Service Broker Conversations

Colleen Morrow goes into conversations in the context of Service Broker:

Like real-life conversations, Service Broker conversations are a reliable-bidirectional stream of messages exchanged between two participating services.  A Service Broker conversation can be short-lived, a simple exchange of 2 messages, or it can span days, weeks, even years.  There are two key elements of a Service Broker conversation that are important to note, however.  The first is that messages are guaranteed to be delivered in order, and only once.  Service Broker uses sequencing and acknowledgement mechanisms to ensure this.  The second key is that conversations are persistent.  Persistent across network interruptions.  Across server restarts.  In fact, conversations persist until they are explicitly ended.

In the world of Service Broker, you’ll sometimes see the term “conversation” used.  Sometimes it’s “dialog”.  Sometimes it’s even “dialog conversation”.  Although “conversation” and “dialog” are distinct concepts in the greater world of messaging services, in the context of Service Broker they are interchangeable.

We’re getting close to seeing Service Broker in action here, so stay tuned.

Related Posts

Service Broker Security

Colleen Morrow is back with a new item in her Service Broker series, this time on securing Service Broker implementations: There are 2 types of security in Service Broker: dialog and transport. Dialog security establishes a secure, authenticated connection between Service Broker Services or dialog endpoints. Transport security establishes an authenticated network connection between SQL […]

Read More

Using Service Broker To Queue Up External Script Calls

Arvind Shyamsundar shows how to use Service Broker to run external R or Python scripts based on new data coming into a transactional system: Here, we will show you how you can use the asynchronous execution mechanism offered by SQL Server Service Broker to ‘queue’ up data inside SQL Server which can then be asynchronously passed to […]

Read More

Categories

April 2016
MTWTFSS
« Mar May »
 123
45678910
11121314151617
18192021222324
252627282930