Perl 6 - the future is here, just unevenly distributed

IRC log for #gluster, 2017-09-07

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01:54 Topic for #gluster is now Gluster Community - https://www.gluster.org | Documentation - https://gluster.readthedocs.io/en/latest/ | Patches - https://review.gluster.org/ | Developers go to #gluster-dev | Channel Logs - https://botbot.me/freenode/gluster/ & http://irclog.perlgeek.de/gluster/
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06:07 glusterbot nbalacha: Please don't naked ping. http://blogs.gnome.org/markmc/2014/02/20/naked-pings/
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11:14 scobanx Can I use 3.7.11 server with 3.10.5 client for read only data movement? Is it recommended?
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11:45 ingard i'm getting timeouts when running various gluster volume status commands
11:45 ingard does anyone know what might cause that?
11:46 ashka hi, sometimes when doing heavy i/o, it seems like the client fails to communicate with one brick (connection reset by peer), and the files fail to be written (transport endpoint is not connected). is there a way to cache the files pending reconnection to the brick instead of failing to write them? the disconnection lasts about 1 second according to logs
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11:55 gunix any ideea why wordpress is crashing when clustered with glusterfs? :D
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13:03 Klas my first guess would be incorrect ownership of files and a secured php interpreter
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13:38 [fre] guys, having small-files-performance issues, I was wondering if changing filesystems from XFS to ext4, would solve anything...
13:38 [fre] We do have an awful lot of files, and reading&writing takes days...
13:39 [fre] as a first stage-test, we'd be changing the LV containing 20 bricks to 1 small LV per brick. not sure it would help.
13:40 [fre] Could somebody enlighten us on this?
13:40 dijuremo [fre]: gluster is not very good for many small files, if you are really looking for better performance you may want to look at a different solution. Newer versions have made some improvements, but it is still not great.
13:41 [fre] dijuremo, I hardly can. it's been bought ages ago. initially for Laaaarge files. but everybody has been given disks.
13:42 [fre] as a side-note, any idea though how Ceph would deal with this?
13:42 dijuremo [fre]: I honestly have not heard good things about Ceph either dealing with small files...
13:43 [fre] well.... OK then. :)
13:43 dijuremo I have no direct experience with Ceph, but do have direct experience with gluster as a samba server for Windows machines with roaming profiles
13:43 dijuremo It sucks!!!!!!!!!!!!!!!!!
13:43 [fre] lol
13:44 dijuremo Some improvements were found going from 3.6.x to 3.10.x but it is still not as great as before when I used DRBD
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13:45 [fre] I'm stuck in RH's version, being 3.8.4 currently...
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13:47 [fre] remains the need to have it tuned optimally...
13:47 dijuremo [fre]: some improvements were made in 3.7.x and you had to tune the optimization settings, other than that... there is not much more to do...
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13:48 [fre] dijuremo, any link to where I can find those settings exactly?
13:48 [fre] or what to set them too at least. ;)
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13:51 dijuremo Well, no idea if this will be backported by RH or not:
13:51 dijuremo https://gluster.readthedocs.io/en/latest/release-notes/3.9.0/
13:51 glusterbot Title: 3.9.0 - Gluster Docs (at gluster.readthedocs.io)
13:51 dijuremo See section: Small file improvements in Gluster with md-cache (Experimental)
13:52 dijuremo This is what I am currently using in my gluster volume used for samba
13:52 dijuremo https://thepasteb.in/p/lOhONgR86P3IB
13:52 glusterbot Title: ThePasteBin - For all your pasting needs! (at thepasteb.in)
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13:52 dijuremo It is a two node + arbiter setup
13:54 [fre] Tnx!. let me compare to what I have
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13:58 dijuremo [fre] check this: https://access.redhat.com/documentation/en-US/Red_Hat_Storage/3/html/Administration_Guide/Small_File_Performance_Enhancements.html
13:58 glusterbot Title: 9.5. Small File Performance Enhancements (at access.redhat.com)
13:58 dijuremo Not sure if the docs for 3.2 have more info...
14:03 [fre] I noticed the client and brick-log-levels are on "info"... seems it bit to talky... but it's the way it's done by default
14:03 dijuremo I also have a RHEL 7.4 server with gluster 3.8.4 and I see the samba option there
14:05 [fre] I do encounter a performance.cache-size which is quite small... 128M...
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14:06 dijuremo If you have lots of RAM you can increase that, but I assume it is low to start just to be safe.
14:06 [fre] HOW do you know if those parameters are volume-bound or entirely gluster-bound?
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14:08 dijuremo You try to apply it to a volume and if it says you cannot, then it is for the whole gluster...
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14:08 dijuremo gluster v set volname blah value
14:08 dijuremo vs
14:09 dijuremo gluster v set all blah value
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14:16 [fre] uhu.
14:16 [fre] any specific tuning we could try on the FS?
14:16 dijuremo IDK, the RH docs seem to only show tunning options for storing VMs...
14:17 [fre] RHGS-docs are a bit ... rudimental
14:17 [fre] 32GB of ram... think we can raise caching...
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14:23 blizzkid Hi all, I know it won't be optimal, but would it be technically possible to combine glusterfs and mysql manegement node, glusterfs and mysql data node, glusterfs and mysql sql node?
14:24 blizzkid I have a customer who wants a HA owncloud setup on 2 physical nodes (I know, he should have spoken to us before)
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14:47 [fre] JoeJulian, when I look at statistics it seems that ext4 is overall better than XFS with small files.
14:47 [fre] Would it be a better idea to build gluster on that?
14:47 [fre] how about stability?
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15:53 Wayke91_ hey all, looking for a good way monitor my deployment, does anyone know if glubix is still good?
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15:59 elyograg wondering if there's anyone around who could be of assistance with helping me set up something like glusterbot for another channel.
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16:01 elyograg i have the software working, using a registered nick. but i've really got no idea how to get it to do some of the cool things that glusterbot does.
16:09 amye The gluster-meeting channel has zodbot, which is from Fedora's infra. https://fedoraproject.org/wiki/Zodbot
16:09 glusterbot Title: Zodbot - FedoraProject (at fedoraproject.org)
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16:58 JoeJulian [fre]: That used to be true like 10 years ago, but shouldn't be anymore.
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17:02 JoeJulian elyograg: glusterbot is using https://github.com/ProgVal/Limnoria. Most of the @[keyword] functionality is from the factoids plugin. The rest is using messageparser.
17:03 JoeJulian elyograg: If you msg glusterbot directly, you should be able to look at pretty much all of the configuration (except passwords, of course). list Messageparser will show you commands so you can look at that magic.
17:04 elyograg I have Limnoria installed and the beginnings of the configuration.
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20:57 marc_ «
20:57 marc_ Unable to fetch slave volume details. Please check the slave cluster and slave volume.
20:57 marc_ geo-replication command failed
20:58 marc_ → after: gluster volume geo-replication volumes replication@raum::volumes create push-pem
20:58 marc_ what'sthat?
21:01 marc_ is it a problem, that user replication cannot run the gluster-command?
21:05 marc_ anyone here?
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21:21 snehring marc_: gluster on your main volume cannot connect to the volume on the slave side
21:21 marc_ why?
21:21 snehring make sure glusterd is running over there and the firewall is configured to allow glusterfs
21:21 marc_ yes and yes ist is
21:22 marc_ no firewall, gluster 12 running on all, same LAN
21:22 marc_ no NAT
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21:23 marc_ do I need to peer probe the slave from the master?
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21:24 marc_ snehring?
21:24 snehring no you shouldn't have to do that
21:25 marc_ ok,then I don't understand
21:26 snehring can you link an fpaste or similar of everything you've done up to this point?
21:26 marc_ but: of course, user replication (which is the target user in the slave) cannot run gluster - only root can
21:27 marc_ That's simple, I followed this: https://gluster.readthedocs.io/en/latest/Administrator%20Guide/Geo%20Replication/
21:27 glusterbot Title: Geo Replication - Gluster Docs (at gluster.readthedocs.io)
21:27 marc_ version > 3.9
21:27 marc_ (upgraded to latest, 3.12)
21:29 marc_ here my steps,as i noted them
21:29 marc_ https://pastebin.com/mCNnVcqR
21:29 glusterbot Please use http://fpaste.org or http://paste.ubuntu.com/ . pb has too many ads. Say @paste in channel for info about paste utils.
21:29 marc_ hey, I see it!
21:30 marc_ thank you for listening, snehring, give me a minute for a try...
21:31 marc_ nope
21:32 marc_ teh slave volume was wrong, «volumes» instead of «replication», but when I correct it,I still get the same error message :(
21:33 snehring the push-pem step is only for version 3.8 and older
21:33 snehring I think
21:33 marc_ older? not newer?
21:33 snehring sorry I don't have alot of experience with the newer gluster versions
21:33 marc_ that works as root from mater: ssh replication@raum
21:35 snehring as root on master it works as expected?
21:37 marc_ what works?
21:37 marc_ root on master has pw-less ssh-login to replication@raum
21:38 marc_ raum is the slave
21:38 snehring yeah
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21:40 snehring I've got to go, but you should look at the gverify.sh script (where that's located depends on your install)
21:40 snehring that's what's throwing that error
21:40 snehring running it manually might give some insight
21:40 marc_ any parameters?
21:41 snehring documented in the script
21:41 marc_ ok, il check later, thanks
21:41 marc_ just trying some service restat / reboot
21:41 snehring good luck, sorry I couldn't be of more help
21:41 marc_ thx for trying :)
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