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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also online backup, for backing up an ObjectDB database while it is in use. This is useful in applications that provide round the clock service (24/7/365) such as most web applications. Starting Online Backup The online backup can be started by executing a special query on an EntityManager (em
) failed with an exception during an online backup of the same DB file was running and was close ... stacktrace (no inner exception is shown) and it is not related anymore to running of online backups. Maybe ... Build 2.6.2_05 changed only online backup code, but possibly other changes in previous recent builds
Hi, I would like to try the Online Backup tool as I am making backups up to now with the not encouraged file-copying method while the database is online. So my first question is to this file-copying. I've read at the Database Doctor that copying the db file while it is online may cause corrupted DB
hi from time to time i get exception during online backup in server/client config: Exception in ... Tomasz Tomasz Wozniak Thank you for your report. I will try to reproduce it by a test that uses online ... and client which is executing test. In first step provisioning is executed and in a second online backup
Hello, we have issue with online-backup when using client-server mode. It seems, that it is working the following way. When we run the backup, server is creating tmp file for whole database ... you have two options for online backup: If your specify a File instance as the target parameter then a temporary
Hi, We are trying to create a servlet that performs database online backup. Unfortunately, even though no exception is thrown, backup files aren't created. When I turn on DEBUG logging in ODB, I ... is normal (part of the class searching process) and it doesn't seem to be related to the online backup
Hello, Are there plans for ObjectDB to handle incremental online backups, where a backup does not create a whole new copy of the DB, but "updates" an existing backup? This behavior would make backups much faster as only a portion of the data would need to be copied. Such a feature would also allow
, up to date, searchable online Developer's Guide/Manual. ObjectDB Manual in PDF format is included in ObjectDB distribution download. Online searchable JPA API Reference (based on JavaDoc). Online searchable ... and fault tolerance. Online Backup Online backup by a simple query on an EntityManager
Replication enables maintaining up to date version of an ObjectDB database on multiple nodes.
An ObjectDB database file can be backed up simply by copying the file (with the associated recovery file if exists). This should only be done when the database is closed. Online backup will enable backup also when the database is open and in use. support Support Online backup is now implemented in ObjectDB 2.1. support Support