Hi!
I use ceph pool mounted via cephfs for cloudstack secondary storage
and have problem with consistency of files stored on it.
I have uploaded file for three time and checked it, but at each time i
have got different checksum (at second time it was a valid checksum).
Each try of upload gave permanent result (I checked twice each time),
but each next try did different one.
Please help me with finding of PoF.
root@lw01p01-mgmt01:/export/secondary# uname -a
Linux lw01p01-mgmt01 3.14.1-031401-generic #201404141220 SMP Mon Apr
14 16:21:48 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
root@lw01p01-mgmt01:/export/secondary# ceph status
cluster e405d974-3fb6-42c8-b34a-a0ac5a1fef3a
health HEALTH_OK
monmap e1: 3 mons at
{lw01p01-node01=10.0.15.1:6789/0,lw01p01-node02=10.0.15.2:6789/0,lw01p01-node03=10.0.15.3:6789/0},
election epoch 52, quorum 0,1,2
lw01p01-node01,lw01p01-node02,lw01p01-node03
mdsmap e17: 1/1/1 up {0=lw01p01-node01=up:active}
osdmap e338: 20 osds: 20 up, 20 in
pgmap v160161: 656 pgs, 6 pools, 30505 MB data, 8159 objects
61377 MB used, 25512 GB / 25572 GB avail
656 active+clean
client io 0 B/s rd, 1418 B/s wr, 1 op/s
root@lw01p01-mgmt01:/export/secondary# mount | grep ceph
10.0.15.1:/ on /export/secondary type ceph
(name=cloudstack,key=client.cloudstack)
root@lw01p01-mgmt01:/export/secondary# cephfs /export/secondary show_layout
layout.data_pool: 3
layout.object_size: 4194304
layout.stripe_unit: 4194304
layout.stripe_count: 1
root@lw01p01-mgmt01:/export/secondary# wget
http://lw01p01-templates01.example.com/ISO/XXX.iso
--2014-08-27 10:12:39-- http://lw01p01-templates01.example.com/ISO/XXX.iso
Resolving lw01p01-templates01.example.com
(lw01p01-templates01.example.com)... 10.0.15.1
Connecting to lw01p01-templates01.example.com
(lw01p01-templates01.example.com)|10.0.15.1|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 3249803264 (3.0G) [application/x-iso9660-image]
Saving to: ‘XXX.iso’
100%[=====================================================>]
3,249,803,264 179MB/s in 18s
2014-08-27 10:12:57 (173 MB/s) - ‘XXX.iso’ saved [3249803264/3249803264]
root@lw01p01-mgmt01:/export/secondary# md5sum XXX.iso
45b940c6cb76ed0e76c9fac4cba01c3c XXX.iso
root@lw01p01-mgmt01:/export/secondary# md5sum XXX.iso
45b940c6cb76ed0e76c9fac4cba01c3c XXX.iso
root@lw01p01-mgmt01:/export/secondary# wget
http://lw01p01-templates01.example.com/ISO/XXX.iso
--2014-08-27 10:14:11-- http://lw01p01-templates01.example.com/ISO/XXX.iso
Resolving lw01p01-templates01.example.com
(lw01p01-templates01.example.com)... 10.0.15.1
Connecting to lw01p01-templates01.example.com
(lw01p01-templates01.example.com)|10.0.15.1|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 3249803264 (3.0G) [application/x-iso9660-image]
Saving to: ‘XXX.iso.1’
100%[=====================================================>]
3,249,803,264 154MB/s in 19s
2014-08-27 10:14:30 (161 MB/s) - ‘XXX.iso.1’ saved [3249803264/3249803264]
root@lw01p01-mgmt01:/export/secondary# md5sum XXX.iso.1
5488d85797cd53d1d1562e73122522c1 XXX.iso.1
root@lw01p01-mgmt01:/export/secondary# md5sum XXX.iso.1
5488d85797cd53d1d1562e73122522c1 XXX.iso.1
root@lw01p01-mgmt01:/export/secondary# wget
http://lw01p01-templates01.example.com/ISO/XXX.iso
--2014-08-27 10:15:23-- http://lw01p01-templates01.example.com/ISO/XXX.iso
Resolving lw01p01-templates01.example.com
(lw01p01-templates01.example.com)... 10.0.15.1
Connecting to lw01p01-templates01.example.com
(lw01p01-templates01.example.com)|10.0.15.1|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 3249803264 (3.0G) [application/x-iso9660-image]
Saving to: ‘XXX.iso.2’
100%[=====================================================>]
3,249,803,264 160MB/s in 20s
2014-08-27 10:15:44 (152 MB/s) - ‘XXX.iso.2’ saved [3249803264/3249803264]
root@lw01p01-mgmt01:/export/secondary# md5sum XXX.iso.2
5e28d425f828440b025d769609c5bb41 XXX.iso.2
root@lw01p01-mgmt01:/export/secondary# md5sum XXX.iso.2
5e28d425f828440b025d769609c5bb41 XXX.iso.2
--
Michael Kolomiets
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