On 3/3/21 10:23 AM, J. Bruce Fields wrote:
> On Tue, Mar 02, 2021 at 05:33:23PM -0500, Steve Dickson wrote:
>>
>>
>> On 2/24/21 3:30 PM, J. Bruce Fields wrote:
>>> On Fri, Feb 19, 2021 at 03:08:08PM -0500, Steve Dickson wrote:
>>>> nfsv4.exportd is a daemon that will listen for only v4 mount upcalls.
>>>> The idea is to allow distros to build a v4 only package
>>>> which will have a much smaller footprint than the
>>>> entire nfs-utils package.
>>>>
>>>> exportd uses no RPC code, which means none of the
>>>> code or arguments that deal with v3 was ported,
>>>> this again, makes the footprint much smaller.
>>>
>>> How much smaller?
>> Will a bit smaller... but a number of daemons like nfsd[cld,clddb,cldnts]
>> need to also come a long.
>
> Could we get some numbers?
>
> Looks like nfs-utils in F33 is about 1.2M:
>
> $ rpm -qi nfs-utils|grep ^Size
> Size : 1243512
Here are the numbers. Remember things are still in development so
these may not be the final numbers
For the v4 only client
rpm -qi nfsv4-client-utils-2* | grep ^Size
Size : 374573
for the v4only server:
rpm -qi nfsv4-utils-2* | grep ^Size
Size : 942088
>
> $ strip utils/mountd/mountd
> $ ls -lh utils/mountd/mountd
> -rwxrwxr-x. 1 bfields bfields 128K Mar 3 10:12 utils/mountd/mountd
> $ strip utils/exportd/exportd
> $ ls -lh utils/exportd/exportd
> -rwxrwxr-x. 1 bfields bfields 106K Mar 3 10:12 utils/exportd/exportd
>
> So replacing mountd by exportd saves us about 20K out of 1.2M. Is it
> worth it?
Looking at the numbers above... I think it is.
steved.
>
>>>> The following options were ported:
>>>> * multiple threads
>>>> * state-directory-path option
>>>> * junction support (not tested)
>>>>
>>>> The rest of the mountd options were v3 only options.
>>>
>>> There's also --manage-gids.
>> Right... a patch was posted...
>>
>>>
>>> If you want nfsv4-only at runtime, you can always run rpc.mountd with
>>> -N2 -N3 to turn off the MOUNT protocol support.
>> The end game is not to run mountd at all...
>>
>>>
>>> If you don't even want v2/f3 code on your system, then you may have to
>>> do something like this, but why is that important?
>> Container friendly... Not bring in all the extra daemons v3
>> needs is a good thing... esp rpcbind.
>
> Looking at the output of
> $ for f in $(rpm -ql nfs-utils); do if [ -f $f ]; then ls -ls $f; fi; done|sort -n
>
> It looks like removing statd, sm-notify, showount and their man pages
> would free about another 170K.
>
> I think that's about how much we'd save by seperating out a separate
> documentation package.
>
> I don't know, what sort of gains are container folks asking for?
>
> --b.
>
>>
>> steved.
>>
>>>
>>> --b.
>>>
>>>>
>>>> V2:
>>>> * Added two systemd services: nfsv4-exportd and nfsv4-server
>>>> * nfsv4-server starts rpc.nfsd -N 3, so nfs.conf mod not needed.
>>>>
>>>> V3: Changed the name from exportd to nfsv4.exportd
>>>>
>>>> V4: Added compile flag that will compile in the NFSv4 only server
>>>>
>>>> Steve Dickson (7):
>>>> exportd: the initial shell of the v4 export support
>>>> exportd: Moved cache upcalls routines into libexport.a
>>>> exportd: multiple threads
>>>> exportd/exportfs: Add the state-directory-path option
>>>> exportd: Enabled junction support
>>>> exportd: systemd unit files
>>>> exportd: Added config variable to compile in the NFSv4 only server.
>>>>
>>>> .gitignore | 1 +
>>>> configure.ac | 14 ++
>>>> nfs.conf | 4 +
>>>> support/export/Makefile.am | 3 +-
>>>> {utils/mountd => support/export}/auth.c | 4 +-
>>>> {utils/mountd => support/export}/cache.c | 46 +++-
>>>> support/export/export.h | 34 +++
>>>> {utils/mountd => support/export}/fsloc.c | 0
>>>> {utils/mountd => support/export}/v4root.c | 0
>>>> {utils/mountd => support/include}/fsloc.h | 0
>>>> systemd/Makefile.am | 6 +
>>>> systemd/nfs.conf.man | 10 +
>>>> systemd/nfsv4-exportd.service | 12 +
>>>> systemd/nfsv4-server.service | 31 +++
>>>> utils/Makefile.am | 4 +
>>>> utils/exportd/Makefile.am | 65 +++++
>>>> utils/exportd/exportd.c | 276 ++++++++++++++++++++++
>>>> utils/exportd/exportd.man | 81 +++++++
>>>> utils/exportfs/exportfs.c | 21 +-
>>>> utils/exportfs/exportfs.man | 7 +-
>>>> utils/mountd/Makefile.am | 5 +-
>>>> 21 files changed, 606 insertions(+), 18 deletions(-)
>>>> rename {utils/mountd => support/export}/auth.c (99%)
>>>> rename {utils/mountd => support/export}/cache.c (98%)
>>>> create mode 100644 support/export/export.h
>>>> rename {utils/mountd => support/export}/fsloc.c (100%)
>>>> rename {utils/mountd => support/export}/v4root.c (100%)
>>>> rename {utils/mountd => support/include}/fsloc.h (100%)
>>>> create mode 100644 systemd/nfsv4-exportd.service
>>>> create mode 100644 systemd/nfsv4-server.service
>>>> create mode 100644 utils/exportd/Makefile.am
>>>> create mode 100644 utils/exportd/exportd.c
>>>> create mode 100644 utils/exportd/exportd.man
>>>>
>>>> --
>>>> 2.29.2
>>>
>
