Fast Object Database for Java - with JPA/JDO support

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1

Server crash - Mismatch client-server protocol prefix

We've been having a problem where our ObjectDB server goes unresponsive every 2 days or so. I've reviewed the server-side logs, and there are no events logged shortly before the crash. Once the server gets in this state, it is unresponsive to bin/server.sh restart; I have had to reboot the entire
1

EOFException

, including the database file while it is open by ObjectDB)? Any special event before that failure (e
1

ObjectDB is opening too many sockets

logging enabled: During sudden events of socket
1

Guestbook Tutorial (Eclipse/Glassfish)

I have the tutorial working which has been a great help in understanding how to use ObjectDB. I have found one problem. The database file (C:\glassfish3.1\glassfishv3\glassfish\domains\domain1\eclipseApps\Guestbook\WEB-INF\db\guests.odb) is reset on occasions; I am not sure what set of events
1

Working with a cleared cache

restrictions on code in JPA/JDO lifecycle event callbacks. ObjectDB should produce better error
1

Blocked by find

- Error sending callback event rbccm.felix.framework.ApplicationException: Error flushing data
1

Master database switching to read-only mode, possibly caused by slave failure

of events was: 13:20 - our monitoring reported GC time per minute on the SLAVE instance over 30 seconds
1

ObjectDB stability after power failure

I'm considering using ObjectDB in a system that is going to be running continuously without support instantly available for many years. How stable is ObjectDB when it comes to power failures and unattended restarts? Is database integrity maintained during such events? I have seen database vendors
1

JPA 2.1 and AttributeConverter

field for the File or URL and convert it from/to byte[] or String in JPA lifecycle events methods

Getting Started

ObjectDB is very easy to use. Follow the Getting Started Tutorial and the Quick Tour manual chapter and in minutes you may be able to write and run first Java programs against ObjectDB.

Prior knowledge or experience in database programming (SQL, JDBC, ORM, JPA, etc.) is not required, but some background in using the Java language is essential.

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