NFSTEST_DELEGATION(1)

NAME
nfstest_delegation - Delegation tests

SYNOPSIS
nfstest_delegation --server <server> [--client <client>] [options]

DESCRIPTION
Basic delegation tests verify that a correct delegation is granted when opening a file for reading or writing. Also, another OPEN should not be sent for the same file when the client is holding a delegation. Verify that the stateid of all I/O operations should be the delegation stateid. Reads from a different process on the same file should not cause the client to send additional READ packets when the client is holding a read delegation. Furthermore, a LOCK packet should not be sent to the server when the client is holding a delegation. Recall delegation tests verify the delegation is recalled when a conflicting operation is sent to the server from a different client. Conflicting operations are reading, writing and changing the permissions on the same file. Note, that reading a file from a different client can only recall a read delegation. Also, verify that a delegation is not recalled when a different client is granted a read delegation. After a delegation is recalled, the client should send an OPEN with CLAIM_DELEGATE_CUR before returning the delegation and the stateid should be the same as the original OPEN stateid. Also, a delegation should not be granted when re-opening the file right before returning the delegation. Verify client flushes all written data before returning the WRITE delegation. The LOCK should be sent as well right before returning a delegation which has been recalled. A delegation should not be granted on the second client who cause the delegation recall on the first client.

OPTIONS

--version
    show program's version number and exit

-h, --help
    show this help message and exit

-f FILE, --file=FILE
    File where options are specified besides the system wide file /etc/nfstest, user wide file $HOME/.nfstest or in the current directory .nfstest file

  NFS specific options:

-s SERVER, --server=SERVER
    Server name or IP address

-e EXPORT, --export=EXPORT
    Exported file system to mount [default: '/']

--nfsversion=NFSVERSION
    NFS version, e.g., 3, 4, 4.1, etc. [default: 4.1]

-m MTPOINT, --mtpoint=MTPOINT
    Mount point [default: '/mnt/t']

-p PORT, --port=PORT
    NFS server port [default: 2049]

--proto=PROTO
    NFS protocol name [default: 'tcp']

--sec=SEC
    Security flavor [default: 'sys']

-o MTOPTS, --mtopts=MTOPTS
    Mount options [default: 'hard,rsize=4096,wsize=4096']

--datadir=DATADIR
    Data directory where files are created, directory is created on the mount point [default: '']

  Logging options:

-v VERBOSE, --verbose=VERBOSE
    Verbose level for debug messages [default: 'none']

--tverbose=TVERBOSE
    Verbose level for test messages [default: '1']

--createlog
    Create log file

--rexeclog
    Create rexec log files

--warnings
    Display warnings

--tag=TAG
    Informational tag, it is displayed as an INFO message [default: '']

--notty
    Do not use terminal colors on output

  Packet trace options:

--createtraces
    Create a packet trace for each test

--tbsize=TBSIZE
    Capture buffer size for tcpdump [default: 192k]

--trcdelay=TRCDELAY
    Seconds to delay before stopping packet trace [default: 0.0]

--keeptraces
    Do not remove any trace files [default: remove trace files if no errors]

--rmtraces
    Remove trace files [default: remove trace files if no errors]

-i INTERFACE, --interface=INTERFACE
    Device interface [default: automatically selected]

  File options:

--nfiles=NFILES
    Number of files to create [default: 2]

--filesize=FILESIZE
    File size to use for test files [default: 64k]

--rsize=RSIZE
    Read size to use when reading files [default: 4k]

--wsize=WSIZE
    Write size to use when writing files [default: 4k]

--iodelay=IODELAY
    Seconds to delay I/O operations [default: 0.1]

--offset-delta=OFFSET_DELTA
    Read/Write offset delta [default: 4k]

  Path options:

--sudo=SUDO
    Full path of binary for sudo [default: '/usr/bin/sudo']

--tcpdump=TCPDUMP
    Full path of binary for tcpdump [default: '/usr/sbin/tcpdump']

--iptables=IPTABLES
    Full path of binary for iptables [default: '/usr/sbin/iptables']

--messages=MESSAGES
    Full path of log messages file [default: '/var/log/messages']

--tmpdir=TMPDIR
    Temporary directory [default: '/tmp']

  Debug options:

--nocleanup
    Do not cleanup created files

--bugmsgs=BUGMSGS
    File containing test messages to mark as bugs if they failed

--ignore
    Ignore all bugs given by bugmsgs

--nomount
    Do not mount server and run the tests on local disk space

--basename=BASENAME
    Base name for all files and logs [default: automatically generated]

--nfsdebug=NFSDEBUG
    Set NFS kernel debug flags and save log messages [default: '']

--rpcdebug=RPCDEBUG
    Set RPC kernel debug flags and save log messages [default: '']

--pktdisp
    Display main packets related to the given test

  Test options:

--runtest=RUNTEST
    Comma separated list of tests to run, if list starts with a '^' then all tests are run except the ones listed [default: 'all']

--client=CLIENT
    Remote NFS client used for recall tests

--lock-offset=LOCK_OFFSET
    Starting offset for lock [default: 0]

--lock-len=LOCK_LEN
    Number of bytes to lock [default: 0]

--truncate
    Truncate file when writing from the second file for the recall tests

TESTS

  basic
Run all basic delegation tests: basic01, basic02, basic03, basic04,
basic05, basic06

  basic01
Basic read delegation test

  basic02
Basic write delegation test

  basic03
Basic read delegation test with file stat

  basic04
Basic write delegation test with file stat

  basic05
Basic read delegation test with file lock

  basic06
Basic write delegation test with file lock

  recall
Run all recall delegation tests: recall01, recall02, recall03, recall04,
recall05, recall06, recall07, recall08, recall09, recall10

  recall01
Recall read delegation by writing from a second client

  recall02
Recall write delegation by writing from a second client

  recall03
Recall read delegation by writing from a second client with file lock

  recall04
Recall write delegation by writing from a second client with file lock

  recall05
Recall write delegation by reading from a second client

  recall06
Recall write delegation by reading from a second client with file lock

  recall07
Recall read delegation by changing the permissions to the file

  recall08
Recall write delegation by changing the permissions to the file

  recall09
Recall read delegation by changing the permissions to the file with file lock

  recall10
Recall write delegation by changing the permissions to the file with file lock

EXAMPLES
The only required option is --server but only the basic delegation tests will be run. Use the --client option to run the recall tests as well
$ nfstest_delegation --server 192.168.0.11 --client 192.168.0.20

NOTES
The user id in the local host and the host specified by --client must have access to run commands as root using the 'sudo' command without the need for a password. The user id must be able to 'ssh' to remote host without the need for a password.

SEE ALSO
nfstest.test_util(3), nfstest_alloc(1), nfstest_cache(1), nfstest_dio(1), nfstest_file(1), nfstest_interop(1), nfstest_io(1), nfstest_lock(1), nfstest_pkt(1), nfstest_pnfs(1), nfstest_posix(1), nfstest_sparse(1), nfstest_ssc(1), nfstest_xid(1), packet.nfs.nfs4_const(3)

BUGS
No known bugs.

AUTHOR
Jorge Mora (mora@netapp.com)