Utilizing Workflow Result Logs

When you execute a workflow, each node's output is displayed on the console in real-time. Output lines are prefixed with [node-name] to identify which node generated them. Step boundaries are marked with cowsay-style ASCII art.

Logs can also be saved to files, but actor-IaC automatically saves all logs to an H2 database. The log database is automatically created in the current directory, requiring no user configuration. H2's AUTO_SERVER mode allows multiple terminals to execute workflows simultaneously while writing to the same database. Writing is performed via asynchronous batch processing, so it does not affect workflow execution speed.

You can query the database using the log-info command to display session lists, extract logs for specific nodes, filter by log level, and compare with past execution results. When some nodes fail, you can investigate the failure cause from the log database. The db-clear command clears the database.

Related Documents

This section contains the following related documents:

Output Destinations

Document	Description
Console Output	Understanding real-time console output format
Cowsay Character	Customizing cowsay ASCII art characters
Log File Output	Saving logs to files
Database Location	Configuring the H2 log database location
Output Multiplexer	How output is delivered to multiple destinations

Database Operations

Document	Description
Multi-Process Write	How multiple processes write to the same database
Database Write	Internal details of database writing
Database Read	Querying the log database

Debugging and Troubleshooting

Document	Description
Troubleshooting	Common issues and solutions
Sub-workflow Debugging	Debugging sub-workflow execution

Log Analysis

Document	Description
Extract Node Logs	Extracting logs for specific nodes
Compare with Past	Comparing with past execution results
Check Error Logs	Filtering and analyzing error logs
DB Clear Command	Clearing the log database