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Objectdb recovery

Hello, I have question regarding objectdb recovery when objectdb is not finished correctly (power outage). We are using following configuration: <recovery enabled="true" sync="false" path="." max="128mb"/> <recording enabled="false" sync="false" path="." mode="write"/> Is there any possibility of data loss when power outage? ... <recovery enabled = "true" sync = "false" path = "." max = "128mb" / > <recording enabled = "false" sync = "false" path = "." mode = "write" / > Is there any ... enabled = "true" sync = "true" path = "." max = "128mb" /> This setting guarantees ...

 
manual

Database Transaction Replayer

Explains how to use the ObjectDB object database Replayer tool to restore recorded Java/JPA/JDO actions.... directory on a different physical device by setting the path attribute in the configuration . The recording directory ... If objectdb.jar is not in the current directory a path to it has to be specified. The tool's main class is ...

 
release

2.6.0

... Changed JOIN FETCH to act as LEFT JOIN in path expressions. Updated the PDF manual. Fixed a ... #48 ). Fixed a bug in compilation of path expressions in queries. Fixed handling null  values ...

 
release

2.6.1

... Changed JOIN FETCH to act as LEFT JOIN in path expressions. Updated the PDF manual. Fixed a ... #48 ). Fixed a bug in compilation of path expressions in queries. Fixed handling null  values ...

 
manual

Obtaining a JPA Database Connection

Shows how to use Java/JPA to connect to the ObjectDB Object Database.... unit in an XML file or you can simply provide the file path of the ObjectDB database instead: EntityManagerFactory ... argument, but when using ObjectDB, any valid database file path (absolute or relative) is also accepted. Any string that ends with .odb ...

 
forum_thread

Occasionally slow requests in load testing

We are running load testing against objectdb version 2.3.7_18. The performance is generally OK, however there are quite a few "spikes" in the performance where we are getting a lot of very slow response times from the DB, around 10 - 15 seconds. Looking at the DB server process with AppDynamics we can see that most of the requests get stuck in one of 2 places: com.objectdb.o.PGC:w: line number 232 com.objectdb.o.LFL:U: line number 1068 Please see the attached callgraph examples for full stack trace examples. ... follows: <general > <temp path = "$temp/ObjectDB" threshold = "8mb" /> <network ... "true" password = "true" /> <log path = "$objectdb/log/" max = "8mb" stdout = "false" stderr ...

 
manual

[ODB1] Chapter 4 - JDO Metadata

Shows how to define JDO metadata for persistence capable classes.... file located in META-INF , WEB-INF or in any other path at the level of the classes or above. Determining where to put the ...

 
forum_thread

JPA does not seem to be db agnostic

The following jpa code works with mysql but not with objectdb. Why would this happen? The provider the both jpas is the same: EclipseLink. The link for the one used with mysql is org.eclipse.persistence.jpa.PersistenceProvider; the one for objectdb is com.objectdb.jpa.Provider (per the tutorials). ... from ( Friendship. class ) ; Path<String> path = root.<String>get ( "username" ) ; ...

 
release

2.5.7

... Changed JOIN FETCH to act as LEFT JOIN in path expressions. Updated the PDF manual. Fixed a ... #48 ). Fixed a bug in compilation of path expressions in queries. Fixed handling null  values ...

 
forum_thread

Exception when dataset bigger than treshold

I was working on reporting service for my application and found a problem with datasets bigger than treshold set in objectdb.conf.   ... <general> <temp path = "$temp/ObjectDB" threshold = "64mb" / > ... - timeout = "0" / > <log path = "$objectdb/log/" max = "8mb" stdout = "false" ...