Hi there I am currently trying to benchmark and test glusterfs resp. the gfapi and use fio for that. I would especially like a way to reproduce [1] and [2] properly. When using processes, the tests work, but the OS will then cleanup threads and memory, so reproducing [2] is not possible. When starting fio with --thread (and --stonewall) as described in [3] I get the following error: Starting 8 threads [2014-07-04 05:28:46.997537] E [mem-pool.c:349:mem_get0] (-->/usr/lib64/libgfapi.so.0(glfs_init+0x9) [0x7fa68b521369] (-->/usr/lib64/libgfapi.so.0(glfs_init_common+0x93) [0x7fa68b521223] (-->/usr/lib64/libglusterfs.so.0(get_new_dict_full+0x25) [0x7fa689d9cbe5]))) 0-mem-pool: invalid argument glfs_init failed. Is glusterd running on brick? Please also note that one must use latest fio HEAD since there was another bug I fixed causing fio to segfault if opening a file using gfapi was unsuccessful. The above tests are with glusterfs-3.4.5-beta1. Any ideas? Is gfapi and accessing the same volume via different threads in particular considered to be safe? (see glusterfs.c in [4] on how fio does it) Thanks, Tiziano [1] https://bugs.launchpad.net/qemu/+bug/1333651 [2] https://bugzilla.redhat.com/show_bug.cgi?id=1093594 [3] http://wiki.stoney-cloud.org/index.php/GlusterFS_Benchmark [4] http://git.kernel.dk/?p=fio.git;a=tree;f=engines;hb=HEAD -- stepping stone GmbH Neufeldstrasse 9 CH-3012 Bern Telefon: +41 31 332 53 63 www.stepping-stone.ch tiziano.mueller@@stepping-stone.ch _______________________________________________ Gluster-users mailing list Gluster-users@xxxxxxxxxxx http://supercolony.gluster.org/mailman/listinfo/gluster-users
