We have 2 ocfs2 filesystems on our 6 node cluster running OEL5.10 that were created before indexed-dirs were active by default.
We were having lag in accessing sub directories that contained 10s of thousands of files, so thought adding the indexes would help, and it did for D/Q, we ran into this in our PROD environment. [root@sahp9465 ~]#cat /etc/redhat-release Red Hat Enterprise Linux Server release 5.10 (Tikanga) [root@sahp9465 ~]#uname -r 2.6.32-400.33.3.el5uek [root@sahp9465 ~]#rpm -qa |grep ocfs2 ocfs2-tools-1.8.0-11.el5 adding the indexes to the first filesystem went fine, but adding to the 2nd resulted in errors tunefs.ocfs2: Install directory trailer failed while enable indexed-dirs tunefs.ocfs2: Install directory trailer failed while building indexed trees The FS was fsck.ocfs2 prior to the attempt to add indexed-dirs and came back clean. I then fsck'd again and removed the feature as it said it was enabled, and I didn't want corruption similar to as seen in : https://oss.oracle.com/pipermail/ocfs2-users/2012-May/005749.html [root@HOST ~]#fsck.ocfs2 -y /dev/mapper/oapr1p1 fsck.ocfs2 1.8.0 Checking OCFS2 filesystem in /dev/mapper/oapr1p1: Label: oapr1p1 UUID: C257DA6F9C2E487D9AFD2602064AC2B3 Number of blocks: 131070310 Block size: 4096 Number of clusters: 131070310 Cluster size: 4096 Number of slots: 16 /dev/mapper/oapr1p1 is clean. It will be checked after 20 additional mounts. [root@HOST ~]#tunefs.ocfs2 -Q "Features enabled = %H\n" /dev/mapper/oapr1p1 Features enabled = sparse inline-data xattr [root@HOST ~]#time tunefs.ocfs2 -vv --fs-features=indexed-dirs /dev/mapper/oapr1p1 Enabling feature "indexed_dirs" Opening device "/dev/mapper/oapr1p1" Asking for 4096 blocks of I/O cache Got 4096 blocks Asking for 2048 blocks of I/O cache Got 2048 blocks Checking for dirty journals Verifying the global allocator Device "/dev/mapper/oapr1p1" opened Opening device "/dev/mapper/oapr1p1" Verifying the global allocator Device "/dev/mapper/oapr1p1" opened Opening device "/dev/mapper/oapr1p1" Verifying the global allocator Device "/dev/mapper/oapr1p1" opened tunefs.ocfs2: Install directory trailer failed while enable indexed-dirs tunefs.ocfs2: Install directory trailer failed while building indexed trees Closing device "/dev/mapper/oapr1p1" Device closed Closing device "/dev/mapper/oapr1p1" Device closed Closing device "/dev/mapper/oapr1p1" Verifying the global allocator Device closed [root@HOST ~]#time tunefs.ocfs2 -vv --fs-features=indexed-dirs /dev/mapper/oapr1p1 Enabling feature "indexed_dirs" Opening device "/dev/mapper/oapr1p1" Asking for 4096 blocks of I/O cache Got 4096 blocks Asking for 2048 blocks of I/O cache Got 2048 blocks Checking for dirty journals Verifying the global allocator Device "/dev/mapper/oapr1p1" opened Opening device "/dev/mapper/oapr1p1" Verifying the global allocator Device "/dev/mapper/oapr1p1" opened Opening device "/dev/mapper/oapr1p1" Verifying the global allocator Device "/dev/mapper/oapr1p1" opened Directory indexing feature is already enabled; nothing to enable Closing device "/dev/mapper/oapr1p1" Device closed Closing device "/dev/mapper/oapr1p1" Device closed Closing device "/dev/mapper/oapr1p1" Verifying the global allocator Device closed (reverse-i-search)`fsc': fsck.ocfs2 -y /dev/mapper/oapr1p1 [root@HOST ~]#fsck.ocfs2 -y /dev/mapper/oapr1p1 fsck.ocfs2 1.8.0 Checking OCFS2 filesystem in /dev/mapper/oapr1p1: Label: oapr1p1 UUID: C257DA6F9C2E487D9AFD2602064AC2B3 Number of blocks: 131070310 Block size: 4096 Number of clusters: 131070310 Cluster size: 4096 Number of slots: 16 /dev/mapper/oapr1p1 is clean. It will be checked after 20 additional mounts. [root@HOST ~]# Display all 3129 possibilities? (y or n) [root@HOST ~]#tunefs.ocfs2 -Q "Features enabled = %H\n" /dev/mapper/oapr1p1 Features enabled = sparse inline-data xattr indexed-dirs [root@HOST ~]#time tunefs.ocfs2 -vv --fs-features=noindexed-dirs /dev/mapper/oapr1p1 Disabling feature "indexed_dirs" Opening device "/dev/mapper/oapr1p1" Asking for 4096 blocks of I/O cache Got 4096 blocks Asking for 2048 blocks of I/O cache Got 2048 blocks Checking for dirty journals Verifying the global allocator Device "/dev/mapper/oapr1p1" opened Opening device "/dev/mapper/oapr1p1" Verifying the global allocator Device "/dev/mapper/oapr1p1" opened Opening device "/dev/mapper/oapr1p1" Verifying the global allocator Device "/dev/mapper/oapr1p1" opened We have 5 indexed directories to truncate. "5" from "5" indexed directories are truncated.Closing device "/dev/mapper/oapr1p1" Device closed Closing device "/dev/mapper/oapr1p1" Device closed Closing device "/dev/mapper/oapr1p1" Verifying the global allocator Device closed real 21m43.166s user 0m11.923s sys 0m19.696s [root@HOST ~]#tunefs.ocfs2 -Q "Features enabled = %H\n" /dev/mapper/oapr1p1 Features enabled = sparse inline-data xattr Any suggestions would be greatly appreciated. Thanks, JD
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