Shared by ThanhNT @UBus-TimXeKhach - GRD

Lessons from building server side services of large-scale

applications

Problems C10k, 100k, 1M Problems Big-data challenges:

Storage Problems: Volume, Velocity Data mining Problems : Veracity, Value

When you need to care

Early stage of startup : Not very important (fail fast)

When your startup growing: large number of users, transactions, etc.

Stuck when too many connections / server hangout

REAL LESSONSDB problems: NoSQL saved us C10K Problems: Nonblocking IO

Zing Me 2010: NTVV2, 2011, Happy City (Clone Flash of City Ville) 4M users/days, and now UBus-Tìm Xe Khách, Zalo

●Using opensources: Cassandra, Memcached, CouchBase, Redis.

●Build your own (after you understand how and you are truly interested)

●Must benchmark, load-test carefully before go production. Don't just believe in the show numbers

What to care about?

Quality of Service requirements (vs maximum 100ms processing per request) of your application.

Storage Model: In-memory / Persistent/ Hybrid ;Number of disk-seek per operation? (Complexity)

How to scale? Scaling Model (up vs out)

What is the state of your company? Early startup / ready for large use-bases …

Conclusions

Time is too short to share details ;) We can discuss more later: fb.com/trungthanh

PS: UBus-Tìm Xe Khách using 100% NoSQL.fb.com/timxekhach timxekhach.com

About Me

● Head of Research & development at VNG