Perl 6 - the future is here, just unevenly distributed

IRC log for #gluster, 2014-09-01

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01:58 semiosis Gabou: yes, glusterfs is a distributed filesystem that you mount over a network, usually ethernet but you can also use infiniband.  it works at the file level, not block, so it's quite different from RAID, but you can do a mirror in what's called a replicated volume
01:58 semiosis Gabou: some workloads fit better than others and if you say a bit more about what you want to use it for maybe someone can give you a better idea of how to proceed
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05:29 glusterbot New news from resolvedglusterbugs: [Bug 764655] NetBSD port <https://bugzilla.redhat.com/show_bug.cgi?id=764655>
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05:49 azar hi everybody.I have a question about gluster code. I just want to know more about the file dict.c and the main goal of this file and more about each function. How can I get more information?
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06:29 atinmu kshlm, need to talk to u, can u ping me?
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06:45 lalatenduM azar, I am not familiar with it, I think ndevos can give you some pointers
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06:50 azar lalatenduM: Thank u ;-)
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06:52 lalatenduM azar, np
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06:53 lalatenduM azar, hagarth can give you some pointers too
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07:06 ndevos azar: dict.c is the implementation of the dictionary structure (key/value store) and helper functions to store/retrieve values by keys
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07:08 ndevos azar: I'm not sure what questions you have?
07:12 azar ndevos: Thank u. I got my answer.
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10:50 glusterbot New news from newglusterbugs: [Bug 1130888] Renaming file while rebalance is in progress causes data loss <https://bugzilla.redhat.co​m/show_bug.cgi?id=1130888>
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11:30 glusterbot New news from resolvedglusterbugs: [Bug 1114501] Dist-geo-rep : deletion of files on master, geo-rep fails to propagate to slaves. <https://bugzilla.redhat.co​m/show_bug.cgi?id=1114501>
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16:27 NigelSUK evening :)
16:44 NigelSUK dont suppose anyone could help me out with a small problem?
16:46 samppah feel free to share your problem :)
16:48 NigelSUK thanks, my replicated volume i set up, seems to not want to replicate... i create a file on server 1, and it doesnt appear on server 2, no visible errors, volume and peer status is all good .. slightly puzzled
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16:51 samppah NigelSUK: have you mounted the volume using glusterfs?
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16:54 NigelSUK oh.. hmm.. possibly not.. my first time using gluster .. think the guide i followed may have missed that bit !
16:56 samppah okay.. you have to use the volume through glusterfs mountpoint or nfs .. ie. mount -t glusterfs server:/volname /mnt/gluster
16:57 NigelSUK ahh i see, my understanding was that servers dont have to mount each other to replicate from 1 to the other .. guess i was wrong ?
16:58 samppah yeah, it's only somewhat safe to read from backend bricks but write operations have to go through client
16:59 NigelSUK makes sense, so do i mount on both servers, or just the server im replicating to ?
17:00 samppah it's recommended to mount on all servers where you are using it
17:09 NigelSUK oki will do that, thanks alot for the help :)
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17:39 NigelSUK samppah following your instruction to mount is causing it to hang .. ?
17:43 samppah NigelSUK: are you mounting it to other than brick directory?
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17:48 NigelSUK no, i created the volume in /home/sites and my mount command was mount -t glusterfs fs01:/websites /home/sites
17:51 samppah NigelSUK: ok, that explains. it has to be different directory.. ie. create volume in /gluster/sites and mount it to /home/sites
17:52 NigelSUK aha yes that would cause it ..will fix that now, thank you again !
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18:29 NigelSUK samppah same problem :(
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18:40 samppah NigelSUK: hmm.. anything in logfiles?
18:42 NigelSUK nope, no errors or warnings, when i try to mount it it just hangs, and i have to ctrl c to get out of it, but after that if i do mount it shows it as mounted, but df -h hangs .. so somethings a bit off :s
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19:01 semiosis NigelSUK: what version of glusterfs?
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19:02 semiosis NigelSUK: what distro?
19:02 NigelSUK ahh 2 secs i found an error, but i dont understand why its come up ... Unable to stat /var/lib/glusterd/gluster/websi​tes/gluster/websites-server.vol (No such file or directory)
19:02 NigelSUK ubuntu 14.04 gluster ver 3.4.2
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19:08 semiosis NigelSUK: please ,,(pasteinfo)
19:08 glusterbot NigelSUK: Please paste the output of "gluster volume info" to http://fpaste.org or http://dpaste.org then paste the link that's generated here.
19:14 NigelSUK oh sure, sorry ..
19:15 NigelSUK http://fpaste.org/130171/95989381/
19:15 glusterbot Title: #130171 Fedora Project Pastebin (at fpaste.org)
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19:16 NigelSUK and volume status is here  http://fpaste.org/130172/59897414/
19:16 glusterbot Title: #130172 Fedora Project Pastebin (at fpaste.org)
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19:23 semiosis ok next up, need a fresh client log file.  can you make a new mount, say mount -t glusterfs fs01:websites /tmp/websites, and put the log file (/var/log/glusterfs/tmp-websites.log) up on fpaste.org?
19:23 semiosis notice no slash in server:volume
19:24 NigelSUK sure
19:28 NigelSUK ok, weird, that worked :|
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19:30 NigelSUK http://fpaste.org/130174/09599785/
19:30 glusterbot Title: #130174 Fedora Project Pastebin (at fpaste.org)
19:32 NigelSUK seeing as it worked in /tmp .. could this be a permissions problem on /home/sites?
19:37 semiosis permissions from the volume should override whatever perms were on the mount point before mounting, so probably not that
19:38 NigelSUK hmm
19:40 semiosis could there be a previous attempt at mounting /home/sites that is hung & locked the directory?  maybe a reboot would clear this all up
19:40 NigelSUK ill try a reboot
19:41 NigelSUK last time i tried gluster was with centos and it didnt have this issue, and was using 3.4.2 wondering if it's something being caused specifically by ubuntu
19:45 NigelSUK that fixed it, as did not having a / in the volume name within the mount command
19:47 NigelSUK http://fpaste.org/130177/96008291/
19:47 glusterbot Title: #130177 Fedora Project Pastebin (at fpaste.org)
19:47 NigelSUK :) thank you very much semiosis
19:48 semiosis you should probably upgrade to 3.4.5 in the PPA, https://launchpad.net/~gluster​/+archive/ubuntu/glusterfs-3.4
19:48 glusterbot Title: glusterfs-3.4 : “Gluster” team (at launchpad.net)
19:48 semiosis yw
19:54 NigelSUK ahh ok, ill look into doing that, now i need to find a way to make this failover :(
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21:43 NigeyUK| semiosis just checking, on fs2 do i mount fs1 or fs2 the same as with fs1?
21:44 semiosis either one, makes no difference. you can even use ,,(rrdns)
21:44 glusterbot You can use rrdns to allow failover for mounting your volume. See Joe's tutorial: http://goo.gl/ktI6p
21:44 semiosis see also ,,(mount server)
21:44 glusterbot The server specified is only used to retrieve the client volume definition. Once connected, the client connects to all the servers in the volume. See also @rrdns
21:45 NigeyUK| brill, thanks will take a look :D
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