[jira] [Commented] (ARTEMIS-3377) Client does not reconnect after failover when both Live and Backup brokers are killed

["Gary Tully (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/ARTEMIS-3377?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17374931#comment-17374931 ] 

Gary Tully commented on ARTEMIS-3377:
-------------------------------------

that seems expected. A is live, B is a backup of A, C is an empty shell, waiting to take the place of B. B will not have any data that is relevant to the client. 
my understanding is that the locator will have found the url pair (A,B) once B is a replica and that will have replaced the initial three urls in the static configuration.

if you set useTopologyForLoadBalancing false, then the original static urls will remain. however the remaining broker, C, will be empty when the client connects there.
At the moment, it is only possible to have a single backup of a live.

> Client does not reconnect after failover when both Live and Backup brokers are killed
> -------------------------------------------------------------------------------------
>
>                 Key: ARTEMIS-3377
>                 URL: https://issues.apache.org/jira/browse/ARTEMIS-3377
>             Project: ActiveMQ Artemis
>          Issue Type: Bug
>          Components: Broker
>    Affects Versions: 2.16.0
>            Reporter: Apache Dev
>            Priority: Major
>
> Scenario:
>  * 3 brokers configured in Live/Backup with shared DB storage
>  ** Broker A is "Live"
>  ** Broker B is "Backup Announced"
>  ** Broker C is "Waiting to become backup node"
>  * Client is connected using the following HA URL:
>  ** (tcp://activemq:61616,tcp://activemq2:61616,tcp://activemq3:61616)?ha=true&reconnectAttempts=-1&initialConnectAttempts=-1&consumerWindowSize=1048576&minLargeMessageSize=2147483647
>  * Both Broker A and Broker B are killed
>  * Broker C becomes Live
>  * Client does not reconnect to Broker C automatically even if configured with "reconnectAttempts=-1"
>  



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