== sanity test 160w: lfs changelog --user --mask ========= 02:12:34 (1780467154)
mdd.lustre-MDT0000.changelog_mask=+hsm
mdd.lustre-MDT0001.changelog_mask=+hsm
Registered 2 changelog users: 'cl26-u1_160w cl6-u1_160w'
mdd.lustre-MDT0000.changelog_mask=+hsm
mdd.lustre-MDT0001.changelog_mask=+hsm
Registered 2 changelog users: 'cl26-u1_160w cl27-u2_160w cl6-u1_160w cl7-u2_160w'
current_index: 500097778
ID                            index (idle) mask
cl6-u1_160w               500097778 (3) mask=MARK,CREAT,UNLNK
cl7-u2_160w               500097778 (2) mask=MARK,MKDIR,RMDIR
lfs changelog --user (with different user formats)
lfs changelog --user (should show all registered records)
500097779 01CREAT 06:12:40.089450677 2026.06.03 0x0 t=[0x200002342:0x7f70:0x0] j=touch.0 ef=0x13 u=0:0 nid=192.168.203.55@tcp p=[0x200002342:0x7f6f:0x0] f1
500097781 01CREAT 06:12:40.107635665 2026.06.03 0x0 t=[0x200002342:0x7f71:0x0] j=touch.0 ef=0x13 u=0:0 nid=192.168.203.55@tcp p=[0x200002342:0x7f6f:0x0] f2
500097785 06UNLNK 06:12:40.156502669 2026.06.03 0x1 t=[0x200002342:0x7f70:0x0] j=rm.0 ef=0x13 u=0:0 nid=192.168.203.55@tcp p=[0x200002342:0x7f6f:0x0] f1
lfs changelog --user --mask (with registered mask)
500097783 02MKDIR 06:12:40.128886159 2026.06.03 0x0 t=[0x200002342:0x7f72:0x0] j=mkdir.0 ef=0x13 u=0:0 nid=192.168.203.55@tcp p=[0x200002342:0x7f6f:0x0] d1
500097784 02MKDIR 06:12:40.139028194 2026.06.03 0x0 t=[0x200002342:0x7f73:0x0] j=mkdir.0 ef=0x13 u=0:0 nid=192.168.203.55@tcp p=[0x200002342:0x7f6f:0x0] d2
500097786 07RMDIR 06:12:40.168616275 2026.06.03 0x1 t=[0x200002342:0x7f72:0x0] j=rmdir.0 ef=0x13 u=0:0 nid=192.168.203.55@tcp p=[0x200002342:0x7f6f:0x0] d1
lfs changelog --user --mask (including unregistered mask)
500097779 01CREAT 06:12:40.089450677 2026.06.03 0x0 t=[0x200002342:0x7f70:0x0] j=touch.0 ef=0x13 u=0:0 nid=192.168.203.55@tcp p=[0x200002342:0x7f6f:0x0] f1
500097781 01CREAT 06:12:40.107635665 2026.06.03 0x0 t=[0x200002342:0x7f71:0x0] j=touch.0 ef=0x13 u=0:0 nid=192.168.203.55@tcp p=[0x200002342:0x7f6f:0x0] f2
lustre-MDT0000: clear the changelog for cl6-u1_160w of all records
lustre-MDT0000: Deregistered changelog user #6
lustre-MDT0000: clear the changelog for cl7-u2_160w of all records
lustre-MDT0000: Deregistered changelog user #7
lustre-MDT0001: clear the changelog for cl26-u1_160w of all records
lustre-MDT0001: Deregistered changelog user #26
lustre-MDT0001: clear the changelog for cl27-u2_160w of all records
lustre-MDT0001: Deregistered changelog user #27
lustre-MDT0001: changelog user 'cl27-u2_160w' not found
lustre-MDT0000: changelog user 'cl7-u2_160w' not found
lustre-MDT0001: changelog user 'cl26-u1_160w' not found
lustre-MDT0000: changelog user 'cl6-u1_160w' not found