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Manual
88

Storing JPA Entity Objects

explicitly in the persistence unit definition (in persistence.xml). Batch Store Storing a large number ... ().commit(); Splitting a batch store into multiple transactions is more efficient than using
Forum
38

Insertion Speed Rate and Batch Load

to 100K/second. I can definitely do 80K inserts/seconds on Oracle with batch insert on table with one primary key. 2. Is batch update/insert operation supported? I attached the files. This test from ... object. A batch load should reuse the EntityManager and persist a large number of objects
Forum
35

Significant I/O costs during batch update or insert data.

Our application has some complex entities. We do batch update(merge detached entity) every 2 minutes. We find the period significant IO costs these days, and disappeared when turn off the batch updating. 1.ObjectDB is in embedded mode. 2.ObjectDB version is 2.3.7 3.Database file size is nearly
Forum
11

ODB IndexActivation NullPointerException

) * Batch ended at 88 I've read that: "Indexing large amount of data may take considerable processing time ... an EntityManager. 1) sometimes the following System out: * Batch ended at '2LG' * Batch ended at '2LG' * Batch ended at '2LG' * Batch ended at '2LG' * Batch ended at '2oq' * Batch ended at '2LG
Issue
5

NullPointer on query

within the application but only towards the end of a 6hr batch! Its odd as this is one of our "queue" database and many ... a pattern but will post a cut-down test as soon as I can. The same batch did not produce the error in ... it only seems to occur in a real application batch and this is too heavy to send as an example (6hrs
Forum
5

Left join fetch behaviour doesn't retrieve children?

some query optimization: objectdb.temp.no-btree-batch objectdb.temp.no-multivar-batch Setting ... ) will disable two query optimizations, e.g. with JVM args: java ... -Dobjectdb.temp.no-btree-batch=true -Dobjectdb.temp.no-multivar-batch=true Please report if disabling these optimizations makes any difference
Issue
4

NullPointer when accessing entity field

for batch operations we use ThreadLocal for storing EntityManagers:  - we create EntityManager ... ), do the operations using EM in ThreadLocal, on batch end we commit transaction,delete from ThreadLocal and close ... do the operation and close EM, so the objects are inmediatelly detatched... Regarding the batch
Forum
3

Client server mode no longer works after JRE install

/5941796/no-server-jvm-at So this can only be done from the command line or batch file? The conf ... is being started from a java application. So how do I do >server -b -client? Hi. I fumbled around with batch files and now think I have it working ok. Thanks for the help.
Issue
3

Use temporary files to enable very large transactions

are in that huge transaction? Can we assume single user mode (i.e. batch background load) or ... is every combination.     Can we assume single user mode (i.e. batch background load) or do you need multi
Issue
3

ArrayIndexOutOfBoundException

deletes several entities in batch. Is this again some concurrency issue? I was inspecting the code and meanwhile one thread was deleting several entities of this type (in batch), second thread persists