Log4j

Log4j is used to retrieve logs from Java applications. Logs from Log4j can be sent to the Logmanager server via Syslog protocol.

Log4j version 1

You need to find the configuration file for Log4j in the Java application. It is typically saved as logging.properties file or log4j.properties file.

Edit the configuration file:

rootLogger = DEBUG, udp

appender.udp = org.apache.log4j.receivers.net.UDPAppender
appender.udp.RemoteHost = <Logmanager_IP_address>
appender.udp.port = 514
appender.udp.layout.type = org.apache.log4j.PatternLayout
appender.udp.layout.ConversionPattern = java %d{yyyy-MM-dd HH:mm:ss,SSS}{GMT} %p %t %c %M - %m%n

Logmanager_IP_address is the IP address your Logmanager server.

Restart the Java application to load the new configuration file.
You can now continue by configuring classifiers and parser on the Logmanager server.

Log4j version 2

You need to find the configuration file for Log4j2 in the Java application. It is typically saved as logging.properties file or log4j2.properties file.

Edit the configuration file:

appender.socket.type = Socket
appender.socket.name = socket
appender.socket.host = <Logmanager_IP_adresa>
appender.socket.port = 514
appender.socket.protocol = UDP
appender.socket.layout.type = PatternLayout
appender.socket.layout.pattern = ${hostName} java %d{yyyy-MM-dd HH:mm:ss,SSS}{GMT} %p %t %c %M - %m%n

rootLogger.level = debug
rootLogger.appenderRef.socket.ref = socket

Logmanager_IP_address is the IP address your Logmanager server.

Restart the Java application to load the new configuration file.
You can now continue by configuring classifiers and parser on the Logmanager server.