10:18:29 GMT <xiconfjs> Hi, I have a problem to get my head around a HA setup with redis 2.8. Given are 6 bare-metal servers, on 4x of them is the redis-server running, 1x master, 3x slaves, and 4x sentinels pointing to the master. on the other 2x bare-metal server is only sentinel running pointing to the master. If 1x server fails, failover is handled like a charm. Now the 6x bare-metal servers are in 2 separate racks. if 1x hole rack fails, so 3x of 6x bar
10:18:40 GMT <xiconfjs> hangs with "-failover-abort-not-elected". Is there any way around this?
12:30:07 GMT <badboy_> use an odd number of sentinels and make sure you have n/2+1 sentinels alive
13:53:36 GMT <dudeji> hi anybody using php -redis extension as connector for redis ? I mean no library just run-time php -redis extension.
13:54:49 GMT <RemiFedora> dudeji, have you a real question ?
13:55:35 GMT <dudeji> can i access redis cluster with php redis extension library or do i need to put some lib ?
13:57:07 GMT <RemiFedora> do you mean using the pecl redis extension ?
13:57:34 GMT <RemiFedora> IIRC version 3.1.x have cluster support (but is mostly broken...)
13:57:34 GMT <dudeji> yeah
13:59:26 GMT <dudeji> does pecl has stable master slave ?
14:03:21 GMT <RemiFedora> no idea
17:21:50 GMT <redis443> Well, here goes nothing... is this the place to ask about best-practice suggestions on how to launch processes in a Linux environment on Redis key change detection?
17:22:51 GMT <minus> well, your question has the term redis in it, so i guess it's valid? :D
17:23:02 GMT <redis443> :)
17:24:51 GMT <redis443> As a more specific example of what I'm after: I'd like to run a process (as root, to copy a file) when a redis key changes value.  Not sure what the best approach is, considering it involves root.
17:25:28 GMT <minus> maybe you can do without root
17:25:47 GMT <minus> but that doesn't change the implementation
17:27:06 GMT <minus> enable keyspace notifications and write a python (or whatever) script to subscribe to the respective keyspace event, then copy the whatever file you need to copy
17:27:20 GMT <minus> that's max. 10 lines of code
17:27:29 GMT <minus> obviously that script has to be running all the time
17:28:19 GMT <minus> redis itself can't execute things, for the record
17:28:28 GMT <redis443> Understood, and am able.  Unfortunately it does require root, as the file to be copied is only accessible by root.
17:29:23 GMT <redis443> I guess the answer is that I will run the script as root.
17:29:31 GMT <redis443> Thank you.
17:29:32 GMT <minus> Yep
17:30:00 GMT <redis443> BTW: redis rules!  :)
17:30:07 GMT <minus> Just make sure that input from redis can't be used to write arbitrary files
17:30:34 GMT <minus> (redis key names can contain any characters)
17:30:48 GMT <redis443> Got it.  It is a very specific-purpose script, so there is no chance of that.  Thank you for your time!
17:30:57 GMT <minus> (even null bytes)
17:31:08 GMT <minus> You're welcome
19:39:59 GMT <lisper> Is Redis useful for AI, machine learning, etc...?
19:41:44 GMT <lisper> Hello?
19:42:02 GMT <lisper> Is Redis useful for AI, machine learning, etc...?
19:42:15 GMT <minus> Hello! You have reached the CNN-based help-bot powered by Redis. How may I help you?
19:42:37 GMT <minus> Redis is a key-value storage with some added functionality
19:42:38 GMT <lisper> minus,Is Redis useful for AI, machine learning, etc...?
19:42:57 GMT <lisper> minus, so is it?
19:43:31 GMT <minus> just kidding, no, it's just a key value store, but you can build things on top of it
19:43:37 GMT <minus> if it's suited for AI stuff i can't say
19:43:58 GMT <minus> antirez did an experiment with neural networks https://github.com/antirez/neural-redis
19:44:05 GMT <minus> but that's about all, i think
19:44:08 GMT <lisper> minus, where Redis is interesting?
19:44:30 GMT <minus> it's a cache primarily, like memcached
19:44:54 GMT <lisper> minus, only useful for webistes or also desktop apps?
19:45:18 GMT <minus> you need to a run a server, so maybe less so for desktop apps
19:45:32 GMT <hgdeoro> Hi everyone! I can't find information about which operations updates the last-access-time of a key (used by LRU). Just the writes? Reads and writes?
19:46:12 GMT <minus> hgdeoro: iirc DEBUG OBJECT gave some info on that
19:46:49 GMT <lisper> minus, what are the relationsheeps between Lua and Redis?
19:47:20 GMT <minus> redis can run small lua scripts as transactions (limited runtime; blocks all other operations)
19:47:34 GMT <hgdeoro> thanks minus, I'll check that right now
19:47:45 GMT <lisper> minus, where can redis be useful?
19:48:02 GMT <minus> that's up to you to find out
19:48:28 GMT <lisper> minus, :) did you notice the "relationsheep"?
19:48:52 GMT <minus> i did not
19:49:16 GMT <lisper> It was just a GAG
19:50:07 GMT <lisper> minus, do you want to hear the story :) ? My DB teacher pronounces relationship as relationsheep
19:50:12 GMT <lisper> he is not english native
19:50:57 GMT <lisper> minus, funny!
19:51:04 GMT <lisper> It is funny, right?
19:52:45 GMT <Habbie> it's basically racist
19:53:48 GMT <lisper> Habbie, why?