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14

OutofMemory error with Object DB 2.0

which was enabled in default conf: <!-- ObjectDB Configuration --> <objectdb> <general> <temp path="$temp ... " password="true" /> <log path="c:/temp/odb/log/" max="8mb" stdout="false" stderr="false" /> <log-archive path="c:/temp/odb/log/archive/" retain="90" /> <logger name="*" level="fatal
14

Performance tuning, best practices

are: <!-- ObjectDB Configuration --> <objectdb> <general> <temp path="$temp" threshold="64mb" /> <network inactivity-timeout="0" /> <url-history size="50" user="true" password="true" /> <log path="$objectdb/log/" max="8mb" stdout="false" stderr="false" /> <log-archive path="$objectdb/log/archive
14

Connection is closed Caused by: java.io.EOFException

with jdk1.6.0_17 My conf is close to the default <objectdb> <general> <temp path="$temp/ObjectDB" threshold="64mb" /> <network inactivity-timeout="0" /> <log path="$objectdb/log/" max="8mb" stdout="false" stderr="false" /> <log-archive path="$objectdb/log/archive/" retain="90
14

significant performance decrease

path="$temp" threshold="64mb" /> <network inactivity-timeout="0" /> <url-history size="50" user="true" password="true" /> <log path="$objectdb/log/" max="8mb" stdout="false" stderr="false" /> <log-archive path="$objectdb/log/archive/" retain="90" /> <logger name="*" level="info
14

locks on pure query activities

> <general> <temp path="$temp" threshold="64mb" /> <network inactivity-timeout="0" /> <url-history size="50" user="true" password="true" /> <log path="$objectdb/log/" max="8mb" stdout="false" stderr="false" /> <log-archive path="$objectdb/log/archive/" retain="90" /> <logger
14

Replication Issue

<!-- ObjectDB Configuration --> <objectdb>         <general>                 <temp path="$temp" threshold ... " user="true" password="true" />                 <log path="$objectdb/log/" max="8mb" stdout="false" stderr="false" />                 <log-archive path="$objectdb/log/archive/" retain="90
2

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

of these settings): <!-- ObjectDB Configuration --> <objectdb> <general> <temp path="$temp ... ="true" password="true" /> <log path="$objectdb/log/" max="8mb" stdout="false" stderr="false" /> <log-archive path="$objectdb/log/archive/" retain="90" /> <logger name
2

javax.persistence.TupleElement

javax.persistence Interface TupleElement<X> Subinterfaces: CollectionJoin, CompoundSelection, Case, Coalesce, In, SimpleCase, Expression, From, Join, ListJoin, MapJoin, ParameterExpression, Path, PluralJoin, Predicate, Root, Selection, SetJoin, Subquery The TupleElement interface defines an element
2

Unable to stop server after starting in SSL mode

../objectdb.conf stop objectdb.conf (SSL mode - masked): <objectdb> <general> <temp path ... " user="true" password="true" /> <log path="$objectdb/log/" max="8mb" stdout="false" stderr="false" /> <log-archive path="$objectdb/log/archive/" retain="90" /> <logger name="*" level="info
2

javax.persistence.criteria.Selection

javax.persistence.criteria Interface Selection<X> Superinterfaces: TupleElement<X> Subinterfaces: CollectionJoin, CompoundSelection, Case, Coalesce, In, SimpleCase, Expression, From, Join, ListJoin, MapJoin, ParameterExpression, Path, PluralJoin, Predicate, Root, SetJoin, Subquery The Selection

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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