Jennifer,
They should be documented.
--multicastaddress and --multicastport are used to broadcast messages to
all instances in the cluster.
GMS uses it to monitor health of instances in the cluster.
--multicastaddress is a renaming of undocumented v2.x --heartbeataddress
It must be a valid multicast address in the range from 224.0.0.0 through
239.255.255.255,
When this parameter is not specified, the create-cluster command
generate a multicast address of "228.9.XX.YY" where XX and YY are
independent
values between 0..255.
--multicastport is a renaming of undocumented v2.1 --heartbeatport
Valid values are from 2048 to 32000. When this parameter is not specified,
we generate a value between the valid ranges mentioned above.
For ease of use, these parameters being optional and generation of
these values is a good thing.
However, for an administrator, they would prefer to control this.
So it is best to document so it is easier for them to do it.
-Joe
On 7/20/10 11:08 PM, Jennifer Chou wrote:
> Hi Joe, Bobby,
>
> We're trying to finalize the usage of the commands in the design spec:
> http://wikis.sun.com/display/GlassFish/V3.1Clustering#V3.1Clustering-ClusterAdminCommands
> I wanted to verify if these options should be added for create-cluster
> in 3.1: --multicastport and --multicastaddress ?
> They are not in the v2.1.1 doc
> http://docs.sun.com/app/docs/doc/821-0179/create-cluster-1?l=en&a=view
>
> create-cluster:
> Usage: asadmin [asadmin-utility-options] create-cluster
> [--config <config>]
> [--properties <properties>] [--systemproperties
> <systemproperties>]
> [--multicastport <multicastport>]
> [--multicastaddress <multicastaddress>]
> [-?|--help[=<help(default:false)>]]
> cluster_name
>
> Thanks,
> Jennifer
>
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