4.7Log Aggregation Architecture

[Service A]     [Service B]     [Service C]
  stdout          stdout          stdout
    |               |               |
    v               v               v
[Log Collector: Fluentd / Fluent Bit / Vector]
    |
    v
[Log Storage: Elasticsearch / Loki / CloudWatch Logs]
    |
    v
[Query UI: Kibana / Grafana / CloudWatch Insights]
    |
    v
[Alerting: based on log patterns and frequency]

Tool Recommendations

Component	Recommended	Alternative
Collection	Fluent Bit (low resource)	Fluentd, Vector
Storage	Grafana Loki (cost-effective)	Elasticsearch, CloudWatch
Query	Grafana (LogQL)	Kibana (KQL), CloudWatch Insights
Alerting	Grafana Alerts	ElastAlert, CloudWatch Alarms