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Hibernate 4 upgrade, COMMIT not being issued


Hibernate 4 upgrade, COMMIT not being issued

By : SmotAl
Date : November 22 2020, 10:48 AM
should help you out So it turns out I was doing something incorrect (surprise). There's a good reason that the TransactionState was showing as TRANSACTION_IDLE and not issuing a commit.
I had seen in multiple places on the internetz where people were getting access to a JDBC connection in the new Hibernate 4.x land by getting access to the underlying ConnectionProvider (sort of like this: https://stackoverflow.com/a/21271019/115694).
code :


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Request handled okay when issued by browser, but not when issued by ASP.NET application on the same machine

Request handled okay when issued by browser, but not when issued by ASP.NET application on the same machine


By : user3907584
Date : March 29 2020, 07:55 AM
With these it helps Two hours debugging - and it turned out that service at port 90 would redirect the request back to the service at port 100 but wouldn't provide a required parameter in the URL, so the handler in the service at port 100 would throw an exception and return the HTTP 400 which was then reported by the GetResponse(). The solution was to change the logic so that there's no redirect for this specific request because the redirect would make no sense for this specific request.
And the jury finds both Cassini and ASP.NET to be not guilty.
Upgrade to hibernate 4: org.hibernate.TransactionException: unable to commit against JDBC connection

Upgrade to hibernate 4: org.hibernate.TransactionException: unable to commit against JDBC connection


By : user2352192
Date : March 29 2020, 07:55 AM
wish of those help It is a bug in Spring: SPR-10395 - you should update it to version 3.2.3+
Why is 'SHOW WARNINGS' query issued here? (JPA/Hibernate/MySQL)

Why is 'SHOW WARNINGS' query issued here? (JPA/Hibernate/MySQL)


By : user3824734
Date : March 29 2020, 07:55 AM
To fix this issue This is WHY show warnings is being issued: org.hibernate.engine.jdbc.spi.SqlExceptionHelper.handleAndClearWarnings() is calling com.mysql.jdbc.StatementImpl.getWarnings().
A comment in the Hibernate source code says:
Problem after hibernate upgrade - nested loop in hibernate (CascadeType and EmbeddedId)

Problem after hibernate upgrade - nested loop in hibernate (CascadeType and EmbeddedId)


By : user3149335
Date : March 29 2020, 07:55 AM
With these it helps I've done a workaround to this problem as it seemed to be the hibernate+WildFly bug as described here https://hibernate.atlassian.net/browse/HHH-13296.
So my workaround was to remove the EmbeddedId and create new IDcolumn in table in database which is a concatenation of 2 used columns in primary key which was EmbeddedId (and set them in proper places in code)
What happens under the hood when a commit statement is issued in Oracle 10g?

What happens under the hood when a commit statement is issued in Oracle 10g?


By : Dais
Date : March 29 2020, 07:55 AM
I wish this helpful for you SCN (System Change Number) is incremented: SCN guarantees the order of transactions LGWR (Log Writer) writes remaining redo log to disk LGWR writes SCN into the online redo log files Transaction is removed from V$TRANSACTION Locks of the actual session are released, removed from V$LOCK Other sessions waiting for the locks of the actual session are notified Block clean out may happen: Lock-related information is cleaned out of the block headers of the blocks modified by the transaction
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