Thank you a lot for info! Can you give some estimates about the performace? I've conducted small test on my PC (Pentium III 550 MHz, 256 Mb RAM) using jboss and Hypersonic SQL. I get: creating 100 beans - approx. 5000 ms updating 100 beans - approx. 5000 ms deleting 100 beans - approx. 8000 ms Taking into consideration, that Hypersonic SQL (basically in-memory Java DB), this performance is more or less acceptable for us. However, file based tests for InstantDB show 3-4 times slower performance, and PostgreSQL 6.5.2 (ok, not 7.1) - 20 times slow down, and such performance is definitelly unacceptable. > currently we have 110.000 DokmentBean beans (the index table for our > document management system) on a MS SQL Server 7 SP2 on a > Pentium III 933 > with 1Gig RAM (database + jboss running on the same machine) > os is windows > 2000 server > > but we are using bmp (would cmp make a difference?) _______________________________________________ JBoss-user mailing list [EMAIL PROTECTED] http://lists.sourceforge.net/lists/listinfo/jboss-user