Re: Scripts and lookup groups

On 4/4/07, Logan, Patrick <[email protected]> wrote:

> The startup scripts in bodega support different protocols. Each
> protocol-specific script hard codes the lookup group names for that
> protocol.
>
> I'd like to be able to start up services for any of those purposes
> each with their own lookup group

I'm assuming you're using the top-level 'jrun' script that
bodega provides for starting things. If that's the case,
have you tried using the '-groups' argument? That argument
is designed to allow one to override the default group names
from the command line; which I think is the sort of thing
you're wanting to do. For example, in 4 separate windows,
you might type the following:

>>> jrun jsk reggie     -mGroups myGroup1 myGroup2
>>> jrun jsk browser  -groups myGroup1
>>> jrun jsk outrigger -groups myGroup1
>>> jrun jsk mahalo   -groups myGroup2

This will start a lookup service having member groups
of 'myGroup1' and 'myGroup2'. The other commands
start a browser, a JavaSpace, and a TransactionManager.
Because the lookup service is a member of both group
'myGroup1' and group 'myGroup2', the browser, the
JavaSpace and the TransactionManager will each discover
that lookup service because the browser and the JavaSpace
will discover 'myGroup1', and the TransactionManager will
discover 'myGroup2'.

Note the '-mGroups' argument for reggie. The '-mGroups '
argument exists so one can also specify a '-groups' argument
for the lookup service as well. Thus, the '-mGroups' argument
specifies which groups the lookup service is a member of
(that is, the groups that clients and services will discover);
whereas the '-groups' argument for the lookup service
specifies which groups of *other lookup services* that this
particular lookup service will attempt to discover and join.

Finally, typing '>>> jrun -help' will display a number of other
options offered by the script.

I hope this helps,
Brian

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