Menene bambanci tsakanin ayyukan da suke da jiya da waɗanda ba su da jiya?

Question

Accepted Answer

**Ayyukan ba su da jiya** ba sa ajiye jiya na abokin ciniki tsakanin bukatun (kowane bukatun ya kasance mai zaman kansa), yayin da **ayyukan da suke da jiya** suke kula da jiya. Rashin jiya yana da mahimmanci don ƙimar ma'aunin aiki — ayyukan ba su da jiya sune wahaya sosai a halin gida.

## Ayyukan ba su da jiya da waɗanda suke da jiya

```text
STATELESS → the service keeps NO client state between requests:
  → each request contains all needed info; any server can handle any request
  → state lives ELSEWHERE (database, cache, client, token) if needed
STATEFUL → the service MAINTAINS state across requests:
  → a specific server holds a client's state (session in memory, etc.)
  → requests must go to the SAME server (or state must be shared/synchronized)
```

## Yadda rashin jiya ke taimakon ƙimar ma'aunin aiki

```text
STATELESS services scale horizontally EASILY:
  → any server handles any request → load balancing is simple (any server works)
  → add/remove servers freely; a failed server doesn't lose state → resilient
  → no sticky sessions or state synchronization needed
STATEFUL services are HARDER to scale:
  → requests tied to specific servers (sticky sessions); a server failure loses its state;
    scaling needs state sharing/replication → complexity
→ PREFER STATELESS services for scalability (a key design principle).
```

## Gudanar da jiya a cikin ƙira tilo ba su da jiya

```text
→ Store state EXTERNALLY where servers can share it:
  → SESSION/data in a shared store (Redis, database) → any server reads it
  → state in the CLIENT (e.g. JWT tokens carry auth state)
  → keep services stateless; externalize state → scalable AND maintains needed state
```

## Menene mahimmancin haka

Ganewa bambancin tsakanin ayyukan da suke da jiya da waɗanda ba su da jiya yana da asali domin **rashin jiya ya zama babbar ƙaidodin gina tsarin da za a iya cewa ake buƙata**, don haka yana da mahimmanci ilimin tsarin ƙira.

Bambancin — **ayyukan ba su da jiya** ba sa ajiye jiya na abokin ciniki tsakanin bukatun (kowane bukatun mai zaman kansa, kowane sabar kin gudanar da kowane bukatun) a sakai **ayyukan da suke da jiya** suke kula da jiya (daɗi ga sabbobi masu yawa ta hanyar cumulative sessions) — yana da asali ga yadda ayyuka suke ma'aunin aiki.

Ganewa **yadda rashin jiya ke taimakon ƙimar ma'aunin aiki** yana da mahimmanci da gaske: ayyukan ba su da jiya suna iya ma'aunin aiki a halin gida cikin sauƙi domin **kowane sabar kin gudanar da kowane bukatun** (a halin tarawa mà sai a ita, da yadda ake iya sarar sabbobi ko kuma cire su, kuma sunantar sabar ba ta watse jiya — karfin tsaro), yayin da ayyukan da suke da jiya sune wahaya sosai ga ma'aunin aiki (bukatun daɗi ga sabbobi na musamman ta hanyar sticky sessions, sunantar sabar watse jiya, ma'aunin aiki buƙata daidaitacciyar raba jiya).

Wanan yana sa **karɓar ayyukan ba su da jiya ya zama babbar ƙaidodin ƙira** don ƙimar ma'aunin aiki — yana zama ɗaya daga cikin waɗannan mahimmancin aiki a cikin ƙira na tsarin da za a iya cewa ake buƙata.

Ganewa yadda za a **gudanar da jiya a cikin ƙira tilo ba su da jiya** — adana jiya ta waje inda sabbobi za su iya raba ta (jiya ta zaman nan a wajin ajiyar jiya kamar Redis, ko jiya a gida na abokin ciniki kamar JWTs) don sabar koma su kasance ba su da jiya yayin da suke kula da jiya da ake buƙata — yana da mahimmanci fasali da ke daidaitawa ba tsakanin rashin jiya da ayyuka da ke buƙata jiya.

Wanan yana haɗa da ma'aunin aiki a halin gida da ma'aunin bukatun (wadanda suke aiki mafi kyau tare da ayyukan ba su da jiya).

Tun da rashin jiya yana da mahimmancin baiwa wa ma'aunin aiki a halin gida (hanyar babbar tsara don tsarin babbar ƙima) kuma ganewa bambancin stateless/stateful, menene ya sa rashin jiya ke taimakon ma'aunin aiki, kuma yadda za a bukaci jiya yana da asali ga ƙira na tsarin da za a iya cewa ake buƙata, ganewa ayyukan da suke da jiya da waɗanda ba su da jiya yana da mahimmanci, asali ilimin ƙira na tsarin — babbar ƙaidodin ƙimar ma'aunin aiki (rashin jiya bayarwa ga sauƙin ma'aunin aiki a halin gida), haɗa da ma'aunin bukatun kuma ma'aunin aiki a halin gida, kuma musamman ne wajen ƙira na tsarin da za a iya cewa ake buƙata, mahimmancin mahimmanci da ke ƙarƙara da tsarin ƙira da za a iya cewa ake buƙata.