Menene SQS da SNS don aika saƙo?

Question

Accepted Answer

**SQS** (Simple Queue Service) da **SNS** (Simple Notification Service) aiki ne na AWS don aika saƙo waɗanda suke ba da damar **baddadi, aiki na baje-baje** tsakanin sassan aikace-aikace. SQS shine jere na saƙo (ɗaya-zuwa-ɗaya na aiki); SNS shine pub/sub (ɗaya-zuwa-da-yawa na yaɗa saƙo).

## SQS — jere na saƙo (baddadi, aiki na baje-baje)

```text
SQS is a managed message QUEUE: producers send messages, consumers process them:
  → producer → [QUEUE] → consumer(s) process messages (at their own pace)
  → DECOUPLES components (producer doesn't wait for/depend on the consumer)
  → BUFFERS load (queue absorbs spikes; consumers process steadily)
  → RELIABLE (messages persist until processed; retries; dead-letter queues for failures)
  → SCALABLE (add more consumers to process faster)
→ Use for: async task processing, decoupling services, smoothing load spikes
```

## SNS — pub/sub (ɗaya-zuwa-da-yawa na yaɗa saƙo)

```text
SNS is PUBLISH/SUBSCRIBE: publish a message to a TOPIC → ALL subscribers receive it:
  → publisher → [TOPIC] → fans out to MANY subscribers (one-to-many)
  → subscribers: SQS queues, Lambda functions, HTTP endpoints, email, SMS
  → use for: notifications, fan-out, broadcasting events to multiple consumers
```

## Tsarin fan-out (SNS + SQS tare)

```text
SNS topic → fans out to MULTIPLE SQS queues → each processed independently:
  Event → SNS topic → ┬→ SQS queue A → service A processes
                      ├→ SQS queue B → service B processes
                      └→ Lambda → does something else
→ One event triggers multiple independent processing pipelines (common architecture).
```

## Me ya sa haka ya matuwa

Jinyin SQS da SNS yana da mahimmanci domin **baddadi, aiki na baje-baje na aika saƙo shine karkarai na mahimmanci a cikin gida masu karfi, juriya** kuma waɗannan aiki ne na AWS na mahimmanci, don haka yana da mahimmanci sanin kuɗi don gida na kumolomi. **SQS** (jere na saƙo) yana ba da damar tsarin mahimmanci: **baddadi sassan** saboda mai saida ba ya dogara ko jira mai karama — mai sida yana aika saƙo zuwa jere, kuma mai karama yana aiki ta musu saurin saurin, wanda **yana wajen nauyi** (jere yana sauran takin iska yayin dan da mai karama yana aiki sanaye), yana ba da **iko** (saƙo yana zama haruf sai an aike, da hawaɗe da jere na mutuwar bakin kaɗa don gazarwa), kuma yana ba da damar **katse-katse** (ƙari mai karama don aiki mai sauri).

Haka yana da mahimmanci ga aiki na baje-baje na gaske, baddadi aiki, da kuɗi na jera da kyau. **SNS** (pub/sub) yana ba da damar **ɗaya-zuwa-da-yawa na yaɗa saƙo** — bugi saƙo zuwa jaji wanda ya yaɗa zuwa masu rubutu da yawa (jere, Lambda aiki, tsari, imel/SMS) — aiki ne don saƙo da yaɗa abubuwan jiha zuwa mai karama da yawa.

Jinyin tsarin ƙarfi **fan-out** (haɗa SNS da SQS saboda abubuwan jiha guda ake ƙi abubuwan aiki da yawa ta SNS yaɗa zuwa jere na SQS da yawa) nuna gida na mahimmanci, mahimmanci don abubuwan jiha.

Aikine da tsarukan nan sune tushe na gida **rashin zama tsakanin sassa, katse-katse, juriya** - karkarai na mahimmanci na gida masu kyau na kumolomi (kaido zama tsakanin sassa da hayin sauri da ake wajen abinci da matarfin sautin muhimmanci).

Kadonan baddadi aiki na baje-baje saƙi shine tushe ga abubuwa masu katse-katse, juriya kuma SQS/SNS aiki ne na AWS na tushe ga haka (tare da tsarin fan-out zama gida na mahimmanci), jinyin SQS da SNS yana da mahimmanci, aiki ne na AWS na mahimmanci don sadaukar gida masu gida kyau na kumolomi - tushe na mahimmanci don baddadi, abubuwan jiha, aiki na baje-baje tsarukan da ake kira abubuwa masu catsan taji katse-katse da juriya.