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From "Jim Challenger (JIRA)" <...@uima.apache.org>
Subject [jira] [Updated] (UIMA-3704) DUCC SM should support timestamps to identify idle services
Date Mon, 05 May 2014 15:20:15 GMT

     [ https://issues.apache.org/jira/browse/UIMA-3704?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Jim Challenger updated UIMA-3704:

    Affects Version/s: 1.1.0-Ducc
        Fix Version/s: 1.1.0-Ducc

> DUCC SM should support timestamps to identify idle services
> -----------------------------------------------------------
>                 Key: UIMA-3704
>                 URL: https://issues.apache.org/jira/browse/UIMA-3704
>             Project: UIMA
>          Issue Type: Improvement
>          Components: DUCC
>    Affects Versions: 1.1.0-Ducc
>            Reporter: Jim Challenger
>            Assignee: Jim Challenger
>            Priority: Minor
>             Fix For: 1.1.0-Ducc
> The Service Manager's ping/monitor protocol should support a mechanism to provide identification
of services that are started and using resources, but which have been idle for a "long time".
 The mechanism should enable identification of idle services and a mechanism to turn off the
services under site policies.
> The proposed mechanism is for the ping/monitors to support a "last use" timestamp which
indicates the last apparent use of the service.  Display mechanisms such as the web server
would use this to identify unused or lightly-used services.  
> The mechanism also should enable ping/monitor support to automatically stop idle services.
 The Service Manager's start-by-reference mechanism is then used to start the service if some
job later needs the service, with the only loss being the time needed to initialize the service.
> The mechanism should also enable the ping/monitor to re-enable the service's persistent
running state if it determines this is needed.
> The proposed mechanism for this second step is to allow the ping/monitor to enable or
disable the service's "autostart" flag.

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