About recording
Database Transaction Replayer
Explains how to use the ObjectDB object database Replayer tool to restore recorded Java/JPA/JDO actions.... record its internal engine operations in special binary recording (journal) files. Recording is enabled by default and can be disabled in the configuration . ...
Database Management Settings
Explains settings and performance tuning of the ObjectDB Java object database for JPA/JDO.... path = "." max = "128mb" /> <recording enabled = "false" sync = "false" path = "." ... The <recovery> element The <recording> element The <locking> element ...
Replaying recorded requests...
Hi, I get the following when ODB starts in embedded mode: Replaying recorded requests... then I get something like 500 lines of recordset information. Here is the relevant part of the config file: Questions: 1) Why am I seeing this if I've set recording enabled to false? 2) I... path = "." max = "128mb" /> <recording enabled = "false" sync = "false" path = "." ... Questions: 1) Why am I seeing this if I've set recording enabled to false? 2) Is this because I'm somehow not closing a ...
find repeated records by JPQL
Hi, I know a single command in MySQL can find repeated records: Select * from TTT t where id in (select id from TTT s group id having count(id)>1) I dont know how to do this using JPQL, but I use query from 430,000 records and put them into hashmap, finally it cost one hour and failed: #1 2011-08-18 14:09 Hi, I know a single command in MySQL can find repeated records: SELECT * FROM TTT t WHERE ...
Allow to see more records on website
Not sure if we should post this here but there're a "Website" Marker type for issue so I'll try that. It'd be great to see more records on your website at once (i.e. in the task tracker, forum etc. etc.) and to customize that view how many items per page one would like to see. Website Version: 2.0.0 Priority: Low Status: Fixed Replies: 2 Type: Website ...
Safe Settings
Hi, I am trying to set up ObjectDb in a safe way that allows turning the machine off while database transactions are running. I would like to test if things are really safe and if I don't get corrupted database files in any possible case. I found "recovery" and "recording" in the objectdb.conf file. Which one is safer to use? I suppose I should turn on sync="true", right? ... in any possible case. I found "recovery" and "recording" in the objectdb.conf file. Which one is safer to use? I ... mechanisms for recovery from failure: Recording (transaction log). Recovery (double writing). ...
Database Replication and Clustering
Replication enables maintaining up to date version of an ObjectDB database on multiple nodes.... can function as a master database in a cluster. Recording has to be enabled, but no other preparations or settings are ...
ObjectDB Object Database Features
ObjectDB provides a rich set of features, many of them as the result of supporting the JPA and JDO APIs.... Additional recovery layer - support full transaction recording and replaying . Automatic ...
Replication error - parsing objectdb config
I'm trying to replicate a database using the following config: <server> <connection port="6136" max="100" /> <data path="$objectdb/db-files" /> <replication url="objectdb://localhost:6126/DEV1/NewMessagePipe.odb;user=admin;password=admin" /> </server> ... configuration seems fine. Please verify that recording is enabled for the master server (it is disabled by default since ... 2011-04-15 13:14 Recording is enabled: <recording enabled = "true" sync = ...
ORDER BY problem, when String starts with language specific character
Dear all, I have a problem with ORDER BY clause. I have a simple query: select u from User u order by u.name When the name starts with "normal/english" character, records are ordered correctly. But when it starts with language specific character like 'Č', these records are placed after records with normal charaters. So records with 'Č' are after 'Z', but this is not correct, because 'Č' is between 'C' and 'D'. #1 2011-06-23 09:24 Dear all, I have a problem with ORDER BY clause. I have a simple query: SELECT u FROM User ...
