Pathway/iTS System Management Manual (G06.24+)

Configuring Pathway/iTS Objects
HP NonStop Pathway/iTS System Management Manual—426748-002
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Distributing the Transaction Load Across TCPs
= SET TCP MAXREPLY 32000
= SET TCP MAXTERMDATA 200000
= ADD TCP TCP-WEB
Distributing the Transaction Load Across TCPs
In general, you want to spread the workload across all available resources. In this
case, the load is the transaction load generated by web clients, terminals, or intelligent
devices.
For web clients and sockets IDS requesters, the router processes distribute connection
requests to started TERM objects in such a way that the workload is optimally
balanced among all the TCPs in the Pathway environment. However, for other
requesters, you should configure your TCPs for load balancing.
Assuming that all terminal activities generate the same load, each TCP should have
the same number of terminals configured to it. (The SET TCP MAXTERMS command
specifies the number of terminals that a TCP can have open at the same time.)
You will see a more consistent response time if the load is evenly distributed across
TCPs; however, this might work against manageability. In general, when processor
utilization for the TCPs is comparable, you can assume that the terminal load is evenly
spread across them.
Requesting Error Dumping
You can request error dumping by specifying either the SET TCP, DUMP ON
command or the CONTROL TCP, DUMP ON command.
•
Use the SET TCP command if you want to request error dumping and you have
not yet started the TCP.
•
Use the CONTROL TCP command if you want to request error dumping but you
have already started the TCP. For more information about using this command,
see Information to Include When Reporting Problems
on page 4-21.
In case of an internal or fatal error, the TCP generates an error dump and writes it to a
file. For example, this command directs the TCP to write error information to a file
named TCPDUMP:
= SET TCP, DUMP ON (FILE TCPDUMP)
After this command is entered and the TCP is started, if an internal or fatal TCP error
occurs, the TCP writes the contents of its data stack and its extended data segment to
TCPDUMP.
If you request the help of your service provider in analyzing a problem, the
representative will likely require a DUMP file. It is therefore recommended that you
always set the DUMP option to ON for production systems.