INFRASTRUCTURE IN LINE Yoshihiro Saegusa 

• Now responsible for infrastructure platform (private cloud) • Joined NHN Japan in April 2005 as a network engineer • Was responsible for networks and data centers until June 2017 ABOUT ME Yoshihiro Saegusa 

LINE SERVICE ARCHITECTURE Redis HBase Gateway Talkserver Object 
 Storage Image, File, Video VoIP BOT 

LINE SERVICE ARCHITECTURE Redis HBase Talkserver Object 
 Storage Image, File, Video VoIP BOT Japan,Taiwan Users Southeast Asia Users North America Users Gateway Gateway Gateway 

LINE INFRASTRUCTURE Internet Datacenter Datacenter Server Datacenter Network Datacenter Interconnect Rack Cable Load Balancer Router 

LINE INFRASTRUCTURE Scale • 1Tbps+ User Traffic • 40,000+ Servers • Multiple datacenters
 in 5+ countries 

Basic Requirements LINE INFRASTRUCTURE • Provide extremely high-capacity network • Build horizontally scalable architecture • Significantly reduce operational cost 

WHAT WE ARE WORKING ON Private Cloud Data center Server (H/W) Network (H/W) Bare metal VM Operating system Data store Infrastructure platform API, WebUI Product Team A Product Team B Product Team C Dev Teams Infrastructure Teams 

WHAT WE ARE WORKING ON Multi-tenancy SRv6 underlay Tenant A Tenant B Tenant C FinTech business 

GW API Project A Project B Project C WHAT WE ARE WORKING ON Kubernetes Platform (Kubernetes as a service) 

WHAT WE ARE WORKING ON Kubernetes Platform (Event Handler) log: ****** Every hour VM created Events Send notification Run test Deploy app Actions Event sources Function executor Functions 

TODAY’S SESSION • LINEͷPrivate Cloud • LINEͷωοτϫʔΫ • ίϯςφωοτϫʔΩϯά 

WE ARE HIRING Tokyo Kyoto Fukuoka ৽ଔ த్ Πϯλʔϯ https://linecorp.com/ja/career/ja/all https://linecorp.com/ja/career/position/1215 https://linecorp.com/ja/career/newgrads/engineer 

THANK YOU