the current messaging landscape
TRANSCRIPT
Messaging
Events Everywhere
We’ll talk about:• nyt aбrik (my project)⨍• Messaging• Messaging Open Source
Software• Use cases (Events/Demo)
A Global Mesh with a Memory
Millions of users
Dozens ofinternal clients
1988:(Harvard)
30,000
2020:(Global) 50,000,000,000
We’ll talk about:• nyt aбrik (my project)⨍• Messaging• Messaging Open Source
Software• Use cases (Events/Demo)
Messaging:
• What is it?• Why should I care?
Message
Event
Metric
Header
Body
Why should I care? Decoupling
by wmasterj and Fabrice TIERCELIN - Wikipedia
Why should I care? Decoupling
How does this happen?• Asynchronous interaction
A BMessages
Instances
Processes
Functions
AsyncScope
Time
P C
Idle
Idle
Idle
sync
async
Time
P C CP
Idle
Idle
Idle
Idle
sync vslatency
We’ll talk about:• nyt aбrik (my project)⨍• Messaging• Messaging Open Source
Software• Use cases (Events/Demo)
Broker
LAN
WAN
: + flexibility
LAN/WAN
DatabaseSemanticsFor access
:
+ scalability
GW GW …GW GW GW …GW
Region A Region B …
GW
Push Pullsnd rcv
µSvc …
: + IoT
2020:(Global) 50,000,000,000
:Written in C
+ IoT
GW
Push Pullsnd rcv
µSvc …∅mq
: + very fast∅mq
GW
Push Pull snd rcv
µSvc …NSQ
: + fastNSQ
GW
Push Pullsnd rcv
µSvc …NSQ
What if…
GW GW …GW GW GW …GW
Region A Region B …
Then:
… …
Region A Region B …
GW GW GW GW GW GW
Becomes:
: + offsets
We’ll talk about:• nyt aбrik (my project)⨍• Messaging• Messaging OSS• Use cases (what about
Events & Demo? Hang on…)
: + flexibility
: + very fast∅mq
: + fastNSQ
: + IoT
: + offsets
“Mobile is about moments, shorter and more fragmented. It’s important we string these together,” said Paul Muret, the vice president for display, video and analytics at Google.
“We need to understand the desires of consumers in each point in time to understand their context and intent.”
Events
2020:(Global) 50,000,000,000
Observations• SQL considered harmful for global
online distributed systems• Web is dead• Mobile is maturing• The excitement: Things & Events
Event Sourcing
…a design pattern that captures all changes to an application's state as a sequence of events…
Event Sourcing
…synchronizes in distributed systems around the concept of optimistic concurrency…
Use Case: XWORDCharacteristics• Multi-user• Distributed
Globally• Clients can
disconnect
Implementation• Message Bus• NoSQL
