[lustre-discuss] changelog filled mdt

John White jwhite at lbl.gov
Fri Nov 25 15:38:42 PST 2016


So, of course, we had an MDT fill up with changelogs during a day off.  I tried deregistering the changelog, that did not free up the space:

[root at io010 ~]# dmesg
Lustre: brc-MDD0000: changelog off
Lustre: 3433:0:(mdd_device.c:1358:mdd_changelog_user_purge()) Could not determine changelog records to purge; rc=0
Lustre: 3433:0:(mdd_device.c:1366:mdd_changelog_user_purge()) No entry for user 1.  Last changelog reference is 0 by changelog user 0
Lustre: 3306:0:(mdd_device.c:1358:mdd_changelog_user_purge()) Could not determine changelog records to purge; rc=0
Lustre: 3306:0:(mdd_device.c:1366:mdd_changelog_user_purge()) No entry for user 1.  Last changelog reference is 0 by changelog user 0
[root at io010 ~]#

Additionally, unmounting the mdt, forcing an e2fsck and remounting did not free space... Any ideas?


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