On 11/26/2012 06:10 PM, brady wrote: > Hello, > I have a general question. Is there a specific character limit for > rbd block devices? In attempting to map a block device with a name that > is 36 characters or more, I am getting the following error: > > rbd map (36+ character name) --user admin --secret /etc/ceph/keyring.key > add failed: (2) No such file or directory We can set the maximum supported length almost arbitrarily high, although we use the image name in a path component. Linux limits such file names to 255 bytes normally. As Josh said, the limit is higher than what you mention. Do you have any thoughts on what constitutes a reasonable limit? Are you using some sort of naming convention that produces your 36+ byte image names? Thanks. -Alex > When using the same command to map a device with 35 characters or > less, the device is mapped as expected. Any insight into this issue > would be greatly appreciated. > > -Brady > -- > To unsubscribe from this list: send the line "unsubscribe ceph-devel" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
