Releases · Particular/NServiceBus

In order to provide the same level of consistency as users that are running with DTC transactions enabled we should introduce a mode of operations that provides those same guarantees without requiring a DTC compliant transport and storage.

The following is the high-level design

When a message is pulled from the Q

if IncomingMessage.MessageId exists in the outbox
- no: Record all actions (keep them inmemorybatch them to storage at end of "inner" transaction)
  * Note that message id will be generated here and kept stable
- yes: dispatch all message actions (since this is a retry) but don't invoke user code

Content trimmed. See full issue

Improvements

#2330 Provide saga type name when logging a SagaNotFound message

#2328 Introduce ISendOnlyBus

To simplify the api by not exposing IBus methods not relevant for a sendonly bus

#2327 Introduce Bus.Create(new BusConfiguration())

#2288 Move IConfigureThisEndpoint out of the core

#2282 Container.RegisterSingleton should take an instance of T not an object

#2261 Moved Roles into the Host

The extension points IConfigureRole, IConfigureRole<T> and IRole no longer exist.

AsA_Client and AsA_Server can still be used.

AsA_Publisher has been deprecated and should be replaced with AsA_Server

#2244 Remove Bus.CreateInstance

So where previously this was used

Bus.Publish(Bus.CreateInstance<OrderCancelled>(o =>
    {
        o.OrderNumber = message.OrderNumber;
        o.ClientId = message.ClientId;
    }));

Now this is used

Bus.Publish<OrderCancelled>(o =>
    {
        o.OrderNumber = message.OrderNumber;
        o.ClientId = message.ClientId;
    });

#2229 Improve error reporting in TimeoutPersisterReceiver

When the timeout persister logs a warning about a failure it will now include the exception in the log entry

#2168 Remove UnicastBus.Start(Action)

The Action parameter overload of UnicastBus.Start(Action)` has been removed

#2167 Remove ForInstallationOn, Windows and IEnvironment

This was an overly complex approach to running installers. As such it has been simplified

#2137 Make ConfigureHowToFindSaga abstract

Too many people forget to override this method. As such it will now be abstract.

#2136 Remove empty constructor requirement from Saga

by using FormatterServices.GetUninitializedObject

#2113 Merge the Core

The NSB interfaces dll was created to allow people to have a smaller dependency when creating a messages assembly. With the introduction of unobtrusive messages that is no longer required. As such NServiceBus.dll will be merged into NServiceBus.Core.dll. Also the NServiceBus.Interfaces nuget will be deprecated.

#2105 Change IMessageSerializer.Serialize to take a single message

In version 5 multi-message sends is being removed. So serialization of an array of messages is no longer required.

Note that deserialization to an array is still required for backwards compatibility with earlier versions of NSB

#2104 Obsolete SerializationSettings WrapSingleMessages and DontWrapSingleMessages

In version 5 multi-message sends is being removed. So Wrapping messages is no longer required. It only remains for compatibility with 3.0 endpoints

#2102 Standardise extension methods to configure persistences

#2097 Remove UnicastBus.NoSubscribersForMessage event

#2095 replace ISaga with non generic base class "Saga"

ISaga looks like an extension point. But in reality it is an internal concern which allows the framework to gain access to a non-generic version of the sagadata. See #1762

So ISaga (#1762) and ISaga<T> (#1765) were obsoleted

The replacement for the is a non-generic base class Saga. This class is a legitimating extension point, although most scenarios would still use Saga<T>. All functionality of Saga<T> will be pushed up to Saga. Saga<T> will now inherit from Saga.

#2093 remove MessageIntentEnum.Init

#2091 remove IPersistSagas

Not used for anything.

#2090 Remove IConfigurable interface on Saga

With the removal of ISaga and ISaga<T> the IConfigurable interface is redundant.

#2088 Remove Bus.Subscribe Predicate overloads

Since the Predicate is executed at the subscriber side it is not efficient. Also this is a confusing API since
consumer often, incorrectly, believe it is publisher side filtering. Instead create a Handler that does this
filtering logic and then, optionally, calls DoNotContinueDispatchingCurrentMessageToHandlers. This
Handler should be ordered to run before other handlers.

related to #1546

#2084 InMemory transport removal

#2082 Remove this.Bus() extension method for IHandleMessages implementations

#2081 Remove impersonation

#2078 Move to .net 4.5

The reasons for doing this are as follows

Allows some better optimization in the core via the use of new APIs provided in 4.5
Some of our Satellite dependencies are already moving 4.5. For example Unity
4.5 was release in mid 2012 so it has been out for reasonable amount of time
Less testing surface area
Also allows us to take advantages of the other various improvements in 4.5 http://msdn.microsoft.com/en-us/library/ms171868(v=vs.110).aspx#core

What this means for consumers

The new minimum Visual Studio version will be Visual Studio 2012
The new minimum server OS will be 2008
The new minimum desktop OS will be Vista SP2
All assemblies (and nugets) that depend on the core will be upgraded to 4.5

Note the earlier versions of NServiceBus will still be compatible and supported for .net 4

For more information on .net 4.5 see

.NET Framework 4.5 – Core New Features and Improvements http://msdn.microsoft.com/en-us/library/ms171868(v=vs.110).aspx#core
.NET Framework System Requirements http://msdn.microsoft.com/en-us/library/8z6watww%28v=vs.110%29.aspx

#2070 better handling of missing Feature.Enable

so if a user forgets to have this line Feature.Enable<Sagas>(); but still has a saga no guidance is given as to why that saga is not executed

In fact there is misinformation

Could not find a saga for the message type "Message1". Going to invoke SagaNotFoundHandlers.

#1989 Performance is slow while debugger is attached

#1863 Set DoNotWrapHandlersExecutionInATransactionScope automatically when Disabling transactions

When you call Disable on transactions, your call is still wrapped in a transactionscope

So to get rid of all transactional behavior you need to do both

Configure.Transactions.Advanced(a => a.DoNotWrapHandlersExecutionInATransactionScope());
Configure.Transactions.Disable();

Would be better to remove the scope automatically

#1857 ReturnToSourceQueue error message incorrectly formatted

Fix the incorrect message:

No message found with ID 'NServiceBus.MessageId'. Going to check headers of all messages for one with 'NServiceBus.MessageId' or 'NServiceBus.CorrelationId'.

[#1791 Remove DelegateFactory](https:/...

Assets 2

10 Sep 00:53

indualagarsamy

4.6.5

1f7b020

4.6.5

As part of this release we had 16 commits which resulted in 2 issues being closed.

Bugs

#2353 Timeouts and deferred messages are delivered to local queue, not clustered queue

In NServiceBus 4.6.3, in a clustered distributor setup, timeouts and deferred messages are delivered to local queue on workers and not to clustered queue.

Timeout messages and deferred messages are delivered directly to a specific local queue (on the server which requested the timeout/deferring) and not to the clustered queue. This bypasses the regular path which involves removing a message from the storage queue and deliver the destination queue on the worker. The worker does not know this and reports back that it is ready to handle a new message after handling the timeout message, which causes the storage queue to grow.

See question on StackOverflow for more information

#2072 NRE when sending a message that has no routing

When an endpoint tries to send a message and if no routing information has been specified in the configuration, then the endpoint throws an unfriendly exception.

Where to get it

You can download this release from nuget

Assets 2

Releases: Particular/NServiceBus

4.5.4

Bugs

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4.4.5

Bugs

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4.3.7

Bugs

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4.2.4

Bugs

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4.1.5

Bugs

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4.0.8

Bugs

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3.3.12

Bugs

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4.6.6

Bugs

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5.0.0

Upgrade Guide from v4 to v5

Features

When a message is pulled from the Q

Improvements

[#1791 Remove DelegateFactory](https:/...

4.6.5

Bugs

Where to get it