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https://issues.apache.org/jira/browse/ARTEMIS-2226?focusedWorklogId=192105&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-192105
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ASF GitHub Bot logged work on ARTEMIS-2226:
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Author: ASF GitHub Bot
Created on: 30/Jan/19 08:33
Start Date: 30/Jan/19 08:33
Worklog Time Spent: 10m
Work Description: franz1981 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_r252156810
##########
File path:
artemis-server/src/main/java/org/apache/activemq/artemis/core/postoffice/impl/PostOfficeImpl.java
##########
@@ -343,6 +347,18 @@ public void onNotification(final Notification
notification) {
if (binding != null) {
// We have a local queue
Queue queue = (Queue) binding.getBindable();
+ //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
+ SimpleString protocolName =
props.getSimpleStringProperty(ManagementHelper.HDR_PROTOCOL_Name);
Review comment:
I'm not that familiar with the MQTT protocol, but I can give you an idea:
instead of using a SimpleString property, that is costly to be
compared/transferred/encoded/decoded why not define a single byte (or short to
be more future-proof) property?
It would be less human-readable, but more cheaper for a machine: in
addition, a Short/Byte tends to be pooled on the ranges of -127<->128 AFAIK or
something similar, so only the property name + HashMap entry will produce some
garbage.
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Issue Time Tracking
-------------------
Worklog Id: (was: 192105)
Time Spent: 20m (was: 10m)
> (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: 20m
> Remaining Estimate: 0h
>
> Multiple consumers using the same clientId in the cluster, the last consumer
> connection should close the previous consumer connection!
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