On 2016/02/09, 11:44, "lustre-discuss on behalf of Chris Hunter" <[email protected] on behalf of [email protected]> wrote:
>Hi, > >I have two lustre 2.5 filesystems. I notice on one filesystem with 8 >OSTs the MDT object files (eg. subdir O/1) have sizes of ~100k. > >While second filesystem with 4 OSTs the MDT object files are size 2-4M. >FYI, we have changelogs enabled on this filesystem. > >Any ideas why the files are larger in second case ? The O/1 directory holds only the "lustre log" files, so if you have changelogs enabled there, then that is where they would be stored. The other thing written to these logs is for tracking files that are unlinked on the MDT but still need OST objects destroyed, so there will usually be some logs there (one or two per OST) at any given time. Cheers, Andreas -- Andreas Dilger Lustre Principal Architect Intel High Performance Data Division _______________________________________________ lustre-discuss mailing list [email protected] http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org
