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JPA Doc
3

javax.persistence.EntityManagerFactory

EntityManager. This method returns a new EntityManager instance each time it is invoked. The isOpen ... returns a new EntityManager instance each time it is invoked. The isOpen method will return true
Issue
3

Freeze during save

.Thread.State: TIMED_WAITING at java.lang.Object.wait(Native Method) - waiting ... t@27 java.lang.Thread.State: TIMED_WAITING at java.lang.Object.wait(Native Method ... .Thread.State: TIMED_WAITING at java.lang.Object.wait(Native Method) - waiting
Issue
3

each 1-2 days objects on some objectdb level lock/block each other

timing in which each thread dump was taken. If you can produce several more thread dumps (in production ... to another database. we try to agree on a bit more time, but the situation is really hot We are analysing ... (maybe reaching 100%?), and then in peak time the system is obviously overloaded? ObjectDB uses
Forum
3

ObjectDB is opening too many sockets

of increasing system limits. We are using Ubuntu 18.04.5 LTS and after some time it causes following ... up to 20), but the socket stays there for longer period of time. java    17888  odb   14u  IPv6 ... indefinitely, but still I don't get, why some times it openes 70 sockets at once, and if I tried same operation
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2

Connection performace after upgrade to objectdb 2

[] args)  {         for (int i = 0; i < 5; i++) {             long time = System.currentTimeMillis ... ");             System.out.println("Obtaining PersistenceManagerFactory: " +                 (System.currentTimeMillis() - time));             for (int j = 0; j < 5; j++) {                 time = System.currentTimeMillis
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2

Performance in large transactions

may have to be applied each time again and again, in order to check their up to date validity and integrate ... ();   System.out.println("test_OneTransaction  create time: "     + (System.currentTimeMillis() - startTime ... ();   }   System.out.println("test_ManyTransactions  create time: "     + (System.currentTimeMillis() - startTime
Issue
2

combined index not used

of time remained when you copy directories with many files in Windows, which is very inaccurate ... list of candidate query plans. The following list shows the actual execution time of each query plan ... time you may be able to manually select the best query plans for these queries as a quick workaround
Issue
2

Best practise loading big data

of different Db files at the same time, each with own entitiy manager and open transaction holding ... of WeakReference objects) grows and grows within this transaction, even if at some time the GC collects ... . One could expect that the could be reused if their referenced objects are freed or that from time
Issue
2

java 8 LocalDateTime is not working in query

My entity class has a field of type java.time.LocalDateTime. I'm able to persist entities and I'm ... : SELECT t FROM Test t New Java 8 date/time types are not supported by JPA yet. I don't want ... ), which shows how you can use Java 8 date/time using @Convert, we may be able to add this support
JPA Doc
2

createEntityManager()

Method javax.persistence.EntityManagerFactory EntityManager createEntityManager() Create a new application-managed EntityManager. This method returns a new EntityManager instance each time it is invoked. The isOpen method will return true on the returned instance. Returns: entity manager instance