Re: remove big rbd image is very slow

"shadow_lin"<shadow_lin@xxxxxxx> · Tue, 27 Mar 2018 22:27:06 +0800

I did have done that before, but in most time I can't just delete the 
pool.
Is there any other way to speed up the rbd image deletion?

2018-03-27 

shadowlin

  发件人：Ilya Dryomov <idryomov@xxxxxxxxx>
  发送时间：2018-03-26 20:09
  主题：Re: [ceph-users] remove big rbd image is very 
  slow
  收件人："shadow_lin"<shadow_lin@xxxxxxx>
  抄送："ceph-users"<ceph-users@xxxxxxxxxxxxxx>

  On Sat, Mar 17, 2018 at 5:11 PM, shadow_lin <shadow_lin@xxxxxxx> wrote: 
  > Hi list, 
  > My ceph version is jewel 10.2.10. 
  > I tired to use rbd rm to remove a 50TB image(without object map because krbd 
  > does't support it).It takes about 30mins to just complete about 3%. Is this 
  > expected? Is there a way to make it faster? 
  > I know there are scripts to delete rados objects of the rbd image to make it 
  > faster. But is the slowness expected for rbd rm command? 
  > 
  > PS: I also encounter very slow rbd export for large rbd image(20TB image but 
  > with only a few GB data).Takes hours to completed the export.I guess both 
  > are related to object map not enabled, but krbd doesn't support object map 
  > feature. 

  If you don't have any other images in that pool, you can simply delete 
  the pool with "ceph osd pool delete".  It'll take a second ;) 

  Thanks, 

                  Ilya 
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