Ejb timed out while doing 2pc commit

Question

Hi, all
I have a session bean with container managed transaction. In one of
the business methods, I need to update tables from 2 different Orcale
datasources. I am using the XA driver
oracle.jdbc.xa.client.OracleXADataSource when setting up the 2
connection pools. I have a log statement as the last line in my
method. The message gets logged without any delay. However, control
doesn't return from the method. And eventually, I get a timeout
message.
My guess is that the transaction manager has problem committing the
changes. But I don't know how to resolve this issue. Can someone help?
Thanks in advance.
TS

Answer 1

It'd be interesting to take a thread dump of the server when you believe
the tx is hung.
I'd also suggest enabling JDBC logging so you can see the SQL issued to
the DB.
-- Rob
ts wrote:
Ryan,
Thanks for getting back.
To answer your questions:
1. I am using tx_required for the stateless session bean.
2. My bean method simply got stuck at the end, it didn't generate any
exceptions. The only exception I got is a timeout exception while
commiting.
Hope I made myself clear.
Rgds,
Tong
"Ryan LeCompte" <[email protected]> wrote in message news:<3e81ded6$[email protected]>...
Hello Tong,
Can you please provide the stack trace of the exception that is being thrown from
your session bean? Also, what transaction attributes have you specified for your
session/entity beans?
Best regards,
Ryan LeCompte
[email protected]
http://www.louisiana.edu/~rml7669
[email protected] (ts) wrote:
Hi, all
I have a session bean with container managed transaction. In one of
the business methods, I need to update tables from 2 different Orcale
datasources. I am using the XA driver
oracle.jdbc.xa.client.OracleXADataSource when setting up the 2
connection pools. I have a log statement as the last line in my
method. The message gets logged without any delay. However, control
doesn't return from the method. And eventually, I get a timeout
message.
My guess is that the transaction manager has problem committing the
changes. But I don't know how to resolve this issue. Can someone help?
Thanks in advance.
TS