[caasp-beta] BTRFS space and quota
Le Bihan Stéphane (AMUNDI-ITS)
stephane.lebihan at amundi.com
Thu Nov 2 04:35:13 MDT 2017
Hi Paul,
The result of command snapper ls.
# snapper ls
Type | # | Pre # | Date | User | Cleanup | Description | Userdata
-------+---+-------+---------------------------------+------+---------+-----------------------+---------
single | 0 | | | root | | current |
single | 1 | | Fri 06 Oct 2017 08:47:14 AM UTC | root | | first root filesystem |
I delete quota on /var/lb/etcd, and test balance but it’s not ok.
I recreate quota and rescan and value is same before deletion.
For information I launch du –sh on / and result is 7.8Go.
# du -sh /
du: cannot access '/proc/7982/task/7982/fd/4': No such file or directory
du: cannot access '/proc/7982/task/7982/fdinfo/4': No such file or directory
du: cannot access '/proc/7982/fd/3': No such file or directory
du: cannot access '/proc/7982/fdinfo/3': No such file or directory
7.8G /
Regards,
[cid:image001.gif at 01D353CE.6824B1C0]
Stéphane Le Bihan
SDE/DSI/IPR/SSD/UNX
90, Boulevard Pasteur - 75015 Paris
Web: http://www.amundi.com<http://www.amundi.com/>
Tél: +33 1 76 32 32 08
Equipe Unix : +33 1 76 32 02 30
@: stephane.lebihan at amundi.com<mailto:stephane.lebihan at amundi.com>
@ : sits.unix at amundi.com<mailto:sits.unix at amundi.com>
De : Paul Gonin [mailto:paul.gonin at suse.com]
Envoyé : jeudi 2 novembre 2017 10:55
À : Le Bihan Stéphane (AMUNDI-ITS); caasp-beta at lists.suse.com
Objet : Re: [caasp-beta] BTRFS space and quota
Hi Stephane,
What is the output of
# snapper ls
?
I assume that since you there were no updates yet it should look like
Type | # | Pre # | Date | User | Cleanup | Description | Userdata
-------+---+-------+--------------------------+------+---------+-----------------------+--------------
single | 0 | | | root | | current |
single | 1 | | Tue Oct 31 09:07:13 2017 | root | | first root filesystem |
single | 2 | | Tue Oct 31 09:10:42 2017 | root | number | after installation | important=yes
rgds
Paul
Le mardi 31 octobre 2017 à 13:38 +0000, Le Bihan Stéphane (AMUNDI-ITS) a écrit :
Hi Paul,
We work with CaaSP2.
Regards,
[cid:image001.gif at 01D353CE.6824B1C0]
Stéphane Le Bihan
SDE/DSI/IPR/SSD/UNX
90, Boulevard Pasteur - 75015 Paris
Web: http://www.amundi.com<http://www.amundi.com/>
Tél: +33 1 76 32 32 08
Equipe Unix : +33 1 76 32 02 30
@: stephane.lebihan at amundi.com<mailto:stephane.lebihan at amundi.com>
@ : sits.unix at amundi.com<mailto:sits.unix at amundi.com>
De : Paul Gonin [mailto:paul.gonin at suse.com]
Envoyé : mardi 31 octobre 2017 14:34
À : Le Bihan Stéphane (AMUNDI-ITS); caasp-beta at lists.suse.com<mailto:caasp-beta at lists.suse.com>
Objet : Re: [caasp-beta] BTRFS space and quota
Hi Stéphane,
Not that it should make a difference for the issue described, what version of CaaSP the cluster is running ?
Is it CaaSP2 ? RC1 ?
thanks
Paul
Le mardi 31 octobre 2017 à 08:35 +0000, Le Bihan Stéphane (AMUNDI-ITS) a écrit :
Hello,
We have a strange case on CAASP plateform with btrfs quota.
For history, I was out of office since 3 weeks, but others colleague test kubernetes plateform.
When I return, we ask me because FS is full on master and worker nodes.
I don’t have cause, but I think with a bad config, subvolume /var/lib/etcd grown and after correction reduce, though quota reserved all space.
When I check, I see btrfs usage and it’s really full, but balance as no effect.
After search I see quota is activate, and subvolumes /var/lib/etcd reserved 90% of space. But I don’t succeed to release this space.
Can you help me for release space disk ?
· On master :
# btrfs filesystem usage /
Overall:
Device size: 30.00GiB
Device allocated: 29.99GiB
Device unallocated: 17.00MiB
Device missing: 0.00B
Used: 27.56GiB
Free (estimated): 504.93MiB (min: 496.43MiB)
Data ratio: 1.00
Metadata ratio: 2.00
Global reserve: 16.00MiB (used: 0.00B)
Data,single: Size:27.97GiB, Used:27.49GiB
/dev/vda6 27.97GiB
Metadata,DUP: Size:1.00GiB, Used:32.64MiB
/dev/vda6 2.00GiB
System,DUP: Size:9.50MiB, Used:16.00KiB
/dev/vda6 19.00MiB
Unallocated:
/dev/vda6 17.00MiB
# btrfs fi df /
Data, single: total=27.97GiB, used=27.50GiB
System, DUP: total=9.50MiB, used=16.00KiB
Metadata, DUP: total=1.00GiB, used=32.66MiB
GlobalReserve, single: total=16.00MiB, used=0.00B
# btrfs fi show /
Label: none uuid: 1b0614eb-fc59-4841-bbc5-5318087f6432
Total devices 1 FS bytes used 27.53GiB
devid 1 size 30.00GiB used 29.99GiB path /dev/vda6
# btrfs subvolume list /
ID 257 gen 40 top level 5 path @
ID 258 gen 194820 top level 257 path @/.snapshots
ID 259 gen 197128 top level 258 path @/.snapshots/1/snapshot
ID 260 gen 194810 top level 257 path @/boot/grub2/i386-pc
ID 261 gen 194810 top level 257 path @/boot/grub2/x86_64-efi
ID 262 gen 194810 top level 257 path @/cloud-init-config
ID 263 gen 194810 top level 257 path @/home
ID 264 gen 197081 top level 257 path @/root
ID 265 gen 197111 top level 257 path @/tmp
ID 266 gen 194809 top level 257 path @/var/cache
ID 267 gen 194809 top level 257 path @/var/crash
ID 268 gen 195783 top level 257 path @/var/lib/ca-certificates
ID 269 gen 195783 top level 257 path @/var/lib/cloud
ID 270 gen 24 top level 257 path @/var/lib/docker
ID 271 gen 194810 top level 257 path @/var/lib/dockershim
ID 272 gen 195719 top level 257 path @/var/lib/etcd
ID 273 gen 194810 top level 257 path @/var/lib/kubelet
ID 274 gen 194810 top level 257 path @/var/lib/machines
ID 275 gen 196430 top level 257 path @/var/lib/misc
ID 276 gen 194810 top level 257 path @/var/lib/mysql
ID 277 gen 194810 top level 257 path @/var/lib/nfs
ID 278 gen 194810 top level 257 path @/var/lib/ntp
ID 279 gen 196428 top level 257 path @/var/lib/overlay
ID 280 gen 194810 top level 257 path @/var/lib/rollback
ID 281 gen 196427 top level 257 path @/var/lib/systemd
ID 282 gen 194810 top level 257 path @/var/lib/vmware
ID 283 gen 194810 top level 257 path @/var/lib/wicked
ID 284 gen 197128 top level 257 path @/var/log
ID 285 gen 197111 top level 257 path @/var/spool
ID 286 gen 196428 top level 257 path @/var/tmp
# btrfs qgroup show -pcreFf /var/lib/etcd
qgroupid rfer excl max_rfer max_excl parent child
-------- ---- ---- -------- -------- ------ -----
0/272 25.14GiB 25.14GiB none none --- ---
# du -sh /var/lib/etcd/
417M /var/lib/etcd/
· On one worker
# btrfs fi usage /
Overall:
Device size: 30.00GiB
Device allocated: 30.00GiB
Device unallocated: 1.00MiB
Device missing: 0.00B
Used: 27.94GiB
Free (estimated): 135.28MiB (min: 135.28MiB)
Data ratio: 1.00
Metadata ratio: 2.00
Global reserve: 16.00MiB (used: 0.00B)
Data,single: Size:27.99GiB, Used:27.86GiB
/dev/vda6 27.99GiB
Metadata,DUP: Size:1.00GiB, Used:43.44MiB
/dev/vda6 2.00GiB
System,DUP: Size:8.00MiB, Used:16.00KiB
/dev/vda6 16.00MiB
Unallocated:
/dev/vda6 1.00MiB
# btrfs fi df /
Data, single: total=27.99GiB, used=27.86GiB
System, DUP: total=8.00MiB, used=16.00KiB
Metadata, DUP: total=1.00GiB, used=43.44MiB
GlobalReserve, single: total=16.00MiB, used=0.00B
# btrfs fi show /
Label: none uuid: 1d7b76f8-f91c-47e0-8be2-a3f02f90ac96
Total devices 1 FS bytes used 27.90GiB
devid 1 size 30.00GiB used 30.00GiB path /dev/vda6
# btrfs qgroup show -pcreFf /var/lib/etcd
qgroupid rfer excl max_rfer max_excl parent child
-------- ---- ---- -------- -------- ------ -----
0/272 20.99GiB 20.99GiB none none --- ---
# du -sh /var/lib/etcd/
452M /var/lib/etcd/
Regards,
[cid:image001.gif at 01D353CE.6824B1C0]
Stéphane Le Bihan
SDE/DSI/IPR/SSD/UNX
90, Boulevard Pasteur - 75015 Paris
Web: http://www.amundi.com<http://www.amundi.com/>
Tél: +33 1 76 32 32 08
Equipe Unix : +33 1 76 32 02 30
@: stephane.lebihan at amundi.com<mailto:stephane.lebihan at amundi.com>
@ : sits.unix at amundi.com<mailto:sits.unix at amundi.com>
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