Perl 6 - the future is here, just unevenly distributed

IRC log for #gluster, 2015-11-13

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02:47 Topic for #gluster is now Gluster Community - http://gluster.org | Patches - http://review.gluster.org/ | Developers go to #gluster-dev | Channel Logs - https://botbot.me/freenode/gluster/ & http://irclog.perlgeek.de/gluster/
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02:51 jvava i know hdfs admit not using any raid
02:51 jvava how about gfs
02:52 jvava is it better or worse that using a raid as storage for gluster fs?
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06:46 mjrosenb does anyone know how migrations/balances work? I have a bunch of questions.
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08:10 overclk mjrosenb: you can ask here anyway, someone around would reply.
08:10 overclk mjrosenb: else, you could drop a mail in the ML for followups.
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08:19 mjrosenb will gluster automatically migrate files with a linkto?
08:19 mjrosenb and if I change the percentage of files that go to each brick, presumably, it can either immediately move files over
08:19 mjrosenb or it can create linktos, and move them over later
08:20 mjrosenb is it possible to ask it to migrate a single file, but not the rest?
08:20 overclk mjrosenb: #1: files are migrated when the cluster is rebalanced (triggered via cli).
08:22 overclk mjrosenb: I don't think just a single file can be migrated, it's a cluster rebalance.
08:27 mjrosenb and a cluster rebalance automatically calculates the percentage of data that goes to each node?
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08:35 mjrosenb I think you missed it:
08:35 mjrosenb 03:27 < mjrosenb> and a cluster rebalance automatically calculates the percentage of data that goes to each node?
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09:16 overclk mjrosenb: rebalance would re-distribute the data among the new layout.
09:17 overclk mjrosenb: distribution is based on layouts (assigned to directories which exist on all nodes in a cluster)
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10:53 bkunal ndevos++ hchiramm++
10:54 glusterbot bkunal: ndevos's karma is now 23
10:54 glusterbot bkunal: hchiramm's karma is now 1
10:55 ndevos bkunal: does that mean the docs got relocated?
10:56 bkunal ndevos, mixed 3.7 and 3.6 environment
10:56 ndevos bkunal: ah, ok :)
10:56 bkunal hchiramm, and i was discussing the same and then we saw ur reply
10:57 hchiramm bkunal++ :)
10:57 glusterbot hchiramm: bkunal's karma is now 1
10:57 bkunal ahh my count begins :)
10:57 hchiramm all the best :)
10:58 bkunal :)
11:00 bkunal ndevos, I even wanted o know how you did migration from upstream to downstream.....with Christopher?
11:01 bkunal ndevos, platform was not migrated right?
11:01 bkunal ndevos, ping PM
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15:54 wpe-michael hello.. I'm working with a gluster setup and am trying to use quotas
15:54 wpe-michael I have found the usage size be be out of whack and looked into it a bit on google
15:57 wpe-michael I found the quota_verify and quota_heal scripts.. are those the canonical way to correct this?
15:58 wpe-michael I'm seeing approximately a doubling of the expected disk usage
16:00 wpe-michael actually.. at the brick level.. it seems to be around a 20x increase in usage over what du returns
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16:06 wpe-michael [ERROR] quota size and actual size doesn't match for dir /bricks/i-03fc55d7/brick (210570044928 != 13056568320)
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16:20 bennyturns wpe-michael, hi yas!
16:21 bennyturns wpe-michael, are you saying the quota is not being honored or it is different than what you set?
16:23 bennyturns wpe-michael, if its not being honored we can do some tuning, if you write real fast you can go over the quota by your write speed * the hard time out # of seconds
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16:24 bennyturns so if the hard limit is set to 5 seconds and you write at 500 MB / sec you can go over the quota by 5 * 500 = 2.5 GB
16:24 bennyturns you can tune this down but wil take a bit of a perf hit
16:24 wpe-michael the behavior is that the usage is misreported. While the disk space used is actually 13GB, the quota usage shows 170GB
16:25 bennyturns wpe-michael, there is a setting you can set to make it show up, 1 sec
16:27 bennyturns wpe-michael, https://access.redhat.com/documentation/en-U​S/Red_Hat_Storage/2.1/html/Administration_Gu​ide/chap-User_Guide-Dir_Quota-Display.html
16:27 glusterbot Title: 13.4. Displaying Quota Limit Information (at access.redhat.com)
16:27 bennyturns the deem statfs makes df / du show up properly, is that what you are looking for?
16:27 bennyturns IIRC
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16:34 wpe-michael root@storage-90001-i-03fc55d7:~# gluster volume quota storage list
16:34 wpe-michael Path                   Hard-limit Soft-limit   Used  Available  Soft-limit exceeded? Hard-limit exceeded?
16:34 wpe-michael -----------------------------------------​-----------------------------------------​-----------------------------------------
16:34 glusterbot wpe-michael: -----------------------------------------​-----------------------------------------​---------------------------------------'s karma is now -1
16:36 wpe-michael whoops.. I angered the bot
16:36 wpe-michael gluster reports used vs avail: 197.1GB 202.9GB
16:37 wpe-michael df reports: 14G  361G
16:38 wpe-michael That was before and after setting: gluster volume set storage quota-deem-statfs on
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18:27 fubada Hi, anyone know if this is the recommended way to monitor gluster with nagios? http://download.gluster.org/pub/gluster​/glusterfs-nagios/CentOS/epel-6Server/
18:27 glusterbot Title: Index of /pub/gluster/glusterfs-nagios/CentOS/epel-6Server (at download.gluster.org)
18:27 fubada I cant find any official docs on that repo/rpms
18:30 fubada http://download.gluster.org/pub/gluster/g​lusterfs-nagios/CentOS/epel-6Server/glust​er-nagios-addons-0.1.1-0.el6.x86_64.rpm
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22:05 thoht__ i got strange issue on a gluster volume
22:05 thoht__ when trying to get info on  a file i can t
22:05 thoht__ 2015-11-13 22:05:43.296171] W [fuse-bridge.c:969:fuse_fd_cbk] 0-glusterfs-fuse: 660491: OPEN() /dnxsys-web001_data.img => -1 (Permission denied)
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22:06 thoht__ qemu-img info on it says same: qemu-img: Could not open 'dnxsys-web001_data.img': Could not open 'dnxsys-web001_data.img': Permission denied
22:06 thoht__ but if i go directly to the brick; i can have the correct info
22:06 thoht__ the issue is only when accessing the file through fuse mount
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22:12 thoht__ ok fixed !!! it was not owned to qemu
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