Shreedhar Ganapathy schrieb:
> Hi Michael
> Excellent suggestion! One that Mo and I have been talking about making
> System Advertisement or an equivalent, a first class citizen of the
> GMS client api.
> Could you file an RFE for us on this in the Issue Tracker?
done
https://shoal.dev.java.net/issues/show_bug.cgi?id=44
thanks,
-michael
> The SystemAdvertisement supports adding custom values at time of join
> that tend to remain static through the lifetime of the member.
> Cheers
> Shreedhar :)
>
> Michael Bien wrote:
>> Hello,
>>
>> JXTA stores in the system advertisement a lot of useful and never
>> changing information about the node's runtime environment. It would
>> be great if Shoal would provide this kind of immutable "node info"
>> additional to the mutable "node details" (DistributedStateCache).
>>
>> I use currently the DSC for this purpose:
>>
>> updateNodeDetail(NodeDetailKeys.CPU_COUNT,
>> Runtime.getRuntime().availableProcessors());
>> updateNodeDetail(NodeDetailKeys.OS_ARCH,
>> System.getProperty("os.arch"));
>> updateNodeDetail(NodeDetailKeys.MAX_MEMORY,
>> Runtime.getRuntime().maxMemory() / 1000000);
>> updateNodeDetail(NodeDetailKeys.JVM,
>> System.getProperty("java.vm.name"));
>> updateNodeDetail(NodeDetailKeys.JAVA_VERSION,
>> System.getProperty("java.version"));
>> updateNodeDetail(NodeDetailKeys.OS_NAME,
>> System.getProperty("os.name"));
>> updateNodeDetail(NodeDetailKeys.OS_VERSION,
>> System.getProperty("os.version"));
>> ...
>>
>> public void updateNodeDetail(Serializable key, Serializable value)
>> throws GMSException {
>> gms.updateMemberDetails(nodeName, key, value);
>> }
>>
>> This works but feels a little bit redundant, leads to (probably)
>> unnecessary communication and the values are not guaranteed to arrive
>> at the same time (could cause problems).
>>
>> public API changes:
>> -node info getter in the GMS
>> -node info getter in Signal
>>
>> optional (but cool):
>> allow custom values on node join (add properties with unknown keys to
>> the node info?)
>>
>>
>> (just a thought)
>>
>> best regards,
>>
>> michael
>>
>>
>>
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