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From "Jim Challenger (JIRA)" <...@uima.apache.org>
Subject [jira] [Closed] (UIMA-3011) DUCC Service Manager - parameterize pingers
Date Mon, 05 Aug 2013 21:08:49 GMT

     [ https://issues.apache.org/jira/browse/UIMA-3011?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jim Challenger closed UIMA-3011.
--------------------------------

    
> DUCC Service Manager - parameterize pingers
> -------------------------------------------
>
>                 Key: UIMA-3011
>                 URL: https://issues.apache.org/jira/browse/UIMA-3011
>             Project: UIMA
>          Issue Type: Improvement
>          Components: DUCC
>            Reporter: Jim Challenger
>            Assignee: Jim Challenger
>             Fix For: 1.0-Ducc
>
>
> Currently SM sets state of a service to "healthy" if any response is received from the
ActiveMq MBean for a queue (as well as if get-meta to the service works), and "unhealthy"
otherwise.  
> Better would be if some reasoning is done on the queue statistics from ActiveMQ.  This
is somewhat subtle as many things need to be taken into consideration to determine if a service
is "healthy".
> For the moment, we will use the single heuristic, "is the queue depth too big" to better
draw attention to *potential* (but maybe not actual) problems and defer more complete analysis
to a later time.

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