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1

IMK Stall with certain query

? Is there anything i can do? Thanks. No such known issue. The query looks fine. It could be slow
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1

Improvement in replication

for confirmations from all the slaves that they got the update since this could slow transactions. lwalkowski
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1

Index causes increased memory usage

, but that may slow performance. To understand the problem better you will have to provide information from
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1

Insertion Speed Rate and Batch Load

is too slow, that cause emf.close() catch a error. The speed is not good. Try running with the Enhancer Java
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1

InternalException using 2.3.7_12

been changed recently). A test case that demonstrates the exception will help. Sorry for the slow reply, I've
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1

Is 2 level cache in use?

the L2 cache may slow the application because of the overhead in keeping it up to date and the memory
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1

Is it ok to put list or map of embeddable objects in entity ?

would not be very efficient). I am not sure how ORM JPA implementations handle this. About the slow lazy
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Is it possible to remove parent/child entities without refresh?

We have a big entity object tree in our project. If I use the entityManager.remove(childEntity) method to remove a child entity a entityManager.refresh(parentEntity) is necessary in order to have an updated parent/child object tree in memory. But entityManager.refresh is too slow for our project
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1

Join query problem with new statetment

, but is quite slow - that is expected, because of some high number of objects to download. I forget
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1

JPA Configuration without persistance.xml

Hi,   I've been using Hibernate with JPA, and found it too slow, so am moving my project to use ObjectDB. My Jar is being held inside another application, so I don't want to have to rely on a persistance.xml file being in a particular place. When using Hibernate, I was able to do the following