About backup

manual

Online Backup

Online Backup enables backing up an ObjectDB database while it is in active use by applications. The ability to create a backup while the system is running is essential in applications and services that have to be available 24/7/365.... ObjectDB 2.1 introduces support of online backup, which enables backing up an ObjectDB database while it is in use. This ... the following topics: Starting Online Backup Custom Backup Target Online Backup Thread ...

 
manual

Database Transaction Replayer

Explains how to use the ObjectDB object database Replayer tool to restore recorded Java/JPA/JDO actions.... apply recorded database operations on a matching database backup (if available). This ability is useful for two different purposes: ... This page covers the following topics: Backup & Recording Files Running the ObjectDB Replayer ...

 
forum_thread

Online backup problem

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 get multiple ClassNotFoundExceptions like : ... 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 ...

 
forum_thread

exception during online backup

hi   from time to time i get exception during online backup in server/client config: ...   from time to time i get exception during online backup in server/client config: Exception in thread "Thread-0" ... backupQuery = em. newQuery ( "objectdb backup" ) ; backupQuery. execute ( ) ; ...

 
manual

Database Replication and Clustering

Replication enables maintaining up to date version of an ObjectDB database on multiple nodes. ObjectDB supports master-slave replication (cluster) since version 2.1. When replication (or clustering) is used, the same database is managed on multiple machines (nodes), possibly in different geographic locations. This could help in achieving high ...

 
issue

Online Backup

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.... only be done when the database is closed. Online backup will enable backup also when the database is open and in use. ...

 
forum_thread

Online backup in embedded mode fails

Hi, As in topic. "online backup" fails when executed in embedded mode. Everything works fine with server mode. ... Hi, As in topic. "online backup" fails when executed in embedded mode. Everything works fine with server ...

 
forum_thread

Some technical questions

Hi, ObjectDB looks interesting. Have two technical questions... (1) what locking model does ObjectDB use? I.e. 2PL or MVCC? Do writers block readers? Do readers block writers? (2) what's the recommended usage for SAAS? One ObjectDB database per customer, or one ObjectDB database for all? Thank you, Andrej ... like MVCC, so it can see the data at the time the backup was started (to have consistent backup data)?  Thanks Andrej   ...

 
release

2.2.9

... an empty database . Fixed a online backup file lock problem . Fixed a bug in managing a new entity ... NOT . Fixed a bug in running online backup with no arguments . Added option for running the ...

 
release

2.3.0

... an empty database . Fixed a online backup file lock problem . Fixed a bug in managing a new entity ... NOT . Fixed a bug in running online backup with no arguments . Added option for running the ...