In a test Lustre 2.4.0 filesystem we are running into difficulties
viewing the changelogs on the mds. Is there something I'm doing wrong
here? There are two clients registered, and I can see the current index
increment when I perform file creates/unlinks.
Any help would be greatly appreciated!
[root@sultan-mds1 ~]# lfs changelog lustre-MDT0000
can't find fs root for '(null)': -19
Can't open lustre-MDT0000: -19
Can't start changelog: No such device
[root@sultan-mds1 ~]# cat /proc/fs/lustre/mdd/lustre-MDT0000/changelog_users
current index: 120819
ID index
cl1 2962
cl2 2962
[root@sultan-mds1 ~]# lctl get_param mdd.*.changelog_mask
mdd.lustre-MDT0000.changelog_mask=
MARK CREAT MKDIR HLINK SLINK MKNOD UNLNK RMDIR RENME RNMTO OPEN LYOUT
TRUNC SATTR XATTR HSM MTIME CTIME
[root@sultan-mds1 ~]# tunefs.lustre --dryrun /dev/sda2
checking for existing Lustre data: found
Reading CONFIGS/mountdata
Read previous values:
Target: lustre-MDT0000
Index: 0
Lustre FS: lustre
Mount type: ldiskfs
Flags: 0x1
(MDT )
Persistent mount opts: user_xattr,errors=remount-ro
Parameters: mgsnode=10.37.248.68@o2ib1 sys.timeout=100
Permanent disk data:
Target: lustre-MDT0000
Index: 0
Lustre FS: lustre
Mount type: ldiskfs
Flags: 0x1
(MDT )
Persistent mount opts: user_xattr,errors=remount-ro
Parameters: mgsnode=10.37.248.68@o2ib1 sys.timeout=100
exiting before disk write.