[jboss-jira] [JBoss JIRA] (WFLY-4314) Add blocking option to reload command for standalone server

[Brian Stansberry (JIRA)]

    [ https://issues.jboss.org/browse/WFLY-4314?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13037658#comment-13037658 ] 

Brian Stansberry commented on WFLY-4314:
----------------------------------------

Does this work?

{code}
if (outcome == failed) of /subsystem=resource-adapters/resource-adapter=activemq-ra:read-resource
        /subsystem=resource-adapters/resource-adapter=activemq-ra:add(archive=activemq-ra.rar)
        reload
end-if
{code}

No ":" before "reload".

The behavior you are looking for is not possible with a low level operation, i.e. ":reload". It is possible with the high level CLI command "reload".

A low-level operation that triggers a reload can support a blocking parameter if it is targeted at a Host Controller. The blocking behavior is implemented in the HC process, which isn't being reloaded. The blocking behavior can't be implemented in the server process because the reload requires stopping all the services, including those that would block. The high level CLI "reload" command does the blocking on the client side.

> Add blocking option to reload command for standalone server
> -----------------------------------------------------------
>
>                 Key: WFLY-4314
>                 URL: https://issues.jboss.org/browse/WFLY-4314
>             Project: WildFly
>          Issue Type: Enhancement
>          Components: Domain Management
>    Affects Versions: JBoss AS7 7.2.0.Final, 8.2.0.Final
>            Reporter: Tomas Rohovsky
>            Assignee: Brian Stansberry
>
> reload command is non-blocking which causes problems in CLI scripts. Let's take this as an example:
> {code}
> if (outcome == failed) of /subsystem=resource-adapters/resource-adapter=activemq-ra:read-resource
>         /subsystem=resource-adapters/resource-adapter=activemq-ra:add(archive=activemq-ra.rar)
>         :reload
> end-if
> {code}
> I use jboss-as-maven-plugin for its execution and sometimes I get: {Command execution failed for command 'end-if'. if request failed: java.util.concurrent.ExecutionException: Operation failed: Channel closed}
> This functionality has already been asked in WFLY-208, but for some reason it was implemented only for domain-related commands but not standalone-related (reload and shutdown).



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