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