[lustre-discuss] Errors large directory feature ldiskfs

[Fernando Perez]

Dear all.

We have a lustre system with combined mds + mdt ldiskfs and several osts 
with zfs and ldiskfs.

I have these errors in our mds server log:

LDISKFS-fs warning (device dm-4): ldiskfs_dx_add_entry:2618: inode 
30544460: comm mdt01_047: index 2: reach max htree level 2
Oct  4 09:32:24 nemo kernel: LDISKFS-fs warning (device dm-4): 
ldiskfs_dx_add_entry:2622: Large directory feature is not enabled on 
this filesystem
Oct  4 09:32:24 nemo kernel: Lustre: 
25646:0:(osd_handler.c:466:osd_ldiskfs_add_entry()) lustre-MDT0000: 
directory (inode: 30544460, FID: [0x200002347:0x1:0x0]) has reached 
maximum entry limit

How can I enable the large directory feature in our lustre filesystem to 
solve these errors?

I can't see references to this feature in the lustre documentation. Is 
it related with the LU-1365?

Regards.

-- 
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Fernando Pérez
Institut de Ciències del Mar (CSIC)
Departament Oceanografía Física i Tecnològica
Passeig Marítim de la Barceloneta,37-49
08003 Barcelona
Phone:  (+34) 93 230 96 35
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