How to start, trace 8i and 9i Data Collection Service 

(Data Gatherer and Intelligent Agent)?

In 9i, the Data Collection Service is integrated in the Intelligent Agent. You must trace the Intelligent Agent to trace the Data Collection Service.

In 8i, The Data Collection Service is a separate process, the Data Gatherer. You must trace the Data Gatherer process.

9i Data Collection Service on Unix

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1. Stop the Intelligent Agent if it is started

$> agentctl stop

2. Set the environment variable VP_DEBUG to 1

$> setenv VP_DE<BUG:1> or export VP_DEBUG=1

3. Start the Intelligent Agent

$> agentctl start

Data Collection Service debug information will be logged in the file dbsnmp.

nohup located in ORACLE_HOME/network/log (by default)

9i Data Collection Service on Windows

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1. Stop the intelligent agent service if it is started

2. Open a dos command window

3. Set the environment variable VP_DEBUG

c:\oracle\product\ia\bin> set VP_DEBUG=1

4. Start the intelligent agent

c:\oracle\product\ia\bin> dbsnmp -agent_name <

Intelligent_agent_service_name>

for example : dbsnmp -agent_name Oracleora92Agent

Data Collection Service debug information will be logged at screen. To redirect debug information to file odg.log for example :

dbsnmp agent_name Oracleora901Agent > stdout.log 2> odg.log

Pre-9i Data Collection Service on Unix

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1. Stop the Data Collection Service (Data Gatherer process) if it is started

$> vppcntl -stop (-status or -start)

2. Start the Data Collection Service with the following command

$> vppdc -debug > output.log 2> odg.log &

This will redirect Data Collection Service debug information in the file odg.log

Pre-9i Data Collection Service on Windows

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1. Stop the Data Collection Service (Data Gatherer service) if it is started

2. Open a dos command window

3. Start the Data Collection Service with the following command c:\oracle\product\ia\bin> vppdc -console -debug > stdout.txt 2> odg.log

This will redirect Data Collection Service debug information in the file odg.log which is located in ORACLE_HOME\odg\log