The most fundamental and initial step in troubleshooting any failed integration instance in Oracle Integration Cloud (OIC) is to examine the instance's activity stream and logs. This provides the specific error messages, fault details, and the exact point of failure within the integration flow. This diagnostic information is essential for understanding the root cause, whether it's a data mapping issue, a connection failure, or a problem with the invoked service. Without this information, any other action would be a guess.

B. Increasing the number of instances is a scaling solution for performance issues, not a fix for a functional error that causes an instance to fail.

C. Immediately restarting the integration instance without understanding the cause is not a valid troubleshooting step and the error will likely recur.

D. Contacting Oracle Support is an escalation path, which should only be pursued after initial investigation and log analysis have been performed.

1. Oracle Cloud Infrastructure Documentation - Monitor Integrations in Oracle Integration Generation 2: "The Track Instances page enables you to monitor integration instances and view the status of your running integrations... If an instance has failed

you can view the error message from the activity stream." This document establishes the monitoring page and its activity stream as the primary tool for investigating instance failures.

Source: Oracle Help Center

Using Integrations in Oracle Integration Generation 2

Section: "Monitor Integrations".

2. Oracle Cloud Infrastructure Documentation - View the Dashboard: "The dashboard provides a quick overview of the current system status... From here

you can click a specific integration to access the Track Instances page to begin troubleshooting." This highlights that the standard workflow directs users to the instance tracking/monitoring pages to begin troubleshooting.

Source: Oracle Help Center

Using Integrations in Oracle Integration Generation 2

Section: "View the Dashboard".

3. Oracle Cloud Infrastructure Documentation - Manage Errors: "Oracle Integration provides several features for managing and troubleshooting errors... You can view details about errors on the Track Instances page." This explicitly links error management and troubleshooting to the instance tracking feature

where logs and activity streams are located.

Source: Oracle Help Center

Using Integrations in Oracle Integration Generation 2

Section: "Manage Errors".