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From "Marshall Schor (JIRA)" <uima-...@incubator.apache.org>
Subject [jira] Commented: (UIMA-1140) Embedded broker should be eliminated
Date Mon, 06 Oct 2008 18:51:44 GMT

    [ https://issues.apache.org/jira/browse/UIMA-1140?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12637174#action_12637174
] 

Marshall Schor commented on UIMA-1140:
--------------------------------------

a review of generated code while revising the test cases revealed that the message handlers
for the aggregate-return case have an extra bean in the chain which should be removed.  It's
the 1st bean:

{noformat}
<bean id="aggregate_return_metaMsgHandler_RoomNumberAnnotatorQueue_1" 
         class="org.apache.uima.aae.handler.input.MetadataRequestHandler_impl">
      <constructor-arg index="0" value="MetadataRequestHandler"/>
      <property name="controller" ref="asAggr_ctlr_RoomNumberAnnotatorQueue_1"/>
      <property name="delegate"
                ref="aggregate_return_processRequestHandler_RoomNumberAnnotatorQueue_1"/>
   </bean>
{noformat}

The reply or return Q has no need of a MetadataRequestHandler.  This been should be removed
from the chain.

> 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-01.txt, uimaj-as-activemq-UIMA-1140-patch-02.txt,
uimaj-as-activemq-UIMA-1140-patch.txt, uimaj-as-core-UIMA-1140-patch-01.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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