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Open Metrics & Monitoring System →Open Instagram Feed →

Metrics & Monitoring System vs Instagram Feed

Metrics & Monitoring System

Metrics & Monitoring System

Time-series ingestion at millions of points/sec, Prometheus-style scraping, columnar TSDB storage, alerting pipeline.

Components (8)

Instrumented Services
Metrics Collector
Ingest Queue
Time-Series DB
Downsampler
Query Engine
Alert Manager
Grafana Dashboard

Headline numbers

Ingest rate~667K data points/sec
High-res storage~250 GB
Series count10M time series

Instagram Feed

Instagram Feed

Fan-out on write vs read, ranking, CDN.

Components (10)

Mobile Client
CDN
API Gateway
Feed Service
Post Service
Kafka
Fan-out Worker
Redis
Postgres
S3

Headline numbers

Posts / sec (avg)~3,000/sec
Feed read QPS~58,000/sec
Fan-out writes / sec~600,000/sec

Key differences

Only in Metrics & Monitoring System

None.

In both

Client
Service
Queue
Database

Only in Instagram Feed

CDN
API Gateway
Redis
S3

Flow shape

Metrics & Monitoring System flows

Metrics ingestion (pull/scrape)3 steps
Dashboard renders a chart2 steps
Alert fires and pages on-call2 steps
⚠ Ingest spike: TSDB overloaded3 steps

Instagram Feed flows

Post a photo (fan-out on write)7 steps
Open feed (precomputed timeline)5 steps
⚠ Fan-out Worker is down7 steps
⚠ Timeline cache flushed (Redis restart)4 steps