ObjectDB Database Search

supports also online backup , for backing up an ObjectDB database while it is in use. This is useful ... . Starting Online Backup The online backup can be started by executing a special query on an EntityManager ... ; em.createQuery("objectdb backup ").getSingleResult(); The backup query string is always exactly

can apply recorded database operations on a matching database backup (if available). This ability ... the recorded operations. It enables reproducing problems during debugging by repeating a failure. Backup ... directory contains two types of files: Backup files - with names of the form .odb Recording files

I have attempted to access two different backups that were taken by ObjectDB’s internal backup API ... the relevant content, i.e. the History instances. Could you please try: opening the backup files using ... specific backups ? Are other similar backups OK? Does it happen only in the Explorer or

Dear objectdb Team 1. I could not find a way, to declare the name of the backup -file ... the database - file: Query backupQuery = em.createQuery("objectdb backup "); backupQuery.setParameter("target", new java.io.File("c:\\ backup ")); backupQuery.getSingleResult(); The code above, for instance

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

and also write) failed with an exception during an online backup of the same DB file was running and was close ... related anymore to running of online backups . Maybe some new bug was added to the code ... (JdoQuery.java:748)     jakab Gergely Jakab Build 2.6.2_05 changed only online backup code

Hello, I have a request for improvement in the area of backuping . For catching the exceptions during online backups , I am using the solution suggested in the post  2786 Well not exactly ... we would like } ) ; // Wait until the backup is completed. try {     backupThread

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 ... ) and it doesn't seem to be related to the online backup . Please post the code that you are using to run

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 ... . Can it be improved? In my opinion the server proces should handle whole backup proces and do it as

I use em.createQuery("objectdb backup ", Thread.class);  to backup hourly.  And the backup file is always getting bigger even if the db file is not getting bigger.  Why is that? Trianglehead Json Error Does the database file itself remain the same size? Is the backup size different

Hi, I would like to try the Online Backup tool as I am making backups up to now with the not ... question is about starting the online backup . The manual suggests starting it via the EntityManager with the code em.createQuery("objectdb backup ").getSingleResult(); But how do I start it if I am using

I have tried using online back to test the backup feature.  It's been hour and I still don't see my backup file.  I have 1 million record in 1 table as a test.  https://www.objectdb.com/java/jpa/tool/ backup How long does it usually take for a backup ?  And are there no temp

dear sir/mam,   kindly assist how to restore the backup   ayugoyal13 Ayush Goyal An ObjectDB backup is a valid database itself. Just replace the database file with the backup file. support ... how can i replace the backup file with the previously used file which is in use ? kindly help

thread titled, "Sample JDO Architecture for Follow Up Questions".   I desire offline backups .  ... connections until the backup is complete.  How can I guarantee that a database is no longer being used ... datastore file backup which guarantees the file will not be corrupted? CBE CBE You should close

hi   from time to time i get exception during online backup in server/client config ... backup "); backupQuery.execute(); but this is not an urgent functionality for us br Tomasz Tomasz Wozniak Thank you for your report. I will try to reproduce it by a test that uses online backup

We're using the following to trigger an online backup and we're trying to implement server-side online backup (as discussed in https://www.objectdb.com/forum/2737). EntityManager em = database.createEntityManager(); TypedQuery backupQuery = em.createQuery("objectdb backup ", Thread.class

Is it possible to make a backup from the explorer? jastorga Juan If the database is not in use you can use the File Open dialog and then copy and paste on the database file (right click a database file to see the copy command). But a safe online backup (while the database is in use) is not supported. support Support

Hi, As in topic. "online backup " fails when executed in embedded mode. Everything works fine with server mode. java.lang.NullPointerException at com.objectdb.o.BAC. (BAC.java:63) at com.objectdb.o.MST.U4(MST.java:1764) at com.objectdb.o.MST.U3(MST.java:1745) at com.objectdb.o.WRA.U3(WRA.java:498

for backup purposes and for debugging (by providing the ability to reproduce problems by replay ... "write" ) specifies which operations should be recorded. For backup purposes only "write" operations

- will create new, separate persistable classes with no instances. Therefore, you should backup

and often. It is also recommended to validate production database files (or their backups ) often by

days: try { CoreService.getLogger(this).info("DB Backup Start..."); TypedQuery backupQuery =   ... .createQuery("objectdb backup ", Thread.class); Thread backupThread = backupQuery.getSingleResult(); backupThread.join(); CoreService.getLogger(this).info("DBService Backup DONE!"); } finally { em.close

We need a way to do a (online) backup to a user defined backup -destination. Maybe in that way: backupQuery.setParameter("targetfile", new java.io.File("/User/ Backup /test.objectdb")); which should create a backupfile with the name ' test.objectdb " in the directory ' /User/ Backup / ' or backupQuery

?  The online backup feature appears to copy the dead space as well so isn't performing ... We are trying to optimize the database size due to the time it takes to perform an online backup for large databases.  Our organization requires daily backups on our data and we have a limited

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

Hi, We use the Object DB backup utility for most of our backups , however we also do file system backups . Recently our file system backups have been failing because the .odb$ (write files) have been removed, by the DB Server, during the backup .  My question is that if we have a good

a database when it is in active use is unsafe. With ObjectDB 2.x you should use online backup  for this purpose. support Support Thanks for the reply. I went through the online backup web page ... the follwoing code     query.setParameter("target", new java.io.File("c:\\ backup ")); And i

; Does DB backup backs all objects including indexes? If yes, is there a way to backup data only? And. is there a way to backup specific entities only? What is the overhead of online backup ... this feature is released). Currently ObjectDB online backup backs up the entire database including

transaction either commits or rolls back? Since ObjectDB implements online backups , does it implement something like MVCC, so it can see the data at the time the backup was started (to have consistent backup data)?  Thanks Andrej   andrej Andrej Gabara E.g. in one transaction I change

(although the Doctor was saying the Db file has no errors) with an older backup and the code was running ... , so restarting your application with the same database (instead of a backup database) should be safe. support ... again to a working backup of the DB. It is quite alarming. jakab Gergely Jakab I just read ur answer

, path, false);   support Support     what about backup ? can we make backup by only copying objectdb file? if we make backup by objectdb file , will it make problem for future release of objectdb?   kadirbasol Kadir BASOL You can read about backup on this manual page

a way that requires switching to a backup database. However, if you send the original database, not ... that runs automatic backup daily (and if possible several times every day) and then checks the backup ... on fixing it. By checking backup copies using the Doctor you can at least tell whether there is a database

the DB file. We were then searching for backups of the database which would still work and found out that the latest backup which works is the one just before the first report of "Too many persistable ... earlier next time.   jakab Gergely Jakab Hi, Usually running the Doctor on every backup

down the server once a day. Meanwhile our customers might do some backups - in addition to the serverside triggered backup with createQuery("objectdb backup "). I have no glue what might happen to the data

to recover from a failed instance would be to simply stop all writing, take a backup from the working instance(that will make sure all transactions are committed) and then copy the backup to the failed

records reduce, as it is live in production. I do an hourly backup and the backup file is not any

. But since it is a background tool (integrity check can be done on a backup copy generated by the online backup ) - I think it is not an issue of high priority. However, if you have a test database

Hello, is it possible to configure default file permissions on created files? ObjectDB creates DB files with 644 linux permissions. We would need 664. This should apply also to backup files created ... .createQuery("objectdb backup ", Thread.class); backupQuery.setParameter("target", getBackupDirectory

that is similar to the current online backup (i.e. by running a special query against the database). support Support

, could that be the problem ? Here the link tot he backup of this night, no doctor done on that https://www.dropbox.com ... Zwicker Some initial observations: Running the Doctor on the database at #4 (yesterday's backup ... Hans-Georg Zwicker Copies of the databases before (latest backup ) and after the exception will help

backup and was fixed in version 2.6.3. Are you using online backup when the exception ... we have it now 5-10 times per day. There is not any backup activity active during these times. It always happens ... with the embedded ObjectDB but by a different process (anti-virus? virus? backup ? another application that uses

For example, if we make a backup of our database it would be helpful to have the possibility to compare the backup schema (odb file) with the current version in the database and as result ... graphs stored in the db with old graphs from backup db. wua Andreas Wurm

is because of an automated database backup , not critical. between saturday and yesterday we had always CPU peeks ... (much more than a backup ) and should be done when system load is low. There are no known issues

(2.7.2) to repair the database. If you have a daily backup that you can run the Doctor ... about these stack traces. To be on the safe side please use the Doctor to check the database (or generated backups

be that bad but it has to be checked. Another thing that you can do is frequent online backups followed by a Doctor check of the backup files, at least daily, to verify that the database is healthy

Added an option to disable some query execution optimizations. Added an option to exclude persistence aware enhancement ( feature request #1683 ). Added an option to use temporary files for very large transactions ( feature request #1658 ). Fixed an online backup bug (no access during backup

Added an option to slow backup (see  feature request #2681 ). Added an option to view old type versions in the Explorer (-Dobjectdb.ui.debug=true) Improved the Doctor (see  issue #2691 ... to slow backup in client-server mode (see  feature request #2681 ). Fixed Explorer issue after schema

it could be solved via a special Query like "objectdb backup " which is used for online backuping . jakab

problem.. version 2.5.6_05  - size of data 100GB I am running a Doctor in prod (in a backup file ... been migrated. New database copy is ready at: backup \201703291624\pcsodbcsv_new.odb jastorga Juan Doctor

online backup with no arguments . Added option for running the Doctor without activating disabled indexes. Fixed a Doctor bug in fixing old (