Hi I've been suffering from continual problems with my gluster filesystem slowing down due to what I thought was congestion on a single brick being caused by a problem with the underlying filesystem running slow but I've just noticed that the glusterfsd process for that particular brick is running at 100%+, even when the filesystem is almost idle. I've done a couple of straces of the brick and another on the same server, does the high number of futex errors give any clues as to what might be wrong? % time seconds usecs/call calls errors syscall ------ ----------- ----------- --------- --------- ---------------- 45.58 0.027554 0 191665 20772 futex 28.26 0.017084 0 137133 readv 26.04 0.015743 0 66259 epoll_wait 0.13 0.000077 3 23 writev 0.00 0.000000 0 1 epoll_ctl ------ ----------- ----------- --------- --------- ---------------- 100.00 0.060458 395081 20772 total % time seconds usecs/call calls errors syscall ------ ----------- ----------- --------- --------- ---------------- 99.25 0.334020 133 2516 epoll_wait 0.40 0.001347 0 4090 26 futex 0.35 0.001192 0 5064 readv 0.00 0.000000 0 20 writev ------ ----------- ----------- --------- --------- ---------------- 100.00 0.336559 11690 26 total Cheers, _______________________________________________ Gluster-users mailing list Gluster-users@xxxxxxxxxxx http://supercolony.gluster.org/mailman/listinfo/gluster-users
