Re: rbd command anomaly

[EP Komarla <Ep.Komarla@xxxxxxxxxxxxxxx>]

Thanks.  It works.

 

From: c.y. lee [mailto:cy.l@xxxxxxxxxxxxxx]
Sent: Wednesday, July 13, 2016 6:17 PM
To: EP Komarla <Ep.Komarla@xxxxxxxxxxxxxxx>
Cc: ceph-users@xxxxxxxxxxxxxx
Subject: Re: [ceph-users] rbd command anomaly

 

Hi,

 

You need to specify pool name.

 

    rbd -p testpool info testvol11

 

On Thu, Jul 14, 2016 at 8:55 AM, EP Komarla <Ep.Komarla@xxxxxxxxxxxxxxx> wrote:

Hi,

 

I am seeing an issue.  I created 5 images testvol11-15 and I mapped them to /dev/rbd0-4.  When I execute the command ‘rbd showmapped’, it shows correctly the image and the mappings as shown below:

 

[root@ep-compute-2-16 run1]# rbd showmapped

id pool     image     snap device

0  testpool testvol11 -    /dev/rbd0

1  testpool testvol12 -    /dev/rbd1

2  testpool testvol13 -    /dev/rbd2

3  testpool testvol14 -    /dev/rbd3

4  testpool testvol15 -    /dev/rbd4

 

I created image by this command:

rbd create testvol11 -p testpool --size 5120000 -m ep-compute-2-15

 

mapping was done using this command:

rbd map testvol11 -p testpool --name client.admin -m ep-compute-2-15

 

However, when I try to find details about each image it is failing

 

[root@ep-compute-2-16 run1]# rbd info testvol11

2016-07-13 17:50:23.093293 7f3372c1a7c0 -1 librbd::ImageCtx: error finding header: (2) No such file or directory

rbd: error opening image testvol11: (2) No such file or directory

 

Even the image list fails:

[root@ep-compute-2-16 run1]# rbd ls

[root@ep-compute-2-16 run1]#

 

Unable to understand why I am seeing this anomaly.  Any clues or pointers are appreciated.

 

Thanks,

 

- epk

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