[jira] Updated: (GERONIMO-733) Ouput configuration startup times in startup console output

["David Blevins (JIRA)" <de...@geronimo.apache.org>]

     [ http://issues.apache.org/jira/browse/GERONIMO-733?page=all ]

David Blevins updated GERONIMO-733:
-----------------------------------

    Fix Version: 1.0
                     (was: 1.0-M5)

> Ouput configuration startup times in startup console output
> -----------------------------------------------------------
>
>          Key: GERONIMO-733
>          URL: http://issues.apache.org/jira/browse/GERONIMO-733
>      Project: Geronimo
>         Type: Improvement
>   Components: general
>     Reporter: John Sisson
>     Priority: Minor
>      Fix For: 1.0

>
> Before this idea is forgotten, I have raised this issue with the following text taken from the dev list mail thread "Re: New Startup Output, Mark 2":
> On Fri, 8 Jul 2005, Geir Magnusson Jr. wrote:
> > > At the risk of showing words in your mouth, are you suggesting it
> > > would just be nice to see how long it took to start each component?
> > 
> > Exactly. It would just give people a reference as to what got done at  
> > each additional delta of the progress bar...
> This should be easy for someone to implement.  Let me explain:
>  - The code is in the system module
>  - The class that starts the server is Daemon.
>  - Daemon uses a helper class that implements StartupMonitor and calls
>    the appropriate methods on that as things happen during the startup
>    sequence.  The helper class is responsible for nearly all output from
>    the startup classes themselves.
>  - The progress bar is implemented in ProgressBarStartupMonitor
>  - The non-pb is implemented in SilentStartupMonitor
> 		 So, if you want additional output in a non-progress-bar case (such 
> as with DEBUG or INFO output enabled), you can either add code to 
> SilentStartupMonitor or add a new implementation of StartupMonitor and 
> instantiate that instead of SilentStartupMonitor in the "-v" and "-vv" 
> cases (leaving SilentStartupMonitor for the "-quiet" case).
> 		 The startup monitor is called every time a configuration is 
> loading, loaded, starting, and started.  Note there are only a handful of 
> configurations (5-10, usually), you do not get a call for every GBean 
> loaded or something like that.  Anyway, if you want to know how long it 
> takes each configuration to be loaded and started, just call 
> System.currentTimeMillis here and there and keep some statistics.
> 		 I would recommend that you save any such output to the end for the 
> case where DEBUG or INFO output is enabled, since it would otherwise be 
> lost among all the initial output.  But if you save the stats along the 
> way, the final output could look something like this:
> 10:51:28,745 INFO  [Daemon] Server startup completed
> 10:51:28,745 INFO  [MyMonitor] 3s to start org/apache/geronimo/System
> 10:51:28,745 INFO  [MyMonitor] 5s to start org/apache/geronimo/Server
> 10:51:28,745 INFO  [MyMonitor] 2s to start org/apache/geronimo/Deployer
> ...
> 		 Finally, I don't think it's a good idea to add something like this
> to the progress bar.  The progress bar is very clean by design, and I
> don't think more specific statistics would be helpful to the typical user.  
> The server developers are more likely to be interested in finer-grained
> information (and more likely to want more detailed log output as well), so
> I'd prefer this kind of thing get added to the "-v" or "-vv" startup
> options instead.

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