How can I increase my ActiveMQ performance?
By default, ActiveMQ strikes a balance between the two, so there are some things you can change to increase throughput.
- Async Publishing. First some background:
- Pre-fetch Sizes for Consumers.
- Optimized Acknowledge.
- Straight through Session Consumption.
- File based Persistence.
- Performance guides.
What is queue depth in ActiveMQ?
You can view the queue depth using the MBeans in ActiveMQ 5. x. Use any JMX management console to see the statistics. Enqueue Count – the total number of messages sent to the queue since the last restart. Dequeue Count – the total number of messages removed from the queue (ack’d by consumer) since last restart.
How many queues can ActiveMQ handle?
1 Answer. There is no arbitrary limit on the number of queues. The only limitation is the resources available to the JVM as each new queue will consume heap memory not just for the messages in the queue but for the queue’s own data-structures.
Is ActiveMQ asynchronous?
ActiveMQ supports sending messages to a broker in sync or async mode. The good news is that ActiveMQ sends message in async mode by default in several cases. It is only in cases where the JMS specification required the use of sync sending that we default to sync sending.
How does ActiveMQ queue work?
How does ActiveMQ work? Written in Java, ActiveMQ translates messages from sender to receiver. It can connect multiple clients and servers and allows messages to be held in queue, instead of requiring both the client and server to be available simultaneously in order to communicate.
How many queues can be created?
There is no limit in the number of queues you can create.
Is ActiveMQ pub sub?
In the case of the point-to-point messaging ActiveMQ works as a load balancer. It routes each message from the queue to one of the available consumers. Meanwhile, if you prefer the “pub/sub” messaging, the system delivers each message to every consumer subscribed to the topic.
What is Artemis message?
Apache ActiveMQ Artemis is an open source project for an asynchronous messaging system. It is high performance, embeddable, clustered and supports multiple protocols. JBoss EAP 7 uses Apache ActiveMQ Artemis as its JMS broker and is configured using the messaging-activemq subsystem.
How do I monitor JMS?
Monitoring JMS Servers. You can monitor statistics on active JMS servers defined in your domain via the Administration Console or through the JMSServerRuntimeMBean. JMS servers act as management containers for JMS queue and topic resources within JMS modules that are specifically targeted to JMS servers.
Is AMQ Kafka?
The Red Hat® AMQ streams component is a massively scalable, distributed, and high-performance data streaming platform based on the Apache Kafka project. It offers a distributed backbone that allows microservices and other applications to share data with high throughput and low latency.
What does AMQ mean?
AMQ offers an admin screen with basic queue information, including queue depth and total number of messages enqueued and dequeued. What’s missing is the ability to track changes in these numbers over time. I wrote a simple Windows service to poll AMQ and publish queue metrics as performance counters.
Can You Track queue metrics over time in ActiveMQ?
At Practice Fusion, we’ve been using ActiveMQ as our messaging solution for the last couple years. It’s a great open source option for distributed messaging that’s reliable and scalable (when configured correctly). However, one important feature that doesn’t seem to be included is the ability to track queue metrics over time.
What is enqueue rate in AMQ?
Enqueue rate is the rate at which messages are being added to the queue. AMQ provides an overall enqueue count via its administration page, but the more valuable piece of information I’m trying to get at is the rate at which the enqueue count is growing.
Is there a way to view the queue depth in JMS?
I know it’s not JMS standard, but most JMS implementations have a way to do this. 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. You can also browse the contents of a queue using the JMS QueueBrowser. Or you can access statistics programmatically