要了解Apache Artemis的最大磁盘使用量和地址满策略,可以使用以下方法:
broker.xml
)中,可以设置
元素来指定最大磁盘使用量的百分比。例如,将最大磁盘使用量设置为80%:80
元素中,可以为每个地址设置
元素,并指定死信队列的名称。例如:
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import org.apache.activemq.artemis.api.core.TransportConfiguration;
import org.apache.activemq.artemis.api.core.client.*;
import org.apache.activemq.artemis.api.core.management.ManagementHelper;
import org.apache.activemq.artemis.api.core.management.ResourceNames;
import org.apache.activemq.artemis.core.config.Configuration;
import org.apache.activemq.artemis.core.remoting.impl.netty.NettyConnectorFactory;
import javax.management.MBeanServerConnection;
import javax.management.ObjectName;
import java.util.HashMap;
import java.util.Map;
public class ArtemisDiskUsageExample {
public static void main(String[] args) throws Exception {
// Create the configuration
Configuration configuration = new Configuration();
configuration.setPersistenceEnabled(true);
// Create the transport configuration
Map transportParams = new HashMap<>();
transportParams.put("host", "localhost");
transportParams.put("port", "61616");
TransportConfiguration transportConfiguration =
new TransportConfiguration(NettyConnectorFactory.class.getName(), transportParams);
// Create the core client
ServerLocator serverLocator = ActiveMQClient.createServerLocatorWithoutHA(transportConfiguration);
ClientSessionFactory sessionFactory = serverLocator.createSessionFactory();
ClientSession session = sessionFactory.createSession();
// Get the broker's maximum disk usage
MBeanServerConnection mbsc = session.management().getMBeanServerConnection();
ObjectName brokerName = ObjectName.getInstance(ResourceNames.BROKER);
String maxDiskUsage = (String) mbsc.getAttribute(brokerName, "MaxDiskUsage");
// Get the address full policy for a specific address
ObjectName addressControlName = ObjectName.getInstance(ResourceNames.CORE_ADDRESS + "myQueue");
String addressFullPolicy = (String) mbsc.getAttribute(addressControlName, "AddressFullMessagePolicy");
System.out.println("Max Disk Usage: " + maxDiskUsage);
System.out.println("Address Full Policy: " + addressFullPolicy);
session.close();
serverLocator.close();
}
}
以上示例代码通过Java代码连接到Artemis broker,并使用JMX获取最大磁盘使用量和地址满策略的配置信息。