How to resolve the datasource with Cloudspace database?

Question

Hi,
I am running WebLogic 6.1 on Win2k and I have problem with
Cloudscape database in Default Admin Server.
=== Start init method in myJDBCReadServlet.java ===
Init Error: javax.naming.NameNotFoundException:
Unable to resolve MyJDBCDataSource.
Resolved: '' Unresolved:'MyJDBCDataSource' ; remaining name ''
=== Finish init method in myJDBCReadServlet.java ===
1. I created simple table in the Cloudscape database using IJ utility and inserted
some values:
prompt>java -classpath %CLASSPATH%;..\lib\tools.jar COM.cloudscape.tools.ij
ij version 3.5 (c) 1997-2000 Informix Software, Inc.
ij> CONNECT 'jdbc:cloudscape:demo;create=true';
WARNING 01J01: Database 'demo' not created, connection made to existing database
instead.
ij> SHOW CONNECTIONS;
CONNECTION0* - jdbc:cloudscape:demo;create=true
* = current connection
ij> CREATE TABLE employee(name CHAR(25), location CHAR(20), id INTEGER);
0 rows inserted/updated/deleted
2. I created Connection Pool and Data Source using Default Console
The Connection Pool configuration is the following:
Name : MyJDBC Connection Pool
URL : jdbc:cloudscape:demo
Driver Classname: COM.cloudscape.core.JDBCDriver
Properties : user=none password=none server=none
My Data Source configuration is the following:
Name : MyJDBC Data Source
JNDI Name: MyJDBCDataSource
Pool Name: MyJDBC Connection Pool
I added the following line to myserver startup script to point
to the database location:
-Dcloudscape.system.home=./samples/eval/cloudscape/data
3. I wrote the servlet and here is the piece of the myJDBCReadServlet
code which generated the exception:
public void init()
System.out.println("=== Start init method in myJDBCReadServlet.java ===");
try {
ctx = new InitialContext();
ds = (javax.sql.DataSource) ctx.lookup ("MyJDBCDataSource");
} catch (Exception E) {
System.out.println("Init Error: " + E);
System.out.println("=== Finish init method in myJDBCReadServlet.java ===");
Why it cannot find the database using JNDI name?
Any help will be greatly appreciated,
Jacob Nikom

Answer 1

Great.
Here is a link where you can find more cloudscape details:
http://www.cloudscape.com/docs/doc_36/doc/html/coredocs/docs2.htm
S.
"jacob nikom" <[email protected]> wrote in message
news:[email protected]...
>
Problem solved!
Slava - thank you for your help.
Yes, cloudscape.jar file should be on the CLASSPATH.
I also put tools.jar from the same directory (I am not sure
is it necessary or not, but I did not test it).
However,it is not enough to run WebLogic with Cloudscape
successfuly. You have to tell WebLogic where the database
files are. To do it you have to include start-up option
in the startWebLogic.cmd file.
It looks like:
-Dcloudscape.system.home="C:~\samples\eval\cloudscape\data"
After that it runs. Actually, the file cloudscape.html in the
directory ~\samples\eval\cloudscape has quite a bit of information.
Unfortunately, it is difficult to comprehend it until you understand whatthe
problem is.
Regards,
Jacob
"Slava Imeshev" <[email protected]> wrote:
Hi Jacob,
You need to specify the Cloudscape classes in your
CLASSPATH, which exists in weblogic/samples/eval/cloudscape/lib.
Regards,
Slava Imeshev
"jacob nikom" <[email protected]> wrote in message
news:[email protected]...
Hi Slava,
This is the source of the error:
<Error> <JDBC>
<Cannot startup connection pool "MyJDBC_Connection_Pool"
Cannot load driver class: COM.cloudscape.core.JDBCDriver>
but I don't know how to fix it.
I don't know the name of the Cloudscape JDBC driver.
I looked at cloudscape.jar file and found the following class file:
COM/cloudscape/core/JDBCDriver.class
Is it the right driver?
I tried to use COM.cloudscape.core.XADataSource driver
classname, but got the same problem - WebLogic cannot find it.
Which .jar file has correct Cloudscape JDBC driver?
What else should I do to ensure that driver loads properly?
Thank you,
Jacob Nikom
"Slava Imeshev" <[email protected]> wrote:
Ok. I don't see that neither connection pool nor data source
trying to start. You did not added targets to them or may be
you provided wrong target.
S.
"jacob nikom" <[email protected]> wrote in message
news:[email protected]...
Hi Slava,
Thank you for your response. I am sending you the full
log as .txt file attachment. It is not very large in order
to zip it.
I added some Cloudscape parameters to the startup script,
so you can see them there. They show to the WebLogic where
the database is located.
Also, I think the database was running because I could see
my tables using IJ utility (Cloudscape tool), however I am
not sure how Cloudscape exactly starts and runs.
Regards,
Jacob Nikom
"Slava Imeshev" <[email protected]> wrote:
Could you zip the whole log and send it to me?
I just want to see what the console says about
creation of your datasources and pools.
Regards,
Slava Imeshev
"jacob nikom" <[email protected]> wrote in message
news:[email protected]...
Hi Slava,
This is the output with Stdout severity threshold = "info".
I only split a couple of very long lines.
<Oct 2, 2001 6:29:33 PM EDT> <Info> <HTTP>
<[WebAppServletContext(5891807,myJDBCReadServlet,/myJDBCReadServlet)]
myJDBCReadServlet:
init>
=== Start init method in myJDBCReadServlet.java ===
Init Error: javax.naming.NameNotFoundException: Unable to resolveMyJDBC_Data_Source.
Resolved: '' Unresolved:'MyJDBC_Data_Source' ; remaining name
=== Finish init method in myJDBCReadServlet.java ===
=== Start service method in myJDBCReadServlet.java ===
Service Error: java.lang.NullPointerException
=== Finish service method in myJDBCReadServlet.java ===
"jacob nikom" <[email protected]> wrote:
Hi Slava,
Thank you very much for your response.
I followed your advice and changed the names
of my ConnectionPool and DataSource, removing
all spaces. Now they are MyJDBC_Data_Source and
MyJDBC_Connection_Pool (is underscore OK?).
I think I turned on the message level on "info" few days ago.
Could you remind me how to check it?
I am sending you the full log of my session starting
from the beginning up to the crush:
prompt>"C:\WebLogic61\jdk131\bin\java" -hotspot -ms64m -mx64m
-classpath
.;.\lib\weblogic_sp.jar;.\lib\weblogic.jar;.\lib\cos.jar
-Dweblogic.Domain=mydomain -Dweblogic.Name=myserver
"-Dbea.home=C:\WebLogic61"
-Dcloudscape.system.home="C:\WebLogic61\wlserver6.1\samples\eval\cloudsc
a
p
e
\data"
>
-Dweblogic.management.password= -Dweblogic.ProductionModeEnabled=false
>
"-Djava.security.policy==C:\WebLogic61\wlserver6.1/lib/weblogic.policy"
weblogic.Server
<Oct 2, 2001 5:21:57 PM EDT> <Info> <Security> <Getting bootpassword
from user.>
Enter password to boot WebLogic server:
Starting WebLogic Server ....
<Oct 2, 2001 5:22:02 PM EDT> <Notice> <Management> <Loadingconfiguration
file
.\config\mydomain\config.xml ...>
<Oct 2, 2001 5:22:07 PM EDT> <Notice> <WebLogicServer> <StartingWebLogic
Admin
Server "myserver" for domain "mydomain">
<Oct 2, 2001 5:22:10 PM EDT> <Notice> <Management> <Starting
discovery
of Managed
Server...
This feature is on by default, you may turn this off bypassing -Dweblogic.management.discover=false>
<Oct 2, 2001 5:22:17 PM EDT> <Notice> <Management> <Application
Poller
started
for development server.>
<Oct 2, 2001 5:22:17 PM EDT> <Notice> <WebLogicServer><SSLListenThread
listening
on port 7002>
<Oct 2, 2001 5:22:17 PM EDT> <Notice> <WebLogicServer>
<ListenThread
listening
on port 7001>
<Oct 2, 2001 5:22:18 PM EDT> <Notice> <WebLogicServer> <StartedWebLogic
Admin
Server "myserver" for
domain "mydomain" running in Development Mode>
=== Start init method in myJDBCReadServlet.java ===
Init Error: javax.naming.NameNotFoundException: Unable to
resolve
MyJDBC_Data_Source.
Resolved: '' Unresolved:'MyJDBC_Data_Source' ; remaining name
=== Finish init method in myJDBCReadServlet.java ===
=== Start service method in myJDBCReadServlet.java ===
Service Error: java.lang.NullPointerException
"Slava Imeshev" <[email protected]> wrote:
Jacob,
Just FYI, DataSource or ConnectionPool name can not
contain spaces. Change the names and let me know if it helps.
Regards,
Slava Imeshev
"jacob nikom" <[email protected]> wrote in message
news:[email protected]...
Hi Slava,
Thank you for your message. I did assign target to
my Connection Pool and Data Source. It is "myserver".
Also, there is not any error messages form WebLogic
shell except the ones which I place in my message.
So far the misery remains unresolved.
Regards,
Jacob Nikom
"Slava Imeshev" <[email protected]> wrote:
Hi Jacob,
Make sure you assigned targets to the connection pool and
data
source.
Also
check Weblogic shell console for errors.
Regards,
Slava Imeshev
"jacob nikom" <[email protected]> wrote in message
news:[email protected]...
Hi,
I am running WebLogic 6.1 on Win2k and I have problem
with
Cloudscape database in Default Admin Server.
=== Start init method in myJDBCReadServlet.java ===
Init Error: javax.naming.NameNotFoundException:
Unable to resolve MyJDBCDataSource.
Resolved: '' Unresolved:'MyJDBCDataSource' ; remainingname
=== Finish init method in myJDBCReadServlet.java ===
1. I created simple table in the Cloudscape database using
IJ
utility
and
inserted
some values:
prompt>java -classpath %CLASSPATH%;..\lib\tools.jarCOM.cloudscape.tools.ij
ij version 3.5 (c) 1997-2000 Informix Software, Inc.
ij> CONNECT 'jdbc:cloudscape:demo;create=true';
WARNING 01J01: Database 'demo' not created, connection
made
to
existing
database
instead.
ij> SHOW CONNECTIONS;
CONNECTION0* - jdbc:cloudscape:demo;create=true
* = current connection
ij> CREATE TABLE employee(name CHAR(25), location
CHAR(20),
id
INTEGER);
0 rows inserted/updated/deleted
2. I created Connection Pool and Data Source using Default
Console
The Connection Pool configuration is the following:
Name : MyJDBC Connection Pool
URL : jdbc:cloudscape:demo
Driver Classname: COM.cloudscape.core.JDBCDriver
Properties : user=none password=none server=none
My Data Source configuration is the following:
Name : MyJDBC Data Source
JNDI Name: MyJDBCDataSource
Pool Name: MyJDBC Connection Pool
I added the following line to myserver startup script
to
point
to the database location:
-Dcloudscape.system.home=./samples/eval/cloudscape/data
3. I wrote the servlet and here is the piece of themyJDBCReadServlet
code which generated the exception:
public void init()
System.out.println("=== Start init method inmyJDBCReadServlet.java
===");
try {
ctx = new InitialContext();
ds = (javax.sql.DataSource) ctx.lookup
("MyJDBCDataSource");
} catch (Exception E) {
System.out.println("Init Error: " + E);
System.out.println("=== Finish init method inmyJDBCReadServlet.java
===");
Why it cannot find the database using JNDI name?
Any help will be greatly appreciated,
Jacob Nikom