First thank you for the help. I couldn't print stack trace of what's happening in H2. When I stop at the right point with a debugger and try to print the stack trace it only show me what's happening in my thread not in H2. Could you tell me more precisely what I can do to in order to see where it comes from?
I've noticed something very strange : whatever lock mode I use it is always block the same, I tried all possible LOCK mode. With or without MVCC, but it always block at some point during an insert, and at this time I can never read inside the database with another thread, sometime during more than a few seconds. By the way I didn't mentioned it but I'm not using an in memory database, I'm using a persistent disk database. -- You received this message because you are subscribed to the Google Groups "H2 Database" group. To unsubscribe from this group and stop receiving emails from it, send an email to h2-database+unsubscr...@googlegroups.com. To post to this group, send email to h2-database@googlegroups.com. Visit this group at https://groups.google.com/group/h2-database. For more options, visit https://groups.google.com/d/optout.
