[jboss-jira] [JBoss JIRA] (WFLY-10314) Futures returned by CommandDispatcher.submitOnCluster(...) throws ClassCastException on get() if target node has no corresponding CommandDispatcher

[Paul Ferraro (JIRA)]

     [ https://issues.jboss.org/browse/WFLY-10314?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Paul Ferraro updated WFLY-10314:
--------------------------------
    Description: 
The futures returned by CommandDispatcher.submitOnCluster(...) contain the command execution results per member of the cluster.  However, if a given member has no active CommandDispatcher to receive the command, the resulting behavior is not handled, and the Future.get() will throw a ClassCastException.  This is because the RspFilter contained in the RspOptions as passed to the MessageDispatcher is not invoked for unicast requests.

The API will likely need to be adjusted/documented to define what behavior to expect in this scenario.

  was:
CommandDispatcher.executeOnNode(...) is used to execute a given command on a given member of the cluster.  However, the target member does not have an active CommandDispatcher to receive the command, the resulting behavior is not handled, and the caller receives a ClassCastException.  This is because the RspFilter contained in the RspOptions as passed to the MessageDispatcher is not invoked for unicast requests.

The API will likely need to be adjusted/documented to define what behavior to expect in this scenario.



> Futures returned by CommandDispatcher.submitOnCluster(...) throws ClassCastException on get() if target node has no corresponding CommandDispatcher
> ---------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: WFLY-10314
>                 URL: https://issues.jboss.org/browse/WFLY-10314
>             Project: WildFly
>          Issue Type: Bug
>          Components: Clustering
>    Affects Versions: 12.0.0.Final
>            Reporter: Paul Ferraro
>            Assignee: Paul Ferraro
>
> The futures returned by CommandDispatcher.submitOnCluster(...) contain the command execution results per member of the cluster.  However, if a given member has no active CommandDispatcher to receive the command, the resulting behavior is not handled, and the Future.get() will throw a ClassCastException.  This is because the RspFilter contained in the RspOptions as passed to the MessageDispatcher is not invoked for unicast requests.
> The API will likely need to be adjusted/documented to define what behavior to expect in this scenario.



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