[LU-3128] filter_fid on OST not updated during layout swap

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Duplicate
• Affects Version/s: Lustre 2.4.0
• Labels: mdd
• Severity: 3
• Assignee: Mikhail Pershin
• Reporter: John Hammond

Description

LMA on OST is not updated during layout swap.

# llmount.sh 
...
# cd /mnt/lustre
# lfs setstripe -c2 f0
# dd if=/dev/zero bs=1M count=2 | tr '\0' 'X' > f0
2+0 records in
2+0 records out
2097152 bytes (2.1 MB) copied, 0.0201865 s, 104 MB/s
# lfs getstripe f0
f0
lmm_stripe_count:   2
lmm_stripe_size:    1048576
lmm_layout_gen:     0
lmm_stripe_offset:  0
	obdidx		 objid		 objid		 group
	     0	             1	          0x1	             0
	     1	             1	          0x1	             0

# touch f1
# ls -lh
total 2.0M
-rw-r--r-- 1 root root 2.0M Apr  8 13:54 f0
-rw-r--r-- 1 root root    0 Apr  8 13:54 f1
# lfs path2fid f0
[0x200000400:0x1:0x0]
# lfs path2fid f1
[0x200000400:0x3:0x0]
# umount /mnt/ost1
# mount /tmp/lustre-ost1 /mnt/ost1 -t ldiskfs -o loop
# ls -lh /mnt/ost1/O/0/d1/1
-rw-rw-rw- 1 root root 1.0M Apr  8 13:54 /mnt/ost1/O/0/d1/1
# ll_decode_filter_fid /mnt/ost1/O/0/d1/1
/mnt/ost1/O/0/d1/1: objid=4294967296 seq=1 parent=[0x200000400:0x1:0x0]
# umount /mnt/ost1
# mount /tmp/lustre-ost1  /mnt/ost1 -t lustre -o loop
# lfs swap_layouts f0 f1
# ls -lh
total 2.0M
-rw-r--r-- 1 root root    0 Apr  8 13:57 f0
-rw-r--r-- 1 root root 2.0M Apr  8 13:57 f1
# umount /mnt/ost1
# mount /tmp/lustre-ost1 /mnt/ost1 -t ldiskfs -o loop
# ls -lh /mnt/ost1/O/0/d1/1
-rw-rw-rw- 1 root root 1.0M Apr  8 13:57 /mnt/ost1/O/0/d1/1
# ll_decode_filter_fid /mnt/ost1/O/0/d1/1
/mnt/ost1/O/0/d1/1: objid=4294967296 seq=1 parent=[0x200000400:0x1:0x0]

Issue Links

• is related to: LU-10248 Need to update PFID of OST objects after layout change
• is related to: LU-2677 Adding LMA to OST object