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Bug #16294

closed

rbd: map failed

Added by Ishmael Tsoaela almost 8 years ago. Updated almost 8 years ago.

Status:
Closed
Priority:
Normal
Assignee:
Ilya Dryomov
Category:
rbd
Target version:
-
% Done:

0%

Source:
other
Tags:
Backport:
Regression:
No
Severity:
3 - minor
Reviewed:
Affected Versions:
ceph-qa-suite:
Crash signature (v1):
Crash signature (v2):

Description

Hi,

Will someone please assist, I am trying to map image and this happens:

cluster-admin@nodeB:~/.ssh/ceph-cluster$ rbd map data_01 --pool data
rbd: sysfs write failed
In some cases useful info is found in syslog - try "dmesg | tail" or so.
rbd: map failed: (13) Permission denied

If someone could help it would be great

cluster-admin@nodeB:~/.ssh/ceph-cluster$ ceph -v
ceph version 10.2.1 (3a66dd4f30852819c1bdaa8ec23c795d4ad77269)

cluster-admin@nodeB:~/.ssh/ceph-cluster$ lsb_release -r
Release: 14.04

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 #1

Updated by Jason Dillaman almost 8 years ago

  • Project changed from rbd to Linux kernel client
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 #2

Updated by Jason Dillaman almost 8 years ago

  • Status changed from New to Need More Info

Did you check the output from dmesg?

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 #3

Updated by Ishmael Tsoaela almost 8 years ago

All I see in dmesg is :

cluster-admin@nodeB:~/.ssh/ceph-cluster$ dmesg |grep ceph
[144467.750580] init: ceph-osd (ceph/7) main process (15881) killed by KILL signal
[144467.750898] init: ceph-osd (ceph/6) main process (15597) killed by KILL signal
[149564.518270] Key type ceph registered
[149564.518444] libceph: loaded (mon/osd proto 15/24)
[149564.523476] libceph: client104114 fsid a04e9846-6c54-48ee-b26f-d6949d8bacb4
[149564.524231] libceph: mon0 155.232.195.4:6789 session established
[149584.762527] libceph: client104115 fsid a04e9846-6c54-48ee-b26f-d6949d8bacb4
[149584.763210] libceph: mon0 155.232.195.4:6789 session established
[149647.410620] libceph: client104116 fsid a04e9846-6c54-48ee-b26f-d6949d8bacb4
[149647.411321] libceph: mon0 155.232.195.4:6789 session established
cluster-admin@nodeB:~/.ssh/ceph-cluster$

It looks like a session is opened when I run the commands after restarting ceph:

cluster-admin@nodeB:~/.ssh/ceph-cluster$ rbd map data_01 --pool data
rbd: sysfs write failed

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 #4

Updated by Ishmael Tsoaela almost 8 years ago

Hi,

I disabled the "exclusive-lock, object-map, fast-diff,
deep-flatten" features on the image.

I can map image now. you can close the ticket

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 #5

Updated by Ilya Dryomov almost 8 years ago

  • Category set to rbd
  • Status changed from Need More Info to Closed
  • Assignee set to Ilya Dryomov

Kernels starting with 4.6 output an error to dmesg.

Newer rbd tool also prints a helpful message:

$ sudo rbd map foo
rbd: sysfs write failed
RBD image feature set mismatch. You can disable features unsupported by the kernel with "rbd feature disable".
In some cases useful info is found in syslog - try "dmesg | tail" or so.
rbd: map failed: (6) No such device or address

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