NFSTEST_DELEGATION(1) nfstest_delegation 1.8 NFSTEST_DELEGATION(1)

nfstest_delegation - Delegation tests

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

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, removing, renaming and changing the permissions on the same file. Note that reading a file from a different client can only recall a write delegation. Removing the delegated file from a different client recalls the delegation and the server may or may not allow any more writes from the client after the delegation has been returned. Renaming either the delegated file (as source) or into the delegated file (as target) recalls the delegation. In the case where the delegated file is the target of rename, the existing target is removed before the rename occurs, therefore the server may or may not allow nay more writes from the client after the delegation has been removed just like in the case when removing the delegated file.

Also, verify that a read delegation is not recalled when a different client is granted a read delegation. After a delegation is recalled, the client may send an OPEN with CLAIM_DELEGATE_CUR before returning the delegation specially when there is a open pending on the client. In addition, the stateid returned by the new open should be the same as the original OPEN stateid. Also, a delegation should not be granted when re-opening the file before returning the delegation. The client may flush all written data before returning the WRITE delegation. The LOCK should be sent as well before returning a delegation which has been recalled. Finally, a delegation should not be granted on the second client who cause the delegation recall on the first client.

show program's version number and exit
show this help message and exit
File where options are specified besides the system wide file /etc/nfstest, user wide file $HOME/.nfstest or in the current directory .nfstest file

Server name or IP address
Exported file system to mount [default: '/']
NFS version, e.g., 3, 4, 4.1, etc. [default: 4.1]
Mount point [default: '/mnt/t']
NFS server port [default: 2049]
NFS protocol name [default: 'tcp']
Security flavor [default: 'sys']
Multiple TCP connections option [default: '1']
Mount options [default: 'hard,rsize=4096,wsize=4096']
Data directory where files are created, directory is created on the mount point [default: '']

Verbose level for debug messages [default: 'opts|info|dbg1|dbg2|dbg3']
Verbose level for test messages [default: '1']
Create log file
Create rexec log files
Display warnings
Informational tag, it is displayed as an INFO message [default: '']
Do not use terminal colors on output
Use terminal colors on output -- useful when running with nohup

Create a packet trace for each test
Capture buffer size for tcpdump [default: 192k]
Seconds to delay before stopping packet trace [default: 2.0]
Do not remove any trace files [default: remove trace files if no errors]
Remove trace files [default: remove trace files if no errors]
Device interface [default: automatically selected]

Number of files to create [default: 2]
File size to use for test files [default: 64k]
Read size to use when reading files [default: 4k]
Write size to use when writing files [default: 4k]
Seconds to delay I/O operations [default: 0.1]
Read/Write offset delta [default: 4k]

Full path of binary for sudo [default: '/usr/bin/sudo']
Full path of binary for kill [default: '/usr/bin/kill']
Full path of binary for nfsstat [default: '/usr/sbin/nfsstat']
Full path of binary for tcpdump [default: '/usr/sbin/tcpdump']
Full path of binary for iptables [default: '/usr/sbin/iptables']
Full path of log messages file [default: '/var/log/messages']
Full path of tracing events directory [default: '/sys/kernel/debug/tracing/events']
Full path of trace pipe file [default: '/sys/kernel/debug/tracing/trace_pipe']
Temporary directory [default: '/tmp']

Do not cleanup created files
Do not display timestamps in debug messages
File containing test messages to mark as bugs if they failed
Do not mount server and run the tests on local disk space
Base name for all files and logs [default: automatically generated]
Set NFS kernel debug flags and save log messages [default: '']
Set RPC kernel debug flags and save log messages [default: '']
List of trace points modules to enable [default: '']
Get NFS stats [default: 'False']
Display main packets related to the given test
Fail every NFS error found in the packet trace
IP address of localhost

Generate xUnit compatible test report
Path to xout report file

Comma separated list of tests to run, if list starts with a '^' then all tests are run except the ones listed [default: 'all']
Remote NFS client and options used for recall delegation tests. Clients are separated by a ',' and each client definition is a list of arguments separated by a ':' given in the following order if positional arguments is used (see examples): clientname:server:export:nfsversion:port:proto:sec:mtpoint [default: 'nfsversion=3:proto=tcp:port=2049']
Comma separated list of valid NFS versions to use in the --client option. An NFS version from this list, which is different than that given by --nfsversion, is selected and included in the --client option [default: 4.0,4.1]
Starting offset for lock [default: 0]
Starting offset for lock on pending open [default: 8192]
Number of bytes to lock [default: 4096]
Truncate file when writing from the second file for the recall tests
Seconds to delay after setup so all opens are released [default: 4.0]

Run all basic delegation tests: basic01, basic02, basic03, basic04,
basic05, basic06, basic07, basic08, basic09, basic10, basic11, basic12

Run all basic delegation tests with file stat: basic03, basic04,
basic09, basic10

Run all basic delegation tests with file lock: basic05, basic06,
basic11, basic12

Basic read delegation test

Basic write delegation test

Basic read delegation test with file stat

Basic write delegation test with file stat

Basic read delegation test with file lock

Basic write delegation test with file lock

Basic write delegation test using RDWR open while reading

Basic write delegation test using RDWR open while writing

Basic write delegation test using RDWR open while reading with file stat

Basic write delegation test using RDWR open while writing with file stat

Basic write delegation test using RDWR open while reading with file lock

Basic write delegation test using RDWR open while writing with file lock

Run all recall delegation tests: recall01, recall02, recall03, recall04,
recall05, recall06, recall07, recall08, recall09, recall10, recall11,
recall12, recall13, recall14, recall15, recall16, recall17, recall18,
recall19, recall20, recall21, recall22, recall23, recall24, recall25,
recall26, recall27, recall28, recall29, recall30, recall31, recall32,
recall33, recall34, recall35, recall36, recall37, recall38, recall39,
recall40, recall41, recall42, recall43, recall44, recall45, recall46,
recall47, recall48, recall49, recall50, recall51, recall52, recall53,
recall54

Run all tests using SETATTR to recall the delegation: recall07,
recall08, recall09, recall10, recall35, recall36, recall37, recall38

Run all tests recalling the delegation by removing the delegated file:
recall11, recall12, recall13, recall14, recall39, recall40, recall41,
recall42

Run all tests recalling the delegation by renaming the delegated file:
recall15, recall16, recall17, recall18, recall19, recall20, recall21,
recall22, recall43, recall44, recall45, recall46, recall47, recall48,
recall49, recall50

Run all recall delegation tests having a pending open: recall23,
recall24, recall25, recall26, recall51, recall52, recall53, recall54

Recall read delegation by writing from a second client

Recall write delegation by writing from a second client

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

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

Recall write delegation by reading from a second client

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

Recall read delegation by changing the permissions to the file

Recall write delegation by changing the permissions to the file

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

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

Recall read delegation by removing the file

Recall write delegation by removing the file

Recall read delegation by removing the file with file lock

Recall write delegation by removing the file with file lock

Recall read delegation by renaming the file

Recall write delegation by renaming the file

Recall read delegation by renaming the file with file lock

Recall write delegation by renaming the file with file lock

Recall read delegation by renaming into the file

Recall write delegation by renaming into the file

Recall read delegation by renaming into the file with file lock

Recall write delegation by renaming into the file with file lock

Recall read delegation by writing from a second client with file lock,
having a pending read open

Recall read delegation by writing from a second client with file lock,
having a pending write open.
Delegation is returned by the client when the second open is done so
there is no delegation recall

Recall write delegation by writing from a second client with file lock,
having a pending read open

Recall write delegation by writing from a second client with file lock,
having a pending write open

Recall write delegation by reading from a second client using RDWR
open while reading

Recall write delegation by reading from a second client using RDWR
open while writing

Recall write delegation by writing from a second client using RDWR
open while reading

Recall write delegation by writing from a second client using RDWR
open while writing

Recall write delegation by reading from a second client using RDWR
open while reading with file lock

Recall write delegation by reading from a second client using RDWR
open while writing with file lock

Recall write delegation by writing from a second client using RDWR
open while reading with file lock

Recall write delegation by writing from a second client using RDWR
open while writing with file lock

Recall write delegation by changing the permissions to the file
from a second client using RDWR open while reading

Recall write delegation by changing the permissions to the file
from a second client using RDWR open while writing

Recall write delegation by changing the permissions to the file
from a second client using RDWR open while reading with file lock

Recall write delegation by changing the permissions to the file
from a second client using RDWR open while writing with file lock

Recall write delegation by removing the file from a second client
using RDWR open while reading

Recall write delegation by removing the file from a second client
using RDWR open while writing

Recall write delegation by removing the file from a second client
using RDWR open while reading with file lock

Recall write delegation by removing the file from a second client
using RDWR open while writing with file lock

Recall write delegation by renaming the file from a second client
using RDWR open while reading

Recall write delegation by renaming the file from a second client
using RDWR open while writing

Recall write delegation by renaming the file from a second client
using RDWR open while reading with file lock

Recall write delegation by renaming the file from a second client
using RDWR open while writing with file lock

Recall write delegation by renaming the file from a second client
using RDWR open while reading

Recall write delegation by renaming the file from a second client
using RDWR open while writing

Recall write delegation by renaming the file from a second client
using RDWR open while reading with file lock

Recall write delegation by renaming the file from a second client
using RDWR open while writing with file lock

Recall write delegation by writing from a second client using RDWR
open while reading with file lock, having a pending read open

Recall write delegation by writing from a second client using RDWR
open while reading with file lock, having a pending write open

Recall write delegation by writing from a second client using RDWR
open while writing with file lock, having a pending read open

Recall write delegation by writing from a second client using RDWR
open while writing with file lock, having a pending write open

Run all read delegation tests: basic01, basic03, basic05, recall01,
recall03, recall07, recall09, recall11, recall13, recall15, recall17,
recall19, recall21, recall23, recall24

Run all write delegation tests: basic02, basic04, basic06, basic07,
basic08, basic09, basic10, basic11, basic12, recall02, recall04,
recall05, recall06, recall08, recall10, recall12, recall14, recall16,
recall18, recall20, recall22, recall25, recall26, recall27, recall28,
recall29, recall30, recall31, recall32, recall33, recall34, recall35,
recall36, recall37, recall38, recall39, recall40, recall41, recall42,
recall43, recall44, recall45, recall46, recall47, recall48, recall49,
recall50, recall51, recall52, recall53, recall54

Run all tests: basic01, basic02, basic03, basic04, basic05, basic06,
basic07, basic08, basic09, basic10, basic11, basic12, recall01,
recall02, recall03, recall04, recall05, recall06, recall07, recall08,
recall09, recall10, recall11, recall12, recall13, recall14, recall15,
recall16, recall17, recall18, recall19, recall20, recall21, recall22,
recall23, recall24, recall25, recall26, recall27, recall28, recall29,
recall30, recall31, recall32, recall33, recall34, recall35, recall36,
recall37, recall38, recall39, recall40, recall41, recall42, recall43,
recall44, recall45, recall46, recall47, recall48, recall49, recall50,
recall51, recall52, recall53, recall54

Run the basic delegation tests (no client option):
nfstest_delegation --server 192.168.0.2 --export /exports

Use short options instead:
nfstest_delegation -s 192.168.0.2 -e /exports

Run both the basic and recall tests using positional arguments with nfsversion=3 for the second client:
nfstest_delegation -s 192.168.0.2 -e /exports --client 192.168.0.10:::3

Use named arguments instead:
nfstest_delegation -s 192.168.0.2 -e /exports --client 192.168.0.10:nfsversion=3

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.

nfstest.test_util(3), nfstest_alloc(1), nfstest_cache(1), nfstest_dio(1), nfstest_fcmp(1), nfstest_file(1), nfstest_interop(1), nfstest_io(1), nfstest_lock(1), nfstest_pkt(1), nfstest_pnfs(1), nfstest_posix(1), nfstest_rdma(1), nfstest_sparse(1), nfstest_ssc(1), nfstest_xattr(1), nfstest_xid(1), packet.nfs.nfs3_const(3), packet.nfs.nfs4_const(3)

No known bugs.

Jorge Mora (mora@netapp.com)

21 March 2023 NFStest 3.2