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Building next generation enterprise application using Servic
Transcript of Building next generation enterprise application using Servic
Fallacies of Distributed Computing
The network is reliable.
Latency is zero.
Bandwidth is infinite.
The network is secure.
Topology doesn't change.
There is one administrator.
Transport cost is zero.
The network is homogeneous.
What is a Bus ?
Adopting Bus based Architecture
Publish/Subscribe for Events
Difference between Bus and Broker
Broker - hub/spoke
What will you learn in this session ?
Architecture and Jargon's behind Service Bus
Reasons to choose Service Bus
Patterns of the Bus Architecture
Cost of using Service Bus
You, Me & this Talk
Part of the DS Front Office Edge team.
I am a seasoned developer with most experience in .Net and Microsoft technologies.
My recent interests include Parallel & Distributed systems and Optimal Alogorithms
Reach me here
My Blog - http://shanky.azurewebsites.net/
How many of you made a Remote Procedure call ?
Did you experience this?
I Paid for the ticket online. But I dint get the ticket
How many of you fought with the system admins ?
Have you measured latency between 2 data centers
How many times you have missed a configuration change ?
Any time victim of hacking?
Google - G-mail outage caused by dual network failure
Microsoft - "The service interruption was triggered by a misconfigured network device that disrupted traffic to one cluster in our West Europe sub-region."
GoDaddy - "It was not a 'hack' and it was not a denial of service attack (DDoS). We have determined the service outage was due to a series of internal network events that corrupted router data tables."
Do you know that
Building N-Gen Applications using Service Bus
Levels of Message guarantee
At least once
Standards & Protocols
Advanced Message Queuing Protocol (AMQP)
Streaming Text Oriented Messaging Protocol (STOMP)
Microsoft Message Queuing (MSMQ)
Other Forces which lead to ESB
Communication between applications usually creates coupling between them.
In a point-to-point connectivity, the coupling has a quadratic growth. This quadratic growth hampers maintainability, modifiability, and integrability.
Changing the interfaces of proprietary applications is difficult.
Legacy applications don't want to change
A set of agreed-upon message schema's
A shared infrastructure for sending bus messages to recipients
What do you Need ?
Things to consider before using Messaging
A Typical ESB structure
It depends on who is accountable
in a Bus, publisher of the event is accountable
“single publishing endpoint per event-type”
in a Broker, subscriber is accountable
Service Bus is not a Silver Bullet.
Is your business ready for eventual concurrency
Increased complexity - arch change
Contract changes impact everyone. ready?
Is broadcast allowed ?
IBM WebSphere ESB
Microsoft BizTalk Server
Oracle Enterprise Service Bus
Azure Service Bus
The list is too big.Please go to Wikipedia
for any questions