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ASF GitHub Bot logged work on ARTEMIS-2226: ------------------------------------------- Author: ASF GitHub Bot Created on: 01/Feb/19 02:48 Start Date: 01/Feb/19 02:48 Worklog Time Spent: 10m Work Description: michaelandrepearce commented on pull request #2528: ARTEMIS-2226 last consumer connection should close the previous consu… URL: https://github.com/apache/activemq-artemis/pull/2528#discussion_r252918453 ########## File path: artemis-protocols/artemis-mqtt-protocol/src/main/java/org/apache/activemq/artemis/core/protocol/mqtt/MQTTProtocolManager.java ########## @@ -62,11 +73,44 @@ List<BaseInterceptor> outgoingInterceptors) { this.server = server; this.updateInterceptors(incomingInterceptors, outgoingInterceptors); + server.getManagementService().addNotificationListener(this); } @Override public void onNotification(Notification notification) { - // TODO handle notifications + if (!(notification.getType() instanceof CoreNotificationType)) + return; + + CoreNotificationType type = (CoreNotificationType) notification.getType(); + if (type != CONSUMER_CREATED) + return; + + TypedProperties props = notification.getProperties(); + + SimpleString protocolName = props.getSimpleStringProperty(ManagementHelper.HDR_PROTOCOL_NAME); + + if (protocolName == null || !protocolName.toString().equals(MQTTProtocolManagerFactory.MQTT_PROTOCOL_NAME)) + return; + + int distance = props.getIntProperty(ManagementHelper.HDR_DISTANCE); + + if (distance > 0) { + SimpleString queueName = props.getSimpleStringProperty(ManagementHelper.HDR_ROUTING_NAME); + + Binding binding = server.getPostOffice().getBinding(queueName); + if (binding != null) { + Queue queue = (Queue) binding.getBindable(); + String clientId = props.getSimpleStringProperty(ManagementHelper.HDR_CLIENT_ID).toString(); + //If the client ID represents a client already connected to the server then the server MUST disconnect the existing client. + //Avoid consumers with the same client ID in the cluster appearing at different nodes at the same time + Collection<Consumer> consumersSet = queue.getConsumers(); + for (Consumer consumer : consumersSet) { + ServerConsumerImpl serverConsumer = (ServerConsumerImpl) consumer; + if (clientId.equals(serverConsumer.getConnectionClientID())) + serverConsumer.getRemotingConnection().destroy(); Review comment: we already have a connection notification, just need to add the generic extra data as you were going to on the consumer private void sendConnectionNotification(final RemotingConnection connection, final CoreNotificationType type) { final ManagementService managementService = getManagementService(); if (managementService != null && sendConnectionNotifications) { try { final TypedProperties props = new TypedProperties(); props.putSimpleStringProperty(ManagementHelper.HDR_CONNECTION_NAME, SimpleString.toSimpleString(connection.getID().toString())); props.putSimpleStringProperty(ManagementHelper.HDR_REMOTE_ADDRESS, SimpleString.toSimpleString(connection.getRemoteAddress())); props.putSimpleStringProperty(ManagementHelper.HDR_CLIENT_ID, SimpleString.toSimpleString(connection.getClientID())); props.putSimpleStringProperty(ManagementHelper.HDR_PROTOCOL_NAME, SimpleString.toSimpleString(connection.getProtocolName())); managementService.sendNotification(new Notification(null, type, props)); } catch (Exception e) { logger.warn("Error sending notification: " + type, e.getMessage(), e); } } } and then act just at the connection level. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org Issue Time Tracking ------------------- Worklog Id: (was: 193188) Time Spent: 9h (was: 8h 50m) > (MQTT)In the cluster,the last consumer connection should close the previous > consumer connection > ----------------------------------------------------------------------------------------------- > > Key: ARTEMIS-2226 > URL: https://issues.apache.org/jira/browse/ARTEMIS-2226 > Project: ActiveMQ Artemis > Issue Type: Bug > Reporter: Shiping Liang > Priority: Major > Time Spent: 9h > Remaining Estimate: 0h > > Multiple consumers using the same clientId in the cluster, the last consumer > connection should close the previous consumer connection! -- This message was sent by Atlassian JIRA (v7.6.3#76005)