MQ queue connection factory settings:

MQ queue connection factory settings

Panel for changing the properties of a queue connection factory for use with the MQ JMS provider. These configuration properties control how connections are created to the associated JMS queue destination.
A queue connection factory is used to create JMS connections to queue destinations. The queue connection factory is created by the MQ JMS provider. A queue connection factory for the MQ JMS provider has the following properties.
Note:

The property values that you specify must match the values that you specified when configuring MQ for JMS resources. For more information about configuring MQ JMS resources, see the MQ Using Java book. and the MQ System Administration book, SC33-1873, which are available from the MQ messaging platform-specific books Web page at

http://www-3.ibm.com/software/ts/mqseries/library/manualsa/manuals/platspecific.html , the

IBM Publications Center , or from the MQ collection kit, SK2T-0730.
In MQ, names can have a maximum of 48 characters, with the exception of channels which have a maximum of 20 characters.

Resources-> MQ JMS Provider-> (In content pane, under Additional Properties) MQ Queue Connection Factories-> connection_factory

Name

The name by which this queue connection factory is known for administrative purposes within IBM WebSphere Application Server. The name must be unique within the JMS connection factories across the WebSphere administrative domain.

Data type String

JNDI name

The JNDI name that is used to bind the connection factory into the appserver's name space.
As a convention, use the fully qualified JNDI name; for example, in the form jms/Name, where Name is the logical name of the resource.
This name is used to link the platform binding information. The binding associates the resources defined by the deployment descriptor of the module to the actual (physical) resources bound into JNDI by the platform.

Data type String

Description

A description of this connection factory for administrative purposes within IBM WebSphere Application Server.

Data type String
Default Null

Category

A category used to classify or group this connection factory, for your IBM WebSphere Application Server administrative records.

Data type String

Component-managed Authentication Alias

This alias specifies a user ID and password to be used to authenticate connection to a JMS provider for application-managed authentication.
This property provides a list of the J2C authentication data entry aliases that have been defined to WebSphere Application Server. One can select a data entry alias to be used to authenticate the creation of a new connection to the JMS provider.
If you have enabled global security for WebSphere Application Server, select the alias that specifies the user ID and password used to authenticate the creation of a new connection to the JMS provider. The use of this alias depends on the resource authentication (res-auth) setting declared in the connection factory resource reference of an application component's deployment descriptors.
Note: User IDs longer than 12 characters cannot be used for authentication with the embedded WebSphere JMS provider. For example, the default Windows NT user ID, Administrator, is not valid for use with embedded WebSphere messaging, because it contains 13 characters. Therefore, an authentication alias for a WebSphere JMS provider connection factory must specify a user ID no longer than 12 characters.

Container-managed Authentication Alias

This alias specifies a user ID and password to be used to authenticate connection to a JMS provider for container-managed authentication.
This property provides a list of the J2C authentication data entry aliases that have been defined to WebSphere Application Server. One can select a data entry alias to be used to authenticate the creation of a new connection to the JMS provider.
If you have enabled global security for WebSphere Application Server, select the alias that specifies the user ID and password used to authenticate the creation of a new connection to the JMS provider. The use of this alias depends on the resource authentication (res-auth) setting declared in the connection factory resource reference of an application component's deployment descriptors.
Note: User IDs longer than 12 characters cannot be used for authentication with the embedded WebSphere JMS provider. For example, the default Windows NT user ID, Administrator, is not valid for use with embedded WebSphere messaging, because it contains 13 characters. Therefore, an authentication alias for a WebSphere JMS provider connection factory must specify a user ID no longer than 12 characters.

Queue manager

The name of the MQ queue manager for this connection factory. Connections created by this factory connect to that queue manager.

Data type String
Default Null
Range A valid MQ queue manager name, as 1 through 48 ASCII characters

Host

The name of the host on which the MQ queue manager runs, for client connection only.

Data type String
Default Null
Range A valid TCP/IP hostname

Port

The TCP/IP port number used for connection to the MQ queue manager, for client connection only.
This port must be configured on the MQ queue manager.

Data type Integer
Default Null
Range A valid TCP/IP port number, configured on the MQ queue manager.

Channel

The name of the channel used for connection to the MQ queue manager, for client connection only.

Data type String
Default Null
Range 1 through 20 ASCII characters

Transport type

Specifies whether the WebSphere MQ client connection or JNI bindings are used for connection to the WebSphere MQ queue manager. The external JMS provider controls the communication protocols between JMS clients and JMS servers. Tune the transport type when you are using non-ASF nonpersistent, nondurable, nontransactional messaging or when you want to satisfy security issues and the client is local to the queue manager node.
Data type Enum
Units Not applicable
Default BINDINGS
Range

BINDINGS

JNI bindings are used to connect to the queue manager. BINDINGS is a shared memory protocol and can only be used when the queue manager is on the same node as the JMS client and comes at some security risks that should be addressed through the use of EJB roles.

CLIENT

WebSphere MQ client connection is used to connect to the queue manager. CLIENT is a typical TCP-based protocol.

DIRECT

For WebSphere MQ Event Broker using DIRECT mode. DIRECT is a lightweight sockets protocol used in nontransactional, nondurable and nonpersistent Publish/Subscribe messasging. DIRECT is only works for clients and message-driven beans using the non-ASF protocol.

QUEUED

QUEUED is a standard TCP protocol.

Recommended

Queue connection factory transport type

BINDINGS is faster by 30% or more, but it lacks security. When you have security concerns, BINDINGS is more desirable than CLIENT.

Topic connection factory transport type

DIRECT is the fastest and should be used where possible. Use BINDINGS when you want to satisfy additional security tasks and the queue manager is local to the JMS client. QUEUED is fallback for all other cases. Note, MQ 5.3 before CSD2 with the DIRECT setting can lose messages when used with message-driven beans and under load. This also happens with client-side based applications unless the broker's maxClientQueueSize is set to 0. One can set this to 0 with the command #wempschangeproperties WAS_nodeName_servername -e default -o DynamicSubscriptionEngine -n maxClientQueueSize -v 0 -x executionGroupUUID , where executionGroupUUID can be found by starting the broker and looking in the Event Log/Applications for event 2201. This value is usually ffffffff-0000-0000-000000000000.

Model queue definition

The name of the model queue definition that can be used by the queue manager to create temporary queues if a queue requested does not already exist.

Data type String
Default Null
Range 1 through 48 ASCII characters

Client ID

The JMS client identifier used for connections to the MQ queue manager.

Data type String
Default Null

CCSID

The coded character set identifier for use with the MQ queue manager.
This coded character set identifier (CCSID) must be one of the CCSIDs supported by MQ.

Data type String
Units Integer
Default Null
Range 1 through 65535

For more information about supported CCSIDs, and about converting between message data from one coded character set to another, see the MQ System Administration and the MQ Application Programming Reference books. These are available from the MQ messaging multiplatform and platform-specific books Web pages; for example, at

http://www-3.ibm.com/software/ts/mqseries/library/manualsa/manuals/platspecific.html , the

IBM Publications Center , or from the MQ collection kit, SK2T-0730.

Message retention

Select this tick box to specify that unwanted messages are to be left on the queue. Otherwise, unwanted messages are dealt with according to their disposition options.

Data type Enum
Units Not applicable
Default Cleared
Range

Selected

Unwanted messages are left on the queue.

Cleared

Unwanted messages are dealt with according to their disposition options.

XA Enabled

Specifies whether the connection factory is for XA or non-XA coordination of messages and controls if the application server uses XA QCF/TCF. Enable XA if multiple resources are not used in the same transaction.
If you set this property to NON_XA , the JMS session is still enlisted in a transaction, but uses the resource manager local transaction calls (session.commit and session.rollback) instead of XA calls. This can lead to an improvement in performance. However, this means that only a single resource can be enlisted in a transaction in WebSphere Application Server. In WebSphere Application Server Enterprise the last participant support enables you to enlist one non-XA resource with other XA-capable resources.
For a WebSphere Topic Connection Factory with the Port property set to DIRECT this property does not apply, and always takes the value NON_XA .
Data type Enum
Units Not applicable
Default XA enabled
Range

XA

The connection factory is for XA-coordination of messages

NON_XA

The connection factory is for non-XA coordination of messages
Recommended Do not enable XA when the message queue or topic received is the only resource in the transaction. Enable XA when other resources, including other queues or topics, are involved.

Connection pool

Specifies an optional set of connection pool settings.
Connection pool properties are common to all J2C connectors.
The appserver pools connections and sessions with the JMS provider to improve performance. This is independent from any MQ connection pooling. You need to configure the connection and session pool properties appropriately for your applications, otherwise you may not get the connection and session behavior that you want.
Change the size of the connection pool if concurrent server-side access to the JMS resource exceeds the default value.The size of the connection pool is set on a per queue or topic basis. See the following table for details.

Session pool

An optional set of session pool settings.
This link provides a panel of optional connection pool properties, common to all J2C connectors.
The appserver pools connections and sessions with the JMS provider to improve performance. This is independent from any MQ connection pooling. You need to configure the connection and session pool properties appropriately for your applications, otherwise you may not get the connection and session behavior that you want.

Configure a queue connection factory, MQ JMS provider
Managing J2EE Connector Architecture authentication data entries
Asynchronous messaging - security considerations

WebSphere is a trademark of the IBM Corporation in the United States, other countries, or both.

IBM is a trademark of the IBM Corporation in the United States, other countries, or both.

Data type	String
Default	Null
Range	A valid MQ queue manager name, as 1 through 48 ASCII characters

Data type	Integer
Default	Null
Range	A valid TCP/IP port number, configured on the MQ queue manager.

Data type	Enum
Units	Not applicable
Default	BINDINGS
Range	BINDINGS JNI bindings are used to connect to the queue manager. BINDINGS is a shared memory protocol and can only be used when the queue manager is on the same node as the JMS client and comes at some security risks that should be addressed through the use of EJB roles. CLIENT WebSphere MQ client connection is used to connect to the queue manager. CLIENT is a typical TCP-based protocol. DIRECT For WebSphere MQ Event Broker using DIRECT mode. DIRECT is a lightweight sockets protocol used in nontransactional, nondurable and nonpersistent Publish/Subscribe messasging. DIRECT is only works for clients and message-driven beans using the non-ASF protocol. QUEUED QUEUED is a standard TCP protocol.
Recommended	Queue connection factory transport type BINDINGS is faster by 30% or more, but it lacks security. When you have security concerns, BINDINGS is more desirable than CLIENT. Topic connection factory transport type DIRECT is the fastest and should be used where possible. Use BINDINGS when you want to satisfy additional security tasks and the queue manager is local to the JMS client. QUEUED is fallback for all other cases. Note, MQ 5.3 before CSD2 with the DIRECT setting can lose messages when used with message-driven beans and under load. This also happens with client-side based applications unless the broker's maxClientQueueSize is set to 0. One can set this to 0 with the command #wempschangeproperties WAS_nodeName_servername -e default -o DynamicSubscriptionEngine -n maxClientQueueSize -v 0 -x executionGroupUUID , where executionGroupUUID can be found by starting the broker and looking in the Event Log/Applications for event 2201. This value is usually ffffffff-0000-0000-000000000000.