NO-JIRA management doc updates and clarifications
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Justin Bertram
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@ -6,12 +6,12 @@ queues), inspect these resources (e.g. how many messages are currently held in
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a queue) and interact with it (e.g. to remove messages from a queue). Apache
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ActiveMQ Artemis also allows clients to subscribe to management notifications.
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There are four ways to access Apache ActiveMQ Artemis management API:
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There are numerous ways to access Apache ActiveMQ Artemis management API:
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- Using JMX -- *JMX* is the standard way to manage Java applications
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- Using Jolokia -- Jolokia exposes the JMX API of an application through a
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*REST interface*
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- Using Jolokia -- Jolokia exposes the JMX API of an application through an
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*HTTP interface*
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- Using the Core Client -- management operations are sent to Apache ActiveMQ
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Artemis server using *Core Client messages*
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@ -19,6 +19,9 @@ There are four ways to access Apache ActiveMQ Artemis management API:
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- Using any JMS Client -- management operations are sent to Apache ActiveMQ
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Artemis server using *JMS Client messages*
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- Web Console -- a web application which provides a graphical interface to the
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management API.
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Although there are four different ways to manage Apache ActiveMQ Artemis, each
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API supports the same functionality. If it is possible to manage a resource
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using JMX it is also possible to achieve the same result using Core messages.
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@ -30,12 +33,6 @@ ActiveMQ Artemis.
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The choice depends on your requirements, your application settings, and your
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environment to decide which way suits you best.
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> **Note:**
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>
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> In version 2 of Apache ActiveMQ Artemis the syntax used for MBean Object
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> names has changed significantly due to changes in the addressing scheme. See
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> the documentation for each individual resource for details on the new syntax.
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## The Management API
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Regardless of the way you *invoke* management operations, the management API is
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@ -49,14 +46,7 @@ interfaces. They are located in the
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`org.apache.activemq.artemis.api.core.management` package and they are named
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with the word `Control` at the end.
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The way to invoke management operations depends on whether JMX, Core messages,
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or JMS messages are used.
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### Management API
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For full details of the API please consult the Javadoc. In summary:
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#### Server Management
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### Server Management
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The `ActiveMQServerControl` interface is the entry point for broker management.
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@ -127,7 +117,7 @@ The `ActiveMQServerControl` interface is the entry point for broker management.
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> Since this method actually stops the server you will probably receive some
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> sort of error depending on which management service you use to call it.
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#### Address Management
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### Address Management
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Individual addresses can be managed using the `AddressControl` interface.
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@ -144,7 +134,7 @@ Individual addresses can be managed using the `AddressControl` interface.
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Thus all messages sent to the address will be received but not delivered. When it is
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resumed, delivering will occur again.
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#### Queue Management
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### Queue Management
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The bulk of the management API deals with queues. The `QueueControl` interface
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defines the queue management operations.
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@ -223,7 +213,7 @@ a given property.)
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This is useful where you may need to disable message routing to a queue but wish to keep consumers active
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to investigate issues, without causing further message build up in the queue.
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#### Other Resources Management
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### Other Resources Management
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Apache ActiveMQ Artemis allows to start and stop its remote resources
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(acceptors, diverts, bridges, etc.) so that a server can be taken off line for
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@ -264,17 +254,15 @@ resources are:
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retrieved using the `ClusterConnectionControl` attributes (see
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[Clusters](clusters.md))
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## Using Management Via JMX
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## Management Via JMX
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Apache ActiveMQ Artemis can be managed using
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[JMX](http://www.oracle.com/technetwork/java/javase/tech/javamanagement-140525.html).
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The management API is exposed by Apache ActiveMQ Artemis using MBeans
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interfaces. Apache ActiveMQ Artemis registers its resources with the domain
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`org.apache.activemq.artemis`.
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For example, the `ObjectName` to manage the anycast queue `exampleQueue` on the
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address `exampleAddress` is:
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The management API is exposed by Apache ActiveMQ Artemis using MBeans. By
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default, Apache ActiveMQ Artemis registers its resources with the domain
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`org.apache.activemq.artemis`. For example, the `ObjectName` to manage the
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anycast queue `exampleQueue` on the address `exampleAddress` is:
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```
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org.apache.activemq.artemis:broker=<brokerName>,component=addresses,address="exampleAddress",subcomponent=queues,routing-type="anycast",queue="exampleQueue"
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@ -286,11 +274,9 @@ and the MBean is:
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org.apache.activemq.artemis.api.core.management.QueueControl
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```
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The MBean `ObjectName`'s are built using the helper class
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`org.apache.activemq.artemis.api.core.management.ObjectNameBuilder`. You can
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also use `jconsole` to find the `ObjectName` of the MBean you want to manage.
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Example usage of the `ObjectNameBuilder` to obtain `ActiveMQServerControl`'s name:
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The MBean's `ObjectName` is built using the helper class
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`org.apache.activemq.artemis.api.core.management.ObjectNameBuilder`. Example
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usage of the `ObjectNameBuilder` to obtain `ActiveMQServerControl`'s name:
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``` java
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brokerName = "0.0.0.0"; // configured e.g. in broker.xml <broker-name> element
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@ -308,23 +294,22 @@ By default, JMX is enabled to manage Apache ActiveMQ Artemis. It can be
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disabled by setting `jmx-management-enabled` to `false` in `broker.xml`:
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```xml
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<!-- false to disable JMX management for Apache ActiveMQ Artemis -->
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<jmx-management-enabled>false</jmx-management-enabled>
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```
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#### Role Based Authorisation for JMX
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Although by default Artemis uses the Java Virtual Machine's `Platform
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MBeanServer` this is guarded using role based authentication that leverages
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Artemis's JAAS plugin support. This is configured via the `authorisation`
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MBeanServer` this is guarded using role based authorisation that leverages
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the broker's JAAS plugin support. This is configured via the `authorisation`
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element in the `management.xml` configuration file and can be used to restrict
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access to attributes and methods on mbeans.
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access to attributes and methods on MBeans.
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There are 3 elements within the `authorisation` element, `whitelist`,
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`default-access` and `role-access`, Lets discuss each in turn.
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`default-access` and `role-access`. Lets discuss each in turn.
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Whitelist contains a list of mBeans that will by pass the authentication, this
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is typically used for any mbeans that are needed by the console to run etc. The
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Whitelist contains a list of MBeans that will bypass the authorisation, this
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is typically used for any MBeans that are needed by the console to run etc. The
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default configuration is:
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```xml
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@ -332,9 +317,9 @@ default configuration is:
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<entry domain="hawtio"/>
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</whitelist>
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```
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This means that any mbean with the domain `hawtio` will be allowed access
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This means that any MBean with the domain `hawtio` will be allowed access
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without authorisation. for instance `hawtio:plugin=artemis`. You can also use
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wildcards for the mBean properties so the following would also match.
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wildcards for the MBean properties so the following would also match.
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```xml
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<whitelist>
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@ -342,7 +327,7 @@ wildcards for the mBean properties so the following would also match.
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</whitelist>
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```
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The `role-access`defines how roles are mapped to particular mBeans and its
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The `role-access`defines how roles are mapped to particular MBeans and its
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attributes and methods, the default configuration looks like:
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```xml
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@ -356,12 +341,12 @@ attributes and methods, the default configuration looks like:
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</match>
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</role-access>
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```
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This contains 1 match and will be applied to any mBean that has the domain
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`org.apache.activemq.artemis`. Any access to any mBeans that have this domain
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This contains 1 match and will be applied to any MBean that has the domain
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`org.apache.activemq.artemis`. Any access to any MBeans that have this domain
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are controlled by the `access` elements which contain a method and a set of
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roles. The method being invoked will be used to pick the closest matching
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method and the roles for this will be applied for access. For instance if you
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try the invoke a method called `listMessages` on an mBean with the
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try the invoke a method called `listMessages` on an MBean with the
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`org.apache.activemq.artemis` domain then this would match the `access` with
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the method of `list*`. You could also explicitly configure this by using the
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full method name, like so:
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@ -369,8 +354,8 @@ full method name, like so:
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```xml
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<access method="listMessages" roles="view,update,amq"/>
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```
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You can also match specific mBeans within a domain by adding a key attribute
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that is used to match one of the properties on the mBean, like:
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You can also match specific MBeans within a domain by adding a key attribute
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that is used to match one of the properties on the MBean, like:
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```xml
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<match domain="org.apache.activemq.artemis" key="subcomponent=queues">
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@ -399,8 +384,8 @@ by configuring:
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</match>
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```
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You can also use wildcards for the mBean properties so the following would
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also match, allowing prefix match for the mBean properties.
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You can also use wildcards for the MBean properties so the following would
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also match, allowing prefix match for the MBean properties.
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```xml
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<match domain="org.apache.activemq.artemis" key="queue=example*">
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@ -416,7 +401,7 @@ In case of multiple matches, the exact matches have higher priority than the
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wildcard matches and the longer wildcard matches have higher priority than the
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shorter wildcard matches.
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Access to JMX mBean attributes are converted to method calls so these are
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Access to JMX MBean attributes are converted to method calls so these are
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controlled via the `set*`, `get*` and `is*`. The `*` access is the catch all
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for everything other method that isn't specifically matched.
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@ -424,19 +409,22 @@ The `default-access` element is basically the catch all for every method call
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that isn't handled via the `role-access` configuration. This has the same
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semantics as a `match` element.
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> **Note:**
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>
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> If JMX is enabled, Apache ActiveMQ Artemis can *not* be managed locally using
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> `jconsole` when connecting as a local process, this is because jconsole does
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> not using any authentication when connecting this way. If you want to use
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> jconsole you will either have to disable authentication, by removing the
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> `authentication` element or enable remote access.
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#### Local JMX Access with JConsole
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#### Configuring remote JMX Access
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Due to the authorisation which is enabled by default Apache ActiveMQ Artemis
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can *not* be managed locally using JConsole when connecting as a *local
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process*. This is because JConsole does not pass any authentication information
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when connecting this way which means the user cannot therefore be authorised
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for any management operations. In order to use JConsole the user will either
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have to disable authorisation by completely removing the `authorisation` element
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from `management.xml` or by enabling remote access and providing the proper
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username and password credentials (discussed next).
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#### Remote JMX Access
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By default remote JMX access to Artemis is disabled for security reasons.
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Artemis has a JMX agent which allows access to JMX mBeans remotely. This is
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Artemis has a JMX agent which allows access to JMX MBeans remotely. This is
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configured via the `connector` element in the `management.xml` configuration
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file. To enable this you simply add the following xml:
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@ -445,7 +433,7 @@ file. To enable this you simply add the following xml:
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```
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This exposes the agent remotely on the port 1099. If you were connecting via
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jconsole you would connect as a remote process using the service url
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JConsole you would connect as a remote process using the service url
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`service:jmx:rmi:///jndi/rmi://localhost:1099/jmxrmi` and an appropriate user
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name and password.
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@ -519,7 +507,7 @@ You can also configure the connector using the following:
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> **Note:**
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>
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> Remote connections using the default JVM Agent not enabled by default as
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> Artemis exposes the mBean Server via its own configuration. This is so
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> Artemis exposes the MBean Server via its own configuration. This is so
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> Artemis can leverage the JAAS authentication layer via JMX. If you want to
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> expose this then you will need to disable both the connector and the
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> authorisation by removing them from the `management.xml` configuration.
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@ -561,14 +549,14 @@ This would give you back something like the following:
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{"request":{"mbean":"org.apache.activemq.artemis:broker=\"0.0.0.0\"","attribute":"Version","type":"read"},"value":"2.0.0-SNAPSHOT","timestamp":1487017918,"status":200}
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```
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### JMX and the Console
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### JMX and the Web Console
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The console that ships with Artemis uses Jolokia under the covers which in turn
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uses JMX. This will use the authentication configuration in the
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The web console that ships with Artemis uses Jolokia under the covers which in
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turn uses JMX. This will use the authentication configuration in the
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`management.xml` file as described in the previous section. This means that
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when mBeans are accessed via the console the credentials used to log into the
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when MBeans are accessed via the console the credentials used to log into the
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console and the roles associated with them. By default access to the console is
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only allow via users with the amq role. This is configured in the
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only allow via users with the `amq` role. This is configured in the
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`artemis.profile` via the system property `-Dhawtio.role=amq`. You can
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configure multiple roles by changing this to `-Dhawtio.roles=amq,view,update`.
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