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HP NonStop Shadowbase Command Definitions

Consumer Command Descriptions

HP NonStop Shadowbase Command Reference Manual—785421-002

136

Where <trace values> is one or more of the alphabetic characters A (for

all operations), S (for SQL operations), E (for Enscribe operations), and T

(for transaction commit and abort operations). For example:

SET CONS IOTRACEFILTER A

Means trace all operations.

SET CONS IOTRACEFILTER ST

Means to trace SQL operations as well as the commit and abort

operations.

The I/O trace format includes a header for each event to identify important

information pertaining to the event (e.g., TMF audit trail position,

timestamp, related DBS object name, etc.). Note that I/O error information

is displayed. The key will be displayed for Enscribe reads that result in an

error. A "K" will be displayed next to the offset value when the output

format is hexadecimal.

It is best to read the trace file content using a PC text editor (such as

CodeWright or NOTEPAD) after first doing a binary FTP of the

IOTRACEFILE to a PC file (a FUP COPY of the IOTRACEFILE in hex

mode can also be used, however the information may be difficult to read).

Note that IOTRACEFILTER can be altered while the Consumer is running.

IPMBLOCKING { ON }

{ OFF }

Initial Changed

Version Version Values Default Minimum Maximum Alter

2.000 ON OFF ON No

Client Server Extended Open Target

Enables or disables blocking of the interprocess messages. When ON,

multiple operations may be blocked and sent to a Consumer in a single

interprocess message. When the value is set to OFF, only one operation

at a time is in the message. The recommended setting for high

performance is ON. The default value is ON. IPMBLOCKING affects the

size of messages sent between Collectors and Consumers. If your

Collectors are writing to Consumers on a different node(s) then message

size may be an important consideration and you may need to turn it OFF.

This is a site-dependent situation.

Note: When the Collector parameter TURBOMODE is ON,

IPMBLOCKING is disregarded. When TURBOMODE is OFF and

IPMBLOCKING is OFF, a single event is sent at a time to a CONS.

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HP Integrity NonStop H-Series Betriebsanweisung Seite 145