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https://issues.apache.org/jira/browse/ARTEMIS-3365?focusedWorklogId=633725&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-633725
]
ASF GitHub Bot logged work on ARTEMIS-3365:
-------------------------------------------
Author: ASF GitHub Bot
Created on: 04/Aug/21 18:12
Start Date: 04/Aug/21 18:12
Worklog Time Spent: 10m
Work Description: brusdev commented on a change in pull request #3634:
URL: https://github.com/apache/activemq-artemis/pull/3634#discussion_r682848946
##########
File path:
examples/features/broker-balancer/evenly-redirect/src/main/java/org/apache/activemq/artemis/jms/example/EvenlyRedirectExample.java
##########
@@ -0,0 +1,102 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.activemq.artemis.jms.example;
+
+import javax.jms.Connection;
+import javax.jms.ConnectionFactory;
+import javax.jms.MessageConsumer;
+import javax.jms.MessageProducer;
+import javax.jms.Queue;
+import javax.jms.Session;
+import javax.jms.TextMessage;
+
+import org.apache.activemq.artemis.jms.client.ActiveMQConnectionFactory;
+
+/**
+ * This example is demonstrating how incoming client connections are evely
redirected from one broker towards
+ * worker brokers.
+ */
+public class EvenlyRedirectExample {
+
+ public static void main(final String[] args) throws Exception {
+
+ ConnectionFactory connectionFactoryClient0 = new
ActiveMQConnectionFactory("tcp://localhost:61616?ha=true&reconnectAttempts=30&clientID=CLIENT_0");
+ ConnectionFactory connectionFactoryClient1 = new
ActiveMQConnectionFactory("tcp://localhost:61616?ha=true&reconnectAttempts=30&clientID=CLIENT_1");
+
+ /**
+ * Step 1. Create a connection for producer0 and producer1, and send a
few messages.
+ * the server0 will redirect the connection of each producer to a
different target brokers.
+ */
+ Connection connectionProducer0 = null;
+ Connection connectionProducer1 = null;
+
+ try {
+ connectionProducer0 = connectionFactoryClient0.createConnection();
+ connectionProducer1 = connectionFactoryClient1.createConnection();
+
+ for (Connection connectionProducer : new Connection[]
{connectionProducer0, connectionProducer1}) {
+ Session session = connectionProducer.createSession(false,
Session.AUTO_ACKNOWLEDGE);
+
+ Queue queue = session.createQueue("exampleQueue");
+ MessageProducer sender = session.createProducer(queue);
+ for (int i = 0; i < 100; i++) {
+ sender.send(session.createTextMessage("Hello world n" + i + " -
" + connectionProducer.getClientID()));
+ }
+ }
+ } finally {
+ if (connectionProducer0 != null) {
+ connectionProducer0.close();
+ }
+
+ if (connectionProducer1 != null) {
+ connectionProducer1.close();
+ }
+ }
+
+ /**
+ * Step 2. create a connection for consumer0 and consumer1, and receive
a few messages.
+ * the server0 will redirect the connection to the same target broker of
the respective producer
+ * because the consumer and the producer share the same clientID.
Review comment:
The broker balancer defined int the evenly-redirect example uses a cache
based on the CLIENT_ID key to provide affinity. I'll change the example to
prove it.
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Issue Time Tracking
-------------------
Worklog Id: (was: 633725)
Time Spent: 5h 40m (was: 5.5h)
> Broker Balancers
> ----------------
>
> Key: ARTEMIS-3365
> URL: https://issues.apache.org/jira/browse/ARTEMIS-3365
> Project: ActiveMQ Artemis
> Issue Type: New Feature
> Reporter: Domenico Francesco Bruscino
> Assignee: Domenico Francesco Bruscino
> Priority: Major
> Time Spent: 5h 40m
> Remaining Estimate: 0h
>
> This feature adds the broker balancers to distribute the incoming client
> connections across multiple brokers.
> It provides a native redirection for supported clients and a new management
> API for other clients. The native redirection can be enabled per acceptor and
> is supported only for CORE and AMQP clients.
> See the [draft
> documentation|https://github.com/brusdev/activemq-artemis/blob/broker_balancers/docs/user-manual/en/broker-balancers.md]
> for further details.
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