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https://issues.apache.org/jira/browse/UIMA-1133?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jerry Cwiklik updated UIMA-1133:
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Attachment: uimaj-as-jms-UIMA-1133-patch2.txt
uimaj-as-core-UIMA-1133-patch2.txt
uimaj-as-activemq-UIMA-1133-patch2.txt
Modified client API to use the new Timeout logic that uses single timer to time
requests. The timeout is canceled when the oldest reply is received. The timer
is subsequently restarted for the second oldest CAS. The client adds each
outgoing CAS to a list of CASes pending reply to keep track of CASes
outstanding.
> Timeout needs different implementation to eliminate interaction with CAS pool
> size
> ----------------------------------------------------------------------------------
>
> Key: UIMA-1133
> URL: https://issues.apache.org/jira/browse/UIMA-1133
> Project: UIMA
> Issue Type: Improvement
> Components: Async Scaleout
> Reporter: Eddie Epstein
> Assignee: Jerry Cwiklik
> Attachments: uimaj-as-activemq-UIMA-1133-patch2.txt,
> uimaj-as-core-UIMA-1133-patch2.txt, uimaj-as-jms-UIMA-1133-patch2.txt
>
>
> When a timeout value is specified for process calls, a timer is set for each
> processCas request. If an aggregate controller (or client API) sends multiple
> process requests to the same service, the timeout must be increased to
> account for the potential processing delay of the earlier requests. Currently
> the timeout value is static, specified in the deployment descriptor; if a
> user changes the CAS pools size, they may have to change the timeout to
> compensate.
> A better design would decouple these things by changing the implementation of
> timeout. For example, the timeout value could be dynamic, taking into account
> the number of outstanding requests sent by the same client. The new
> implementation should take into account the need to set appropriate
> time-to-live values for the request messages.
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