Details
-
Bug
-
Resolution: Fixed
-
Minor
-
Lustre 2.7.0
-
None
-
lustre-master tag 2.6.93
-
3
-
17464
Description
When dealing with pools, you need to specify the file system name in front of the pool name as <fsname>.<pool_name>. The pool name, without the file system name, has a max length of 15 characters and is correctly enforced:
# lctl pool_new scratch.test_82b Pool scratch.test_82b created # lctl pool_new scratch.test_82abcdefgh Pool scratch.test_82abcdefgh created # lctl pool_new scratch.test_82abcdefghi poolname test_82abcdefghi is too long (length is 16 max is 15) argument scratch.test_82abcdefghi must be <fsname>.<poolname> pool_new: File name too long
Yet, when specifying a pool name in 'lfs setstripe', the file system name is used to compute the length of the pool name. The file system name is required when using the '-p' option in 'lfs setstripe' as in the second example below.
# /usr/bin/lfs setstripe -p scratch.test_82b -o 7936 /lustre/scratch/d82b.conf-sanity/f82b.conf-sanity error: setstripe: pool name 'scratch.test_82b' is too long (max is 15 characters) ... # /usr/bin/lfs setstripe -p test_82b -o 4 /lustre/scratch/d82b.conf-sanity/f82b.conf-sanity can't find fs root for '/lustre/scratch/d82b.conf-sanity': -19 '/lustre/scratch/d82b.conf-sanity/f82b.conf-sanity' is not on a Lustre filesystem: No such device (19) error: setstripe: create stripe file '/lustre/scratch/d82b.conf-sanity/f82b.conf-sanity' failed ...
This caused problems with the conf-sanity test 82b at https://testing.hpdd.intel.com/test_sets/e9152f7c-ade4-11e4-a0b6-5254006e85c2