[Ace-users] Re: [tao-users] Event Service and Consumers/Suppliers
markus at ast.dfs.de
Wed Aug 22 08:29:55 CDT 2007
sorry, here the missing information.
TAO VERSION: 1.5
ACE VERSION: 5.5
HOST MACHINE and OPERATING SYSTEM:
2 x Intel(R) Xeon(R) CPU 3.00GHz
Linux 188.8.131.52-0.12-smp #1 SMP i386 GNU/Linux
TARGET MACHINE and OPERATING SYSTEM, if different from HOST:
COMPILER NAME AND VERSION (AND PATCHLEVEL):
gcc version 3.4.3
DOES THE PROBLEM AFFECT:
Event Service and Consumers/Suppliers with persistent IORs
Johnny Willemsen wrote:
> Please use the PRF form, we now don't know which TAO version you are using
> which can influence the answer.
> Johnny Willemsen
> Remedy IT
> Postbus 101
> 2650 AC Berkel en Rodenrijs
> The Netherlands
> www.theaceorb.nl / www.remedy.nl
> *** Integrated compile and test statistics see
> http://scoreboard.theaceorb.nl ***
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> *** See http://www.theaceorb.nl/en/support.html ***
>> I have a question concerning the use of the Event Service in
>> with consumers/suppliers that use persistent IORs.
>> My principal idea was to use consumers/supplier with
>> persistent IORs in
>> order to prevent a multiple registration of a
>> consumer/supplier crashed.
>> When restarted the reregistration results in a lot of exceptions when
>> the Event Service is trying to sent out consumers which not
>> valid anymore.
>> Although the IORs of consumers/suppliers are persistent the Event
>> Service handles them as a registration of a new
>> consumers/suppliers. In
>> case of consumers, this results in receiving all events twice. This
>> proves to me that both IORs are still valid. But for some reason the
>> Event Service does not throw an 'AlreadyRegistered' exception when
>> reregistering after a crash.
>> I worked around this using transient IORs and letting the
>> Event Service
>> monitor broken links. This does very much the same except that the ES
>> needs one exception to notify that the llink is broken.
>> I wonder why my approach using persistent IORs does not work. Has
>> someone similar experience?
>> Kind regards
>> tao-users mailing list
>> tao-users at mail.cse.wustl.edu
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