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Data service samples and tomcat5.5

Avatar

Level 1
hi,

i 'd tried the samples coming with flex Data services 2 on a
tomcat 5.5 server under jre 1.4.2_10.

Messaging sample dashboard is performing well with both
browsers open and the chat is ok.

RPC services database Manager works fine and sql interogation
return correct value from the database in the datagrid.

But ... I get a "channel disconnected" error message window
when i run data services samples CRM and FlexCab.

i don't know why because it seems that my_rtmp is working
fine with the dashboard...???

Could you give me an explanation on what's doing wrong?


0 Replies

Avatar

Level 2
Sorry, there is not enough information to tell you what the
issue is without additional information.



To obtain additional infomration, try enabling logging at the
debug level in /WEB-INF/flex/services-config.xml



After that restart your server and check the server logs and
our server console for any errors.



Also, please be sure that you've installed FDS on Tomcat as
documented -


http://www.adobe.com/support/documentation/en/flex/2/install.html#tomcat



And, you may also check out this tech note which includes an
issue commonly encountered by users of FDS and Tomcat -
http://www.adobe.com/cfusion/knowledgebase/index.cfm?id=6b82874f

Avatar

Employee
Did you install JOTM. This is described in the
install
instructions
. That's the only thing I can think of.

Avatar

Level 1
First of all thanks to both.

I though JOTM was installed on my tomcat but no


so thanks giving me the idea to verify and of course

installing JOTM.

Things goes better now and i could launch the crm and flexcab
samples

without the message "channel disconnected":

But ... now i get the following message "Unable to access
UserTransaction in DataService"

following your links cathyM i applied all the recommendation
given in these topics but it's steel not working

even this one


http://static.raibledesigns.com/downloads/howto-tomcat-jotm.htmlt



searching more deaper i discovered this one


http://www.nabble.com/UserTransaction%2C-JOTM-and-Tomcat-5.5.x-tf1073172r5.html



It seems that there is some problems with tomcat 5.5 and JOTM

I discovered another message with the crm and flexcab samples
telling me "attempt to begin a dataService Transaction when an
existing transaction was already in place".

As indicated in the last reply of the post, HSQLDB doesn't
seem to support nested transactions.



So thanks again for your help but it seems very hard to run
flex 2 data services on tomcat 5.5 (may be it's better with another
DB) and if you know someone who know the answers to all these
misfunctionalities i'm all ears.

thanks


Avatar

Level 2
> now i get the following message "Unable to access
UserTransaction in DataService"



Did you successfully run the test jsp page indicated in the
tech note?



The samples installed on Tomcat, based on the instructions,
have been tested to run successfully on Tomcat 5.5. You should be
able to successfully run the samples.



> I discovered another message with the crm and flexcab
samples telling me "attempt to begin a dataService Transaction when
an existing transaction was already in place".



Does this mean that you resolve the UserTransaction issue? If
you resolve the user transaction issue and still see the error,
please let us know the step you performed when using the samples to
reproduce this issue.



Thanks.

Avatar

Level 1
hi,

no i didn't perform with success the jsp page of the dbtest
with hsqldb.

as they explain on starting page of the jsp.

This page contains scriplets to create an HSQL Database. It
was initially just used for testing JOTM on HSQLDB. HSQLDB doesn't
support nested transactions so this particular sample doesn't work.

As explain in the second post i send u it seems tomcat5.5.x
as problem with User transaction.

"Could u give me the versions use for tomcat and JOTM you
used to test the samples?



these are the following manipulations i try to do:

i used META-INF/context.xml simplified to:

> <Context>

>

> <Resource name="jdbc/CRM" auth="Container"
type="javax.sql.DataSource"

> factory="org.objectweb.jndi.DataSourceFactory"

> driverClassName="org.hsqldb.jdbcDriver"

> username="sa" password=""

> url="jdbc:hsqldb:."/>

>

> <Transaction
factory="org.objectweb.jotm.UserTransactionFactory"

> jotm.timeout="60"/>

>

> </Context>

just changing the myDB with CRM

All the JOTM's jars file are in samples WEB_INF/lib directory
as well as the hsqldb.jar JDBC driver

i put the context.xml file in the samples META-INF directory

and the carol.properties in the samples WEB_INF/classes

all done as explain in the dbtest installation.

but this never resolves the UserTransaction problem.



Seems all these version doesn't perform very well together if
u don't have the chance to find the good kit LOLLL



"attempt to begin a dataService Transaction when an existing
transaction was already in place" arrive when i get the
UserTransaction failure message and click OK and when i retry to
add a company or an employee again.



thanks for u'r help

Avatar

Level 2
> no i didn't perform with success the jsp page of the
dbtest with hsqldb.



I'm sorry I wasn't explicit. Please use the following test
jsp included in the Tech Note.


http://www.adobe.com/cfusion/knowledgebase/index.cfm?id=6b82874f



<%@ page import="javax.naming.*,javax.transaction.*" %>

<%

Context ctx = new InitialContext();

UserTransaction tx =
(UserTransaction)ctx.lookup("java:comp/UserTransaction");

tx.begin();

tx.commit();

%>

success!



> "Could u give me the versions use for tomcat and JOTM
you used to test the samples?

These steps are based on the latest version of Tomcat
(5.5.17) and JOTM (2.0.10).



It is not necessary to setup any datasources nor is it
necessary to run the dbtest.jsp.

Avatar

Level 1
OKKK cathyM all is working now


what i done? just changing my old jre 1.4.2_10 with the new
one coming with J2EE sdk5.

After all reinstalled tomcat 5.5_20 and flex2 dataservices
and following the ADOBE installation notes + JOTM installation
guide in
http://static.raibledesigns.com/downloads/howto-tomcat-jotm.htmlt
and that's all folk.

I think may be u need to add in your installation note the
carol.properties files how to.

thanks, this was only a bad version of jre: i had not the
good kit LOL

Avatar

Level 2
I'm glad that this is finally working for you.



I've just verified again that the instructions for FDS 2 are
valid and complete.

>
http://www.adobe.com/support/documentation/en/flex/2/install.html#tomcat



> I think may be u need to add in your installation note
the carol.properties files how to.

I did not find this necessary to run the samples.

Avatar

Level 1
Hi All,



I would like to learn more about the FlexCab sample.



I am not familiar with it, can find no references for
"FlexCab" in the docs and googling FlexCab turns up only this forum
thread.



Perhaps FlexCab is short for ____ ? Or perhaps you can
provide a link in the docs or Devnet?



Thanks,



g

Avatar

Employee
Flexcab is a sample application in the samples.war. Look in
\samples\dataservice\flexcab



HTH

Avatar

Level 2

I had the oringinal error message ( "Unable to access UserTransaction in DataService" ) with flex.samples.crm and JOTM, but using tomcat 6.0.16 with a virtual directory.

...And reading this post gave me the idea of a JOTM was not installed...but I was using LiveCycle 3 ES 3 Beta 3 with integrated server (where JOTM is already installed)...

My issue was obviously different becuase I was using docBase in my conf/localhost/<SITE_CONTEXT>.xml

....But tomcat still did not 'see' JOTM installed even though the jotm files are already installed (as part of the installation in ..tomcat/libs) - but if using docBase you need to copy the jotm file into the <SITE_CONTEXT>/WEB-INF/libs/ directory.

I mention it here now, after all this time because someone might find it usefull...and save some hair pulling.

Hindsight in a fabulous thing