Grouper Users - Open Discussion List

[Tom Zeller <>]

Greetings,

Is it reasonable that multiple threads executing :

MemberFinder.findBySubject(s, SubjectFinder.findById("foo"));

may result in :

Exception in thread "Thread-17"  
edu.internet2.middleware.grouper.internal.dao.GrouperDAOException:  
Could not execute JDBC batch update at  
edu.internet2.middleware.grouper.internal.dao.hibernate.HibernateMemberD 
AO.create(HibernateMemberDAO.java:76)
        at  
edu.internet2.middleware.grouper.MemberFinder.internal_findOrCreateBySub 
ject(MemberFinder.java:139)
        at  
edu.internet2.middleware.grouper.MemberFinder.internal_findBySubject 
(MemberFinder.java:123)
        at  
edu.internet2.middleware.grouper.MemberFinder.findBySubject 
(MemberFinder.java:53)
...
Caused by: net.sf.hibernate.exception.ConstraintViolationException:  
Could not execute JDBC batch update
...
Caused by: java.sql.BatchUpdateException: Batch entry 0 insert into  
grouper_members (member_uuid, subject_id, subject_source,  
subject_type, id) values (5add0097-84b4-4c79-9e41-2588c622bd52, foo,  
umrsa, person, 0d61f1c2158669ff01158726d47a0013) was aborted.  Call  
getNextException to see the cause.
...
JDBCExceptionReporter:58 - ERROR: duplicate key violates unique  
constraint "grouper_members_subject_id_key"
...
SessionImpl:2400 - Could not synchronize database state with session

?

I welcome advice regarding threads and Grouper.

Thank you,
Tom