Date: Tue, 31 Dec 2002 13:48:09 -0600 From: Daniel Schrock <dschrock@speakeasy.net> To: freebsd-questions@freebsd.org Subject: NFS problems -- performance degraded after upgrade to 4.7 Message-ID: <3E11F479.90002@speakeasy.net>
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Hello all,
I'm having some problems with nfs performance. Here is a bit of background.
I have a fileserver running FreeBSD 4.7-STABLE. This has a 3ware
Escalade with 4 x 80GB Maxtors in a RAID 5 config. I am exporting
/usr/ports, among other things - 5 exports total to 2 clients. The
clients are all running 4.7-Stable as well. Under 4.6.2, I was able to
install ports with no problems on the clients. Now, patches don't seem
to always work, files aren't always getting created, and 'Server
Ret-Failed' from nfsstat -s increments quite rapidly.
I hope there isn't any problems following this.
# relevant info section:
#######Fileserver#######
13:41:51:d_jab@aluminum (/dev/ttyp5): 15 ~
>> grep nfs /etc/rc.conf
nfs_reserved_port_only="YES"
nfs_server_enable="YES"
nfs_server_flags="-u -t -n 20 -h 192.168.23.200"
13:40:12:d_jab@aluminum (/dev/ttyp5): 12 ~
>> grep twed /etc/fstab
/dev/twed0s1b none swap sw 0 0
/dev/twed0s1h /home ufs rw,noatime,nosuid,nodev
2 2
/dev/twed0s1e /usr ufs rw,noatime
2 2
/dev/twed0s1d /usr/local/mp3 ufs
rw,noatime,nosuid,nodev 2 2
/dev/twed0s1a /usr/local/storage ufs
rw,noatime 2 2
/dev/twed0s1g /usr/ports ufs rw,noatime
2 2
/dev/twed0s1f /usr/src ufs rw,noatime
2 2
13:40:23:d_jab@aluminum (/dev/ttyp5): 13 ~
>> cat /etc/exports
/usr/src -maproot=root -network 192.168.23 -mask 255.255.255.0
/usr/ports -maproot=root -network 192.168.23 -mask 255.255.255.0
/home -maproot=root -network 192.168.23 -mask 255.255.255.0
/usr/local/mp3 -maproot=root -network 192.168.23 -mask 255.255.255.0
/usr/local/storage -maproot=root -network 192.168.23 -mask
255.255.255.0
13:40:58:d_jab@aluminum (/dev/ttyp5): 14 ~
>> nfsstat -s
Server Info:
Getattr Setattr Lookup Readlink Read Write Create
Remove
5749 67176 480135 60 191927 114932 40335
15174
Rename Link Symlink Mkdir Rmdir Readdir RdirPlus
Access
23627 9 192 909 739 47 40300
661793
Mknod Fsstat Fsinfo PathConf Commit GLease Vacate
Evict
0 53118 10 0 53650 0 0
0
Server Ret-Failed
242570
Server Faults
0
Server Cache Stats:
Inprog Idem Non-idem Misses
0 4 0 803
Server Lease Stats:
Leases PeakL GLeases
0 0 0
Server Write Gathering:
WriteOps WriteRPC Opsaved
114906 114932 26
###### Client ######
13:43:50:d_jab@carbon (/dev/ttyp2): 6 ~
>> grep nfs /etc/rc.conf
nfs_reserved_port_only="YES"
nfs_client_enable="YES"
nfs_client_flags="-n 6"
12:59:55:d_jab@carbon (/dev/ttyp2): 4 ~
>> grep nfs /etc/fstab
al:/home /home nfs
rw,nfsv3,tcp,intr,bg,rdirplus,noatime,-r=32768,-w=32768 00
al:/usr/ports /usr/ports nfs
rw,nfsv3,tcp,intr,bg,rdirplus,noatime,-r=32768,-w=32768 0 0
al:/usr/src /usr/src nfs
rw,nfsv3,tcp,intr,bg,rdirplus,noatime,-r=32768,-w=32768 0 0
al:/usr/local/mp3 /usr/local/mp3 nfs
rw,nfsv3,tcp,intr,bg,rdirplus,noatime,-r=32768,-w=32768 00
al:/usr/local/storage /usr/local/storage nfs
rw,nfsv3,tcp,intr,bg,rdirplus,noatime,-r=32768,-w=32768 0 0
13:42:42:d_jab@carbon (/dev/ttyp2): 5 ~
>> nfsstat -c
Client Info:
Rpc Counts:
Getattr Setattr Lookup Readlink Read Write Create
Remove
274 100450 596003 63 209637 193806 55717
26701
Rename Link Symlink Mkdir Rmdir Readdir RdirPlus
Access
29939 27 195 1088 1084 0 43879
774525
Mknod Fsstat Fsinfo PathConf Commit GLease Vacate
Evict
0 56651 16 0 41432 0 0
0
Rpc Info:
TimedOut Invalid X Replies Retries Requests
0 0 10 617 2131487
Cache Info:
Attr Hits Misses Lkup Hits Misses BioR Hits Misses BioW Hits
Misses
8475243 579261 2735547 595897 4225460 198743 320897
193806
BioRLHits Misses BioD Hits Misses DirE Hits Misses
718 63 69134 41254 50367 14
#####################################################
Does anyone have any advice?
Let me know if you need more info.
Thanks
.daniel
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