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Manual
18

JPA Entity Fields

for loading a field is relatively slow. Therefore, if the employees field is used often, a persistent
Forum
8

500Mb ObjectDb database opening issue

Hi, I have observed that 500 Mb objectDb database opening time is very slow (~3 seconds ... ): doOpenDataStore(): openDataStore: D:\odb\files\anritsu\T1792 Slow Open.odb.pa3 1/23/2016 15:40:24.4024 ... Slow Open.odb.pa3 1/23/2016 15:42:48.4248: INFO : (AppDataStoreManager.java:257 thread:Thread-6
Issue
4

combined index not used

shows that it is indeed very slow. Could you please provide a typical value for the ?1 (end date ... ). However, this query is still extremely slow as using this composite index doesn't solve the problem ... is very slow is not because of not using the composite index (although using the composite index
Forum
4

Query execution time issue

execution time drops to about 50 milliseconds. Adding a new left join on remaining 8 slows down query ... are expected to be slow, but if you can post a simple minimal runnable test case (see posting instructions) that demonstrates the slow query, then we can check it. Hi,  I've attached a test db. Running
Forum
4

Speed of queries that return many objects

... still seems slow. Thanks EKK import java.io.Serializable; import javax.persistence.Entity; @Entity public ... issue - slow performance on the Mac. Latest JDK 1.8 , and newest Mac Attached is the sample application ... (100ms). On Mac is very very slow (3sec). Are you sure that this is the same issue of a slow query
Issue
3

each 1-2 days objects on some objectdb level lock/block each other

queries that are too slow (and a few seconds could also be considered by users as slow), e.g. by ... about that? If your clients use a web application they may refresh the page if the response is too slow ... of concurrent threads works better. How do you know that the system is near to collapse? Slow response time
Forum
3

Homepage and forum nearly inaccessible

now. If there are still issues with the website, please report. Thanks!   It is still very slow ... even load at all. Sometimes it happens to load fast, but most of the time it's slow or very slow ... that are slow now (such as searching and posting) are expected to be much faster. Thank
Issue
3

log entry and massive performance issues

you get that log error once or is it repeating? Does it happen when the slow removal happens ... Do you know how to reproduce the slow removal problem using this database? You wrote: > the ObjectNode ... is somehow corrupt (we did the last repair last ween with 2.7.4_02 Doctor)? In addition to this slow behaviour
Forum
3

Performance in large transactions

.)   Pseudocode for the fast and the slow solution FAST: for (i = 0; i <100; i ... (); transaction.close(); entityManager.close(); } SLOW: EntityManager entityManager ... .setFlushMode(FlushModeType.AUTO);   em.getTransaction().begin();   // SLOW   long startTime
Forum
3

Performance tuning, best practices

. The system serve 200 clients, but is it possible that the specific slow operation (possibly a complex query) is slow also for a single user? i.e. can you check if the performance issue is due to load of several concurrent clients, or maybe same slow performance is also for a single user with that specific