NFS hangs while copy large files

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hello,
i use glusterfs version 3.6.1 on 2 bricks in 1 distribute volume. the volume is mounted on 1 client manually by mount -t nfs server1:vol1 /mnt/gfs. if i copy smal files e.g. up to 500MB, its no problem. But if i copy large files e.g. >30gb nfs gets slower until its stops and the system hangs. then i could only hard power down by powerswitch.
in syslog i found:
kernel: task mc blocked for more than 120 seconds...
not tainted 3.16-0.bpo.2-amd64
..
call trace.
....
nfs_file_fsync...
nfs_file_write...
new_sync_write...
...
and so on. The System has 11 disk in raid6 with xfs and 8GB RAM. No other services are running. Searching in web i found glusterfs bug 977492. i saw that volume default options nfs.outstanding-rpc-limit and nfs.drc has changed since a few version, but it seems that this doesnt work for my simple workload. But i tried option nfs.outstanding-rpc-limit: 8 instead of default 16. the result i could copy some larger files 40gb at once, but as the second starts i got the same problem again.
I hope you can help. thx
	

_______________________________________________
Gluster-users mailing list
Gluster-users@xxxxxxxxxxx
http://www.gluster.org/mailman/listinfo/gluster-users



[Index of Archives]     [Gluster Development]     [Linux Filesytems Development]     [Linux ARM Kernel]     [Linux ARM]     [Linux Omap]     [Fedora ARM]     [IETF Annouce]     [Bugtraq]     [Linux OMAP]     [Linux MIPS]     [eCos]     [Asterisk Internet PBX]     [Linux API]

  Powered by Linux