Error: Database connection failed
Connection timeout after 30s
Retrying connection...

Warning: Cache miss for key 'user_123'
Fetching data from source
Cache updated successfully

Info: Processing batch job
Job ID: batch_001
Status: Running

Debug: Memory usage check
Current: 256MB allocated
Free: 512MB available

Alert: Disk space low
Current: 95% used
Action: Cleanup scheduled
