Monitoring

Cron Jobs as Health Indicator

The cron jobs table in the dashboard is the primary health indicator for the system. If cron jobs are running on schedule and showing no errors, the system is healthy. Key crons to watch:

Common Cron Errors

Logs

Logs are sent to AWS CloudWatch via ECS container stdout/stderr.

Log Groups

• /ecs/twin-backend-production -- Production backend logs
• /ecs/twin-backend-staging -- Staging backend logs

Useful Log Patterns

Code
# Find oracle update errors
"ORACLE_PRICE_UPDATE" AND "error"

# Find BitGo transaction failures
"BitGo" AND ("error" OR "failed")

# Find rebalance operations
"rebalance" AND ("started" OR "completed" OR "error")

# Find migration output
"migration" AND ("running" OR "completed" OR "error")

# Find cron job executions
"cron" AND "executing"

Health Check Endpoints

Key Metrics