On 4/4/2014 2:26 AM, daiguochao wrote: > Hello folks, Hello, Note that your problems are not XFS specific, but can occur with any Linux filesystem. > I used xfs file system in kernel-2.6.32-220.13.1.el6.x86_64 for store > pictures. About 100 days system memorys is lost and some nginx process is > killed by oom-killer.So,I looked /proc/meminfo and find memorys is > lost.Finally, I try to umount xfs system and 10GB memorys is coming back. l > look xfs bugzilla no such BUG.I have no idea for it. > > Cheers, > > Guochao. > > some memorys info: > > 0> free -m > total used free shared buffers cached > Mem: 11887 11668 219 0 0 2 > -/+ buffers/cache: 11665 222 > Swap: 0 0 0 First problem: no swap Second problem: cache is not being reclaimed Read vfs_cache_pressure at: https://www.kernel.org/doc/Documentation/sysctl/vm.txt You've likely set this value to zero. Changing it to 200 should prompt the kernel to reclaim dentries and inodes aggressively, preventing the oom-killer from kicking in. Cheers, Stan _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
