[jboss-dev-forums] [Clustering Development] New message: "Re: Partition and Node identities"

[jaikiran pai]

JBoss development,

A new message was posted in the thread "Partition and Node identities":

http://community.jboss.org/message/529264#529264

Author  : jaikiran pai
Profile : http://community.jboss.org/people/jaikiran

Message:
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> mailto:david.lloyd at jboss.com wrote:
>  
> 
>  
> In terms of implementation, my few minutes of research on the topic indicate that the best way to calculate a default node name at boot would be as follows.
> 1. Define a system property, "jboss.host.qualified.name" or just "host.qualified.name", which, if unspecified, defaults to the value of:1. the HOSTNAME env var, or if that is not specified,
> 2. the COMPUTERNAME env var, or if that is not specified,
> 3. the value of InetAddress.getLocalHost().getHostName(), or if that does not turn up anything,
> 4. a default value such as "unknown-host.unknown-domain"
> 
> 2. Define a system property, "jboss.host.name" or just "host.name", which, if unspecified, defaults to host portion of the above property
> 3. Define a system property, "jboss.node.name" which, if unspecified, defaults to the value of the above property
>  
Given this above scheme, 2 +independent+ (non-clustered) instances of JBossAS running on the same machine, might end up with the same node name unless the user explicitly specifies a unique jboss.node.name for each of those instances, isn't it? Maybe we should by default take into account the -b option to determine the default node name? That way, the user can just continue doing:
 
run.sh -c default -b 127.0.0.1

 
run.sh -c custom -b 127.0.0.2

 
and the node names would then be 127.0.0.1 and 127.0.0.2 respectively.

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