Observing and Debugging Hybrid Data Transfers
Slack said “files aren’t in S3.” The agent host said “fine.” CloudWatch had three log groups and no shared id. Twenty minutes later someone found the run under a different instrument prefix—and a completion marker that never wrote.
Read MoreCloudWatch Logs Insights: 8 Queries I Reuse in Production
This post is for teams already shipping workloads to AWS who reach for the CloudWatch console when something breaks—but re-type the same Logs Insights query from memory every time. It is not a replacement for APM or full distributed tracing, and it assumes your apps write structured or semi-structured logs to CloudWatch.
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