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From "Jerry Cwiklik (JIRA)" <uima-...@incubator.apache.org>
Subject [jira] Updated: (UIMA-1140) Embedded broker should be eliminated
Date Mon, 06 Oct 2008 14:37:44 GMT

     [ https://issues.apache.org/jira/browse/UIMA-1140?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jerry Cwiklik updated UIMA-1140:
--------------------------------

    Attachment: uimaj-as-core-UIMA-1140-patch-01.txt
                uimaj-as-activemq-UIMA-1140-patch-02.txt
                uimaj-as-activemq-UIMA-1140-patch-01.txt

Enabled default messaging between colocated components using java queues. Removed conditional
'UseVmTransport'. Enabled support for setting number of listener threads on both input and
output queues for colocated components. Modified reply JMS connection to broker to always
send messages asynchronously. Optimized JmsOutputChannel.java to set the Host IP once in the
constructor, instead of computing it for every outgoing message. Profiler indicates that computing
the Host IP is quite costly. Modified global boolean flags to be volatile to make sure that
the changes made are immediately visible to other threads.

> 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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