ObjectDB Database Search

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Server Configuration

The configuration element specifies settings for running an ObjectDB Server . The server ... configuration file contains the following element: The element The element specifies how clients can connect to the server : The port attribute specifies the TCP port on which the server listens for new

Mismatch client-server protocol prefix

.springframework.orm.jpa.JpaSystemException: com.objectdb.o.UserException: Mismatch client - server protocol prefix ... client - server protocol prefix] with root cause com.objectdb.o.UserException: Mismatch client - server ... :757) I checked multiple times if the versions match. They do. DB server version 2.6.2. Client

Online Backup in client-server mode

Hello, we have issue with online-backup when using client - server mode ... efficiently as the embedded mode does it. thamal Tomas Hamal Actually in client - server mode ... file is created on the server and then, when ready, downloaded to the client . This is useful

SSL cannot connect from client StackOverflow error

Hello, i am trying to set up the SSL for connections to objectDB server . I cannot connect the Client , when SSL is enabled. I can connect from Explorer, when "Use SSL" is checked, isn't there some option, which I missed on java client side? I read https://www.objectdb.com/java/jpa/setting/ssl

Cannot connect with client

version is used on both the server side and the client side. support Support I'm pretty sure ...  https://www.objectdb.com/download/2.8.6_02 on the server , and when I downloaded https://www ... ://www.objectdb.com/download/2.8.6_02 for client instead of use the full version.  Problem solved. thx Trianglehead Json Error

Server connection management

the client deal with broken connections or server restarts. Does the client have an internal connection ... fails on the client side - the client automatically tries to reconnect to the server ... replicated servers that can be connected automatically by the client (in read only mode) in case the main

Connecting to a remote objectdb server

I am trying to configure my application in a client - server objectdb setup via tcp/ip. So I first ... ; The objectdb: prefix is used on the client to connect to the database. On the server you just specify ... . That means our app is not connected to db server even if I had configured our client app like

Server closes if large query runs out of memory

query is run on the server , results are sent to the client and deleted there. This enables full synchronization of the client and the server , but very inefficient if you delete a lot of objects. In JPA: a DELETE query is run directly on the server , objects are not sent to the client . This may break

Single Server License and Embedded Mode

to run the database later. Activation is the same for client - server mode and embedded mode. Maybe ... We have an application that runs on a single server in embedded mode to write server million records.  Is it possible to use the single server license for embedded mode use?  I've looked

Error when I switch to server mode

a client - server mode. Somehow the type of the object is unknown on the server side - but I couldn't reproduce the exception, since normally the client registers types with the server before ... I was previously using embedded mode without any problem.  Today I tried to switch to server

OutOfMemory in Server

Hello, I was getting OOM from ObjectDB Server with 10G Xmx, so I raised to to 15G, but when I ... has 11GB. The stacktrace from ODB Server : [2023-08-03 15:00:36 #64 server ]  java.lang ... ;     at java.base/java.lang.Thread.run(Thread.java:833) The stacktrace from ODB Client log

Intermittent Server Shutdowns Due to Out of Memory (OOM) Issues

could be clients that do not close their connections to the server (i.e. closing the EntityManagerFactory ... Dear ObjectDB Community, I am encountering a recurring issue where the ObjectDB server ... resources to the server (90GB total memory on the VM), the java process hosting ObjectDB

ObjectDB Server Connection Permissions

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 ... though. Is this possible using ObjectDB Server or would this be a new feature request? ThreaT Ashton Hogan Type level

Schema Update

the specified schema updates every time a database is opened. When you use client - server mode, the instructions should usually be on the client side, where the up-to-date classes are located. The following

Date and Time in JPQL and Criteria Queries

once on the client side, these expressions are re-evaluated on the server each time the query is executed ... JPA defines special JPQL expressions that return the date and time from the database server

Server crash - Mismatch client-server protocol prefix

the entire server on which it's running.  The only recorded symptom is a client -side error ... Mismatch client - server protocol prefix (error 523) at com.objectdb.jpa.JpaQuery.getSingleResult ... :679) Caused by: com.objectdb.o.UserException: Mismatch client - server protocol prefix at com.objectdb.o

Database Replication and Clustering

is a standard database that is managed on a standard ObjectDB database server . Any ObjectDB database on a server can function as a master database in a cluster, but databases in embedded mode ... databases Setting up slave databases is straightforward. You only need to run an ObjectDB database server

virtual servers and one file

Hi ObjectDB Team In the past, we have often found that our customers use virtualized servers ... instead of a few milliseconds. Copying the database to an explicit server solves the problem ... files access and only part of the virtual file is in the virtual server's cache. Have you ever heard

Standalone server needs dependencies?

When I connect to embedded server it works good.  But when I connect to a standalone server ... had to export my persistence classes to a jar in the server and add it to the class path when starting the server .  There is nothing in the Docs that mention this, so I am wondering if I'm doing it wrong

How to start a objectdb server with new Daemon (without blocking the thread)??

I am planning to use objectdb+jetty on Google compute engine server for my next project. But it seemed starting the server will block my thread. Any instruction to avoid thread blocking?    ... a server . If you want to run an ObjectDB Server from your code, you can call:     

Finance data from SQL Server into ObjectDB daily

this make sense? Is there a way to map the structure of the table directly into ObjectDB from SQL Server

objectdb on single server 20TB storage possible ?

objectdb on single server 20TB storage possible ?

objectdb.conf Information

Hello, Is it possible to get detailed information on objectdb.conf client vs server ? We do have an objectdb.conf for our client and one for our server instance. Now there're several questions: - Which config entries are relevant for the client and which one for the server ? I.e. what about: we want

ObjectDB Server not able to handle large collections

client - server mode. Using objectdb version 2.8.8.b05 When switched to embedded mode, the migration ... for an object in client - server mode, which is about 2GB. Usually an "Attempt to persist an object ... when you switched to client - server mode. There are currently no plans to support objects larger than 2GB

Failed to commit transaction: Attempt to commit a rollback only transaction

client / server mode and go back to embedded?   dmoshal David Moshal Could you run the  ... David Moshal Was able to replicate this error by running 2 clients against the same database server ... should be done on the server side rather than on the client side. Please try the following: Switch

EntityManager creation taking long time

seconds to return. CAPdev CAP Dev Is it client - server mode or embedded mode? If client - server mode, are the client and server on the same machine/VM? Do you see anything relevant in the ObjectDB log files (check both client and server log files if client - server is used). If you try

Problem with distinct select, order by and equivalent alias/attribute path

it out in the example project but pointing from there to the ( client - server -based) database that is used by the "real" project. In client - server -mode I still get the exception about the invalid ... is probably simple. The system property is checked on the server side, so in client server mode

Pessimestic Locking doesn't release when application unexpectedly terminates.

;   Is there anyway the server can detect that a client (lock owner is no longer connected ... adds automatic release of pessimistic locks on client - server disconnection. The locks are released by the server as soon as the client disconnects (with no delay), but if the client later

newbie - lots of exeptions

an ObjectDB version at the client side and keeping the server running. Try restarting the server ... Hi  I'm very new to objectdb . I have bought a server and really want to use it. Our code ... to work. realy wierd things are going on ... we are using hessian to connect our remote clients

UTF Error

version, 2.8.8, on both the server side and the client side? If you still get this exception with version 2.8.8 please post the up to date stack trace. support Support The Client side is 2.8.8 (a maven ... . server .HttpHandler.runService(HttpHandler.java:182) at org.glassfish.grizzly.http. server .HttpHandler

Double persist of Entity field with Cascade.ALL

String chapterTitle; The idea is that after I make changes to the Book class on the client side (i.e. by adding or removing new Chapters), merging the Book class on the server side should result in ... to the Book entity ON THE SERVER SIDE, then the Chapter table is OK (no duplicate records). I

WebSphere Liberty Configuration

Hi! I've been trying to get ObjectDB configured with WebSphere Liberty server . I have been able ... Edition application component. This condition can occur when the JNDI client using the java:comp/env name does not occur on the thread of a server application request. Make sure that a Java EE

jakarta.persistence.EntityManager

almost complete responsibility for cleanup and exception management on the client ... of individual entity instances. The client may persist and remove instances, find entities by ... , detaching all its entities, by calling clear . The client may also make changes to the state of an entity

Database Management Settings

The configuration element specifies back-end (database engine) settings for the server and for embedded mode. The default configuration file contains the following element: The element The element specifies the database file and page size settings: The initial attribute specifies the initial size

jakarta.persistence.EntityManagerFactory

complete responsibility for cleanup and exception management on the client , and is thus considered ... control to the client . Parameters: work - a function to be called in the scope of the transaction ... . Finally, the EntityManager is closed before this method returns control to the client . Parameters: work

Server NPE

I'm getting the following NPE when attempting to persist an object to a server based database: [2011-11-13 09:11:47 #11 server ] java.lang.NullPointerException at com.objectdb.o.UTT.z(UTT.java:311 ... with a server -based database - 2 writing to the db, one reading. I had added an index to a property

Generating new activation code gives 500 server error

Generating new activation code gives 500 server error

Step 7: Run the Spring Web App

redirection to the  controller path: If Tomcat 6.0 is installed as a server in your Eclipse -  ... ), selecting  Run As Run on Server , selecting the Tomcat 6.0 server and clicking Finish . To install a new server check the Manually define a new server radio button (after Run As Run on Server

JPA Web App Tutorial - Maven Project

.xml file) and port 8080 has to be available for the Jetty embedded server . No need to download and install ObjectDB or a Java web server - Maven will download the ObjectDB jar and the Jetty embedded server automatically. When the Jetty server is ready - open your browser at http://localhost:8080

Spring MVC JPA Tutorial - IntelliJ Project

the Server : Select  File Settings Application Servers . Add Tomcat 6 Server if not set already (Tomcat ... , click the  + icon and select  Tomcat Server Local . Enter a name (e.g.  Guestbook

Step 1: Create a Java EE 6 Web Project

a Project Name (e.g. Guestbook ). Select GlassFish Server Open Source Edition 3 (Java EE 6) as the Target runtime. Note: You may have to add GlassFish 3 as a new server by clicking the New Runtime... button and the Download additional server adapters link. Follow the instructions and specify the path

UTF Error

and the server (2.8.4 and 2.8.5_06). Does upgrading to the same version, 2.8.5_06, on both the client ... a test 2.8.5_06 server on the database file. When accessing the data with 2.8.5_06 client ... application is still using 2.8.4 objectdb, and when the 2.8.4 client accessing 2.8.5_06 server

Negative snapshot user count exception

to see this issue, as well as the mismatch client - server protocol prefix failure, and some other problems ... shows up a number of times, and today at 10:14 AM PDT we started getting the mismatch client - server ... , the "Negative snapshot user count" and the "mismatch client - server protocol" errors could be caused by

jakarta.persistence.EntityTransaction

that the database server should set the timeout Since: Jakarta Persistence (JPA) 3.2

InvalidClassException

(which should be found in the log file) can help in understanding the context. If you are using client - server mode please make sure that the server and client sides share the same ObjectDB version. support Support ... ] Unexpected exception (Error 990)   Generated by Java HotSpot(TM) 64-Bit Server VM 1.8.0_71 (on Linux 4

JPA Web App Tutorial - NetBeans Project

Project . Run the project: Select Run Run Main Project... (or F6 ). Choose or define the server and click

Step 3: Add a Context Listener Class

. The database will be closed when the web application stops (or when the web server shuts down), by closing

Step 1: Create a Maven Web Project

the project node and checking that the  Run As Run on Server command is available

NetBeans/JPA Web Application Tutorial

This is the NetBeans version of the  JPA Web App tutorial. It demonstrates how to create and run a database driven Java web application in NetBeans - using Tomcat 6 Apache Tomcat Server 6.0 ( some modifications are needed for Tomcat 7.0 ), ObjectDB and JPA. The demo web

Java EE JPA Tutorial - Maven Project

. You will have to deploy the generated WAR file in your GlassFish server . You may also open and run the Maven