TS/MP Management Programming Manual (G06.24+, H06.03+)

ZPWY-MAP- Definitions
NonStop TS/MP Management Programming Manual—540082-001
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ZPWY-MAP-DEF-SC
If the value for this field is too large, it can cause the requests for the server to be
queued at the server. For example, if ZMAXLINKS has a value of 20, there could
be 20 concurrent requests outstanding to a server process. If the transaction
service time is 1 second, a response time of more than 20 seconds can occur.
If this is an associative server, you should include links allocated by other
PATHMON environments when calculating the size of the RECEIVE-CONTROL
paragraph.
The value of ZMAXLINKS should always be greater than or equal to the value of
ZLINKDEPTH (unless ZMAXLINKS is set to 0).
If you do not assign a value to this field, the default is an unlimited number of links.
ZMAXSERVERS
is the maximum number of server processes in this server class that can run at the
same time. The value must be from 0 through 4095.
If the value in ZMAXSERVERS is greater than the number of SCPROCESS entries
added to the server class, the operating system assigns process names in the form
$Xnnn, $Ynnn, or $Znnn after the last predefined process name is used.
The sum of all ZMAXSERVERS values for all server classes cannot exceed the
number defined for ZMAXSERVERPROCESSES.
If you do not assign a value to this field, the default is 1.
ZNUMSTATIC
is the maximum number of static servers within this server class. These servers
can be started using the START SC command or as a result of a link request.
Static servers remain running until a STOP SC command is issued or all of their
links are returned by the link managers (that is, LINKMON processes or
Pathway/iTS TCPs). This value must be from 0 through 4095.
The value for ZMAXSERVERS minus the value for ZNUMSTATIC is the number of
dynamic servers for the server class. Links to dynamic servers are granted to a link
manager by the PATHMON process when a link request cannot be satisfied by a
static server. Dynamic server processes are started by the PATHMON process
only as the result of a link request; they are not started by the START SC
command.
Note. The value of ZMAXLINKS and the value of the TABLE OCCURS clause in the
RECEIVE-CONTROL paragraph of your COBOL server programs must correspond. The
value you specify for TABLE OCCURS must be greater than or equal to the ZMAXLINKS
value (or the ZMAXLINKS value must be equal to or less than the TABLE OCCURS
value). When the COBOL RECEIVE-CONTROL table is full, new requests to the server fail
with the file-system error 12 (File inuse). This error is most likely to occur during peak
transaction load times. For more information about the RECEIVE-CONTROL paragraph of
a COBOL program, see the COBOL Manual for TNS and TNS/R Programs.