What is ActiveMQ connection factory?

What is ActiveMQ connection factory?

A ConnectionFactory is an an Administered object, and is used for creating Connections. This class also implements QueueConnectionFactory and TopicConnectionFactory. You can use this connection to create both QueueConnections and TopicConnections.

Where is connection factory in WebLogic?

WebLogic Server defines two default connection factories, which can be looked up using the following JNDI names:

1. weblogic. jms. ConnectionFactory.
2. weblogic. jms. XAConnectionFactory.

What is ActiveMQ default port?

61616

ActiveMQ’s default port is 61616. From another window run netstat and search for port 61616.

How do I connect to ActiveMQ?

1. Step 1: create an ActiveMQ broker. The first and most common Amazon MQ task is creating a broker.
2. Step 2: connect a Java application to your broker. After you create an Amazon MQ ActiveMQ broker, you can connect your application to it.
3. Step 3: (Optional) connect to an AWS Lambda function.
4. Step 4: delete your broker.

How do I create a queue connection factory in ActiveMQ?

In ActiveMQ you do not have to create destinations before they can be used. The ActiveMQ broker creates the physical resources associated with a destination on demand, so if you call createQueue() on a JMS session, it will create the queue for you if it does not already exist. Show activity on this post.

What is difference between JMS and ActiveMQ?

What Is the Difference Between JMS and ActiveMQ? ActiveMQ is a JMS provider. A JMS provider forms the software framework for facilitating the use of JMS concepts inside an application. A single node of ActiveMQ which allows clients to connect to it and use these messaging concepts is called an “ActiveMQ Broker.”

Where are JMS messages in WebLogic console?

To View Message Properties

1. Select the topic or queue as described in Monitoring Topics and Queues for JMS IQ Manager.
2. In the Messages tab, select the message and click the Properties icon. The View Message Property dialog box appears. The following table describes the message properties.
3. When you are done, click Close.

How do I create a JMS queue in WebLogic 12c?

Procedure

1. Log in to the WebLogic Server administration console.
2. Create a persistent store.
3. Create a JMS Server.
4. Create a JMS System Module.
5. Add a connection factory to the JMS module.
6. Add a queue to the JMS module.
7. Set the XA option for the connection factory.
8. Click Activate Changes to save and activate all changes.

How ActiveMQ works internally?

ActiveMQ uses memory to store messages awaiting dispatch to consumers. Each message occupies some memory (how much depends on the size of the message) until it is dequeued and delivered to a consumer. At that point, ActiveMQ frees up the memory that had been used for that message.

What protocol does ActiveMQ use?

ActiveMQ is an open source protocol developed by Apache which functions as an implementation of message-oriented middleware (MOM). Its basic function is to send messages between different applications, but includes additional features like STOMP, JMS, and OpenWire.

How do I start ActiveMQ locally?

Linux

1. Unpack the files. cd /home/user/activemq. tar zxvf activemq-x.x.x-bin.tar.gz.
2. Find the ActiveMQ installation directory and open the bin directory.
3. Open the console and run the following command: ./activemq start.

How do I send a message to ActiveMQ queue?

A Short ActiveMQ and JMS Tutorial

1. Step 1: Download and start ActiveMQ.
2. Step 2: Download the JMS Example file.
3. Step 4: Open three additional console windows.
4. Step 3: Do the Maven Install.
5. Step 4: Start the JMS Consumers and Producer for Topic-based Messaging.
6. Step 5: Send JMS messages to the Topic.

Is ActiveMQ push or pull?

ActiveMQ will push as many messages to the consumer as fast as possible, where they will be queued for processing by an ActiveMQ Session. The maximum number of messages that ActiveMQ will push to a Consumer without the Consumer processing a message is set by the pre-fetch size.

Where are JMS messages stored?

JMS servers can store persistent messages in a host server’s default file store by enabling the “Use the Default Store” option. In prior releases, persistent messages were silently downgraded to non-persistent if no store was configured.

How do I link a JMS queue to WebLogic?

The following steps are done in the WebLogic Server Console, beginning with the left-hand navigation menu.

1. 2.1 Create Persistent store-
2. 2.2 Create a JMS Server-
3. 2.3 Create a JMS Module.
4. 2.4 Create a SubDeployment.
5. 2.5 Create a Connection Factory.
6. 2.6 Create a JMS Queue.

How can I check JMS messages in WebLogic?

How many messages can ActiveMQ handle?

Message limit and maxBrowsePageSize
ActiveMQ has a settings which limits number of messages that can be browsed by a client. By default, it’s 400.

Is ActiveMQ TCP or UDP?

All the kinds of clients and protocols which ActiveMQ supports use TCP as their transport layer.

How do I start ActiveMQ from command line?

How do I check my ActiveMQ queue?

You can view the queue depth using the MBeans in ActiveMQ 5. x. Use any JMX management console to see the statistics. See How can I monitor ActiveMQ.

How many connections can ActiveMQ handle?

Brokers

How do I monitor JMS queue in WebLogic?

To Monitor Topics and Queues

1. In the Explorer panel of Enterprise Manager, select the WebLogic JMS node.
2. In the Details panel, click the Topics tab.
3. Click the Queues tab.
4. When you select a topic or queue, the Messages tab in the lower portion of the Details panel displays information about the topic or queue.

What is JMS file?

A JMS file store consists of a disk-based file that is used for storing persistent messages and durable subscribers.

What is T3 URL in WebLogic?

T3 is the protocol used to transport information between WebLogic servers and other types of Java programs. WebLogic keeps track of every Java virtual machine connected to the application. To carry traffic to the Java virtual machine, WebLogic creates a single T3 connection.

Is ActiveMQ in memory?

The problem is ActiveMQ is consuming memory and it is not getting free after that. It keeps on increasing until we restart ActiveMQ.