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Using multiple databases

Is it possible for an ObjectDB PersistenceManger/EntityManager to connect to more than one database at a time? Also, can objects in one database reference objects in another database (e.g ... database connection requires a separate EntityManager/PersistenceManager. References to objects in
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using objectdb.jar in writing data to mariadb or mysql db

connections from over 200 users? Can it be efficiently used in client-server mode? Code exmples where possible ... (see this stackoverflow thread) and can serve 200 or more concurrent connections in client-server mode. kaybel
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Vacuum - Reclaiming Unused Space In Odb

, but if the slave and master servers are running and there is a connection between them then replication will be completed. Even if there is a failure, restarting the slave and the connection to the master
Issue
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query returns failed to read from database file

connection, factory ...). our startup immediately activies the webSocket server ( after creating the database connection, factory ...), hundreds of requests (including the queries) are then received
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Schema Evolution Question

must connect to ObjectDB before the restart or whether ObjectDB can be restarted while the client is down and then have the client with the upgraded schema connect. That is to say, is it valid to perform
Result
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[ODB1] Chapter 8 - ObjectDB Server

the connection URL string. 8.1  Running an ObjectDB Server The ObjectDB server is a pure Java application ... connections is specified in the configuration file (as explained in section 8.2), but you can override ... username and password can be shared by all the database connections. The following is a simple
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ObjectDB version 2.0.0

a bug in ObjectDB Doctor. Fixed persistence.xml C/S connection property to "javax.persistence.jdbc
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ObjectDB version 2.3.2

Version 2.3.2 Fixed a bug in "p.id IN :ids" queries. Fixed a bug in handling NOT = queries (issue #536). Fixed ClassCastException and NullPointerException in using a composite index in queries (issue #531). Fixed Explorer bugs: editing embedded objects and using connection urls. Fixed
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ObjectDB version 2.3.4

connection url. Fixed performance issue (fetch optimization) in range queries. Fixed cached result size
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ObjectDB version 2.4.0

connections on unexpected network failure. Improved temporary file management including avoiding