openhpid(8) OpenHPI openhpid(8)NAMEopenhpid - HPI instance to which multiple clients can connect.
SYNOPSISopenhpid-c config_file [OPTION]
DESCRIPTION
The OpenHPI daemon runs as a background process and accepts connections
from remote clients that invoke HPI function calls. The daemon wraps
the OpenHPI library with a sockets-based API that is archicture neutral
for all types of clients.
When you run the daemon, the standard method for locating the OpenHPI
configuration file is used. However, the daemon will accept a configu‐
ration file as a command line option (-c) to override the default file.
A command option (-p) or environment variable determines the port num‐
ber the daemon will listen on for client connections. The default port
is 4743.
The daemon creates a PID file in the /var/run subdirectory. This direc‐
tory is only writable by the root user. Thus the daemon will fail when
run as a normal user if the PID file location is not overridden. To
override the PID file location you can use the -f command line option.
The client and the daemon do not have to be on the same hardware archi‐
tecture. The daemon could be running on a P-series processor and the
client running on an x86-series processor. The client library and dae‐
mon use a marshaling technique to resolve architecture and structure
padding conflicts. The user does not need to concern themselves with
architectureal differences between the client and daemon. The one
exception to this rule is 64-bit architectures. The client and daemon
currently cannot resolve differences between 32-bit and 64-bit archi‐
tectures.
OPTIONS-f pidfile
This overrides the default location of the pidfile.
-n This forces the daemon to run in the foreground.
-p port
This is used to override the port to listen on by the daemon.
-s seconds
Read timeout used by the daemon sockets. Default is unlimited.
-t threads
Sets the maximum number of connection threads. Default is unlim‐
ited.
-v Display verbose messages
ENVIRONMENTAL VARIABLES
All of these environment variables can instead be set in the
openhpi.conf configuration file, except for OPENHPI_DAEMON_PORT and
OPENHPI_CONF.
OPENHPI_DAEMON_PORT=PORT_NUMBER
The port number the host will listen on for clent connections.
Default port is 4743.
OPENHPI_LOG_ON_SEV
Valus can be one of: CRITICAL,MAJOR,MINOR,INFORMATIONAL,OK,DEBUG.
Events of this severity or higher will be logged to the domain
event log. The default is MINOR.
OPENHPI_ON_EP=ENTITY_PATH
Entity path returned (e.g. {SYSTEM_CHASSIS,1}) when saHpiResourceI‐
dGet() is called.
OPENHPI_EVT_QUEUE_LIMIT=NUMBER
Maximum number of events allowed in a subscribed session's queue.
Default is 10000.
OPENHPI_DEL_SIZE_LIMIT=NUMBER
Maximum number of events allowed in the domain event log. Default
is 10000
OPENHPI_DEL_SAVE
Set to YES to persist the domain event logs to disk. They will be
loaded in case the daemon restarts. Default is NO.
OPENHPI_DAT_SIZE_LIMIT=NUMBER
Maximum number of alarms allowed in the domain alarm table.
Default is unlimited.
OPENHPI_DAT_USER_LIMIT=NUMBER
Maximum number of user alarms allowed in the domain alarm table.
Default is unlimited.
OPENHPI_DAT_SAVE
Set to YES to persist the domain alarm tables to disk. They will be
loaded in case the daemon restarts. Default is NO.
OPENHPI_PATH="/path/to/plugins:/another/path/to/plugins"
This is a colon delimited list of directories used when searching
for an OpenHPI plugin to load. The default is $prefix/lib/openhpi.
OPENHPI_VARPATH="/path/to/dir"
This sets the directory used to store openhpi internal data. The
domain event logs and alarm tables are saved there (if configured
to) along with resource ID to entity path mappings. Default is
$prefix/var/lib/openhpi.
OPENHPI_CONF="/path/to/configurationg/file"
This is another way of telling the daemon where to find the config‐
uration file.
SEE ALSO
The following man pages may also be of interest
openhpi
General information about OpenHPI
AUTHORS
Authors of this man page:
Renier Morales (renier@openhpi.org)
2.10.2 2008-03-04 openhpid(8)
