[LU-2985] e2fsck fails and aborted if it generates the database for lfsck

• Type: Bug
• Resolution: Won't Fix
• Priority: Critical
• Environment: Lustre-2.1.0 CentOS5.5
• Severity: 1
• Assignee: Niu Yawei (Inactive)
• Reporter: Shuichi Ihara (Inactive)

Description

The customer's MDT crashed and they ran e2fsck and a lot of problem couldn't be fixed. They upgraded e2fsck to latest version and fixed corruptions with it and they are now going to lfsck before mount MDT.

However, when they ran e2fsck to generage database, we saw the following error messages and can't generate database from MDT.

/sbin/e2fsck -n -v --mdsdb /tmp/mdsdb /dev/ExHwRaid10VolGroup/mdt

MDS: got 4168 bytes = 521 entries in lov_objids
MDS: max_files = 288784110
MDS: num_osts = 521
mds info db file written
db->put failed
: DB_KEYEXIST: Key/data pair already exists
e2fsck: aborted