[LU-15471] sanity 17m, 17n, 228b, 256, 804 defect

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.15.0
• Affects Version/s: Lustre 2.15.0

Epic/Theme

patch

• Severity: 3
• Assignee: Elena Gryaznova
• Reporter: Elena Gryaznova

Description

Tests which stop facet are to recalculate facet device after stop as it changes when device mapper is used: the device-mapper device is removed and facet device is restored:

  stop () ->
     elif dm_flakey_supported $facet; then
        if [[ -n ${!failover_host} && ${!failover_host} != ${!host} ]]
           dm_cleanup_dev $facet ->
              unexport_dm_dev $facet

Without this fix sanity 17m, 17n 804 tests fail on failover setup with:

    Cannot resolve path /dev/mapper/mds1_flakey e2fsck: No such file or directory

while trying to open /dev/mapper/mds1_flakey and sanity 228b, 256 tests fail because of

  mount: /dev/mapper/mds1_flakey: failed to setup loop device:
                     No such file or directory
  losetup: /dev/mapper/mds1_flakey: failed to set up loop device

To reproduce the failures – just run:
ONLY="17m 17n 228b 256 804" sh sanity.sh
on failover setup where mds1_HOST != mds1failover_HOST.

Fixes: 54b9e3f ("LU-684 tests: replace dev_read_only patch with dm-flakey")