TS/MP System Management Manual (H06.05+, J06.03+)

Glossary
HP NonStop TS/MP System Management Manual—541819-007
Glossary-24
server class
messages to the clients or requesters. A server process is a running instance of a
server program. (2) A combination of hardware and software designed to provide
services in response to requests received from clients across a network. For example,
Tandem’s Himalaya servers provide transaction processing, database access, and
other services. (In the NonStop TS/MP and Pathway/TS manual set, the word “server”
is generally used only when definition 1 is meant; for definition 2, “system” is usually
used instead of “server.”) See also client, requester, client/server model, and
requester/server model.
server class. A group of duplicate copies of a single server process, all of which execute
the same object program. Server classes are configured through the PATHMON
process.
server-class send operation. The sending of a message to a Pathway server class by
making a call to the Pathsend SERVERCLASS_SEND_ procedure. See also SEND
operation.
SERVER object. A definition of a server class within the configuration of a PATHMON
process.
service. A function performed by a server process or program on behalf of a requester or
client. A server can perform one or several services. The concept of a service is built
into the design of the Novell TUXEDO system and the NonStop TUXEDO system; for
these products, a service is a module of application code that carries out a service
request.
simple token. In the Subsystem Programmatic Interface (SPI), a token consisting of a
token code and a value that is either a single elementary field, such as an integer or a
character string, or a fixed (nonextensible) structure. See also extensible structured
token and token (definition 2).
single-threaded. A programming model that provides a single thread of control within a
program. For example, a single-threaded server handles only one request at a time
and must complete that request before accepting another. See also thread and
multithreaded.
special register. A data item defined by the SCREEN COBOL compiler, rather than
explicitly in the program. Each special register has a particular purpose and should be
used only as defined. The SCREEN COBOL language defines a different set of special
registers from those defined by the standard COBOL language.
SPI. See Subsystem Programmatic Interface (SPI).
static server. A server process that the PATHMON process creates when a START
SERVER command is issued. The PATHMON process starts the number of static
servers defined by the NUMSTATIC attribute for the server class. See also dynamic
server.