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#mongodb logs for Sunday the 17th of May, 2015
[01:08:30] <Boomtime> louie_louiie: what do you mean the mongoexport command doesn't work? mongoexport is a binary contained in the mongodb-org-tools package
[01:12:18] <louie_louiie> the bash command for 'mongoexport' cannot be found, however the command 'mongo' is found
[01:12:55] <Boomtime> for reference here is the ubuntu package names: http://docs.mongodb.org/manual/tutorial/install-mongodb-on-ubuntu/#packages
[01:16:41] <StephenLynx> GothAlice you know anyway to detect the last time a file was modified on gridfs besides unlinking it and rewriting?
[01:19:31] <louie_louiie> so what happened was i installed node/mongodb using the proctocls found here:
[01:22:23] <louie_louiie> http://github.com/SIB-Colombia/dataportal-explorer/wiki/How-to-install-node-and-mongodb-on-Amazon-EC2
[01:22:40] <louie_louiie> however the command used is sudo yum -y install mongo-10gen-server mongodb-org-shell
[02:37:21] <styles> I'm running mongodb locally on Archlinux (the offical package in pacman), but I don't see mongoimport or mongoexport
[03:06:23] <Boomtime> you need this: https://www.archlinux.org/packages/community/x86_64/mongodb-tools/
[04:04:32] <sabrehagen> hey guys, i'm having trouble connecting to my mongodb 3 instance. my config file has auth=true and bind_ip=0.0.0.0 on default port (27017). i can connect via the mongo shell on the box and auth to my database using db.auth() but using the same credentials in robomongo i can't why might this be? http://i.imgur.com/1ktF419.png
[10:26:45] <donCams> so I'm doing a real-time analytics app. I created a sort of tracking pixel. wondering if I should insert each event to mongodb and just listen to the oplog for the real-time visualization or separately listen to the event for the real-time visualization?
[16:30:24] <loadh> so a client might have a device in the shop's time zone but the device is still in another time zone (if they traveled to tht country say)
[16:34:01] <loadh> whereas if i compute it server side, the the "is open" or "is closed" string will always be correct
[17:22:27] <johnnyrs> Hi. Quick question that I'm hoping you can answer: what is a driver for MongoDB in laymen's terms. I know each language can have one to many different drivers for MongoDB, but I'm not sure what exactly they do. Thanks for your help!
[17:23:39] <StephenLynx> they perform the low level operations on the database by providing a high-level interface.
[17:24:14] <StephenLynx> among other things. the node.js driver gives you a connection bool by default, for example
[17:24:41] <StephenLynx> they also resolve dbrefs and perform the multiple queries needed to obtain the correct results.
[17:26:25] <StephenLynx> it implements a high-level standard interface for that kind of hardware so other applications can easily interact with the hardware.
[17:56:13] <jamiel> For a DB 60 million rows, where users can do many filtered queries, recommended hardware be 16GB RAM + ?
[20:05:41] <jamiel> The documentation for index intersection states "involves two indexes; however, MongoDB can employ multiple/nested index intersections to resolve a query." but it doesn't elaborate on the performance implications or how that relates to sorting. If I'm querying on 5 fields and sorting on one, if I have all 6 fields indexed individually will MongoDB 3.0 be
[20:05:41] <jamiel> smart enough to plan correctly and use all indexes in groups of two? Or is index intersection purely for queries of 2 fields and we should use compound indexes for the rest?
[20:46:37] <skullcrasher> how do I track schema changes properly? Is it possible with mongodb itself or do I depend on other tools (using nodejs here)
[21:07:58] <girb1> moveChunk directory consuming huge space on a sharded cluster is it safe to remove the directory ?
[22:12:07] <nodeNoob> I am trying to use bluebird promises to map findOne() to console.log everything at once
[22:18:02] <StephenLynx> I am familiar enough to know it is buggy and cripples performance an I never hesitate to tell people its should be avoided at all costs.
[22:20:24] <StephenLynx> I would also advice against promises until they don't have a crippling performance and are on ES6.
[22:27:58] <StephenLynx> notice that inside the callback I do nothing but check simple conditions and in each condition I just write a single line of code.
[22:30:22] <nodeNoob> "Use 2 spaces for indenting your code and swear an oath to never mix tabs and spaces - a special kind of hell is awaiting you otherwise."
[23:05:43] <StephenLynx> keep your dependencies to a minimum, I personally just use dependencies to handle with protocols. like db drivers, email, DOM, websockets
[23:08:13] <StephenLynx> write the best documentation possible for stuff that is meant for external interaction.
[23:09:29] <StephenLynx> don't hesitate to put load on the client. keep in mind the client handles code for a single user, the server for all users.
[23:10:46] <StephenLynx> is not like runtime environments where you will just lose some performance most of the time.
[23:11:31] <nodeNoob> I basically need to record users (drivers, fleetmanagers), jobs, truck states and truckdata of each truck every 300ms (speed, location). The app is supposed to be used as live monitoring, job assigning, HQ-Truck chat and notifications, and report generating (average fuel consumption)
[23:11:34] <StephenLynx> not with databases. there are multiple scenarios where each type of database might suit you better of completely screw you.
[23:13:13] <nodeNoob> I meant in the way that most articles or tutorials i read initially involved mongodb
[23:14:12] <StephenLynx> anything that falls into the taste of the web development community is like that.
[23:15:15] <StephenLynx> anyone that I find that is like me, a general developer that started doing web development along with previous experiences shared this opinion.
[23:15:28] <nodeNoob> If i only had to record truckdata and just display the most recent information on the screen live, i think mongodb would have been perfect
[23:15:47] <StephenLynx> but since you told me you have a strong relational need, that is not the case.
[23:17:45] <nodeNoob> Oh yes transactions. I have some nasty flaws on that as i haven't covered them at all
[23:18:04] <StephenLynx> without failure, expect nothing but a clueless idiot if they promote stuff like this.
[23:18:40] <StephenLynx> especially from the community. web development is the single worst community in IT.
[23:20:30] <StephenLynx> they don't know the single basics of HTTP but think they know stuff because they have been playing with their crayons for over 15 years.
[23:21:00] <StephenLynx> didn't know you could just open hyper text files sitting on your HD on your browser.
[23:22:09] <StephenLynx> and every single person I met that did nothing but web development were the same, or worse.
[23:24:17] <StephenLynx> so not only they always add immense amounts of bloat to their projects, but they never learn the basics of the technologies.
[23:25:04] <StephenLynx> I saw once a framework of sorts that depended on a dozen or 20, don't remember, of modules.
[23:25:24] <StephenLynx> people think that just because they are writing few lines, that their program are executing few commands.
[23:25:47] <StephenLynx> they think a dependency works like magic, you just add, call a function and thats it.
[23:26:36] <StephenLynx> and they will always defend said bloat, they will talk like its impossible to develop without them without never trying to work without them.
[23:27:01] <StephenLynx> they are probably too busy blogging over starbucks with their macs and buying skinny jeans.
[23:27:39] <StephenLynx> so if you want to be a good web developers, first of all you have to avoid the community like the plague.
[23:28:13] <nodeNoob> StephenLynx: this is being very educational thanks for the rant and good pointers