Re: Quota Used Value Incorrect - Fix now or after upgrade

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+sanoj

----- Original Message -----
> From: "Matthew B" <matthew.has.questions@xxxxxxxxx>
> To: gluster-devel@xxxxxxxxxxx
> Sent: Saturday, August 26, 2017 12:45:19 AM
> Subject:  Quota Used Value Incorrect - Fix now or after	upgrade
> 
> Hello,
> 
> I need some advice on fixing an issue with quota on my gluster volume. It's
> running version 3.7, distributed volume, with 7 nodes.
> 
> # gluster --version
> glusterfs 3.7.13 built on Jul 8 2016 15:26:18
> Repository revision: git:// git.gluster.com/glusterfs.git
> Copyright (c) 2006-2011 Gluster Inc. < http://www.gluster.com >
> GlusterFS comes with ABSOLUTELY NO WARRANTY.
> You may redistribute copies of GlusterFS under the terms of the GNU General
> Public License.
> 
> # gluster volume info storage
> 
> Volume Name: storage
> Type: Distribute
> Volume ID: 6f95525a-94d7-4174-bac4-e1a18fe010a2
> Status: Started
> Number of Bricks: 7
> Transport-type: tcp
> Bricks:
> Brick1: 10.0.231.50:/mnt/raid6-storage/storage
> Brick2: 10.0.231.51:/mnt/raid6-storage/storage
> Brick3: 10.0.231.52:/mnt/raid6-storage/storage
> Brick4: 10.0.231.53:/mnt/raid6-storage/storage
> Brick5: 10.0.231.54:/mnt/raid6-storage/storage
> Brick6: 10.0.231.55:/mnt/raid6-storage/storage
> Brick7: 10.0.231.56:/mnt/raid6-storage/storage
> Options Reconfigured:
> changelog.changelog: on
> geo-replication.ignore-pid-check: on
> geo-replication.indexing: on
> nfs.disable: no
> performance.readdir-ahead: on
> features.quota: on
> features.inode-quota: on
> features.quota-deem-statfs: on
> features.read-only: off
> 
> # df -h /storage/
> Filesystem Size Used Avail Use% Mounted on
> 10.0.231.50:/storage 255T 172T 83T 68% /storage
> 
> 
> I am planning to upgrade to 3.10 (or 3.12 when it's available) but I have a
> number of quotas configured, and one of them (below) has a very wrong "Used"
> value:
> 
> # gluster volume quota storage list | egrep "MEOPAR "
> /data/projects/MEOPAR 8.5TB 80%(6.8TB) 16384.0PB 17.4TB No No
> 
> 
> I have confirmed the bad value appears in one of the bricks current xattrs,
> and it looks like the issue has been encountered previously on bricks 04,
> 03, and 06: (gluster07 does not have a trusted.glusterfs.quota.size.1 as it
> was recently added)
> 
> $ ansible -i hosts gluster-servers[0:6] -u <user> --ask-pass -m shell -b
> --become-method=sudo --ask-become-pass -a "getfattr --absolute-names -m . -d
> -e hex /mnt/raid6-storage/storage/data/projects/MEOPAR | egrep
> '^trusted.glusterfs.quota.size'"
> SSH password:
> SUDO password[defaults to SSH password]:
> 
> gluster02 | SUCCESS | rc=0 >>
> trusted.glusterfs.quota.size=0x0000011ecfa56c00000000000005cd6d000000000006d478
> trusted.glusterfs.quota.size.1=0x0000010ad4a452000000000000012a0300000000000150fa
> 
> gluster05 | SUCCESS | rc=0 >>
> trusted.glusterfs.quota.size=0x00000033b8e92200000000000004cde8000000000006b1a4
> trusted.glusterfs.quota.size.1=0x0000010dca277c00000000000001297d0000000000015005
> 
> gluster01 | SUCCESS | rc=0 >>
> trusted.glusterfs.quota.size=0x0000003d4d4348000000000000057616000000000006afd2
> trusted.glusterfs.quota.size.1=0x00000133fe211e00000000000005d161000000000006cfd4
> 
> gluster04 | SUCCESS | rc=0 >>
> trusted.glusterfs.quota.size=0xffffff396f3e9400000000000004d7ea0000000000068c62
> trusted.glusterfs.quota.size.1=0x00000106e6724800000000000001138f0000000000012fb2
> 
> gluster03 | SUCCESS | rc=0 >>
> trusted.glusterfs.quota.size=0xfffffd02acabf000000000000003599000000000000643e2
> trusted.glusterfs.quota.size.1=0x00000114e20f5e0000000000000113b30000000000012fb2
> 
> gluster06 | SUCCESS | rc=0 >>
> trusted.glusterfs.quota.size=0xffffff0c98de440000000000000536e40000000000068cf2
> trusted.glusterfs.quota.size.1=0x0000013532664e00000000000005e73f000000000006cfd4
> 
> gluster07 | SUCCESS | rc=0 >>
> trusted.glusterfs.quota.size=0xfffffa3d7c1ba60000000000000a9ccb000000000005fd2f
> 
> And reviewing the subdirectories of that folder on the impacted server you
> can see that none of the direct children have such incorrect values:
> 
> [root@gluster07 ~]# getfattr --absolute-names -m . -d -e hex
> /mnt/raid6-storage/storage/data/projects/MEOPAR/*
> # file: /mnt/raid6-storage/storage/data/projects/MEOPAR/<dir1 >
> ...
> trusted.glusterfs.quota.7209b677-f4b9-4d82-a382-0733620e6929.contri=0x000000fb6841820000000000000074730000000000000dae
> trusted.glusterfs.quota.dirty=0x3000
> trusted.glusterfs.quota.size=0x000000fb6841820000000000000074730000000000000dae
> 
> # file: /mnt/raid6-storage/storage/data/projects/MEOPAR/<dir2 >
> ...
> trusted.glusterfs.quota.7209b677-f4b9-4d82-a382-0733620e6929.contri=0x0000000416d5f4000000000000000baa0000000000000441
> trusted.glusterfs.quota.dirty=0x3000
> trusted.glusterfs.quota.limit-set=0x0000010000000000ffffffffffffffff
> trusted.glusterfs.quota.size=0x0000000416d5f4000000000000000baa0000000000000441
> 
> # file: /mnt/raid6-storage/storage/data/projects/MEOPAR/<dir3>
> ...
> trusted.glusterfs.quota.7209b677-f4b9-4d82-a382-0733620e6929.contri=0x000000110f2c4e00000000000002a76a000000000006ad7d
> trusted.glusterfs.quota.dirty=0x3000
> trusted.glusterfs.quota.limit-set=0x0000020000000000ffffffffffffffff
> trusted.glusterfs.quota.size=0x000000110f2c4e00000000000002a76a000000000006ad7d
> 
> 
> Can I fix this on the current version of gluster (3.7) on just the one brick
> before I upgrade? Or would I be better off upgrading to 3.10 and trying to
> fix it then?
> 
> I have reviewed information here:
> 
> http://lists.gluster.org/pipermail/gluster-devel/2016-February/048282.html
> http://lists.gluster.org/pipermail/gluster-users.old/2016-September/028365.html
> 
> It seems like since I am on Gluster 3.7 I can disable quotas and re-enable
> and everything will get recalculated and increment the index on the
> quota.size xattr. But with the size of the volume that will take a very long
> time.
> 
> Could I simply mark the impacted directly as dirty on gluster07? Or update
> the xattr directly as the sum of the size of dir1, 2, and 3?
> 
> Thanks,
> -Matthew
> 
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