Commit Graph

104 Commits

Author SHA1 Message Date
Xin LI
d9a5a9b8ab Fix markup for minthreads and maxthreads.
PR:		196403
MFC after:	2 weeks
2015-01-01 06:53:33 +00:00
Rick Macklem
fd71d3ebee Document the use of the vfs.nfsd sysctls that control the size of
the NFS server's DRC for TCP.
This is a content change.

MFC after:	1 week
2014-08-10 20:05:13 +00:00
Rick Macklem
9f7289bfc4 r243637 changed the default number of nfsd threads created,
but the man page did not reflect this.
This is a content change.

Reported by:	bde
MFC after:	2 weeks
2014-07-19 01:15:01 +00:00
Rick Macklem
62869df0c8 Document the fact that an NFSv4 mount uses the host uuid to uniquely
identify the client to the server. As such, NFSv4 mounts
will break if host_enable="NO" is specified.
This is a content change.

Suggested by:	lars@netapp.com
MFC after:	3 days
2013-07-01 21:41:12 +00:00
Rick Macklem
2eec079956 Document the fact that an NFSv4 mount against a volume on the same host
can result in a hung NFS server and is not recommended.
This is a content change.

MFC after:	2 weeks
2013-05-01 22:50:45 +00:00
Xin LI
535875c734 Simplify r243637 and make sure that nfsdargs.{min,max}threads are always set
to meaningful value:

 - When nfsdcnt is set, it dictates all values;
 - Otherwise, nfsdargs.minthreads is set to user specified value, or the
   automatically detected value if there is no one specified;
   nfsdargs.maxthreads is set to the user specified value, or the value
   of nfsdargs.minthreads if there is no one specified; when it is smaller
   than nfsdargs.minthreads, the latter's value is always used.

MFC after:	2 weeks
2013-02-14 02:00:41 +00:00
Xin LI
2a0b6dc5c3 Abstract out setting of nfsdcnt and consistently use MAXNFSDCNT when the
proposed value is too high and DEFNFSDCNT when proposed value is too low.

MFC after:	2 weeks
2013-02-14 01:25:14 +00:00
Xin LI
f33fce4865 Use static for all functions that do not need to be exported.
MFC after:	2 weeks
2013-02-14 01:01:53 +00:00
Rick Macklem
659cf796d3 Attempt to clarify that for ZFS, all file systems under
the NFSv4 root must be exported. This is because ZFS
checks exports itself.
This is a content change.

MFC after:	2 weeks
2012-12-25 22:47:49 +00:00
Rick Macklem
bf29178ce5 Post r243965 the nfsd daemon will not start up for kernels
built without "options INET6". This patch fixes the problem.

Reported by:	avg
Tested by:	avg
MFC after:	2 weeks
2012-12-19 21:00:22 +00:00
Alfred Perlstein
e002ac8f81 Document maxthreads and minthreads arguments 2012-12-02 05:57:53 +00:00
Alfred Perlstein
57b1c84032 Don't allow minthreads > maxthreads.
Suggested by: rmacklem
2012-11-28 02:47:31 +00:00
Alfred Perlstein
08bddad546 Fix typo.
Pointed out by: marck
2012-11-28 02:23:59 +00:00
Alfred Perlstein
92829804fd Autoconfigure nfsd threads based on ncpu.
Rick Macklem and I discussed the default number of nfsd threads and
concluded that it is too low to perform adiquitely on today's hardware.

We decided to auto tune the number of nfsds based on the number of cpus
in the system.

While I'm here I've also added:

1) ability to set the minthreads/maxthreads from userland.
2) ability to run nfsd in debug mode via the cli.

Reviewed by: rmacklem
MFC after: 2 weeks
2012-11-27 22:34:46 +00:00
Eitan Adler
521aea7c30 Fix typo in error when unable to create TCP socket
PR:		bin/172490
Submitted by:	bdrewery
Approved by:	cperciva
MFC after:	3 days
2012-10-22 03:16:32 +00:00
Ed Schouten
bf70becee6 More -Wmissing-variable-declarations fixes.
In addition to adding `static' where possible:

- bin/date: Move `retval' into extern.h to make it visible to date.c.
- bin/ed: Move globally used variables into ed.h.
- sbin/camcontrol: Move `verbose' into camcontrol.h and fix shadow warnings.
- usr.bin/calendar: Remove unneeded variables.
- usr.bin/chat: Make `line' local instead of global.
- usr.bin/elfdump: Comment out unneeded function.
- usr.bin/rlogin: Use _Noreturn instead of __dead2.
- usr.bin/tset: Pull `Ospeed' into extern.h.
- usr.sbin/mfiutil: Put global variables in mfiutil.h.
- usr.sbin/pkg: Remove unused `os_corres'.
- usr.sbin/quotaon, usr.sbin/repquota: Remove unused `qfname'.
2012-10-19 14:49:42 +00:00
Glen Barber
50d922a02e General mdoc(7) and typo fixes.
PR:		167776
Submitted by:	Nobuyuki Koganemaru (kogane!jp.freebsd.org)
MFC after:	3 days
2012-05-12 03:25:46 +00:00
Joel Dahl
c0cbd1c6f1 Remove superfluous paragraph macro. 2012-03-25 09:18:34 +00:00
Kevin Lo
fdb6437f73 Remove duplicated header files 2011-06-24 07:05:20 +00:00
Rick Macklem
ed3f96b28e Fix the nfsv4 man page to reflect the changes related to
making the new NFS client and server the default.
This is a content change.
2011-05-15 22:46:45 +00:00
Rick Macklem
6c77e3b501 Patch the mountd and nfsd man pages to reflect the recent changes
done by r220980 to deprecate the -e option and add the -o option.
This is a content change for both man pages.
2011-04-24 01:11:28 +00:00
Rick Macklem
2a85df8ca0 This patch changes the default NFS server to the new one, which was
referred to as the experimental server. It also adds a new command
line option "-o" to both mountd and nfsd that forces them to use the
old/regular NFS server. The "-e" option for these commands is now
a no-op, since the new server is the default. I will be committing rc
script and man changes soon. Discussed on freebsd-fs@.
2011-04-24 00:06:56 +00:00
Rick Macklem
e5e8d6ad0a Add stablerestart(5) to the See Also list for nfsd.8.
This is a content change.

Suggested by:	Jeremy Chadwick
MFC after:	2 weeks
2011-04-19 23:33:51 +00:00
Rick Macklem
31902c84f5 Revert r220809 since it put the entry in the wrong place
in the list and didn't change the date.
2011-04-19 13:19:13 +00:00
Rick Macklem
74ddb1e945 Add stablerestart(5) to the See Also list for nfsd(8).
This is a content change.

Suggested by:	Jeremy Chadwick
MFC after:	2 weeks
2011-04-19 00:47:26 +00:00
Rick Macklem
9d12ecf01e Modify the man pages to reflect the addition of a backup
stable restart file, as done by r220510.
This is a content change.

MFC after:	2 weeks
2011-04-10 13:45:46 +00:00
Rick Macklem
3d77ac51e4 Add support for a backup stable restart file to the nfsd,
used for NFSv4 restart. This permits the nfsd to create
the stable restart file as required and minimizes the risk
of trouble if the file is lost.

Suggested by:	Tim Kientzle
Reviewed by:	jhb
MFC after:	2 weeks
2011-04-10 01:54:42 +00:00
John Baldwin
873ec24ac8 Save a copy of errno before invoking syslog() if accept() or select() fail.
syslog() can trash the errno value causing nfsd to exit for non-fatal
errors like ECONNABORTED from accept().

MFC after:	1 week
2011-02-17 17:03:56 +00:00
Joel Dahl
c2025a7660 Fix typos, spelling, formatting and mdoc mistakes found by Nobuyuki while
translating these manual pages.  Minor corrections by me.

Submitted by:	Nobuyuki Koganemaru <n-kogane@syd.odn.ne.jp>
2010-08-16 15:18:30 +00:00
Joel Dahl
f6ac23919b Fix typos and spelling mistakes. 2010-08-06 14:33:42 +00:00
Ulrich Spörlein
25c8b07fc2 mdoc: Garbage collect unused/unneeded macros 2010-05-27 13:56:27 +00:00
Ed Schouten
71ccf09269 The last big commit: let usr.sbin/ use WARNS=6 by default. 2010-01-02 11:07:44 +00:00
Ed Schouten
10bc3a7f42 ANSIfy almost all applications that use WARNS=6.
I was considering committing all these patches one by one, but as
discussed with brooks@, there is no need to do this. If we ever
need/want to merge these changes back, it is still possible to do this
per application.
2009-12-29 22:53:27 +00:00
Edward Tomasz Napierala
f32534450f Yet another cosmetic fix. 2009-12-03 20:06:03 +00:00
Edward Tomasz Napierala
1f5dd95b20 Cosmetical fixes. 2009-12-03 20:02:26 +00:00
Edward Tomasz Napierala
91c72a9ad2 Cosmetical fixes. 2009-12-03 19:59:27 +00:00
Christian Brueffer
cf6c5eebe7 Use our canonical .Dd format.
Submitted by:	Ulrich Spoerlein
2009-11-02 12:35:38 +00:00
Doug Rabson
0775314b63 Don't use sys/nfs/rpcv2.h - it is part of the old kernel RPC implementation
and will be removed.
2009-06-24 18:42:21 +00:00
Rick Macklem
924823491e Update the content of the nfsv4.4 man page to reflect the final
choice of variable names for rc.conf and option name for the
experimental server.
Also replace the inaccurate description of the nfsv4 root lines
in /etc/exports, mostly with a reference to exports(5).

Approved by:	kib (mentor)
2009-06-12 14:18:13 +00:00
Rick Macklem
35f2eba009 Re-format the nfsv4.4 man page so that all sentences start on a
new line.

Approved by:	kib (mentor)
2009-06-03 21:50:26 +00:00
Rick Macklem
2179ae1ebf Change the "-4" argument for nfsd and mountd to "-e" to avoid
confusion, since it does not refer to IPv4 nor NFSv4, but to
running the experimental server instead of the regular one.

Approved by:	kib (mentor)
2009-05-28 20:28:13 +00:00
Rick Macklem
20d0a5e544 Modify nfsd.c to add support for the experimental nfs server.
This includes the addition of a new flag "-4" that will force
use of the experimental server with nfsv4 support in it. This
commit also adds two new man pages to the repository that are
NFSv4 specific. One describes the file used by the server to
restart nfsv4 services safely. The other is a brief overview
of nfsv4 and its setup.

Reviewed by:	dfr
Approved by:	kib (mentor)
2009-05-24 01:18:56 +00:00
Doug Rabson
a9148abd9d Implement support for RPCSEC_GSS authentication to both the NFS client
and server. This replaces the RPC implementation of the NFS client and
server with the newer RPC implementation originally developed
(actually ported from the userland sunrpc code) to support the NFS
Lock Manager.  I have tested this code extensively and I believe it is
stable and that performance is at least equal to the legacy RPC
implementation.

The NFS code currently contains support for both the new RPC
implementation and the older legacy implementation inherited from the
original NFS codebase. The default is to use the new implementation -
add the NFS_LEGACYRPC option to fall back to the old code. When I
merge this support back to RELENG_7, I will probably change this so
that users have to 'opt in' to get the new code.

To use RPCSEC_GSS on either client or server, you must build a kernel
which includes the KGSSAPI option and the crypto device. On the
userland side, you must build at least a new libc, mountd, mount_nfs
and gssd. You must install new versions of /etc/rc.d/gssd and
/etc/rc.d/nfsd and add 'gssd_enable=YES' to /etc/rc.conf.

As long as gssd is running, you should be able to mount an NFS
filesystem from a server that requires RPCSEC_GSS authentication. The
mount itself can happen without any kerberos credentials but all
access to the filesystem will be denied unless the accessing user has
a valid ticket file in the standard place (/tmp/krb5cc_<uid>). There
is currently no support for situations where the ticket file is in a
different place, such as when the user logged in via SSH and has
delegated credentials from that login. This restriction is also
present in Solaris and Linux. In theory, we could improve this in
future, possibly using Brooks Davis' implementation of variant
symlinks.

Supporting RPCSEC_GSS on a server is nearly as simple. You must create
service creds for the server in the form 'nfs/<fqdn>@<REALM>' and
install them in /etc/krb5.keytab. The standard heimdal utility ktutil
makes this fairly easy. After the service creds have been created, you
can add a '-sec=krb5' option to /etc/exports and restart both mountd
and nfsd.

The only other difference an administrator should notice is that nfsd
doesn't fork to create service threads any more. In normal operation,
there will be two nfsd processes, one in userland waiting for TCP
connections and one in the kernel handling requests. The latter
process will create as many kthreads as required - these should be
visible via 'top -H'. The code has some support for varying the number
of service threads according to load but initially at least, nfsd uses
a fixed number of threads according to the value supplied to its '-n'
option.

Sponsored by:	Isilon Systems
MFC after:	1 month
2008-11-03 10:38:00 +00:00
Xin LI
487e86678e Previous revision was broken on SPARC, fix it by using more appropriate type.
Reported by:	tindebox
Pointy hat to:	delphij
2005-12-21 10:12:05 +00:00
Xin LI
6f229bd3ae Use size_t for length. 2005-12-21 02:25:59 +00:00
Robert Watson
3f7c86a8c3 Bump the default maximum on nfsd processes from 20 to 256. Real-world
measurements suggest that higher degrees of parallelism for large
numbers of clients help performance substantially.

Submitted by:	Eric Anderson <anderson at centtech dot com>
2005-01-23 21:34:00 +00:00
Ruslan Ermilov
a866e17077 Added the EXIT STATUS section where appropriate. 2005-01-17 07:44:44 +00:00
Xin LI
6f52836b84 ANSI'fy nfsd(8) and some minor changes to make it WARNS=6 clean.
This commit does not affect the code generated, as proven by md5'ing
resulting binaries.

Bump WARNS accordingly.

Compiled on:	sparc64, ia64, i386
Reviewed by:	alfred (but blame me if anything goes wrong :-)
2004-11-06 18:15:44 +00:00
Warner Losh
486c8cc4c6 Per letter dated July 22, 1999 remove 3rd clause of Berkeley derived software
(with permission of addtional copyright holders where appropriate)
2004-08-07 04:28:56 +00:00
Ruslan Ermilov
07bfccd71e Mechanically kill hard sentence breaks. 2004-07-02 23:13:00 +00:00