[root@c1 ~]# rm -rf /mnt/lustre/DDD
[root@c1 ~]# mkdir /mnt/lustre/DDD
[root@c1 ~]# sleep 20
[root@c1 ~]# lctl clear
[root@c1 ~]# stat /mnt/lustre/DDD/SSS; lctl dk | grep SSS
stat: cannot stat `/mnt/lustre/DDD/SSS': No such file or directory
00000080:00200000:0.0:1312211676.007681:0:24069:0:(namei.c:525:ll_lookup_it()) VFS Op:name=SSS,dir=144115205255725063/33554436(ffff81001fdc72d0),intent=getattr
00800000:00000002:0.0:1312211676.007684:0:24069:0:(lmv_intent.c:524:lmv_intent_lock()) INTENT LOCK 'getattr' for 'SSS' on [0x200000400:0x7:0x0]
00800000:00000002:0.0:1312211676.007687:0:24069:0:(lmv_intent.c:405:lmv_intent_lookup()) LOOKUP_INTENT with fid1=[0x200000400:0x7:0x0], fid2=[0x0:0x0:0x0], name='SSS' -> mds #0
00000002:00010000:0.0:1312211676.007689:0:24069:0:(mdc_locks.c:917:mdc_intent_lock()) (name: SSS,[0x0:0x0:0x0]) in obj [0x200000400:0x7:0x0], intent: getattr flags 00
00000004:00000002:0.0:1312211676.007741:0:3199:0:(mdt_handler.c:866:mdt_getattr_name_lock()) getattr with lock for [0x200000400:0x7:0x0]/SSS, ldlm_rep = ffff81001ce831d8
00000002:00002000:0.0:1312211676.007962:0:24069:0:(mdc_locks.c:844:mdc_finish_intent_lock()) D_IT dentry SSS intent: getattr status 0 disp 7 rc 0
00000080:00002000:0.0:1312211676.007965:0:24069:0:(dcache.c:182:ll_set_dd()) ldd on dentry SSS (ffff810030534660) parent ffff81001ca4ced0 inode 0000000000000000 refc 1
00000080:00002000:0.0:1312211676.007978:0:24069:0:(dcache.c:161:ll_ddelete()) keeping dentry SSS (ffff810030534660, parent ffff81001ca4ced0, inode 0000000000000000) hashed,
[root@c1 ~]# cat /mnt/lustre/DDD/SSS; lctl dk | grep SSS
cat: /mnt/lustre/DDD/SSS: No such file or directory
00000080:00002000:0.0:1312211676.156574:0:24084:0:(dcache.c:102:ll_dcompare()) found name SSS(ffff810030534660) - flags 0/0 - refc 0
00000080:00200000:0.0:1312211676.156576:0:24084:0:(dcache.c:408:ll_revalidate_it()) VFS Op:name=SSS,intent=open
00000080:00002000:0.0:1312211676.156585:0:24084:0:(dcache.c:161:ll_ddelete()) keeping dentry SSS (ffff810030534660, parent ffff81001ca4ced0, inode 0000000000000000) hashed,
[root@c1 ~]# cat /mnt/lustre/DDD/XXX; lctl dk | grep XXX
cat: /mnt/lustre/DDD/XXX: No such file or directory
00000080:00200000:0.0:1312211676.261113:0:24099:0:(namei.c:525:ll_lookup_it()) VFS Op:name=XXX,dir=144115205255725063/33554436(ffff81001fdc72d0),intent=open
00800000:00000002:0.0:1312211676.261116:0:24099:0:(lmv_intent.c:524:lmv_intent_lock()) INTENT LOCK 'open' for 'XXX' on [0x200000400:0x7:0x0]
00800000:00000002:0.0:1312211676.261120:0:24099:0:(lmv_intent.c:239:lmv_intent_open()) OPEN_INTENT with fid1=[0x200000400:0x7:0x0], fid2=[0x0:0x0:0x0], name='XXX' -> mds #0
00000002:00010000:0.0:1312211676.261121:0:24099:0:(mdc_locks.c:917:mdc_intent_lock()) (name: XXX,[0x0:0x0:0x0]) in obj [0x200000400:0x7:0x0], intent: open flags 0100001
00000004:00000002:0.0:1312211676.261265:0:3199:0:(mdt_open.c:1228:mdt_reint_open()) I am going to open [0x200000400:0x7:0x0]/(XXX->[0x0:0x0:0x0]) cr_flag=01 mode=0100000 msg_flag=0x0
[root@c1 ~]# cat /mnt/lustre/DDD/XXX; lctl dk | grep XXX
cat: /mnt/lustre/DDD/XXX: No such file or directory
00000080:00200000:0.0:1312211676.356237:0:24114:0:(namei.c:525:ll_lookup_it()) VFS Op:name=XXX,dir=144115205255725063/33554436(ffff81001fdc72d0),intent=open
00800000:00000002:0.0:1312211676.356241:0:24114:0:(lmv_intent.c:524:lmv_intent_lock()) INTENT LOCK 'open' for 'XXX' on [0x200000400:0x7:0x0]
00800000:00000002:0.0:1312211676.356244:0:24114:0:(lmv_intent.c:239:lmv_intent_open()) OPEN_INTENT with fid1=[0x200000400:0x7:0x0], fid2=[0x0:0x0:0x0], name='XXX' -> mds #0
00000002:00010000:0.0:1312211676.356246:0:24114:0:(mdc_locks.c:917:mdc_intent_lock()) (name: XXX,[0x0:0x0:0x0]) in obj [0x200000400:0x7:0x0], intent: open flags 0100001
00000004:00000002:0.0:1312211676.356392:0:3199:0:(mdt_open.c:1228:mdt_reint_open()) I am going to open [0x200000400:0x7:0x0]/(XXX->[0x0:0x0:0x0]) cr_flag=01 mode=0100000 msg_flag=0x0