mpdcheck(1) mpd cmds mpdcheck(1)NAMEmpdcheck - mpdcheckFILE
/sandbox/balaji/maint/mpich2-1.2.1-tmp/src/pm/mpd/mpdcheck.py
DESCRIPTION
This script is a work in progress and may change frequently as we work
with users and gain additional insights into how to improve it.
This script prints useful information about the host on which it runs.
It is here to help us help users detect problems with configurations of
their computers.
For example, some computers are configured to think of them‐
selves simply as 'localhost' with 127.0.0.1 as the IP address.
This might present problems if a process on that computer wishes
to identify itself by host and port to a process on another com‐
puter. The process on the other computer would try to contact
'localhost'.
If you are having problems running parallel jobs via mpd on one or more
hosts, you might try running this script once on each of those hosts.
Any output with *** at the beginning indicates a potential problem that
you may have to resolve before being able to run parallel jobs via mpd.
For help: mpdcheck-h (or --help) prints this message
In the following modes, the -v (verbose) option provides info about
what mpdcheck is doing; the -l (long messages) option causes long
informational messages to print in situations where problems are spot‐
ted.
The three major modes of operation for this program are:
mpdcheck
looks for config problems on 'this' host; prints as nec
mpdcheck-pc
print config info about 'this' host, e.g. contents of /etc/hosts, etc.
mpdcheck-f some_file [-ssh]
prints info about 'this' host and locatability info about the ones
listed in some_file as well (note the file might be mpd.hosts);
the -ssh option can be used in conjunction with the -f option to
cause ssh tests to be run to each remote host
mpdcheck-s
runs this program as a server on one host
mpdcheck-c server_host server_port
runs a client on another (or same) host; connects to the specifed
host/port where you previously started the server
FUNCTIONS
ctime(...) ctime(seconds) -> string
Convert a time in seconds since the Epoch to a string in local
time. This is equivalent to asctime(localtime(seconds)). When
the time tuple is not present, current time as returned by
localtime() is used.
exit(...) exit([status])
Exit the interpreter by raising SystemExit(status). If the sta‐
tus is omitted or None, it defaults to zero (i.e., success). If
the status is numeric, it will be used as the system exit sta‐
tus. If it is another kind of object, it will be printed and
the system exit status will be one (i.e., failure).
gethostbyaddr(...) gethostbyaddr(host) -> (name, aliaslist,
addresslist)
Return the true host name, a list of aliases, and a list of IP
addresses,
for a host.
The host argument is a string giving a host name or IP
number.
gethostbyname_ex(...) gethostbyname_ex(host) -> (name, aliaslist,
addresslist)
Return the true host name, a list of aliases, and a list of IP
addresses,
for a host.
The host argument is a string giving a host name or IP
number.
gethostname(...) gethostname() -> string
Return the current host name.
kill(...) kill(pid, sig)
Kill a process with a signal.
select(...) select(rlist, wlist, xlist[, timeout]) -> (rlist, wlist,
xlist)
Wait until one or more file descriptors are ready for some kind
of I/O. The first three arguments are sequences of file
descriptors to be waited for: rlist -- wait until ready for
reading wlist -- wait until ready for writing xlist -- wait for
an ``exceptional condition'' If only one kind of condition is
required, pass [] for the other lists. A file descriptor is
either a socket or file object, or a small integer gotten from a
fileno() method call on one of those.
The optional 4th argument specifies a timeout in seconds; it may
be
a floating point number to specify fractions of seconds.
If it is absent or None, the call will never time out.
The return value is a tuple of three lists corresponding to the
first three arguments; each contains the subset of the corre‐
sponding file descriptors that are ready.
*** IMPORTANT NOTICE *** On Windows and OpenVMS, only sockets
are supported; on Unix, all file descriptors.
system(...) system(command) -> exit_status
Execute the command (a string) in a subshell.
DATA
SIGKILL = 9 __author__ = 'Ralph Butler and Rusty Lusk' __credits__ = ''
__date__ = 'Wed Nov 18 10:51:09 2009' __version__ = '$Revision: 1.19 $'
argv = ['/usr/bin/pydoc', 'mpdcheck'] stdout = <open file '<stdout>',
mode 'w' at 0x2b45ea478198>
VERSION
1.19
DATE
Wed Nov 18 10:51:09 2009
AUTHOR
Ralph Butler and Rusty Lusk
CREDITS
18 November 2009 mpdcheck(1)
