Idle in transaction

Question

Hi to everyone,
My situation
With Netbeans 6.1 I developed a java application to manage data which uses jre 6u7 and jdbc4 to connect to a postgres 8.2.5 database, in the code I use entity manager and persistence unit.
All fine, BUT apparently randomly i obtain an 'idle in transaction' status from postgres connections, since I previously developed a similar project in php and NEVER had a similar problem, I wonder if this is a common problem (many topics found in the net but none enlightning) . Help will be very appreciated since this problem freezes all DB queries I execute after.
I say 'apparently randomly' since the same code works fine 3 or 4 times and then BUM! idle in transaction and I must kill the postgres connection manually.
Is this a problem with jdbc or persistence or what? I can't guess, please help. Thanks in advance.

Answer 1

If you're using a persistence framework, you don't need to setAutocommit manually, or better you must not!
It's up to the persistence layer. From a jdbc point of view setting autocommit to false starts a transaction and
setting it to true will commit. Which persistence framework are you using?