data off the dyno and into external permanent storage. That's usually a hosted DB solution like Postgres, Redis, Mongo, CouchDB, etc. but if you don't have the complexity to justify a full DB, even a simple one like Mongo or Couch, then you should probably look into serializing your data structures as EDN into/out of redis key/values or an S3 bucket. Cheers, A different Sean On Wednesday, January 1, 2014 4:07:11 AM UTC-5, curiousGuy wrote: > > I recently got started with Heroku and Clojure. They provide an optional > SQL database for handling data, but it is not enabled by default. I'm > wondering how much sense it makes to use SQL on a Clojure environment, vs > just using sequence types within the language to store data and backing > them up as writes out to a file, then reading them back in when necessary? > I suppose for very large data stores, this is not ideal as you'd have a lot > of data in memory. > > I'm coming from a PHP/MySQL background and am quite new to Clojure so I > don't want to shoot myself in the foot by quickly adopting old habits > rather than embracing more idiomatic approaches. Any advice, or anyone > actively using data in the cloud with Clojure care to comment? > -- -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups "Clojure" group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: Storing data on web server with Clojure
I'd say it's really about how you want to interact with the data. If your pattern of interaction suits a database, use one. If you just want to store / load data structures and do everything in memory, do that instead. I use MySQL and MongoDB extensively via Clojure for a complex Internet dating platform so I'm pretty comfortable using databases with Clojure. Disclosure: I maintain Clojure's java.jdbc contrib library and I'm the primary committer on CongoMongo, a Clojure wrapper for MongoDB, so I'm probably more inclined toward those solutions than other Clojurians might be :) Sean On Wed, Jan 1, 2014 at 1:07 AM, curiousGuy wrote: > I recently got started with Heroku and Clojure. They provide an optional SQL > database for handling data, but it is not enabled by default. I'm wondering > how much sense it makes to use SQL on a Clojure environment, vs just using > sequence types within the language to store data and backing them up as > writes out to a file, then reading them back in when necessary? I suppose > for very large data stores, this is not ideal as you'd have a lot of data in > memory. > > I'm coming from a PHP/MySQL background and am quite new to Clojure so I > don't want to shoot myself in the foot by quickly adopting old habits rather > than embracing more idiomatic approaches. Any advice, or anyone actively > using data in the cloud with Clojure care to comment? > > -- > -- > You received this message because you are subscribed to the Google > Groups "Clojure" group. > To post to this group, send email to clojure@googlegroups.com > Note that posts from new members are moderated - please be patient with your > first post. > To unsubscribe from this group, send email to > clojure+unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/clojure?hl=en > --- > You received this message because you are subscribed to the Google Groups > "Clojure" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to clojure+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/groups/opt_out. -- Sean A Corfield -- (904) 302-SEAN An Architect's View -- http://corfield.org/ World Singles, LLC. -- http://worldsingles.com/ "Perfection is the enemy of the good." -- Gustave Flaubert, French realist novelist (1821-1880) -- -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups "Clojure" group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Storing data on web server with Clojure
I recently got started with Heroku and Clojure. They provide an optional SQL database for handling data, but it is not enabled by default. I'm wondering how much sense it makes to use SQL on a Clojure environment, vs just using sequence types within the language to store data and backing them up as writes out to a file, then reading them back in when necessary? I suppose for very large data stores, this is not ideal as you'd have a lot of data in memory. I'm coming from a PHP/MySQL background and am quite new to Clojure so I don't want to shoot myself in the foot by quickly adopting old habits rather than embracing more idiomatic approaches. Any advice, or anyone actively using data in the cloud with Clojure care to comment? -- -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups "Clojure" group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
