ObjectDB ObjectDB

Internal Website Search

21-30 of 103 resultsRefresh

Speed of queries that return many objects

... still seems slow. Thanks EKK import java.io.Serializable; import javax.persistence.Entity; @Entity public ... during one of the calls to that method). support Support I have the same issue - slow performance on the Mac ... /age => If you try this on Windows, last call is working blazing fast (100ms). On Mac is very very slow

Query execution time issue

execution time drops to about 50 milliseconds. Adding a new left join on remaining 8 slows down query ... with excessive JOINs 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. support Support Hi

Homepage and forum nearly inaccessible

, please report. Thanks! support Support It is still very slow, and it has been like that for 1 year ... to load fast, but most of the time it's slow or very slow. Buy proper hosting, come ... /PHP to Java, and when this is ready operations that are slow now (such as searching and posting

Performance in large transactions

.) Pseudocode for the fast and the slow solution FAST: for (i = 0; i <100; i ++) { EntityManager ... (); transaction.close(); entityManager.close(); } SLOW: EntityManager entityManager ... .getTransaction().begin();   // SLOW   long startTime = System.currentTimeMillis();   MyEntity

Performance tuning, best practices

The configuration looks fine. 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

possible index required for improving query performance

", otherParty); query.setParameter("pclass", partyClass); We have noticed that this query slows down in ... for the slow query? Is there any other index that should be added to make this query faster? Thanks in ... back and started a test with an empty database. It slowed down significantly after a few thousands records

log entry and massive performance issues

of such an exception in the log? Did you get that log error once or is it repeating? Does it happen when the slow ... Do you know how to reproduce the slow removal problem using this database? You wrote: > the ObjectNode ... to this slow behaviour we have several times a day the situation that a normal select query is blocking

Table view freezes the program

on local machine. But it should not be this slow with 10 records. The query is not slow, but if yo just open table view like in the video it's slow/freezes. Trianglehead Json Error The attached ... data more lazily), but apparently it is less efficient with slow client-server connections

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

to optimise queries that are too slow (and a few seconds could also be considered by users as slow), e.g. by ... application they may refresh the page if the response is too slow (again and again, as ... ? Slow response time? support Support we monitor queries that need more than 5 seconds. Normally

queries under 2.7.6_4 significantly slower than under 2.7.6

help with selecting query plan hints to optimise other slow query plans we can help ... solution proceeds. If you can provide several different queries (that are known to be slow

Getting Started

ObjectDB is very easy to use. Follow the Getting Started Tutorial and the Quick Tour manual chapter and in minutes you may be able to write and run first Java programs against ObjectDB.

Prior knowledge or experience in database programming (SQL, JDBC, ORM, JPA, etc.) is not required, but some background in using the Java language is essential.

Need Help?

  1. Search ObjectDB website
  2. Read the FAQ
  3. Follow the Tutorials
  4. View or post in the forum
  5. Search or file an issue
  6. Contact support