Guy Coates wrote: > One thing to watch out for in your kernel configs is to make sure that: > > CONFIG_SECURITY_FILE_CAPABILITIES=N
I hope this is not the case for the now obsolete: CONFIG_EXT3_FS_SECURITY=y which appears to be enabled by default on RHEL5.x Its not entirely clear to me what this is for but would metadata performance be better without it? GREG > > otherwise you will run into: > > https://bugzilla.lustre.org/show_bug.cgi?id=21439 > > (each write call causes 2 getxattr calls, which will pound your MDS into > the ground). > > The SLES11, debian/lenny and ubuntu kernels all have this feature set, > so if you are building clients against those kernels, you may be in > trouble. > > > Cheers, > > Guy > -- Greg Matthews 01235 778658 Senior Computer Systems Administrator Diamond Light Source, Oxfordshire, UK _______________________________________________ Lustre-discuss mailing list Lustre-discuss@lists.lustre.org http://lists.lustre.org/mailman/listinfo/lustre-discuss