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| <levelbot> | [npm] [email protected] <http://npm.im/polyclay>: a schema-enforcing model class for node with optional key-value store persistence (@ceejbot) |
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| 04:31:35
| <mbalho> | rvagg: i forget, what was your opinion on making levelup do less buffer/string specific checks so that i can make it work in the browser? |
| 04:56:20
| <mbalho> | nsa presentation on graph data http://www.pdl.cmu.edu/SDI/2013/slides/big_graph_nsa_rd_2013_56002v1.pdf |
| 04:56:40
| <mbalho> | "Distributed hkey, valuei repositories |
| 04:56:41
| <mbalho> | Much better for storing a distributed, dynamic graph than a |
| 04:56:41
| <mbalho> | distributed filesystem like HDFS." |
| 04:56:58
| <mbalho> | "Google BigTable paper inspired a small group of NSA researchers |
| 04:56:59
| <mbalho> | to develop an implementation with cell-level security" |
| 04:56:59
| <mbalho> | hah |
| 04:57:08
| <mbalho> | Accumulo, Open-sourced in 2011 under the Apache Software Foundation |
| 05:30:33
| <rvagg> | mbalho: my opinion.. is... that I hope we can expose the encoding stuff so that it can be more easily replaced |
| 05:30:44
| <rvagg> | like this: https://github.com/nharbour/byteup but easier and cleaner |
| 05:31:01
| <rvagg> | allowing you to replace the buffer stuff with that browser compatible buffer lib that I can't remember the name of |
| 05:31:51
| <mbalho> | rvagg: chrisdickinson/bops |
| 05:31:57
| <eugeneware> | rvagg: yeah it would be nice if the levelup API made it a bit easier to put in your custom codecs without having to modify the utils stuff directly. |
| 05:32:09
| <mbalho> | rvagg: ok im willing to do work on this, im at a point where i need to get levelup working in the browser |
| 05:32:24
| <eugeneware> | typedarrays? |
| 05:32:38
| <mbalho> | eugeneware: check that repo |
| 05:32:53
| <rvagg> | eugeneware, mbalho: it ought to not be too difficult to just expose that on individual dbs, the problem is that it needs 3 things: encode, decode and a flag that indicates whether it needs to request a buffer or a string from leveldown on get/iterators |
| 05:33:20
| <rvagg> | https://github.com/rvagg/node-levelup/issues/51 |
| 05:33:22
| <rvagg> | discuss |
| 05:33:43
| <rvagg> | or communicate via pull request if that's your preferred discussion language |
| 05:34:08
| <eugeneware> | :-) |
| 05:34:38
| <rvagg> | so just to reiterate, the problem with the levelup/leveldown interaction is that leveldown needs to know for each get operation whether it needs to return as a buffer or as a string, if it can return a buffer then it should be cheaper |
| 05:34:45
| <mbalho> | rvagg: didnt we discuss something like a way to tell levelup to stop messin with shit |
| 05:34:58
| <rvagg> | so even though you may not care for the browser, any extension mechanism here needs to take that into account |
| 05:35:44
| <rvagg> | um, I'm not sure; there was a suggestion to replace Buffers completely with bops but unless I see benchmarks that show that there isn't a performance cost in that then I'm not jiggy with it |
| 05:36:20
| <mbalho> | yea |
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| <dominictarr> | juliangruber: is this line is list server correct: |
| 10:17:02
| <dominictarr> | var server = Server(db.sublevel('cool').sublevel('cats')); |
| 10:17:27
| <dominictarr> | because after that you do var dbServer = Server(db); |
| 10:17:28
| <dominictarr> | http.createServer(dbServer.serve.bind(dbServer)).listen(8000); |
| 10:17:32
| <juliangruber> | dominictarr: yes |
| 10:17:41
| <juliangruber> | you start the http server on the whole db |
| 10:17:49
| <dominictarr> | what does Server(db.sublevel(…)) do? |
| 10:17:49
| <juliangruber> | but expose only a sublevel to a client / plugin |
| 10:18:11
| <juliangruber> | Server(db.sublevel('…')).createWriteStream('my-file.png') |
| 10:18:15
| <juliangruber> | you can store files in there |
| 10:19:07
| <juliangruber> | you can basically store files and then serve them over http |
| 10:19:24
| <dominictarr> | right - I understand that it's about serving files |
| 10:19:41
| <dominictarr> | what is confusing me is how it relates to sublevel |
| 10:20:11
| <dominictarr> | like - just passing it the sublevel once should be enough information |
| 10:20:57
| <juliangruber> | when using sublevels you get authentication for free |
| 10:20:59
| <juliangruber> | so imagine |
| 10:21:03
| <juliangruber> | one user is logged in |
| 10:21:17
| <juliangruber> | he then can do whatever he wants with his level-serve instance |
| 10:21:21
| <juliangruber> | because it is tied to a sublevel |
| 10:21:24
| <juliangruber> | not the whole db |
| 10:21:29
| <juliangruber> | the server however server the whole db |
| 10:21:37
| <juliangruber> | so when a user stores something in his sublevel |
| 10:21:46
| <juliangruber> | and then calls server.url('my-file.png') |
| 10:21:56
| <juliangruber> | the resulting url will be /files/<username>/my-file.png |
| 10:23:22
| <dominictarr> | sure - but that isn't my concern |
| 10:24:14
| <dominictarr> | this line https://github.com/Wayla/level-serve/blame/master/README.md#L52 |
| 10:24:14
| <juliangruber> | what is your concern then? |
| 10:24:41
| <dominictarr> | how come the server = Server(…); // the var server is never used again? |
| 10:24:51
| <dominictarr> | oh no |
| 10:25:25
| <dominictarr> | oh - so you create two servers, but you use one only to insert a file! |
| 10:25:48
| <juliangruber> | yes |
| 10:25:50
| <juliangruber> | :) |
| 10:25:51
| <juliangruber> | ok |
| 10:25:54
| <dominictarr> | then you create a server around the whole database |
| 10:25:56
| <juliangruber> | i should state that more clearly |
| 10:26:25
| <dominictarr> | it looked to me like the two calls to Server(…) where communicating some mysterious way |
| 10:26:43
| <dominictarr> | (and they where! by inserting stuff into the database!) |
| 10:27:02
| <juliangruber> | mhm |
| 10:27:07
| <juliangruber> | so basically one is read only |
| 10:27:17
| <juliangruber> | and the other one is write-enabled but only to a certain section |
| 10:27:23
| <dominictarr> | the global one |
| 10:28:16
| <dominictarr> | what if you just mapped directories to sublevel? (or the bottom directories?) |
| 10:28:59
| <juliangruber> | sublevels are directories in that case |
| 10:29:16
| <juliangruber> | updated the https://github.com/Wayla/level-serve/commit/f0ce63e3bda571297b8b93f20eb19c9d7e4a3562 |
| 10:29:22
| <juliangruber> | <3 sublevel |
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| <no9> | FYI https://twitter.com/leveldbtweets |
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| <rvagg> | heh, nice |
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| <no9> | ty |
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| * rvagg | topic: there is no topic |
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| <piklu> | wazz up guys |
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| <piklu> | anybody here? |
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