[jboss-as7-dev] Providing server name on command line?

[Brian Stansberry]

On 3/29/11 7:31 AM, Heiko W.Rupp wrote:
>
> Am 29.03.2011 um 14:25 schrieb Heiko Braun:
>> Thats the server configuration name you see in the logs.
>> You can get a list of names like this:
>>     "result" =>  [
>>         "server-one",
>>         "server-two",
>>         "server-three"
>>     ],
>>
>
>> Is this what you are looking for?
>
> Not exactly.
> When I do ps I get:
>
> $ ps auxw|grep org.jboss.as.server
> hrupp    10375   0,1  1,0  1329304  87832 s003  S+    1:20pm   0:07.26 /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home/bin/java -Xms64m -Xmx512m -Dorg.jboss.boot.log.file=domain/servers/server-one/log/boot.log -Dlogging.configuration=file:/devel/jbas7/jboss-as/build/target/jboss-7.0.0.Beta2/domain/configuration/logging.properties -jar jboss-modules.jar -mp modules -logmodule org.jboss.logmanager -jaxpmodule javax.xml.jaxp-provider org.jboss.as.server
> hrupp    10376   0,0  0,9  1057880  79560 s003  S+    1:20pm   0:07.22 /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home/bin/java -Xms64m -Xmx256m -Dorg.jboss.boot.log.file=domain/servers/server-two/log/boot.log -Dlogging.configuration=file:/devel/jbas7/jboss-as/build/target/jboss-7.0.0.Beta2/domain/configuration/logging.properties -jar jboss-modules.jar -mp modules -logmodule org.jboss.logmanager -jaxpmodule javax.xml.jaxp-provider org.jboss.as.server
>
> those two instances only differer in the value of -Dorg.jboss.boot.log.file ; RHQ is able to discover processes and then needs to give them a name.
> Here the server name 'server-one' etc. comes to mind. This is helpful as it can be correlated to the information in the domain model that you
> showed.
> I just have the fear that the log file name is too fragile to be used to uniquely identify a single managed AS instance.
>

Users shouldn't be able to change the name of running servers. (Maybe 
they can, but that would be a bug.)

If you need to be able to read the server name from the OS process info, 
it should be a regular feature, not depending on something like the 
-Dorg.jboss.boot.log.file that we're free to change. <hack-alert>If need 
be could add a bogus arg to org.jboss.as.server like --name 
server-one.</hack-alert>

> I was first thinking of having -Das.name=server-one , but when the user changes the server name, this property will not change until next process restart,
> which is uncool.
>
> Another option could be that the domain model is returning the pid of the running instance.
>

The host controller has no access to the pid.

>     Heiko
>


-- 
Brian Stansberry
Principal Software Engineer
JBoss by Red Hat