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Re: Switching databases almost "runtime" using dhis2 live system tray UI

 

Hi Saptarshi

On 4 March 2010 14:55, Saptarshi Purkayastha <sunbiz@xxxxxxxxx> wrote:
> I love this as well... and from all the comments, the world likes it as
> well!!.. and is fast to swicth databases. Hoots to Bob!!
> I was going to make a patch last nite, but sadly I can't get live to
> work...
> It says the dhis.war is not found at the webapps path?? Does it not need the
> DHIS2_HOME environment var to be already set... and do I need to remove that
> thing??

The dhis live is targeted at the ignorant and you are too wise!  In a
nutshell it does not use DHIS2_HOME (and should ignore it if is there)
and it is designed to use an exploded war in the webapps/dhis
directory (exploding the war was too costly on startup time).  I have
been poor in documenting (partly because few people seemed interested
at the start though I see that is changing) but I think Jason has now
done some outstanding work in packaging and documenting.

Does that help?  I suspect your problem is that there is no exploded
dhis.war in the webapps/dhis directory.  Funny message from jetty
though.  Perhaps it is agnostic about whether it finds a war or a
directory.  But you do have to put it there yourself (though I think
Jason's changes do this as well now).

Regards
Bob

> ---
> Regards,
> Saptarshi PURKAYASTHA
> Director R & D, HISP India
> Health Information Systems Programme
>
> My Tech Blog:  http://sunnytalkstech.blogspot.com
> You Live by CHOICE, Not by CHANCE
>
>
> On 4 March 2010 15:47, Ola Hodne Titlestad <olatitle@xxxxxxxxx> wrote:
>>
>>> PS using Live for modifying hibernate.properties (and thus a low-key
>>> change-of-database as required in SA) and update war file are great ideas,
>>> lets start a new thread for these.
>>
>> Hi,
>>
>> I like this seemingly simple fix to a complex problem. While we could look
>> at more advanced solutions to switching databases runtime at a later stage I
>> think being able to switch between databases using a simple menu in the
>> DHIS2 live system tray will help a lot to system admins and implementers
>> that frequently need to switch databases on their laptops or desktops. If I
>> understand you correctly Lars you suggest that we through the live app UI
>> interaction allow the users to switch database, and in the background that
>> triggers 1) a jetty shutdown + 2) edit/replace hibernate.properties + 3)
>> jetty startup sequence?
>>
>> We could then with a bit more UI interaction through the live app allow
>> the users to register multiple databases and then provide a switch db menu
>> that lists all registered databases?
>> How long does it take to shut down and start up jetty? 1 min? It's not
>> perfect, but simplifies the life of the not-very-technical DHIS2 trainer
>> etc. that needs to work on multiple databases.
>>
>> Ola
>> -----
>>
>>
>>
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>
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