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From "Jerry Cwiklik (JIRA)" <uima-...@incubator.apache.org>
Subject [jira] Commented: (UIMA-1140) Embedded broker should be eliminated
Date Wed, 01 Oct 2008 14:43:44 GMT

    [ https://issues.apache.org/jira/browse/UIMA-1140?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12636053#action_12636053
] 

Jerry Cwiklik commented on UIMA-1140:
-------------------------------------

Found another problem with dd2spring. Inner aggregate bean with remote delegate is missing
an OutputChannel Bean. This bean is required to send messages to a remote delegate.

   <!--======================================-->
   <!-- Async Aggregate: MeetingDetector_1.2 -->
   <!--======================================-->
   <bean id="asAggr_ctlr_MeetingDetector_1.2"
         class="org.apache.uima.aae.controller.AggregateAnalysisEngineController_impl"
         init-method="initialize">
      <constructor-arg index="0" ref="asAggr_ctlr_TopLevelTaeQueue_1"/>
      <constructor-arg index="1" value="MeetingDetector"/>
      <constructor-arg index="2"
                       value="file:/C:/dev/workspace/apache-uima/uimaj-as-activemq/src/test/resources/descriptors/analysis_engine/../tutorial/ex4/MeetingDetectorAndNoOpTAE.xml"/>
      <constructor-arg index="3" ref="casManager"/>
      <constructor-arg index="4" ref="inProcessCache"/>
      <constructor-arg index="5" ref="delegate_map_MeetingDetector_1.2"/>
      <property name="serviceEndpointName" value="inQ_MeetingDetector_1.2"/>
      <property name="controllerBeanName" value="asAggr_ctlr_MeetingDetector_1.2"/>
      <property name="errorHandlerChain" ref="err_hdlr_chn_MeetingDetector_1.2"/>
      <property name="flowControllerDescriptor"
                value="*importByName:org.apache.uima.flow.FixedFlowController"/>
   </bean>


> Embedded broker should be eliminated
> ------------------------------------
>
>                 Key: UIMA-1140
>                 URL: https://issues.apache.org/jira/browse/UIMA-1140
>             Project: UIMA
>          Issue Type: Improvement
>          Components: Async Scaleout
>            Reporter: Eddie Epstein
>            Assignee: Marshall Schor
>         Attachments: uimaj-as-activemq-UIMA-1140-patch.txt, uimaj-as-core-UIMA-1140-patch.txt,
uimaj-as-jms-UIMA-1140-patch.txt
>
>
> When an async aggregate is deployed, the request/reply queues for colocated delegates
use an embedded broker. After UIMA-1130 is complete, all reply queues for remote delegates
will be located on the same external broker hosting the delegate's request queue. At that
point the function of the colocated broker can be replace with simple Java queues.

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