EC2 vs Lambda: Edhu Eppo Use Pannanum? Real Example Oda Simple Guide (Tanglish)
EC2 vs Lambda confusion-a? Indha Tanglish guide-la rendukkum ulla difference-a simple-a purinjukkalaam. Cost, control, scaling compare panni, online shop real example-oda edhu eppo use pannanum nu paapom.
Introduction
AWS-la start pannum bodhu oru question seekiram varum: en code-a EC2-la run pannanuma, illa Lambda-la run pannanuma?
Rendume code-a run pannum, aana velai seiyura vidham romba vera. Simple-a Tanglish-la paapom.
EC2 na enna?
Amazon EC2 unga-ku oru virtual server tharum. Operating system, size, enna install pannanum nu ellam neenga dhaan decide pannuveenga. Neenga stop pannura varaikkum server run aagitte irukkum.
Idha car rent-ku edukkura mathiri nenaichukonga. Car unga kaiyila irukku, ethu venumnaalum pannalam. Aana car veliya nikkum bodhu kooda rent kodukkanum.
Lambda na enna?
AWS Lambda-la unga code, ethavadhu oru event nadandha mattum run aagum. Example: API request, file upload, schedule. Server pathi neenga kavalaye pada vendaam.
Idha auto / taxi pudikkura mathiri nenaichukonga. Evlo dhooram poneengalo, avlo mattum paisa. Car-a maintain panna vendaam.
Rendukkum ulla difference
| EC2 | Lambda | |
|---|---|---|
| Yaaru manage pannanum | Server, OS, updates ellam neenga | Unga code mattum |
| Eppo run aagum | Stop pannura varaikkum continuous-a | Trigger aanaa mattum |
| Billing | Instance run aagura neramukku | Request count + run time-ku |
| Scaling | Auto Scaling neenga set pannanum | Automatic-a scale aagum |
| Oru velai run time | Limit illai | Maximum run time limit irukku (current limit-a check pannikonga) |
| Control | Full control | Konjam kammi control |
| Edhukku nalladhu | Neenda neram odura, custom apps | Chinna, event-based velaigal |
Real-time example: Online cloth shop
Unga kitta oru online cloth shop irukku nu vachukkonga. Dhinam niraiya customers varuvaanga. Shop-oda vera vera parts-ku vera vera service nalla fit aagum.
1. Main website backend: EC2
Website 24 hours-um run aaganum. Customer eppo vandhaalum open aaganum.
Idhu continuous-a run aagurathunaala EC2 sariyaana choice. Server-a neenga control pannalam, venumna software install pannalam.
2. Order panna udane email anuppanum: Lambda
Customer oru order panraanga, udane "Order received" email poganum.
Idhu chinna velai, order varum bodhu mattum nadakkum. Dhinam 24 hours server odanum nu avasiyam illai. So Lambda sari. Order vandha mattum code run aagum, mudinjadum stop aagidum.
3. Product photo resize: Lambda
Seller oru photo upload pannuraanga. Andha photo-va small size-ku maathanum.
Photo vandha mattum run aaganum, so Lambda nalla fit.
4. Dhinam raathri sales report: Lambda (scheduled)
Dhinam raathri 12 manikku sales report thayaar pannanum. Naal-la oru thadavai mattum velai.
Idhukku EC2 vechaa, naal muzhukka server-ku paisa kodukkanum, aana velai konjam neram dhaan. So scheduled Lambda better.
5. Periya video processing: EC2
Periya video-va process pannanum, adhu neenda neram edukkum, niraiya CPU-um thevai.
Idhukku EC2 dhaan sari, because Lambda-ku run time limit irukku.
Summary table
| Shop-la velai | Better choice | Yen |
|---|---|---|
| Main website backend | EC2 | Eppavum run aaganum |
| Order email anuppuradhu | Lambda | Chinna velai, event vandha mattum |
| Photo resize | Lambda | Photo vandha mattum |
| Dhinam report | Lambda | Naal-la oru thadavai |
| Periya video processing | EC2 | Neenda neram, niraiya power |
| Special software install pannanum | EC2 | Server-ah full control venum |
Niraiya real companies rendaiyum serthu use pannuvaanga. Main app EC2-la, chinna chinna velaigal Lambda-la.
EC2 yeppo choose pannanum?
- App eppavum run aaganum, traffic konjam steady-a irukkum
- OS, software mela full control venum
- Velai neenda neram nadakkum
- GPU maathiri special hardware thevai
Lambda yeppo choose pannanum?
- Velai event-based (file upload, API call, schedule)
- Traffic epo varum nu theriyadhu, illa romba kammi
- Server manage panna vendaam
- Seekiram start pannanum, chinna workload-ku cost kammi-a irukkanum
Simple Lambda example
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def lambda_handler(event, context):
name = event.get("name", "friend")
return {
"statusCode": 200,
"body": f"Hello, {name}! Unga order received."
}Lambda console-la idha create pannunga, Test click pannunga, output paakalaam. Server setup panna thevai illai.
Cost patthi
- EC2: instance run aagitte irundhaa paisa pogum, yaarum use pannalena kooda. Use pannala na stop / terminate pannidunga.
- Lambda: request-ku, run time-ku mattum paisa. Free Tier-la konjam free usage irukkum. Exact amount-ku AWS pricing page-a paarunga.
- Chinna, adikkadi nadakkura velai-ku Lambda-vae cheap-a irukkum. Busy-a, steady-a odura workload-ku EC2 cheap-a irukkalaam. Unga case-ku AWS Pricing Calculator-la compare pannikonga.
Common mistakes
- Dhinam oru thadavai nadakkura chinna velai-ku EC2 use pannuradhu
- Romba neenda neram odura job-ku Lambda use pannuradhu
- Use pannadha EC2 instances-a stop pannama marandhuduradhu
- Lambda / EC2-ku thevaikku mela permissions kudukkuradhu (least-privilege IAM role use pannunga)
Seekiram mudivu edukka guide
- Chinna velai, event vandha run aaganum na: Lambda
- Eppavum run aaganum, full control venum na: EC2
- Theriyala na: Lambda-la start pannunga, limit vandha EC2-ku maaralaam
Oru line-la
EC2 = rent car (full control, continuous). Lambda = taxi (velai irukkum bodhu mattum paisa).
Key takeaways
- EC2 na neenga control pannura server, Lambda na thevai-ku run aagura code
- Lambda chinna, event-based velaikku. EC2 steady, custom workloads-ku
- Niraiya applications rendaiyum serthu use pannum
- Eppavum budget set pannunga, use pannadha resources-a delete pannunga
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