Content-type: text/html Man page of imqbrokerd


Section: System Administration Commands (1M)
Updated: 11 Mar 2004
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imqbrokerd - start a Message Queue broker instance  


/usr/bin/imqbrokerd [option...]

/usr/bin/imqbrokerd -h  


imqbrokerd starts an instance of the Message Queue broker. The Message Queue broker is the main component of a Message Queue message server. The broker performs reliable delivery of messages to and from Java Message Service (JMS) clients.

imqbrokerd uses command line options to specify broker configuration properties.  


The following options are supported:

-backup fileName

Back up a Master Broker's configuration change record to fileName. This option only applies to broker clusters.

-cluster brokerList

Specify the list of broker instances which are connected in a cluster. This list is merged with the list in the imq.cluster.brokerlist property. This option only applies to broker clusters.

brokerList is a comma-separated list of broker instances, each specified by hostName:port (the host on which the broker instance is running and the port number it is using) If you don't specify a value for hostName, localhost is used. If you don't specify a value for port, the value of 7676 is used. For example: host1:8899,host2,:7878.

-dbpassword password

Specify the password for a plugged-in JDBC-compliant database used as a Message Queue data store.

-dbuser userName

Specify the user name for a plugged-in JDBC-compliant data store.


Set the specified broker configuration property to the value. The system does not validate either the configuration property or value. Therefore, spelling, formatting, and case is important. Message Queue can not set incorrect values passed using the -D option.


Perform action without user confirmation. This option only applies when you use the -remove instance option, which normally requires confirmation.


Display usage help. Execute nothing else on the command line.

-javahome path

Specify the path to an alternate Java 2-compatible Java Development Kit (JDK) or Java Runtime Environment (JRE) The default is to use the runtime bundled with the operating system.

-ldappassword password

Specify the password for accessing an LDAP user repository when using an LDAP server (as opposed to a built-in flat-file repository) to authenticate users of a Message Queue message server.

-license [name]

Specify the license to load, if different from the default for your Message Queue product edition. If you don't specify a license name, this lists all licenses installed on the system. Depending on the installed Message Queue edition, the values for name are pe (Platform Edition-basic features), try (Platform Edition-90-day trial enterprise features), and unl (Enterprise Edition).

-loglevel level

Specify the logging level. Valid values for level are NONE, ERROR, WARNING, or INFO. The default value is INFO.

-metrics int

Report metrics at a specific interval. Specify int as the number of seconds.

-name brokerName

Specify the instance name of this broker and use the corresponding instance configuration file. If you do not specify a broker name, the name of the file is set to imqbroker. If you run more than one instance of a broker on the same host, each must have a unique name.

-passfile filename

Specify the name of the file from which to read the passwords for the SSL keystore, LDAP user repository, or JDBC-compliant database.

-password keypassword

Specify the password for the SSL certificate keystore.

-port number

Specify the broker's Port Mapper port number. By default, this is set to 7676. To run two instances of a broker on the same server, each broker's Port Mapper must have a different port number. JMS clients connect to the broker instance using this port number.

-remove instance

Remove the broker instance. Delete the instance configuration file, log files, data store, and other files and directories associated with the broker instance. This option requires user confirmation unless you also specify the -force option.

-reset store|messages|durables|props

Reset the data store (or a subset of the store) or resets the configuration properties of the broker instance when the broker instance is started. The action depends on the argument provided.


Clear all persistent data in the data store, including messages, durable subscriptions, and transaction information store.


Clear all persistent messages durable.


Clear all durable subscriptions.


Clear all configuration information in the config.props instance configuration file. All properties assume default values.

-restore filename

Replace the Master Broker's configuration change record with the specified backup file. This file must have been previously created using the -backup option. This option only applies to broker clusters.


Specify that the jms connection service be implemented using the shared threadpool model, in which threads are shared among connections to increase the number of connections supported by a broker instance.


Turn off logging to the console.


Display all messages be to the console. WARNING and ERROR level messages are displayed on the console by default.


Specify that an earlier, incompatible version Message Queue data store is automatically removed when migrating to Message Queue 3.5 format.

If you do not use this option, you must manually delete the earlier data store. This applies to both built-in (flat-file) persistence and plugged-in (JDBC-compliant) persistence. Migration of the earlier data store to a Message Queue 3.5 data store takes place the first time you start a Message Queue 3.5 broker instance on an earlier version data store.


Display the version number of the installed product.

-vmargs are [[arg]...]

 Specify arguments to pass to the Java VM. Separate arguments with spaces. If you want to pass more than one argument or if an argument contains a space, use enclosing quotation marks. For example:

imqbrokerd -tty -vmargs " -Xmx128m -Xincgc"




 The following environment variables affect the execution of this command: 

IMQ_JAVAHOME Specify the Java 2 compatible runtime. When this environment variable is not set it defaults to /usr/j2se.



The following exit values are returned:

0 Successful completion.

>0 An error occurred.




Shell script for starting imqbrokerd. This file looks at the /etc/imq/imqbrokerd.conf file.


Configuration file which controls the behavior of the broker startup script.


 Flat file user repository for authenticating users.


 Controls client access to broker functionality.


Sample passfile used by the -passfile option.


Broker instance configuration file.



See attributes(5) for descriptions of the following attributes:




imqadmin(1M), imqcmd(1M), imqdbmgr(1M), imqkeytool(1M), imqobjmgr(1M), imqusermgr(1M), attributes(5)

Sun Java System Message Queue Administrator's Guide




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Time: 02:37:09 GMT, October 02, 2010