 6 | Hi! Does ObjectDB keeps and reuses a pool of connections as MySQL JDBC driver does? I mean ... instance manages a pool of connections and reuses them when it creates new EntityManager instances. By default the maximum connection pool size is 50. You can change it in the persistence.xml file |
6 | on three separated ObjectDb servers at the same time? com.objectdb.o._PersistenceException: Connection is closed due to UserException: Connection is closed com.objectdb.o._PersistenceException:45 com.objectdb.o.JPE ... , because if the database connection is closed, further attempts to close it are not necessary. kevinwh |
6 | a connection to the ObjectDB server. It happens on every start of the Context. If it fails ... restart tomcat. Other JPA providers are able to fetch the Metamodel without connecting to the DB. I ... . If invoked before first connection to the server - the persistence unit model is analyzed locally on the client side. mosi0815 lwalkowski |
5 | how to connect the data base on a remote server and share odbc in object db how to publish the JPA database on server and make client in the network can share the data base i want to know the right connection string. i used "Map properties = new HashMap |
5 | My questions is about : 1-) Can objectdb server handle 200.000+ connections at the same time concurrently ? Does it have queue and cache ? 2-) is it dangerous to use that system on many online users ... . ObjectDB doesn't limit the maximum number of allowed concurrent connections, but they are limited by |
5 | Hello! I use Spring Data JPA. It uses the Metamodel to create repository beans. This triggers a connection to the ObjectDB server. It happens on every start of the Context. If it fails ... restart tomcat. Other JPA providers are able to fetch the Metamodel without connecting to the DB. I |
5 | I am trying to connect to remote server using VPN using user1 However, the server terminated the connection and emitted below in the server log. --------------------- [2018-04-14 13:13:33 #2 server] java.lang.ClassCastException: java.base/[Ljava.lang.Object; cannot be cast to [[B at com |
5 | , etc. Thank you very much for you reply. However, do you know why the connection cost in objectdb 2 is higher |
5 | Is there any way to find out the number of current connections to the DB server? Currently not. You may subscribe to this feature request and update it according to your needs. natmaclin |
5 | It would be useful if instead of creating a web service layer on top of a database, I could just set up permissions to entities and entity variables for client connections. This would be beneficial when providing specific raw data where additional business logic is not required. I suppose |
