exception during online backup

hi

  from time to time i get exception during online backup in server/client config:

Exception in thread "Thread-0" com.objectdb.o.UserException: Failed to read from file 'D:\twozniak\Desktop\db\objectdb-2.2.8\db-files\points.odb'
at com.objectdb.o.MSG.d(MSG.java:74)
at com.objectdb.o.LFL.T(LFL.java:1059)
at com.objectdb.o.LFL.B(LFL.java:486)
at com.objectdb.o.LFL.m(LFL.java:449)
at com.objectdb.o.BAC.n(BAC.java:119)
at com.objectdb.o.TOL.run(TOL.java:115)
at com.objectdb.o.DTT.run(DTT.java:73)
at com.objectdb.o.STD.run(STD.java:73)
Caused by: java.io.IOException: The process cannot access the file because another process has locked a portion of the file
at java.io.RandomAccessFile.readBytes(Native Method)
at java.io.RandomAccessFile.read(RandomAccessFile.java:338)
at java.io.RandomAccessFile.readFully(RandomAccessFile.java:397)
at com.objectdb.o.LFL.T(LFL.java:1056)
... 6 more

code:

PersistenceManager em =  pmf.getPersistenceManager();
Query backupQuery = em.newQuery("objectdb backup");
backupQuery.execute();

but this is not an urgent functionality for us

br

Thank you for your report.

I will try to reproduce it by a test that uses online backup extensively while the database is in use (unless of course you already have such a test that you can share).

I assume you use the database only from one ObjectDB server (and no other processes). Do you?

Which operating system and JVM are you using?

Hi

Only server is running and client which is executing test. In first step provisioning is executed and in a second online backup and as I said, sometimes it works sometimes no

br

Tomasz

Build 2.2.8_07 includes an attempt to fix this bug. Please try it.