About concurrency

release

2.6.1

Release date: 2015-02-12 Download (5.5 MB) Binary:  objectdb-2.6.1.zip You should start by following a  tutorial or reading the manual ...

 
forum_thread

Index causes increased memory usage

Hello, #1 2012-05-10 20:52 Hello, In an effort to increase the speed of our queries with our embedded ObjectDB system, we configured ...

 
manual

Database Management Settings

Explains settings and performance tuning of the ObjectDB Java object database for JPA/JDO. The <database> configuration element specifies back end (database engine) settings which are relevant on the server side and in embedded mode. The default configuration file contains the following <database> element: ...

 
release

2.6.0

Release date: 2015-01-13 Download (5.5 MB) Binary:  objectdb-2.6.0.zip You should start by following a  tutorial or reading the manual ...

 
forum_thread

OptimisticLockException

Ran into this error for the first time (after many years of using odb): Caused by: com.objectdb.o._OptimisticLockException: Optimistic lock failed for object model.UserSession#28 (object has version 2 instead of 3) Also the first time I'm using odb in C/S mode rather than embedded. Also have the Explorer open Questions: a) what is it about? ... haven't used ObjectDB in embedded mode. My issue was concurrency, and as OP posted, they are mainly single threaded. ...

 
release

2.5.6

Release date: 2014-06-17 Download (5.46 MB) Binary:  objectdb-2.5.6.zip You should start by following a  tutorial or reading the manual ...

 
release

2.5.7

Release date: 2014-09-29 Download (5.49 MB) Binary:  objectdb-2.5.7.zip You should start by following a  tutorial or reading the manual ...

 
forum_thread

Pessimistic Lock Timeouts setting

Hi,   I realise that JPA2 doesn't necessarily define a standard API way for Lock Timeouts. However, there is a standardised query 'hint' that can be setup to make the underlying DB lock a record for a specific time. The hint property is: "javax.persistence.lock.timeout" #1 2011-04-29 04:30 Hi,   I realise that JPA2 doesn't necessarily define a standard API way for Lock Timeouts. Howev ...

 
issue

Database access error , Doctor hanging on trying to repair, production shutdown at our biggest customer

we have a database shutdown, logs are showing: [2017-07-10 21:07:23 #1 store] Database 'F:\Hummingbird\Objectdb\db\coreSystemDb.odb' is opened by 11028@wzbhb101 [2017-07-10 21:07:23 #2 server] Server on port 3333 has started by 11028@wzbhb101 [2017-07-14 07:08:38 #3 store] SectionClassifier: SectionClassifier{2->merger[2699]-missing:1} [2017-07-14 07:09:08 #4 store] SectionClassifier: SectionClassifier{2->merger[2699]-missing:1} Bug Version: 2.7.1 Priority: Normal Status: Closed Replies: 15 Type:  Bug ...

 
forum_thread

Externalising persistence.xml properties in Glassfish?

Hi, #1 2011-04-23 08:43 Hi,   I've run into a little bit of a wall with regards to persistence.xml and externalising the ...