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10

Memory leak with OutOfMemoryError exception

heap size (128MB) and this is not sufficient. You may try increasing the Java heap size by running ... cache size Query results cache size support Support Upping the max heap size to 256M has solved this problem. Thank you! banglo mohammad haroon
10

Replication error on slave restart

out how can I clean unused recording files or at least estimate sizing. Because I use objectDB in online game ... > <temp path="$temp" threshold="128mb" /> <network inactivity-timeout="0" /> <url-history size ... " /> </general> <database> <size initial="256kb" resize="256kb" page="2kb" /> <recovery
10

Replication issue, Replayer failing due to NullPointerException.

" /> <url-history size="50" user="true" password="true" /> <log path="/var/log/test/" max="10mb ... name="*" level="info" /> </general> <database> <size initial="10mb" resize="10mb" page="2kb ... -timeout="0" /> <url-history size="50" user="true" password="true" /> <log path="/var/log/test
10

internal object DB locking in an embedded multi threaded application

(mainly the initial database size). support Support If no conf file is found or provided then what are the default values? dansmith Daniel Smith The default values are: <size initial="256kb" resize="256kb" page="2kb" /> support Support <database> <size initial="500mb" resize="500mb" page="2kb
10

Empty temporary dat files in the temp folder

. - Is there a threshold? - Is the threshold adjustable? - Is it possible to reduce the initial size ... . Only one such file should be created per open database file with the initial size of 1000 pages (default page size is 2KB but it may be 8KB in your configuration). The file will expand to contain large
10

Left join fetch behaviour doesn't retrieve children?

("Number of children = " + myEntity.getEntityChildren().size());         }     }     @Entity ... = "      + myEntity.getEntityChildren().size());   } } @Entity public static class MyEntity {   @Id ... retrieved Duration : 22 seconds LAZY INIT on call size() on each collection ( 5 collections ) Start
10

Degrading performance overtime

-timeout="0" /> <url-history size="50" user="true" password="true" /> <log path="$objectdb/log ... ="21" /> <logger name="*" level="info" /> </general> <database> <size initial="51200kb ... size, you may start with that size as an initial database size, avoiding resize operations
9

Optimistic locking: prevent version increment on entity collection attribute

out to be false!     assertTrue(readings != null);     assertTrue(readings.size() == 2); } oudjanef Farid ... ()); // This works fine assertTrue(tmpDoc.getReadings().size() == 2); tmpDoc ... back from the DB assertTrue(tmpDoc.getReadings().size() == 0); em.getTransaction().commit
9

Performance and memory usage of queries

, so ObjectDB needs RAM in the size of the database itself. Obviously deleting the entire database file ... files also to enable very large transactions. Currently the size of the transaction (i.e. the total size of database pages that have to be replaced) is limited by the JVM heap size. support Support
9

find() cost unreasonable time!

) // Success for Inheritance Sonsection //@Cache(size=10000) @DiscriminatorColumn(discriminatorType ... )/1000f);    if (null==sons) continue;    int iCnt = sons.size();    System.out.printf("%d ... ;   int iCnt = 0;   while (queue.size()>0){    Nodes cur = queue.pop();    Nodes left = new

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.

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