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https://issues.apache.org/jira/browse/UIMA-1140?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12636142#action_12636142
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Jerry Cwiklik commented on UIMA-1140:
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Another problem with dd2spring. A message handler chain for an aggregate does
not contain handler for processing requests coming from a remote delegate Cas
Multiplier. When a CM receives an input CAS, it generates new CASes from it.
These new CASes are sent to the client (aggregate) in a *Request* message. An
InputChannel for handling messages from a remote Cas Multiplier must include
the following handlers:
1) ProcessResponse Handler - processing Process reply msgs from the remote (
Needed for both Remote CM and Non-CM). This handler handles Input CASes
returned from the delegate
2) ProcessRequest Handler - processing requests msgs from the remote (Only for
Remote Cas Multipliers). This handler handles *New* CASes sent by the remote
delegate CM.
3) GetMetaResponse Handler - processing GetMete reply msgs from the remote (
Needed for both Remote CM and Non-CM)
Currently only 1 and 3 are added by dd2spring. Need #2 as well.
> 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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