Perl 6 - the future is here, just unevenly distributed

IRC log for #gluster, 2015-10-04

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All times shown according to UTC.

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14:07 livelace Hello. 3-way replicated volume. Enabled BitRot. lazy/normal/agressive methods was enabled, but, if we create simple file through FUSE client on server1, and modify the same file on server 3 through direct FS operation - BitRot doesn't find this changes on scrub. Why ?
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14:36 ndevos livelace: I'm just guessing, but maybe bitrot triggers a heal of the file first?
14:37 ndevos livelace: the bitrot develepers are not online now, they should be able to answer your question when you send it on the mailinglist
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15:56 hagarth livelace: are you looking at scrub logs on server 3 to check if the scrubber reports it?
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15:57 hagarth ndevos: automatic healing is not yet available with bitrot. It is currently WIP.
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16:05 ndevos hagarth: ah, thanks, good to know :)
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16:08 livelace hagarth, Of course, nothing suspicious
16:09 livelace Start and rescheduling scrub
16:10 livelace [root@glusterfs3 ~]# gluster volume heal ovirt-data info
16:10 livelace Brick glusterfs1.livelace.ru:/export/vdb1/ovirt-data/
16:10 livelace Number of entries: 0
16:10 livelace Brick glusterfs2.livelace.ru:/export/vdb1/ovirt-data/
16:10 livelace Number of entries: 0
16:10 livelace Brick glusterfs3.livelace.ru:/export/vdb1/ovirt-data/
16:10 livelace Number of entries: 0
16:12 hagarth livelace: bitrot detected files do not get listed in heal info
16:12 livelace hagarth, http://pastebin.com/pBfeGpH3
16:12 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.
16:12 hagarth livelace: IIRC, scrubber also needs about 60-90 minutes to kickstart even in the agressive mode.
16:13 hagarth looks like 60 minutes
16:15 livelace hagarth, I test some things several hours (snapshots,clone etc), nothing was changed for this time
16:16 livelace hagarth, What I should see in logs when files are was changed ?
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16:18 livelace hagarth, Volume configuration http://fpaste.org/274624/75476144/
16:18 glusterbot Title: #274624 Fedora Project Pastebin (at fpaste.org)
16:19 hagarth livelace: something along the lines of https://github.com/gluster/glusterfs/blob/master/xlators/features/bit-rot/src/bitd/bit-rot-scrub.c#L224
16:19 glusterbot Title: glusterfs/bit-rot-scrub.c at master · gluster/glusterfs · GitHub (at github.com)
16:20 hagarth livelace: general tip  - network.ping-timeout is too low. Recommend setting it to 10 at least.
16:21 livelace hagarth, I known, this for testing
16:22 livelace hagarth, Maybe, will be good thing if I send my question to mailing list ? Or you can help me now ?
16:24 hagarth livelace: yes, would recommend posting it on the mailing list
16:25 livelace hagarth, grep -i corr /var/log/gluster/*.log - gave nothing
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16:26 hagarth livelace: check the value of trusted.bit-rot.signature in all 3 replicas
16:26 hagarth livelace: while testing bit-rot make sure that the corruption is induced after this extended attribute is set for the file
16:27 hagarth livelace: bitrot waits for 2 minutes of inactivity on a file before it attempts signing the file
16:28 hagarth if corruption is induced before bit-rot has signed the file, then the signature itself would be incorrect and hence the scrubber might not be able to detect that
16:31 livelace Uh
16:33 livelace http://fpaste.org/274628/44397635/
16:33 glusterbot Title: #274628 Fedora Project Pastebin (at fpaste.org)
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16:34 Flo__ hi
16:34 glusterbot Flo__: Despite the fact that friendly greetings are nice, please ask your question. Carefully identify your problem in such a way that when a volunteer has a few minutes, they can offer you a potential solution. These are volunteers, so be patient. Answers may come in a few minutes, or may take hours. If you're still in the channel, someone will eventually offer an answer.
16:35 livelace hagarth, signatures are different, so scrubber should detect this ?
16:35 Flo__ I have a replication cluster of two bricks. http://pastebin.com/aeW6Ks5j. On 1 node, I've set some posix acl entrys. They are not synced to the other brick.
16:35 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.
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16:39 livelace hagarth, volume status http://fpaste.org/274629/
16:39 glusterbot Title: #274629 Fedora Project Pastebin (at fpaste.org)
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16:51 hagarth Flo__: did you set acl entries from a glusterfs mount?
16:52 hagarth livelace: if signatures are different, then the scrubber cannot detect. a typical bit rot happens with signatures being the same and the underlying content different.
17:21 livelace hagarth,  Thanks, I will try again, after signature will be set in each replica
17:27 CyrilPeponnet hey guys I have a weird issue.
17:28 CyrilPeponnet I have a 3 node setup holding a volume containing some libs
17:28 CyrilPeponnet previously it was replicate 2
17:28 CyrilPeponnet was working fine
17:28 CyrilPeponnet but since I added a third brick
17:28 CyrilPeponnet ldconfing -v core dump due to inode mismatch.
17:28 CyrilPeponnet if I unmount the mount point (I'm using fuse gluster) then remount
17:29 CyrilPeponnet it works for a time then fail again
17:29 CyrilPeponnet using gluster server 3.6.5 and client 3.6.4
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17:48 livelace hagarth, Thanks for your help, http://fpaste.org/274648/98091714/
17:48 glusterbot Title: #274648 Fedora Project Pastebin (at fpaste.org)
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18:27 hagarth livelace: good to know!
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