NFSDCLTS(8)                        nfsdclnts                       NFSDCLTS(8)

NAME
       nfsdclnts - print various nfs client information for knfsd server.

SYNOPSIS
       nfsdclnts [-h] [-t type] [--clientinfo] [--hostname] [-q]

DESCRIPTION
       The nfsdclnts(8) command parses the content present in
       /proc/fs/nfsd/clients/ directories. nfsdclnts(8) displays files which
       are open, locked, delegated by the nfs-client. It also prints useful
       client information such as hostname, clientID, NFS version mounted by
       the nfs-client.

OPTIONS
       -t, --type=TYPE
           Specify the type of file to be displayed. Takes only one TYPE at a
           time.

           open, lock, deleg, layout, or all

           open: displays the open files by nfs-client(s).

           lock: displays the files locked by nfs-client(s).

           layout: displays the files for which layout is given.

           deleg: displays delegated files information and delegation type.

           all: prints all the above type.

       --clientinfo
           displays various nfs-client info fields such as version of nfs
           mounted at nfs-client and clientID.

       --hostname
           Print hostname of nfs-client instead of ip-address.

       -q, --quiet
           Hide the header information.

       -v, --verbose
           Verbose operation, show debug messages.

       -f, --file
           Instead of processing all client directories under
           /proc/fs/nfsd/clients, one can provide a specific states file to
           process. One should make sure that info file resides in the same
           directory as states file.  If the info file is not valid or present
           the fields would be marked as "N/A".

       -h, --help
           Print help explaining the command line options.

EXAMPLES
       nfsdclnts --type open
           List all files with open type only.

           Inode number | Type   | Access | Deny | ip address            | Filename
           33823232     | open   | r-     | --   | [::1]:757             | testfile

       nfsdclnts --type deleg
           List all files with deleg type only.

           Inode number | Type   | Access | ip address            | Filename
           33823232     | deleg  | r      | [::1]:757             | testfile

       nfsdclnts --hostname
           Print hostname instead of ip-address.

           Inode number | Type   | Access | Deny | Hostname              | Filename
           33823232     | open   | r-     | --   | nfs-server            | testfile
           33823232     | deleg  | r      |      | nfs-server            | testfile

       nfsdclnts --clientinfo
           Print client information.

           Inode number | Type   | Access | Deny | ip address            | Client ID           | vers | Filename
           33823232     | open   | r-     | --   | [::1]:757             | 0xc79a009f5eb65e84  | 4.2  | testfile
           33823232     | deleg  | r      |      | [::1]:757             | 0xc79a009f5eb65e84  | 4.2  | testfile

       nfsdclnts --file /proc/fs/nfsd/clients/3/states -t open
           Process specific states file.

           Inode number | Type   | Access | Deny | ip address            | Client ID           | vers | Filename
           33823232     | open   | r-     | --   | [::1]:757             | 0xc79a009f5eb65e84  | 4.2  | testfile

       nfsdclnts --quiet --hostname
           Hide the header information.

           33823232     | open   | r-     | --   | nfs-server            | testfile
           33823232     | deleg  | r      |      | nfs-server            | testfile

FILES
       /proc/fs/nfsd/clients/

       Displays basic information about each NFSv4 client.

       /proc/fs/nfsd/clients/#/info

       Displays information about all the opens held by the given client,
       including open modes, device numbers, inode numbers, and open owners.

       /proc/fs/nfsd/clients/#/states

NOTES
       /proc/fs/nfsd/clients/ support was initially introduced in 5.3 kernel
       and is only implemented for mount points using NFSv4.

BUGS
       Please report any BUGs to  <linux-nfs@vger.kernel.org>

SEE ALSO
       nfsd(8), exportfs(8), idmapd(8), statd(8)

AUTHORS
       Achilles Gaikwad <agaikwad@redhat.com> and Kenneth D'souza
       <kdsouza@redhat.com>

nfsdclnts                         2020-05-09                       NFSDCLTS(8)