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[03:13:21] thehodge (~thehodge@2001:470:1f09:13a3:7c44:8b19:2083:8d86) left irc: Remote host closed the connection [03:13:46] thehodge (~thehodge@cpc5-seac20-2-0-cust310.7-2.cable.virginmedia.com) joined #redis. [03:18:14] thehodge (~thehodge@cpc5-seac20-2-0-cust310.7-2.cable.virginmedia.com) left irc: Ping timeout: 248 seconds [03:19:09] Garo_ (garo@kapsi.fi) joined #redis. [03:21:14] Hello. I'm thinking of storing 100M 50 byte strings and I need to multiget N (1..200) items of those. should I store all items inside one big Set, or each item separately, in terms of cpu and memory usage? [03:22:57] or into a Hash? [03:24:12] yo [03:24:16] are they unique? [03:24:32] the keys are, values are not [03:24:45] then you can't store them in a set [03:25:11] ah true. my bad. "Redis Sets have the desirable property of not allowing repeated members" [03:25:15] a hash would be fine. or a set of hashes, since 100M times 50 bytes might make a hash way too large [03:25:42] that's what I was also wondering that can the Hash data type support 100M items [03:27:00] the actual usage would be having a few (say 10 to 100) "data domains" where each have 100k to 100M items. All items across different data domains will have unique keys, so I can very easily to just store each item separately, but I'm wondering if I could benefit from storing the items on a Hash per data domain [03:35:00] sjonnet19 (625b67ab@gateway/web/freenode/ip.98.91.103.171) joined #redis. [03:38:28] kushal (~kdas@fedora/kushal) joined #redis. [03:38:35] Has anyone run redis on a ec2 micro instance with a very small dataset for sessions? I am attempting to do this but after a period of time my server session keep getting reset [03:39:37] Garo_: you might have better luck with 10 or 100 "domains" indeed [03:40:36] ron (~ron@unaffiliated/ron) left irc: Ping timeout: 240 seconds [03:41:35] drbobbeaty (~drbobbeat@38.98.137.29) joined #redis. [03:43:15] ron (~ron@unaffiliated/ron) joined #redis. [03:44:01] Wombert (~Wombert@dslb-092-074-121-251.pools.arcor-ip.net) joined #redis. [03:45:45] michel_v: thanks for your input. I'll do some benchmarkings anyway [03:49:58] nu7hatch_ (~cubox@r186-48-196-237.dialup.adsl.anteldata.net.uy) joined #redis. [03:51:47] nu7hatch (~cubox@r186-48-223-6.dialup.adsl.anteldata.net.uy) left irc: Ping timeout: 240 seconds [03:51:47] Nick change: nu7hatch_ -> nu7hatch [03:55:28] thehodge (~thehodge@81.168.48.4) joined #redis. [03:59:55] kushal (~kdas@fedora/kushal) left irc: Ping timeout: 255 seconds [03:59:59] nu7hatch_ (~cubox@r186-48-223-6.dialup.adsl.anteldata.net.uy) joined #redis. 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[05:08:29] hackband (~hackband@0x5359d382.cpe.ge-1-1-0-1104.bynqu1.customer.tele.dk) left irc: Ping timeout: 240 seconds [05:15:09] daniel_karlsson (~kardan@c83-254-118-140.bredband.comhem.se) left irc: Quit: daniel_karlsson [05:16:41] is there any estimate when redis-cluster will be available for use? I'm thinking how we should implement high availability for our redis master-slave -pair. [05:16:58] rurufufuss (~rurufufus@115-64-27-246.static.tpgi.com.au) joined #redis. [05:19:30] jscheel (~jscheel@c-71-228-204-205.hsd1.tn.comcast.net) joined #redis. [05:19:31] jscheel (~jscheel@c-71-228-204-205.hsd1.tn.comcast.net) left irc: Changing host [05:19:31] jscheel (~jscheel@drupal.org/user/116197/view) joined #redis. [05:23:02] unca (c269390d@gateway/web/freenode/ip.194.105.57.13) joined #redis. [05:23:15] unca (c269390d@gateway/web/freenode/ip.194.105.57.13) left irc: Client Quit [05:29:25] NetRoY (~NetRoY@115.110.26.37) joined #redis. 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[05:59:34] jscheel (~jscheel@c-71-228-204-205.hsd1.tn.comcast.net) left irc: Changing host [05:59:34] jscheel (~jscheel@drupal.org/user/116197/view) joined #redis. [06:04:05] xjiujiu (~quassel@218.77.14.195) joined #redis. [06:05:28] szaboat_ (~szaboat@pie.done.hu) left irc: Ping timeout: 255 seconds [06:06:34] Wombert (~Wombert@dslb-092-074-121-251.pools.arcor-ip.net) left irc: Read error: Connection reset by peer [06:06:37] Wombert (~Wombert@dslb-092-074-121-251.pools.arcor-ip.net) joined #redis. [06:06:39] brianseeders (~BS@108-216-88-132.lightspeed.bcvloh.sbcglobal.net) left irc: Ping timeout: 252 seconds [06:08:05] dougx (~doug@mail.virtuosa.co.za) left irc: Ping timeout: 240 seconds [06:10:58] elcuervo (~elcuervo@r186-48-255-65.dialup.adsl.anteldata.net.uy) joined #redis. [06:11:57] jscheel (~jscheel@drupal.org/user/116197/view) left irc: Quit: jscheel [06:12:51] thehodge (~thehodge@host109-157-255-32.range109-157.btcentralplus.com) left irc: Remote host closed the connection [06:13:22] thehodge (~thehodge@host109-157-255-32.range109-157.btcentralplus.com) joined #redis. [06:17:07] jscheel (~jscheel@c-71-228-204-205.hsd1.tn.comcast.net) joined #redis. [06:17:07] jscheel (~jscheel@c-71-228-204-205.hsd1.tn.comcast.net) left irc: Changing host [06:17:07] jscheel (~jscheel@drupal.org/user/116197/view) joined #redis. [06:17:27] thehodge (~thehodge@host109-157-255-32.range109-157.btcentralplus.com) left irc: Ping timeout: 240 seconds [06:31:22] agentzh (~agentz@nginx/adept/agentzh) left irc: Quit: Leaving. [06:36:20] yejjj (569844a6@gateway/web/freenode/ip.86.152.68.166) joined #redis. [06:36:26] Hello! [06:37:04] Could anyone please help me with a Redis scripting problem? [06:38:08] don't ask to ask, just ask :) [06:39:21] Ok, I am storing data in a sorted set (score = UNIX timestamp, data = message). I have a [06:45:07] _RedisBot joined #redis. [06:45:35] rhaen (~uli@pkgbox.de) joined #redis. [06:47:40] rittyan_ (~rittyan@2a02:6b8:0:40c:7aca:39ff:feb3:d779) joined #redis. [06:47:54] ZRANGE [set = every set value from separate set] 0 20 WITHSCORE - Must then rank all data, skim off top 20 (most recent, where sorted set SCORE = UNIX timestamp) [06:48:27] rittyan (~rittyan@2a02:6b8:0:40c:7aca:39ff:feb3:d779) left irc: Remote host closed the connection [06:48:35] jonesy (~jonesy@pool-173-71-115-162.cmdnnj.fios.verizon.net) left irc: Quit: Computer has gone to sleep. [06:50:06] p1d (~p1d@ns1.vonaffenfels.de) got netsplit. [06:50:06] rhaen_ (~uli@pkgbox.de) got netsplit. [06:50:07] jtoy_ (~rails@ec2-184-73-14-108.compute-1.amazonaws.com) got netsplit. [06:50:07] RedisBot (~RedisBot@66.220.2.180) got netsplit. 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[09:49:56] tjholowaychuk (~tjholoway@S010658b03565e6c6.gv.shawcable.net) left irc: Quit: Leaving... [09:51:29] Nick change: wmoss|away -> wmoss [09:53:06] dialtone (~dialtone@unaffiliated/dialtone) joined #redis. [09:53:35] Wombert_ (~Wombert@dslb-088-065-194-175.pools.arcor-ip.net) left irc: Ping timeout: 252 seconds [09:54:59] Wombert (~Wombert@dslb-088-065-198-166.pools.arcor-ip.net) joined #redis. [09:56:22] Nick change: wmoss -> wmoss|away [09:58:23] kushal (~kdas@fedora/kushal) left irc: Ping timeout: 245 seconds [09:58:43] Wombert_ (~Wombert@dslb-092-075-026-026.pools.arcor-ip.net) joined #redis. [09:59:27] Wombert (~Wombert@dslb-088-065-198-166.pools.arcor-ip.net) left irc: Ping timeout: 252 seconds [09:59:28] Nick change: Wombert_ -> Wombert [10:01:47] tjholowaychuk (~tjholoway@S0106000352031482.gv.shawcable.net) joined #redis. [10:01:49] tjholowaychuk (~tjholoway@S0106000352031482.gv.shawcable.net) left irc: Excess Flood [10:01:51] Wombert_ (~Wombert@dslb-088-065-201-199.pools.arcor-ip.net) joined #redis. [10:02:02] tjholowaychuk (~tjholoway@S0106000352031482.gv.shawcable.net) joined #redis. [10:02:42] deepthawtz (~deepthawt@c-71-202-101-2.hsd1.ca.comcast.net) left irc: Quit: Leaving... [10:03:48] Wombert (~Wombert@dslb-092-075-026-026.pools.arcor-ip.net) left irc: Ping timeout: 245 seconds [10:03:49] Nick change: Wombert_ -> Wombert [10:08:19] hahuang65 (~hahuang65@204.11.231.186.static.etheric.net) left irc: Quit: Textual IRC Client: http://www.textualapp.com/ [10:08:34] Nick change: wmoss|away -> wmoss [10:09:44] dribdrab (~dribdrab@70-36-146-235.dsl.dynamic.sonic.net) joined #redis. [10:15:21] anyone know of a hiredis package for ubuntu lucid? [10:18:17] seriously, it forces debhelper 8 and doesn't use DESTDIR for install. slap package maintainers [10:22:12] pharkmillups (~markphill@70-36-146-239.dsl.dynamic.sonic.net) joined #redis. [10:22:54] seppo0010 (~Adium@200.69.194.105) joined #redis. [10:26:12] seppo00101 (~Adium@200.69.194.105) joined #redis. [10:28:37] seppo0010 (~Adium@200.69.194.105) left irc: Ping timeout: 244 seconds [10:28:46] perezd_ (~derek@108-71-92-105.lightspeed.sntcca.sbcglobal.net) joined #redis. [10:31:20] perezd (~derek@108-71-92-105.lightspeed.sntcca.sbcglobal.net) left irc: Read error: Operation timed out [10:31:20] Nick change: perezd_ -> perezd [10:34:30] devdazed (~russ_nyc@static-96-239-59-191.nycmny.fios.verizon.net) joined #redis. [10:36:22] seppo00101 (~Adium@200.69.194.105) left irc: Read error: Connection reset by peer [10:38:42] seppo0010 (~Adium@200.69.194.105) joined #redis. 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[10:53:59] elcuervo_ (~elcuervo@r186-48-255-65.dialup.adsl.anteldata.net.uy) left irc: Remote host closed the connection [10:54:35] elcuervo (~elcuervo@r186-51-194-80.dialup.mobile.ancel.net.uy) joined #redis. [10:55:27] perezd (~derek@108-71-92-105.lightspeed.sntcca.sbcglobal.net) left irc: Remote host closed the connection [10:55:48] perezd (~derek@108-71-92-105.lightspeed.sntcca.sbcglobal.net) joined #redis. [11:08:47] rodrigovieira (~rodrigovi@187.59.112.87) joined #redis. [11:10:24] dribdrab (~dribdrab@70-36-146-235.dsl.dynamic.sonic.net) left irc: Remote host closed the connection [11:10:35] dribdrab (~dribdrab@70-36-146-235.dsl.dynamic.sonic.net) joined #redis. [11:10:40] __alex (~alex@g230195106.adsl.alicedsl.de) joined #redis. [11:13:13] seppo0010 (~Adium@200.69.194.105) left #redis. [11:21:38] Wombert (~Wombert@dslb-088-065-201-199.pools.arcor-ip.net) left irc: Ping timeout: 240 seconds [11:26:25] martincozzi (~martincoz@c-67-180-194-70.hsd1.ca.comcast.net) left irc: Quit: martincozzi [11:28:53] elcuervo_ (~elcuervo@r186-48-255-65.dialup.adsl.anteldata.net.uy) joined #redis. [11:30:22] elcuervo (~elcuervo@r186-51-194-80.dialup.mobile.ancel.net.uy) left irc: Read error: Connection reset by peer [11:32:45] so, when I daemonize redis and specify a pid file, I notice that it never writes the pidfile as expected... [11:32:49] could this be permissions related? [11:33:11] /var/run/redis.pid (default) is missing [11:37:36] what user does redis run as when you daemonize it ? [11:37:41] redis:redis [11:38:21] also: [6216] 20 Dec 19:38:07 # Failed saving the DB: Permission denied [11:38:28] data dir needs to be owned by that user i assume [11:38:35] lern2unix [11:38:42] seppo0010 (~Adium@200.69.194.105) joined #redis. [11:39:02] interestingly, I am pretty sure it is owned by redis :/ [11:39:12] most likely that user cannot write into /var/run/ . Perhaps you can solve this by making the redis user member of an appropriate group, some linuxes have a group that all the daemons belong to for writing to those places [11:46:30] _h0bbit (~vedang@59.95.22.139) joined #redis. [11:46:36] interestingly, it cannot write its db file [11:46:40] into a folder that it owns [11:46:43] odd :/ [11:47:45] nsalvo (~nsalvo@190.55.32.117) left irc: Quit: leaving [11:47:47] it is possible for permissions on a directory to be such that the owner of that directory cannot write to it. Also, check if your disk is mounted read-only due to a recent harddrive error (can you touch other files as other users) ? [11:49:21] daelious (~daelious@ip-12-157-188-198.kindredhealthcare.com) left irc: Quit: Leaving [11:51:41] martincozzi (~martincoz@209.66.114.6) joined #redis. [11:52:34] Wombert (~Wombert@dslb-092-075-000-114.pools.arcor-ip.net) joined #redis. [11:55:57] CoffeeIV: I can, yeah. [11:56:02] its just not able to save to the directory that it wants to [11:56:28] oh i see. [11:56:28] thehodge (~thehodge@2001:470:1f09:13a3:4989:7ed0:40e3:2efd) left irc: Remote host closed the connection [11:56:31] redis conf is just dumb [11:56:38] you specify filename and dir differently :( [11:56:39] ugahsdkjfasdjfh [11:56:41] okay. [11:57:29] seppo0010 (~Adium@200.69.194.105) left irc: Read error: Connection reset by peer [11:57:38] thehodge (~thehodge@cpc5-seac20-2-0-cust310.7-2.cable.virginmedia.com) joined #redis. [11:57:41] yay [11:57:42] it works [11:58:02] awesome [11:58:04] dribdrab_ (~dribdrab@70-36-146-235.dsl.dynamic.sonic.net) joined #redis. [11:59:58] seppo0010 (~Adium@200.69.194.105) joined #redis. 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[12:22:26] yejjj (5698472f@gateway/web/freenode/ip.86.152.71.47) joined #redis. [12:23:20] Anyone pleas help me with the following scenario? [12:23:21] ZRANGE [set = every set value from separate set] 0 20 WITHSCORE - Must then rank all data, skim off top 20 (most recent, where sorted set SCORE = UNIX timestamp) [12:27:23] TimTim (TimTim@cpe-098-026-149-108.triad.res.rr.com) joined #redis. [12:27:52] i've asked this over in #node.js but i'll ask here too since no one's responded and i'm completely stumped [12:27:56] would anyone here be so kind as to tell me why sessions aren't persisting with redis http://pastebin.com/0atXYpPu [12:29:40] elcuervo_ (~elcuervo@r186-48-255-65.dialup.adsl.anteldata.net.uy) left irc: Remote host closed the connection [12:29:45] I don't even know how to read that code :) [12:29:57] yejjj: what's the actual question? [12:30:06] :'( [12:30:08] elcuervo (~elcuervo@r186-51-223-226.dialup.mobile.ancel.net.uy) joined #redis. [12:30:40] Do you see the call being made to the redis-server and data being stored in them? [12:31:21] ron: Just wondering whether it was possible to execute a command in that format in Redis (it is trivial with server-side support) [12:32:22] yejjj: let's try it differently, if you don't mind. can you explain the scenario but not in 'official' query words? just what do you want to retrieve? [12:33:10] I have data stored in ZRANGE user122 = {'UNIX datestamp' => 'Message etc.', 'UNIX datestamp 2' => 'Message dsfhsd' [12:33:26] Ok. I also have a set set1 = [user1, user2, user3] [12:33:38] _h0bbit (~vedang@59.95.22.139) left irc: Ping timeout: 240 seconds [12:33:45] I need to call z ZRANGE function with key argument = 'foreach value in set1' [12:33:57] Then merge all outputs (including SCORE) and select the top 20 [12:34:13] I'm researching a fan-out-on-read Twitter-like example vs fan-out-on-write [12:34:38] Guest23195 i see that node has performed a number of commands on redis but no change in the amount of memory used [12:34:40] Sorry, meant to say sorted set vs ZRANGE in first line [12:37:04] yejjj: okay, let me process this a sec. [12:37:46] insin (~insin@host86-148-254-166.range86-148.btcentralplus.com) left irc: Quit: What's the point in giving us haaaaannnds? [12:40:17] yejjj: well, I think that with our data structure you can't do that in a single operation. the command you _may_ be able to utilize is SORT, but you'd have to store your data differently to achieve that. [12:41:24] I thought that might be the case. Any recommendations for an alternative data-storage methodology? [12:41:59] rodrigovieira (~rodrigovi@187.59.112.87) joined #redis. [12:42:32] read the command documentation: http://redis.io/commands/sort notice the part about the usage of hashes. [12:42:39] it should give you a general idea. [12:42:50] Thanks so much for your help; will do. [12:42:57] Thanks again [12:42:58] yejjj (5698472f@gateway/web/freenode/ip.86.152.71.47) left irc: Quit: Page closed [12:43:01] what you need to consider is whether the new data structure will support other operations you'd want to perform [12:43:05] and I wrote that for nothing. [12:45:10] insin (~insin@host86-148-254-166.range86-148.btcentralplus.com) joined #redis. [12:51:07] jano (~djanowski@190.245.30.40) left irc: Remote host closed the connection [12:57:21] seppo0010 (~Adium@200.69.194.105) left #redis. 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[18:51:38] insin (~insin@host86-148-254-166.range86-148.btcentralplus.com) left irc: Remote host closed the connection [18:52:15] bmizerany (~bmizerany@204.14.152.118) left irc: Remote host closed the connection [18:53:35] soveran (~soveran@186.19.214.247) left irc: Remote host closed the connection [19:01:05] gogdizzy (7c418252@gateway/web/freenode/ip.124.65.130.82) joined #redis. [19:02:05] hi, anyone here? [19:20:16] cnnr (c753dfd7@gateway/web/freenode/ip.199.83.223.215) joined #redis. [19:20:30] cnnr (c753dfd7@gateway/web/freenode/ip.199.83.223.215) left irc: Client Quit [19:29:40] gogdizzy: http://catb.org/~esr/faqs/smart-questions.html#prune [19:30:34] It'd be nice if someone made this more tailored toward IRC. [19:31:13] Multiple times per day someone requests synchronous communication of everyone in the channel. Not efficient. [19:31:34] sorry, i just want to make sure this is not an empty channel [19:31:46] so i want ask a question [19:32:04] gogdizzy: I don't care. [19:32:59] do Redis use single thread to process IO and query? [19:33:56] gogdizzy: Sort-of. Redis uses io multiplexing. Specifically epoll if you're on linux. So it's really fast even though it's only using one thread. [19:34:43] How it works is one thread waits on the epoll system call. The operating system tells redis when a socket is ready to read. Redis uses it's single thread to read the request and do stuff. It's a similar process for writing a response. [19:36:12] so if use single thread to process query, is there some loss of performance in MULTI-CORE cpu? [19:37:37] yes, if redis was multithreaded it could probably be faster at the expense of enormous complexity. However, antirez knows of this and already has a game-plan for dealing with it. [19:38:11] When redis cluster is ready you will be able to run one redis instance per CPU. This will be extremely fast and it's a share-nothing approach as far as operating system threads go. [19:38:50] When you have multiple threads accessing the same data they have to be synchronized which also costs performance. [19:39:18] If you share nothing, and give each CPU a portion of the data it's responsible for, then you don't have any synchronization overhead. [19:39:46] It's important to avoid the complexity of multithreaded code too. [19:39:56] So it's a pretty good design choice that redis is single-threaded IMO. :) [19:43:15] i mean is it better using single writing thread and multiple reading threads? [19:44:39] or you may think this is the job that clients should do ? [19:46:19] The client and server can be thought of separately. You can have a client implemented to use one thread to read and one thread to write. I know of a client that works this way. [19:48:20] xcbt (~xcbt@bc98121.bendcable.com) joined #redis. [19:48:36] The question seems strange. I'm probably not answering in a effective way because I'm not sure what you're asking. [19:48:55] someone tell me that if use single thread and aio, the thoughout will be great [19:50:04] i mean that if Redis use multiple reading thread to process different queries, is there any enhancement? [19:50:26] Are you talking about the redis server or redis client right now? [19:51:07] redis server [19:51:45] So is the question roughly "could redis be faster if it was multi-threaded?" [19:51:57] yes [19:52:34] I'll stick with my previous answer on that. I don't think I could improve upon what I said. [19:54:55] sorry, my english is not so good, i should study hard. thank you, vsmatck! [19:55:10] Guest40165 (~jason@li14-82.members.linode.com) joined #redis. [19:56:39] hello! when using redis as a backend store for a specific set of details within an app, and connecting to redis directly as part of API processing in this app, is it necessarily to concern yourself with connection pooling? or does the python redis libs handle this for you? 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