Re: Rbd map command doesn't work

[Somnath Roy <Somnath.Roy@xxxxxxxxxxx>]

The default format of rbd image in jewel is 2 along with bunch of other deatures enabled , so, you have following two option:

 

1. create a format 1 image –image-format 1

 

2. Or, do this in the ceph.conf file [client] or [global] before creating image..

rbd_default_features = 3

 

Thanks & Regards

Somnath

 

From: ceph-users [mailto:ceph-users-bounces@xxxxxxxxxxxxxx] On Behalf Of EP Komarla
Sent: Tuesday, August 16, 2016 2:52 PM
To: ceph-users@xxxxxxxxxxxxxx
Subject: Rbd map command doesn't work

 

All,

 

I am creating an image and mapping it.  The below commands used to work in Hammer, now the same is not working in Jewel.  I see the message about some feature set mismatch – what features are we talking about here?  Is this a known issue in Jewel with a workaround?

 

Thanks,

 

- epk

 

=========

 

 

[test@ep-c2-client-01 ~]$  rbd create rbd/test1 --size 1G

[test@ep-c2-client-01 ~]$ rbd info test1

rbd image 'test1':

        size 1024 MB in 256 objects

        order 22 (4096 kB objects)

        block_name_prefix: rbd_data.8146238e1f29

        format: 2

        features: layering, exclusive-lock, object-map, fast-diff, deep-flatten

        flags:

[test@ep-c2-client-01 ~]$ rbd map rbd/test1

rbd: sysfs write failed

In some cases useful info is found in syslog - try "dmesg | tail" or so.

rbd: map failed: (13) Permission denied

[test@ep-c2-client-01 ~]$ dmesg|tail

[1197731.547522] libceph: mon1 172.20.60.52:6789 feature set mismatch, my 102b84a842a42 < server's 40102b84a842a42, missing 400000000000000

[1197731.554621] libceph: mon1 172.20.60.52:6789 missing required protocol features

[1197741.571645] libceph: mon2 172.20.60.53:6789 feature set mismatch, my 102b84a842a42 < server's 40102b84a842a42, missing 400000000000000

[1197741.578760] libceph: mon2 172.20.60.53:6789 missing required protocol features

[1198586.766120] libceph: mon1 172.20.60.52:6789 feature set mismatch, my 102b84a842a42 < server's 40102b84a842a42, missing 400000000000000

[1198586.771248] libceph: mon1 172.20.60.52:6789 missing required protocol features

[1198596.789453] libceph: mon0 172.20.60.51:6789 feature set mismatch, my 102b84a842a42 < server's 40102b84a842a42, missing 400000000000000

[1198596.796557] libceph: mon0 172.20.60.51:6789 missing required protocol features

[1198606.813825] libceph: mon1 172.20.60.52:6789 feature set mismatch, my 102b84a842a42 < server's 40102b84a842a42, missing 400000000000000

[1198606.820929] libceph: mon1 172.20.60.52:6789 missing required protocol features

[test@ep-c2-client-01 ~]$ sudo rbd map rbd/test1

 

 

EP KOMARLA,

Emal: EP.KOMARLA@xxxxxxxxxxxxxxx

Address: 677 Gibraltor Ct, Building #2, Milpitas, CA 94035, USA

Phone: 408-674-6090 (mobile)

 

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