About PESSIMISTIC_READ

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6

Failed to read DB file while online backup is running

Hi, it happened already few times (seemingly randomly), that some db operation (read and also write ... ._JdoUserException: Failed to read from file '/path_to_db/dbFile.odb' NestedThrowables: java.io ... to read from file '/path_to_db/dbFile.odb' NestedThrowables: java.lang.NullPointerException
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6

Error 363 - Failed to read value of inverse relationship

Explorer, however when I try to read the Event type, I'm getting the following exception. As far as I ... .persistence.PersistenceException Failed to read the value of field com.pvdc.model.entity.EEvent ... .UserException: Failed to read the value of field com.pvdc.model.entity.EEvent.town using reflection at com
Forum
6

Error reading UTF string

.objectdb.o.InternalException: Error reading UTF string at org.jboss.as.ejb3.tx.CMTTxInterceptor ... ] Caused by: java.lang.UnsupportedOperationException: com.objectdb.o.InternalException: Error reading ... reading UTF string at com.objectdb.o.BYR.R(BYR.java:1214) [objectdb-jee.jar:] at com.objectdb.o.BYR.R
Forum
6

Failing to read entities under load in multithreaded tests

Hi, We are experiencing an issue in our application that only occurs under load - we sometimes fail to read entities from the database. I've isolated this issue to a fairly simple test case ...  that creates, reads and updates these entities in multithreaded application it sometimes fails to read
Issue
6

Error reading UTF string (Serialized Objects in Explorer)

is probably not specific to the query. It seems that there is a problem in reading the pricing field ... have the serializable class, which is needed during read. Please check this query (and accessing
Issue
6

Exception Failed to read from file

Hello, we have found several these exceptions in our log [ObjectDB 2.5.0_06] javax.persistence.PersistenceException Failed to read from file 'C:\SafeQORS\server\cache\MainORSCache.odb' (error 117 ... .UserException: Failed to read from file 'C:\SafeQORS\server\cache\MainORSCache.odb' at com.objectdb.o
Forum
6

Failed to read the value of field using reflection

I have recently encountered an issue with reading objects: Exception: com.objectdb.o.UserException Message: Failed to read the value of field field Character.stats using reflection Stack Trace: com.objectdb.o.MSG.d(MSG.java:75) com.objectdb.o.UMR.P(UMR.java:934) com.objectdb.o.UMR.B(UMR
Forum
6

Intermittent Exception "Attempt to update types in read only mode"

" [ObjectDB 2.4.1_06] javax.persistence.PersistenceException Attempt to update types in read only mode (error ... .java:48) Caused by: com.objectdb.o.UserException: Attempt to update types in read only mode
Issue
6

InternalException - error reading field from "queue" database

(Unknown Source) ... 4 more Caused by: com.objectdb.o._PersistenceException: Failed to read ... ) ... 6 more Caused by: com.objectdb.o.UserException: Failed to read the value of field field rbccm.felix
Issue
6

Read only hint for query

Second thing after @FetchGroup I've found is read-only hint for EM. You can specify this hint to EM when executing query meaning that returned data will never be edited or persisted. My understanding ... .setHint("odb.read-only", "true"); This could be useful in situation when you are sure, that you won't