ASAP 2.8 Server Manual

Introduction to Availability Statistics and

Performance (ASAP)

HP NonStop ASAP Server Manual—522303-007

1-13

Node Statistics Gathering Process

Node SGPs collect Expand end-to-end node statistics for the Node entity. These

processes use the Subsystem Programmatic Interface (SPI) to collect path information

and traffic statistics between two Expand end nodes.

The Node SGP gathers availability information, bundles it in a single message, and

forwards it to the ASAP Collect process. The Collect process unpacks the information

and stores it in the normalized ASAP database so the ASAP NODE command or

ASAP Client can retrieve it.

Process Statistics Gathering Process

Process SGPs collect availability information about user selected processes. Process

availability information is obtained using the Guardian API. The Process SGP reports

on objective thresholds when they do not meet the user-defined values.

Process monitoring in ASAP 2.4 has been enhanced to provide logical grouping of

processes, aggregation of process domains, and the ability to restrict the historical

database to contain only aggregate records for certain process groups.

Query Statistics Gathering Process

Query SGPs collect availability information about SQL queries that originate from

ODBC clients. They use the EMS statistics events from ODBC to track and report on

executing and completed SQL queries.

A Query SGP continuously writes records about queries as statistics events are

generated for those queries. It also wakes up at each interval and computes availability

and statistics information about running queries.

RDF Statistics Gathering Process

RDF SGPs collect RDF availability information about the Extractor and Duplicator

nodes. The RDF SGP reports on objective thresholds when they do not meet the user-

defined values.

Spooler Statistics Gathering Process

Spooler SGPs collect Spooler availability information. Process availability information is

obtained using the Spooler API. The availability information gathered is performance

utilization and operational state information. The Spooler SGP reports on objective

thresholds when they do not meet the user-defined values.

The Spooler SGP gathers availability information, bundles it in a single message, and

forwards it to the ASAP Collector process. The Collector process unpacks the

information and stores it in the normalized ASAP database so the ASAP SPOOLER

command or ASAP Client can retrieve it.