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

--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: 32]

--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

--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_ssc(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_ssc(1), nfstest_xid(1).

14 February 2017 NFStest 2.1.5 nfstest_cache 1.0.1