Java DB

Apache Derby

Derby Server and Administration Guide

Derby Getting Started
Derby Reference Manual
Derby Developer's Guide
Derby Performance Tuning
Derby Server and Admin Guide
Derby Tools and Utilities
Derby Server and Admin Guide
-Part one: Derby Server Guide
-Derby in a multi-user environment
-Using the Network Server with preexisting Derby applications
-The Network Server and JVMs
-Installing required jar files and adding them to the classpath
-Starting the Network Server
-Shutting down the Network Server
-Obtaining system information
-Accessing the Network Server by using the network client driver
-Accessing the Network Server by using a DataSource object
-XA and the Network Server
-Using the Derby tools with the Network Server
-Differences between running Derby in embedded mode and using the Network Server
-Setting port numbers
-Managing the Derby Network Server
-Managing the Derby Network Server remotely by using the servlet interface
-Derby Network Server advanced topics
-Derby Network Server sample programs
-Part two: Derby Administration Guide
-Checking database consistency
-Backing up and restoring databases
-Replicating databases
-Logging on a separate device
-Obtaining locking information
-Reclaiming unused space

 

Controlling logging by using the log file

The Network Server uses the derby.log file to log problems that it encounters. It also logs connections when the property derby.drda.logConnections is set to true. The derby.log file is created when the Derby server is started. The Network Server then records the time and version. If a log file exists, it is overwritten, unless the property derby.infolog.append is set to true.

When the Network Server is logging connections, it also logs the Connection Number; this log message is written both to the derby.log file and to the Network Server console.

  • To turn on connection logging, you can use the servlet interface or you can issue the following command:
    java org.apache.derby.drda.NetworkServerControl 
       logconnections on [-h <hostname>] [-p <portnumber>] 
  • To turn connection logging off you can use the servlet interface or you can issue the following command:
    java org.apache.derby.drda.NetworkServerControl 
       logconnections off [-h <hostname>][-p <portnumber>] 
See the Derby Developer's Guide for more information about the derby.log file.
 

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