подождите, пока PMCD примет клиентские соединения (wait for PMCD to accept client connections)
Имя (Name)
pmcd_wait
- wait for PMCD to accept client connections
Синопсис (Synopsis)
$PCP_BINADM_DIR/pmcd_wait
[-v?
] [-h
host] [-t
timeout]
Описание (Description)
pmcd_wait
waits for the Performance Metrics Collector Daemon
(PMCD) to be running and accepting client connections.
Unless directed to another host by the -h
option, pmcd_wait
will
try to contact pmcd(1) on the local host.
pmcd_wait
will timeout and abandon the attempt to connect to pmcd
after 60 seconds. This default timeout interval may be changed
using the -t
option, where the interval argument follows the
syntax described in PCPIntro(1) and in the simplest form may be
an unsigned integer (the implied units in this case are seconds).
On successful connection to pmcd
an exit status of zero is
returned.
If an error or timeout occurs, then a non-zero exit status is
returned as described below.
Параметры (Options)
The available command line options are:
-h
host, --host
=host
Connect pmcd(1) on host, rather than the one on the default
localhost.
-t
timeout, --interval
=timeout
Timeout after timeout seconds if not connected. The default
timeout value is 60 seconds.
-v
, --verbose
This option turns the verbose mode on. With the verbose
mode off (which is the default), no output will be
generated. With verbose mode on, error messages will be
output on stderr.
-?
, --help
Display usage message and exit.
Диагностика (Diagnostic)
Error messages will be output to stderr only if the verbose mode
is on.
The following exit status codes are returned:
0 pmcd_wait
was able to successfully connect to pmcd
within
the timeout period.
1
A usage error occurred, use -v
for more details.
2
No connection was made in the timeout interval. This will
happen if pmcd
is running but takes too long to complete
the client connection, or if pmcd
is not running and all
connection attempts in the timeout interval failed with
the error ECONNREFUSED.
3
A UNIX error occurred, use -v
for more details.
4
A PCP error occurred, use -v
for more details.
Окружение PCP (PCP environment)
Environment variables with the prefix PCP_
are used to
parameterize the file and directory names used by PCP. On each
installation, the file /etc/pcp.conf contains the local values
for these variables. The $PCP_CONF
variable may be used to
specify an alternative configuration file, as described in
pcp.conf(5).
Смотри также (See also)
PCPIntro(1), pmcd(1), pcp.conf(5) and pcp.env(5).