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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. edy_at_ssn Edy Oey ...  per stored entity object. A batch load should reuse the EntityManager and persist a large

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

persistence.xml ). Batch Store Storing a large number of entity objects requires special consideration

) at com.objectdb.o.IXM.run(IXM.java:338) at java.lang.Thread.run(Thread.java:745) * Batch ended at 88 ... to an existing Database and create 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

optimization: objectdb.temp.no-btree- batch objectdb.temp.no-multivar- batch Setting them as " true ... 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. support

the command line or batch file? The conf file cannot be used to state which jvm is being used? cmahony ... application. So how do I do server -b -client? cmahony Craig Mahony Hi. I fumbled around with batch files

entity manager and following the batch shown at https://www.objectdb.com/java/jpa/persistence/store# Batch _Store_ . However the problem is that it seems that even calling flush followed by clear

. You can try deleting these objects in batches , using several transactions, each transaction will delete

You provided the "InsertTest" in the following post, and say "On Intel Core 2 Quad Q6600 (and enhancement) it persists 340,000 objects per second". Insertion Speed Rate and Batch Load Now, ten years later, I run it on Intel Core i5-5300U (2.3Ghz) with 8GB memory, output is 45000 per second

found which works consistently is to load and remove objects (one by one or small batches

. Meanwhile, you can run the query in LAZY mode , and then data from the database will be retrieved in batches

: * How can i see the low level batch SQL operations before flushing the merge. So i

, MySQL workbench. We can write methods to batch the process, but this becomes annoying if we need

and will be loaded lazily. If changing the schema is difficult, try to process the  TCStep entity objects in smaller batches .   support Support

in the log: index sstsedt cleared then it reports reports about the batches and finally

the log file "Index activation batch completed..." when the new index building is done. If it doesn't

of the primary key of the last object in one batch as a constraint in the next query execution

response !   That fixed it.. Have now split transactions into batches of 1000 recs

of a 6hr batch ! Its odd as this is one of our "queue" database and many similar message objects ... -down test as soon as I can. The same batch did not produce the error in versions earlier than 2.3.5_05 ... it. At the moment it only seems to occur in a real application batch and this is too heavy to send as an example

and close the EntityManager for batch operations we use ThreadLocal for storing EntityManagers:   ... (if not exists), do the operations using EM in ThreadLocal, on batch end we commit transaction,delete from ... ... Regarding the batch operations, where we usually do update on many objects and after that commit

single user mode (i.e. batch background load) or do you need multi threading support? Why don't ... is every combination.     Can we assume single user mode (i.e. batch background load) or

indexes then massive scan of database data pages is required. This may be appropriate for a batch