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EntityManagerFactory Fails To Swtich Over To Slave When Master Is Unavailable

="." mode="write" />                 <locking version-check="true" />                 <processing cache ... ="all" />                 <locking version-check="true" />                 <processing cache="64mb" max-threads="10 ... that failed to connect to the master server (which is down), but not the errors that you got. Please check

First query takes 4+ minutes to complete

="false" path="$objectdb/" mode="write" /> <locking version-check="true" /> <processing cache ... execution time should be very good, but if it doesn't, please post your test and we will try to check ... that demonstrates the issues we will check this further and we will also be able to check the second query

Doctor - high memory usage

. But since it is a background tool (integrity check can be done on a backup copy generated by the online backup) - I think ... with link to this database. lwalkowski Lukasz Walkowski I just checked the 64MB sample database. With 512MB max heap size (-Xmx512m) it works well with the default configuration - it took ~10 seconds to check

Query to search for common elements in two separate collections.

collections by identical hash code. Candidate collections should then be further filtered by checking ... ? if so, that's not what I was after. I just want to check if a collection contains an element ... until all have been checked. I just wasn't sure if there was something in the JPA that allowed me to put this into

2.7.3_03 Erroneous "Attempt to modify a primary key of a managed object"

reported in this thread). Could you please check version 2.7.3_04 (which disables the change ... _03 (and 2.7.3_05), but apparently it exposes an existing problem, due to an additional new check ... on an attempt to modify a primary key of a managed object. Older versions missed some checks that were added

Spring LTW Problem

. However, since annotations are checked using the Java reflection API - the check itself involves class loading. The stack trace indicates that an attempt to check annotations of some class leads to a failure due to a missing class in the classpath. Maybe future versions of ObjectDB should check annotations by reading

Occasionally slow requests in load testing

during query processing. Check the active query. Maybe you have to define a new index or rephrase ... " /> <recording enabled="false" sync="false" path="." mode="write" /> <locking version-check="true ... for checking: Smaller processing => max-threads (the default is 10 and you are using 400). Different

JVM crash when using IBM JDK 1.6.0

/jpa/EMF.createEntityManager(EMF.java:160) 4XESTACKTRACE at com/ibm/check/cmvc2git/database/Database.<init>(Database.java:52) 4XESTACKTRACE at com/ibm/check/cmvc2git/CMVCSync.runCommand(CMVCSync.java:100) 4XESTACKTRACE at com/ibm/check/cmvc2git/CMVCSync

Selective merge/cascade of detatched entity

for this approach). All potential changes are checked with application logic before being committed to the database, so a commit will never fail. Any time an object is modified it is checked ... ); for (Salesman s : salesmen) em.merge(s); This appears to have the effect of checking and merging

Query Execution Error

check for map return first as there might be null values): SELECT DISTINCT $1 FROM com.lexware ... .model.mitglied.MitgliedDebitorenKontoFragment')) IS NOT NULL)))) Whereas putting the null check in front and after that make the check for debitor=true still results in null pointer: SELECT DISTINCT $1

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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