Re: Connection Refused Exceptions

Vinod Johnson - Sun Microsystems wrote:
>>
>> I'm using the JoinManager and cover both of the cases you describe.  I
>> use a ServiceIDRecorder for registering the first service registration
>> or if I have one persisted to disk, I will use that instead.  To do this
>> I use the two constructors like so:
>>
>> if(serviceIdSet) {
>>     joinManager = new
>> JoinManager(serviceProxy,entries,serviceID,discoveryManagement,leaseRenewalManager);
>>
>>
>> } else {
>>     joinManager = new JoinManager(serviceProxy,entries,new
>> ServiceIdRecorder(),discoveryManagement,leaseRenewalManager);
>>         }
> I'll ask the obvious, but are you quite confident that your service id
> record/playback is functioning correctly? A perhaps unlikely edge case -
> is there any chance that your service gets shutdown before
> ServiceIdRecorder has been notified/completed? I'd imagine that if it is
> a case of old registrations lying around, your service browser could at
> times show more services than you expect.
>

Thanks for the suggestion though I can't see how it could be the case
with the code we've got.  Firstly the problem (ConnectException:
connection refused to host) occurs with services that have already
recorded their serviceId.  Secondly if this situation did arise the
restarted service would have a different serviceId and would not be
renewing leases on the lookup service.  This would lead to the system
cleaning itself up after the lease expiration.



--
Rick Moynihan
Software Engineer
Calico Jack LTD
http://www.calicojack.co.uk/

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