nfstest_cache man page

nfstest_cache — NFS client side caching tests

Synopsis

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

Description

Verify consistency of attribute caching by varying acregmin, acregmax, acdirmin, acdirmax and actimo. Verify consistency of data caching by varying acregmin, acregmax, acdirmin, acdirmax and actimo.

Valid for any version of NFS.

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

Packet trace options

--createtraces
Create a packet trace for each test
--tbsize=TBSIZE
Capture buffer size for tcpdump [default: '50000']
--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: 32]
--rsize=RSIZE
Read size to use when reading files [default: 4096]
--wsize=WSIZE
Write size to use when writing files [default: 4096]
--iodelay=IODELAY
Seconds to delay I/O operations [default: 0.1]
--offset-delta=OFFSET_DELTA
Read/Write offset delta [default: 4096]

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: '/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: '']

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
--justbefore=JUSTBEFORE
Time in seconds to test a condition just before it is expected to come true [default: 2]
--acmin=ACMIN
Comma separated values to use for acregmin/acdirmin/actimeo [default: 10]
--acmax=ACMAX
Comma separated values to use for acregmax/acdirmax, first value of acmin will be used as acregmin/acdirmin [default: 20]

Tests

acregmin_attr

Verify consistency of attribute caching by varying the
acregmin NFS option.

The cached information is assumed to be valid for attrtimeo
which starts at acregmin.

acregmax_attr

Verify consistency of attribute caching by varying the
acregmax NFS option.

The cached information is assumed to be valid for attrtimeo which
starts at acregmin. An attribute revalidation to the server
that shows no attribute change doubles attrtimeo up to acregmax.
An attribute revalidation to the server that shows a change has
occurred resets it to acregmin.

acdirmin_attr

Verify consistency of attribute caching by varying the
acdirmin NFS option.

The cached information is assumed to be valid for attrtimeo
which starts at acdirmin. Test that this is so.

acdirmax_attr

Verify consistency of attribute caching by varying the
acdirmax NFS option.

The cached information is assumed to be valid for attrtimeo which
starts at acdirmin. An attribute revalidation to the server
that shows no attribute change doubles attrtimeo up to acdirmax.
An attribute revalidation to the server that shows a change has
occurred resets it to acdirmin.

actimeo_attr

Verify consistency of attribute caching by varying the
actimeo NFS option.

The cached information is assumed to be valid for attrtimeo
which starts and ends at actimeo.

acregmin_data

Verify consistency of data caching by varying the
acregmin NFS option.

acregmax_data

Verify consistency of data caching by varying the
acregmax NFS option.

The cached information is assumed to be valid for attrtimeo which
starts at acregmin. An attribute revalidation to the server
that shows no attribute change doubles attrtimeo up to acregmax.
An attribute revalidation to the server that shows a change has
occurred resets it to acregmin.

acdirmin_data

Verify consistency of data caching by varying the
acdirmin NFS option.

The cached information is assumed to be valid for attrtimeo
which starts at acdirmin. Test that this is so.

acdirmax_data

Verify consistency of data caching by varying the
acdirmax NFS option.

The cached information is assumed to be valid for attrtimeo which
starts at acdirmin. An attribute revalidation to the server
that shows no attribute change doubles attrtimeo up to acdirmax.
An attribute revalidation to the server that shows a change has
occurred resets it to acdirmin.

actimeo_data

Verify consistency of data caching by varying the
actimeo NFS option.

The cached information is assumed to be valid for attrtimeo
which starts and ends at actimeo.

Examples

Required options are --server and --client
$ nfstest_cache --server 192.168.0.11 --client 192.168.0.20

Testing with different values of --acmin and --acmax (this takes a long time)
$ nfstest_cache --server 192.168.0.11 --client 192.168.0.20 --acmin 10,20 --acmax 20,30,60,80

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_delegation(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_xid(1)

Bugs

No known bugs.

Author

Jorge Mora (mora@netapp.com)

Referenced By

nfstest(1), nfstest_alloc(1), nfstest_delegation(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_xid(1).

23 November 2015 NFStest 2.1.1 nfstest_cache 1.0.1