03:41:48 GMT <felixjet> when i run redis nodejs library, using createClient() makes the script never end, why?
06:11:06 GMT <dbkaplun> what happens if I delete a big set in the middle of a SSCAN?
07:19:44 GMT <temhaa> hello
07:21:29 GMT <Sparrow_> hi
07:21:38 GMT <temhaa> I want to install redis sentinel structure. I've two machine for this. But It's writing "just to sentinels, don't do this" in document of sentinel
07:22:17 GMT <temhaa> I installed master - slave with sentinel for two machine. I guess It's not true approach.
07:22:37 GMT <temhaa> Can you any advice. Should I install 4 sentinel to distribute to two machines
07:22:42 GMT <Sparrow_> can any one please tell me that why redis doesn't support json nested object? and when will it support?
07:32:26 GMT <Sparrow_> can any one please tell me that why redis doesn't support json nested object? and when will it support?
07:37:03 GMT <zetab> temhaa: do not use only two
07:37:18 GMT <zetab> you can run in to split brain situation where both thinks that "i am master"
07:37:56 GMT <zetab> it does not work with 4 sentinels either, if your quorum is 2 then you can run to split brains
07:38:18 GMT <zetab> if your quorum is 3 it works - but you have 50% probability that whole service goes down if correct servers goes down
07:39:08 GMT <zetab> Sparrow_: well at least i am writing json to redis and reading it from redis
07:39:23 GMT <zetab> why it should be supported more than that? i do not understand
07:41:49 GMT <temhaa> zetab: thank you for answer.  so what is quorum? is it number of sentinel?
07:44:50 GMT <temhaa> zetab: what is your advice to setup high avaliability. If we have three machine I can install cluster with 3 node
07:45:04 GMT <temhaa> zetab: by the wat I am not good in redis :(
07:50:03 GMT <zetab> quorum is the number of sentinels, how much you should have in order to elect master
07:50:17 GMT <zetab> like if quorum is 1 - only one sentinel is needed to say which redis is master
07:50:26 GMT <zetab> if quorum is 3 - three sentinels is needed to say which is master
07:50:29 GMT <zetab> it needs 3 votes
07:50:53 GMT <zetab> now if you have 4 sentinels (with quorum 2) you can run to situation that both machines are thinking i am the master
07:54:02 GMT <temhaa> quorum size is depends on sentinel size (I shouldnt select big number for quorum because sentinels can be down)
07:58:32 GMT <temhaa> zetab: I have one more question,  how they connecting R2 and R3 in  Example 2 basic setup with three boxes part of http://redis.io/topics/sentinel
07:58:55 GMT <temhaa> zetab: what can be redis  sentinel configuration file. It's not cluster right?
08:24:07 GMT <Hetman> Hello what happen if I will ran redis server using : redis-server -f /path/to/my/conf.file --requirepass some_pass_other_than_in_conf . I'm assuming CLI parrameter will take priority but everything else will be like in .conf file yes ?
08:57:54 GMT <badboy_> Hetman: correct
08:58:00 GMT <badboy_> though there's no -f
09:06:11 GMT <temhaa> are sentinels related to slaves. another way, should I same sentinel file to setup two sentinel(just change port number)
10:22:35 GMT <temhaa> I can add "daemonize yes" to sentinel.conf?
11:09:31 GMT <temhaa> additionaly : what is sentinel auth-pass
11:09:41 GMT <temhaa> what does do actually
11:27:33 GMT <Hetman> badboy_: thanks a lot
17:45:53 GMT <dbkaplun> I have two distinct operations that are run very frequently. is there a possibility for deadlocks? https://gist.github.com/dbkaplun/e62822636e42bc0d0b20029f88354774
17:47:03 GMT <dbkaplun> if we have retry logic for publishing posts and there's two machines trying and retrying to publish posts at the same time, is there any way to guarantee one will succeed?
18:35:05 GMT <dbkaplun> nvm
21:06:33 GMT <blib> does redis only store json strings?
21:07:31 GMT <minus> redis does not understand json, it only understands binary data
21:08:07 GMT <minus> well deals with input as binary data, it doesn't understand it
21:08:31 GMT <blib> minus: so if I have a python float, how do I store it?
21:09:10 GMT <minus> you convert it into a string (or rather your client library will)
21:10:26 GMT <blib> minus: so if I say rdb[key] = 12.00 - does it store 4 bytes or does it store a string "12.00"
21:11:34 GMT <minus> it will be "12.00" in the protocol, redis may internall convert it again i think, since it has commands like incr, but not sure how that works
21:12:21 GMT <minus> http://redis.io/commands/incrbyfloat
21:12:41 GMT <minus> seems like it parses the key content before incrementing, so it's stored as string
21:15:23 GMT <blib> minus: seems like its storing both "4.0" and 4.0 as b'4.0'?
21:15:43 GMT <minus> yep
21:16:06 GMT <minus> as i said, it's converted to a string for the network protocol
21:16:39 GMT <blib> minus: so I can't ever store a float or a comact data structure in redis? Everything gets converted to strings? Why convert float to strings?
21:17:15 GMT <minus> redis-py will try to parse the key content as integer when get'ting it i think
21:18:16 GMT <blib> minus: but why expand a 4 byte or 8 byte value to a 100 byte value?
21:18:17 GMT <minus> you don't have to store floats as strings, you can encode them however you want, strings are just the default encoding (and required for incr* to work)
21:18:34 GMT <minus> well, 100 bytes is exaggerating
21:18:57 GMT <minus> you can use struct.pack and store it as 4 byte value in redis
21:19:00 GMT <blib> '4.0' = 36 bytes on this machine
21:19:25 GMT <minus> where do you get that number?
21:19:36 GMT <blib> getsizeof(rs.get("mykey"))
21:19:39 GMT <blib> = 36
21:19:52 GMT <minus> "4.0" is obviously 3 bytes of data
21:19:59 GMT <minus> never heard of getsizeof
21:20:44 GMT <blib> that's sys.getsizeof from python
21:21:09 GMT <minus> well, that doesn't have anything to do with redis though