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10

Storing a tree of data (depth=3)

(I've tried @OneToMany, @Embedded and @ElementList) A role is a performer (I've tried inside that class ... comment out the role part) One intention is that performer finally results in a separate table so I can query the list over all performers. When I'm trying to persist the movie the objectdb complains
9

One transaction or two?

performance. I don't expect a large difference but you may want to try both options ... appreciable difference in performance so I think I'm just going to leave it as a single transaction ... . Each task then gets a Persistence Manager from the factory, performs its transaction and then closes
9

Pre-detach loading: retrieval by navigation not working in if statement

-query @EJB with a specific loader that - after the em.find(id) is performed - executes selected ... me ages to finally find/identify this problem, as I did not imagine that performing the load access ... (); if (presentValue != null) {//Known to in fact be 'true' in database //Perform some
8

Occasionally slow requests in load testing

We are running load testing against objectdb version 2.3.7_18. The performance is generally OK, however there are quite a few "spikes" in the performance where we are getting a lot of very slow ... queries. We are running load test with uniform set of queries and the performance is OK in some cases
8

EM.find() is suddenly slower

We have a new performance bottleneck, if we use EM.find() on the same entity type 10.000 times in ... times we cannot see a performance bottleneck. @Entity public class EntityA { @Id @Access ... eager fetch that affects the performance of further operations. Could you please check build 2.8.6
8

Schema Update large refactoring

Hello, we want to perform a major refactoring of our package names and hence need ... , if it is possible to perform some sort of wildcard schema update, instead of specifying all the thousands ... , will there be any limit to the number of packages that we can specify? Will the number impact performance
2

Blocked by find

, this may just be slow performance rather than blocking. The attached test writes data to a db ... to maximise objectdb performance it'd be appreciated. felixobjectdb Richard Szurgot Extremely slow performance may be the result of using zero size page cache, which causes cache purge to be invoked
1

cannot delete objects after crash (see issue 2283)

Support thanks, we'll adapt accordingly hgzwicker Hans-Georg Zwicker Please monitor performance ... failure with lower performance hit. support Support ok hgzwicker Hans-Georg Zwicker our performance ... , and performing one sync of the recovery file before writing a group of updates to the physical database
0

javax.jdo.PersistenceManagerFactory

is to be considered read-only. ReadOnly set to false specifies that no updates can be performed
0

jdoNewInstance(sm)

Method javax.jdo.spi.PersistenceCapable PersistenceCapable jdoNewInstance( StateManager sm ) Return a new instance of this class, with the jdoStateManager set to the parameter, and jdoFlags set to LOAD_REQUIRED. This method is used as a performance optimization as an alternative to using reflection

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