10 | OneToMany and cascade delete problem thread "main" [ObjectDB 2.x] javax.persistence.PersistenceException Failed to write the value of field ... .error.UserException: Failed to write the value of field field com.objectdb.test.bug.forum.T501$Store ... .write(UserMember.java:544) at com.objectdb.type.user.UserMemberList.write(UserMemberList.java:516 |
10 | Improvement in replication do only few writes (mostly reads), but those writes are important for us - objects rating, profile modifications ... and all writes fails. I was thinking about special version of one master / one slave only cluster ... yet, and therefore, if the slave accepts write operations they may be based on a state, which is not the most up to date |
10 | using DbUnit with ObjectDb JDBC connections and the only way to load data is by using JPA or JDO, i.e. by writing code ... are often automatically annotated with JAXB, so writing lists of entities to xml file should be easy - a generic mechanism to read / unmarshall those files into lists of entities for writing to database |
10 | Which storage fits best to ObjectDB? is reading/writing the files. The tests are showing that the HW RAID5/6 of HDDs deliver comparable ... , so in fact it means sequential reads/writes. If it is tested on small files the speed is getting ... read/write the DB files by large chunks and then it parses it within the RAM (so it would mean |
10 | Replication error on slave restart recording to write operations: <recording enabled="true" sync="false" path="." mode="write ... ="." mode="write" /> <locking version-check="true" /> <processing cache="64mb" max-threads="8 ... " /> <recording enabled="false" sync="false" path="." mode="write" /> <locking version-check="true |
10 | use of Singleton into tomcathi all. i would write a class singleton that encapsulate the entitymanagerFACTORY into ... the class singleton i would write a set of method for the operation for example with serarch for name ... ){ //code for update into db } but i ask if the metods for update, write . read , create Users |
9 | Replication Question availability and fault tolerance? Unless the application is read only and no write, as long as the master goes ... both read and write will always be going to the master and the load is never distributed ... ) - Not for Read+Write failover? Thank you. Trianglehead Json Error Not exactly. You should be able |
9 | ObjectDB Clustering VS Hadoop Hbase which WRITE requests are served by one master server and READ requests can be served by all the servers ... between nodes. All the servers handle WRITE requests and READ requests of data that they manage ... and when there is a need for more than one server to handle WRITE requests. support Support As you said |
9 | Database size is much larger than expected (x2)_03] javax.persistence.RollbackException Failed to commit transaction: Failed to write the value ... ) Caused by: javax.persistence.PersistenceException: com.objectdb.o.UserException: Failed to write ... :78) ... 5 more Caused by: com.objectdb.o.UserException: Failed to write the value of field field |
9 | Too many persistable types (>10) - exceeds evaluation limit> </persistence> smuessemeier Stefan Müssemeier Maybe you are writing to a database ... it. And if other entity types are in the db I would expect the error message to occur at the begin of the writing. But the writing is ok. Everything is written correctly as far as I can tell. When I start reading the data |
