Maintaining database transaction in BPEL

Hi All,
Im using oracle SOA suite 10.1.3.3.0 version.
Here is a simple BPEL with two invoke activities, invoking database adapter.
First invoke activity inserts data to a table A. Second invoke activity inserts data to a table B.
If there is any exception in the second invoke activity, first invoke activity also has to be rolled back.
But that doesn't happen. First invoke gets commited.
Thanks
Jude.

Hi Jude,
That's default behaviour. You have to do some configuration to make invocations part of the same global transaction. This is described in the SOA Suite best practices guide. See: http://download.oracle.com/technology/tech/soa/soa_best_practices_1013x_drop3.pdf and then "XA Configuration - Two Database Adapter Invokes Committing or Rolling Back as a Unit" at 3-3.
Quote:
"The following is required to make two invokes commit or roll back as a unit:
Both the database adapter invokes must be configured to participate in global
transactions
Both invokes must participate in the same global transaction
The failure of either invoke must cause the global transaction to roll back"
Regards, Ronald

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Hi,
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I have used the wait activity in the process before the both inserts to store the instance to the dehydration store, so whenever there is any exception I could see the instance hanging on the wait activity. It never executes any activities further the BPEL engine control is lost for this particular instance.
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Thanks in advamce.
Regards,
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Hi Anirudh,
Thank you for the quick response.
Let me give you brief exact desciption of my what I'm trying to achieve.
I have BPEL process which is performing insert operations into two different databases. I'm trying to achieve this in a single Transaction for both inserts so I have set the transaction property for both Partner Links as "Participate" which enable both the inserts to perform in single transaction. I have already included the exception handler blocks for both the DB Insert calls and also has global exception handler for my BPEL process.
But since I have set the transaction property whenever there is any exception in the second insert or in the first insert operation then BPEL control is lost, it never executes the exception block and instance is disappeared since thare is no commit point. So I have included wait activity before first Insert and now whenever there is any exception the instance rollbacks to wait activity which is the last commit point for my process and hangs there without any control and it never executes the exception block.
Please help me in this scenario how to catch the DB exception in my process and do further error handling tasks.
Let me know if you need further details.
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What kind of database driver should use for database adapter in BPEL?

what kind of database driver (XA or non-XA) should use for database adapter in BPEL? I have only one database adapter and no JMS.
Thanks
Jo
Edited by: 799095 on Sep 30, 2010 8:35 AM

Hi
It depends on wheter you need XA transaction or not.
See http://www.theserverside.com/discussions/thread.tss?thread_id=21385 third reply.
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-Johan

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I can find a example from http://download.oracle.com/docs/cd/B31017_01/integrate.1013/b28994/adptr_db.htm#BDCIGDCB.
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(6) Don’t do anything in step 6, 7 and 8.
6. Add a invoke activity to connect to above database adapter.
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But after I deploy this BPEL project to the BPEL server and invoke this project, I get following error. Meanwhile, this BPEL don't take effect.
The following exception occured while processing this request:
Can't find partnerLinkType 2.
in
"file:/D:/soft/SOASuite/product/10.1.3.1/OracleAS_1/bpel/domains/default/tmp/.bpel_BPELAdapter_1.0_e82210b05e4d3e997eed581d0d220293.tmp/_BPELAdapter.wsdl" WSDL to find PartnerLinkType "{http://xmlns.oracle.com/pcbpel/adapter/db/datain/datain_plt"。
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Thanks,
Melody

Now, I can insert data into the table through Database Adapter.
But still can't select data from the table through Database Adapter.
Above error still happen when invoke the read database table with Database Adapter project:
Can't find partnerLinkType 2.
in
"file:/D:/soft/SOASuite/product/10.1.3.1/OracleAS_1/bpel/domains/default/tmp/.bpel_BPELAdapter_1.0_e82210b05e4d3e997eed581d0d220293.tmp/_BPELAdapter.wsdl" WSDL to find PartnerLinkType "{http://xmlns.oracle.com/pcbpel/adapter/db/datain/datain_plt"。

Can i use java only for database transaction with vb as a front end

Hello All.
I am sorry,i don't know whether this location is the correct location to post my question or not
I have developed one application using complete vb only. That is completly desktop appliation and not suitable for centralized database. Is there any facility to keep my front end as same (vb application) and for the database transaction can i use jdbc? Is there any possibility to do that like View is vb based application and the database connectivity is only jdbc
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I am also doing the same thing what you have done, please help me.
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Hi,
I am using Oracle8i and firing some database queries from my web services. I want to do the transaction management for the same i.e. When one of the queries fail, i want to rollback. But when i write my own transaction management, it gives me an error :
java.sql.SQLException: Cannot call Connection.commit in distributed transaction.Transaction Manager will commit the resource manager when the distributed transaction is committed.
Can anyone please help me out as to how to perform the database transaction management in web services.
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Prashant

Unfortunately to manage transactions over web services there is no viable solution available in market. All implementations come with restrictions e.g. Metro works with only EJBs on Glassfish, JBossTS works on JBoss but not with JAX-WS, Atomikos supports only Axis as of now.
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3. [www.oasis-open.org/committees/ws-tx/|www.oasis-open.org/committees/ws-tx/]
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Database Transaction log suspected pages

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Hi Andreas , Thanks for your reply .
FYI- You have the event_type 1and 3 for your Database , but the event_type was updated to 4 on my system after I did restore and the date/time shows the exact date/time when the event_type was updated .
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Thanks
Daizy
Hello Daizy
yes, the event types 1-3 were the error-state before the "repair".
After I did a Full backup + Restore I now have type 4 just as you do.
Yes, the Log files is organized in so called "Virtual Log Files"/VLFs, which have nothing in common with the 8-KB data-pages of the data-files. Therefore a page_id does not make sense there.
You can read more on the architecture of the Transaction Log here:
SQL Server Transaction Log Architecture and Management
This article by Paul Randal might also be of interest to you for:
Transaction log corruption and backups
Hope that helps.
Andreas Wolter (Blog |
Twitter)
MCSM: Microsoft Certified Solutions Master Data Platform, MCM, MVP
www.SarpedonQualityLab.com |
www.SQL-Server-Master-Class.com

Once again: Does MySQL allow multiple querys in one database transaction???

Hello to ALL!!!
The problem is:
I'm trying to make simple query (database: "myDB" (engine:
myisam/innodb - doesn't mater) with one table: "Info" with two
columns: "Id" (autoinc), "info_c" (varchar):
<cfif structkeyexists (form, "name")>
<cfquery datasource="myDB" name="qDB" >
INSERT into Info (info_c)
VALUES ('#form.name#');
SELECT @@identity AS Id
</cfquery>
</cfif>
<cfform>
<cfinput type="text" name="name">
<cfinput type="submit" name="submit">
</cfform>
BUT after "Submit" I get:
Error Executing Database Query.
You have an error in your SQL syntax; check the manual that
corresponds to your MySQL server version for the right syntax to
use near '; select @@identity as Id' at line 2
Please, tell me WHY???
I have:
MySQL
Server information:
MySQL version: MySQL 5.1.25-rc-community via TCP/IP
Clent Information:
Version: MySQL client version 5.1.11
Coldfusion Version Information:
Version 8,0,0,176276
Great THANKS for your answers!!!

> SELECT @@identity AS Id
AFAIK, MySQL uses LAST_INSERT_ID(). @@IDENTITY is MS SQL
specific. Though SCOPE_IDENITY() is recommended over @@IDENTITY.
What version of CF are you using? ColdFusion supports the
"result" attribute, which will return the ID value for simple
inserts. See the documentation for details
http://livedocs.adobe.com/coldfusion/8/Tags_p-q_17.html
> Do JDBC drivers for MySQL prohibit the use of multiple
queries
> in a single database transaction???
For security purposes this is disabled by default. To enable
it you must modify your datasource url
http://www.petefreitag.com/item/357.cfm

Database Transaction

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Regards,
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> It is the businness/functionality requirement which is prompting us to think that way.
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The "method" is the configuration of the database engines isolation level:
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Markus

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Database transaction throught pages

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Maintaining database transaction in BPEL

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