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  1. Lustre
  2. LU-16467

lod_trans_space_check() fails with -28 during file unlink

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    • Bug
    • Resolution: Unresolved
    • Major
    • None
    • None
    • None
    • 3
    • 9223372036854775807

    Description

      We have situation with striped directories and full MDTs. File unlink fails with -ENOSPC error.

      # lfs df
      UUID                   1K-blocks        Used   Available Use% Mounted on
      ai200x-MDT0000_UUID    139539628   133404116     3719624  98% /lustre/ai200x/client[MDT:0]
      ai200x-MDT0001_UUID    139539628   123157904    13966032  90% /lustre/ai200x/client[MDT:1]
      ai200x-MDT0002_UUID    139539628   137217096           0 100% /lustre/ai200x/client[MDT:2]
      ai200x-MDT0003_UUID    139539628   124383568    12740368  91% /lustre/ai200x/client[MDT:3]
      # rm -rf 542162
      rm: cannot remove '542162': No space left on device
      [root@ai200x-001 blogbench]# lfs getdirstripe 542162
      lmv_stripe_count: 3 lmv_stripe_offset: 1 lmv_hash_type: fnv_1a_64
      mdtidx		 FID[seq:oid:ver]
           1		 [0x240002b16:0x11cec:0x0]
           2		 [0x2c0001bba:0x11cec:0x0]
           3		 [0x280000c3e:0x86b8:0x0]
      
      [43349.098414] LustreError: 470595:0:(file.c:249:ll_close_inode_openhandle()) ai200x-clilmv-ff47cef76496c800: inode [0x240001b78:0x8a9c:0x0] mdc close failed: rc = -28
      

      File itself is placed on MDT0001 which has space but unlink operation calls OSP and failed on osp_statfs():

      osp_statfs()) ai200x-MDT0002-osp-MDT0001: 34884907 blocks, 598078 free, 0 avail
      ...
      lod_trans_space_check()) ai200x-MDT0002-osp-MDT0001: fail - target state 220: rc = -28
      
      

      So as result file is not removed because MDT0002 is full. This is the result of LU-14179 patch it seems and solution could be skipping lod_trans_space_check() for unlink operation.

      Attachments

        1. lustre2.log
          5.14 MB
          Mikhail Pershin

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              laisiyao Lai Siyao
              tappro Mikhail Pershin
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                Created:
                Updated: