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Sample JDO Architecture for Follow Up Questions

" "How to do an Offline Database Backup?" "Shrinking Database Files" "Should I Avoid Compressing Database Files?" CBE CBE

Storing Images

the images (e.g. when serving images in web applications), but complicates database maintenance (e.g. backup

Duplicatable and Disposable JPA Repository for Unit Testing

the database file when it is closed (or use online backup if it has to remain open) and you get a new

ObjectDB is opening too many sockets

except backups which are done using JPA. I was playing with server connection limit (set to 55 assuming

ObjectDB stability after power failure

you may use replication and online backup to protect your data. Finally, if everything goes wrong

cannot delete objects after crash (see issue 2283)

. Enabling replication, generating a live backup database. We may also increase the priority of a plan

ObjectDB 2.7.0

sizes larger than 64KB (which are not supported by ObjectDB). Fixed an issue of very slow online backup.

Server crash - Mismatch client-server protocol prefix

with a particular index, which was also flagged when I ran the database doctor on a backup

ObjectDB 2.1.0

Added Online Backup utility (issue #16). Added Master-Slave Replication / Clustering (issue #17). Added a PDF version of the ObjectDB manual (included in the download). Added sample (tutorials) Maven projects (included in the download). Added support of disabling optimistic locking exceptions

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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