Keep in mind that if your machine IP address ever changes then any jobs queued 
or running at shutdown won't get picked up on restarting.

Regards
Scott

On 6/08/2012, at 3:06 PM, Sam Hamilton wrote:

> Many thanks Jacques - off to do some testing! 
> 
> Cheers
> Sam
> 
> On 4 Aug 2012, at 00:11, Jacques Le Roux <jacques.le.r...@les7arts.com> wrote:
> 
>> Hi Sam,
>> 
>> I'm not sure to get it but you could use the IP address of each machine, 
>> look into startofbiz.sh:
>> IPADDR=`/sbin/ifconfig eth0 | grep 'inet addr:' | cut -d: -f2 | awk '{ print 
>> $1}'`
>> 
>> From that you could parse (ie remove the dot) and create an unique Id for 
>> each machine
>> 
>> Also Googled for "sh properties file access", found this as 2nd entry in the 
>> SERP 
>> http://shrubbery.mynetgear.net/c/display/W/Reading+Java-style+Properties+Files+with+Shell
>> 
>> HTH
>> 
>> Jacques
>> 
>> 
>> Sam Hamilton wrote:
>>> Hey everyone!
>>> 
>>> This is kinda a weird question but does anyone know a way to auto insert 
>>> the machines hostname in the unique.instanceId variable
>>> in general.properties?
>>> 
>>> I am asking as I am migrating over to AWS and trying to automate the build 
>>> for a whole clustered stack so that if one of the
>>> instances dies the system knows and rebuilds.
>>> 
>>> Something like unique.instanceId=$HOSTNAME but I don't know where to find 
>>> the supported list of variables that a properties file
>>> can have?
>>> 
>>> 
>>> Cheers
>>> Sam 
> 

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