About failure
Database Management Settings
Explains settings and performance tuning of the ObjectDB Java object database for JPA/JDO.... file can be used to fix the database. Recovery from failure is automatically applied by ObjectDB when a database is opened and a ... the database) have to be recorded. For debugging of query failure it might be necessary to record "all" operations in order to ...
Master database switching to read-only mode, possibly caused by slave failure
We had a database failure causing a production outage. Both master and slave databases have failed, slave became unresponsive and the master switched to read-only mode. By the look of it the slave database failed first and possibly caused the master to switch to read-only mode. The sequence of events was: ... We had a database failure causing a production outage. Both master and slave databases have ... also unexpected. Is it possible that actually the failure started on the master? In that case, if you use a combined master/slave ...
Optimistic locking failure
Optimistic locking failure: I am using a Semaphore to force this execution of concurrents transactions T1 and T2 that cause parallel updates to A/B but it does not throw an OptimisticLockException and roll back. ... Optimistic locking failure: I am using a Semaphore to force this execution of concurrents ...
Merge failure with composite primary key
It was working well with previous releases and now is failing: Exception in thread "main" [ObjectDB 2.3.7_20] javax.persistence.EntityNotFoundException Entity is not found: MergeTest#('Hello',0) (error 631) at com.objectdb.jpa.EMImpl.merge(EMImpl.java:451) at MergeTest.main(MergeTest.java:19) Thanks. #1 2012-04-27 16:55 It was working well with previous releases and now is failling: Exception in thread "main" [ObjectDB 2.3. ...
failure to enforce NOT NULL for java.lang.String
my test cases are indicating that @Basic(optional=false) and @Persistent(nullValue=NullValue.EXCEPTION) are not enforced in 2.3.7_08 or that i have failed to understand how to annotate. example: @Entity public class Request { public Request() { } @Id @GeneratedValue(strategy=GenerationType.IDENTITY) private Long id; #1 2012-04-06 12:53 my test cases are indicating that @Basic(optional=false) and @Persistent(nullValue=NullValue.EXCEPTION) are not e ...
javax.persistence.EntityManager
Interface used to interact with the persistence context.(Interface of JPA)
Database Doctor
Explains how to use the ObjectDB object database Doctor tool to diagnose and repair database files and damaged Java/JPA/JDO objects.... due to various reasons: Hardware failure (e.g. a physical disk failure). Software failure (e.g. a bug of the Operating System, ...
EOFException
Not sure if you'll be able to help with this but I've had an application get into a state where it cannot access anything from the database - queries fail with the following exception: ... is a list of possible causes: Hardware failure (e.g. a physical disk failure). Software failure (e.g. a bug of the Operating System, ...
2.4.0
... restart for failed connections on unexpected network failure. Improved temporary file management including avoiding ... ( issue #144 ). Fixed a master server failure due to disconnecting a replicated slave server. Fixed ...
2.4.0_01
... restart for failed connections on unexpected network failure. Improved temporary file management including avoiding ... ( issue #144 ). Fixed a master server failure due to disconnecting a replicated slave server. Fixed ...
