just a thought, you can use a schedule service to export entities like is done by webtools.
this gives you your data that has been added.
a timed service or cron job can run a svn update for your local svn.
this gives you versoning, as well a reload abiliity, if necessary


So your documentation of using the entityengine.xml and Ant for tenant says that the whole tenant systems has to be shutdown, every time you add a tenant. i can see that for a intranet type of website, but not for and internet type of website. For an internet type you would have to have scheduled maintainence, which mean the new client has to wait, or daily maintainence that means the other tenants are interrupted a lot.

I have not looked at the code, but I don't think that those loaded from the entityengine.xml for tenants are access by the tenant code, since it is not loaded into the cache for the entity TenantDataSource.
Have you run the setup you documented?



=========================
BJ Freeman
Strategic Power Office with Supplier Automation  
<http://www.businessesnetwork.com/automation/viewforum.php?f=52>
Specialtymarket.com  <http://www.specialtymarket.com/>
Systems Integrator-- Glad to Assist

Chat  Y! messenger: bjfr33man

Carsten Schinzer sent the following on 10/22/2010 6:39 AM:


Hm seems like I'm a console freak then ;-)

I prefer controlled initial dataloads from a repository (to have version
history). And I do a lot of catalogue management actually using XSLT and XML
loads / uploads.

Well, too much operations minded from may day-job I guess.

Thanks for the hint. Maybe also something that needs to be added to the wiki
page?

Regards


Carsten


2010/10/22 BJ Freeman<bjf...@free-man.net>

the concept I went with  more self service.
DB assignment in the TenantDataSource is created in a setup from the Base
(default) DB. A script is run that actually creates the DB based on the
System setup, then added to the TenantDataSource. At this point the script
is not configurable and has to be modified based on how the provider has
their DB server set up.

The Seed data is loaded on the fly, not using Ant.
they are then switched to their DB
they are then sent to setup to build their system.
This includes providing images for logos and other parameters to make their
Themes, and that is loaded on the fly into their DB. this is similar to the
products Images but instead creates a theme for this tenant.

Based on the above the Tenant DB is stored in the TenantDataSource DB,
instead of the entityengine.xml, as it was originally designed to do. So no
restart of ofbiz is necessary.

the ant configuration, in my opinion should only be used to setup the basic
Tenant system.

=========================
BJ Freeman

Strategic Power Office with Supplier Automation<
http://www.businessesnetwork.com/automation/viewforum.php?f=52>
Specialtymarket.com<http://www.specialtymarket.com/>
Systems Integrator-- Glad to Assist

Chat  Y! messenger: bjfr33man


Carsten Schinzer sent the following on 10/22/2010 12:30 AM:

  All,


I've done some extended research and have played around with the
configuration. I have taken the liberty to add my findings in a section on
Multitenant Configuraiton at:
https://cwiki.apache.org/confluence/display/OFBIZ/Multitenancy+support

Please review and let me know your comments if there are any.
I guess with this we can close the issue and make life easier for the next
multitenant users.

Regards


Carsten

2010/10/21 Scott Gray<scott.g...@hotwaxmedia.com>

  I really don't know much about the multi tenant functionality, it's new
and
I haven't used it.  But yeah you do need that tenant group mapped to a
datasource, it contains a set of tables that are needed in addition to
the
separate tenant databases (I think).

Regards
Scott

On 21/10/2010, at 11:57 PM, Carsten Schinzer wrote:

  Well, so possibly a mistake in the documents as the multitenant

datasources

would be defined in the config file placed on data/... (as mentioned

above).

Using your aproach, I would be using the entityengine.xml to define any
datasource required?

Then for data loading: How do I address a certain datasource?

I had the idea to use defined readers like e.g.
    <entity-data-reader name="ext-tenant1"/>

and define those readers only for the respective data sources.

Does that make sense?
Thanks for the tip!
I'll play around a little with this idea.

Just one last question: What is the dedicated TenantDatasources.xml file
then used for at all? To map the datasource to the respective tenant

logins?

Because irritatingly, this file also references jdbcUri, jdbcUsername
and
jdbcPassword. But all that I would have specified in entityengine.xml as
well.

Well, it looks like I'd update some documents once I found my way
through
this. Stay tuned :)

Regards


Carsten


2010/10/21 Scott Gray<scott.g...@hotwaxmedia.com>

  OOTB in 10.04 the delegator definition looks like this:
    <delegator name="default" entity-model-reader="main"
entity-group-reader="main" entity-eca-reader="main"
distributed-cache-clear-enabled="false">
        <group-map group-name="org.ofbiz" datasource-name="localderby"/>
        <group-map group-name="org.ofbiz.olap"
datasource-name="localderbyolap"/>
        <group-map group-name="org.ofbiz.tenant"
datasource-name="localderbytenant"/>
   </delegator>

Your one appears to be missing the last group-map for org.ofbiz.tenant

and

I'm guessing that is the problem.  I have no idea why you and BJ were
missing that entry though, it was there before 10.04 existed.

Regards
Scott

HotWax Media
http://www.hotwaxmedia.com

On 21/10/2010, at 9:42 PM, Carsten Schinzer wrote:

  Hi Scott,


well, I digged out this old thread as the very same seemed happening
to

BJ

as well. Here's a little context:

I am aiming at multitenant along with PostGreSQL database, i.e. I have
created the DB for each tenant.

I changed entityengine.xml to use the localpostnew DataSource in the

default

delegator:
   <delegator name="default" entity-model-reader="main"
entity-group-reader="main" entity-eca-reader="main"
distributed-cache-clear-enabled="false">
       <group-map group-name="org.ofbiz"

datasource-name="localpostnew"/>

       <group-map group-name="org.ofbiz.olap"
datasource-name="localderbyolap"/>
   </delegator>

of course localpostnew is updated with connection string info as usual

and

the respective postgres drivers are placed in

   {ofbiz-home}\framework\entity\lib\jdbc

Now the multitenant info, i.e. the datasource setup for each Tenant's
database, went to the xml file in
   {ofbiz-home}\framework\entity\data\TenantDataSources.xml
(the filename is different and is updated accordingly in
{ofbiz-home}\framework\entity\ofbiz-component.xml

If I choose the localderby datasource, everything goes just nice and

the

databases are generated, data loaded etc.

If I change to the above configuration, i.e. using localpostnew, ofbiz
throws an exception as follows
*
COMMAND ISSUED:*
D:\__eclipse\ofbiz-multitenant>java -Xmx512m -XX:MaxPermSize=128m -jar
ofbiz.jar -install -readers=seed-initial -delegator=default

*CONSOLE OUTPUT:*
Set OFBIZ_HOME to - D:/__eclipse/ofbiz-multitenant
(...)
2010-10-20 18:28:34,283 (main) [        ModelReader.java:389:INFO ]

FINISHED

LOADING ENTITIES - ALL FILES; #Entities=849 #ViewEntities=267

#Fields=8870

#Relationships=2925 #AutoRelationships=2157
2010-10-20 18:28:34,392 (main) [   GenericDelegator.java:244:INFO ]

Doing

entity definition check...
2010-10-20 18:28:34,408 (main) [ ModelEntityChecker.java:502:INFO ]
[initReservedWords] array length=1023
Exception in thread "main" java.lang.NullPointerException
       at


org.ofbiz.entity.GenericDelegator.getEntityFieldType(GenericDelegator.java:555)

       at


org.ofbiz.entity.model.ModelEntityChecker.checkEntities(ModelEntityChecker.java:101)

       at
org.ofbiz.entity.GenericDelegator.<init>(GenericDelegator.java:245)
       at


org.ofbiz.entity.DelegatorFactoryImpl.getInstance(DelegatorFactoryImpl.java:33)

       at


org.ofbiz.entity.DelegatorFactoryImpl.getInstance(DelegatorFactoryImpl.java:25)

       at

org.ofbiz.base.util.UtilObject.getObjectFromFactory(UtilObject.java:202)

       at

org.ofbiz.entity.DelegatorFactory.getDelegator(DelegatorFactory.java:47)

       at


org.ofbiz.entityext.data.EntityDataLoadContainer.start(EntityDataLoadContainer.java:230)

       at

org.ofbiz.base.container.ContainerLoader.start(ContainerLoader.java:100)

       at org.ofbiz.base.start.Start.startStartLoaders(Start.java:272)
       at org.ofbiz.base.start.Start.startServer(Start.java:322)
       at org.ofbiz.base.start.Start.start(Start.java:326)
       at org.ofbiz.base.start.Start.main(Start.java:411)
2010-10-20 18:28:34,627 (OFBiz_Shutdown_Hook) [
ContainerLoader.java:113:INFO ] Shutting down containers


I would like to understand the following:

  - what is going wrong? OFBIZ seems to have issues with the
  entityfieldtypes for postnew. This is not observed for single tenant

OFBIZ

  setups -- or no-one out there is using single instances on postgres

with

  release 10.04 or later.
  - how can I dig deeper into the issue? Reviewing the classes I do see
  sporadic log statement which I do not find back on the console,
hence:

where

  can I switch log levels for a component or the entire ofbiz instance?

Hint for any of these two are much appreciated.
And thanks for focussing back on the topic :-)

Regards


Carsten



2010/10/21 Scott Gray<scott.g...@hotwaxmedia.com>

  Sorry my bad.

Could you explain what changes you've made to the entityengine.xml

that

got

you to the point of something not working?

Thanks
Scott

HotWax Media
http://www.hotwaxmedia.com

On 21/10/2010, at 6:04 PM, Carsten Schinzer wrote:

  Hmmm. Again this has gone off towards debugging/logging (just like

the

older

thread from June).

Anyone with proposals on how to include the Tenant datasources into
entityengine.xml as BJ indicated he had found a workaround for this

issue

that involves this? BJ?

Thanks


Carsten

2010/10/21 David E Jones<d...@me.com>


On Oct 20, 2010, at 4:39 PM, Scott Gray wrote:

  On 21/10/2010, at 10:39 AM, James McGill wrote:

  On Mon, Jun 14, 2010 at 11:08 AM, BJ Freeman<bjf...@free-man.net


  wrote:


  Not sure why it worked in derby mode but not in postgresql.
but it hung up on the tenant entity.
but adding the tenant stuff into the entityengine.xml it no

longer

errors.

I am such a slouch I used one line of debug.loginfo to find the

problem.

someday I will put energy into the remote debugging.
:D


I find remote debugging is extremely easy, using Eclipse.  If
only

there

was

a way to step into minilang services -- they make remote debugging

pretty

frustrating, especially if you want to breakpoint an ECA.


You can cheat a little sometimes with that.  I regularly drop in

this:

<log level="always" message="${someVar}"/>
<transaction-rollback/>

Obviously not as good as breakpoints but you can move it around
and

just

keep refreshing the browser to continually execute the method and

never

commit the changes.

Actually, IMO, when you don't have to worry about compile/run
cycles

I

like

logging better than break points and variable inspection. It

requires

a

little more typing, but a LOT less clicking and watching and

browsing

through data. In fact, IMO logging is faster when you don't have to

worry

about compilation making things intolerably slow. It's kind of like
command-line versus a purely graphical way of doing things.

Of course, to each their own... most programmers can't seem to

handle

something that they aren't used and/or wasn't their idea... ;)

-David




--

Best

Carsten Schinzer

Waisenhausstr. 53a
80637 München
Germany





--

Best

Carsten Schinzer

Waisenhausstr. 53a
80637 München
Germany





--

Best

Carsten Schinzer

Waisenhausstr. 53a
80637 München
Germany









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