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log4j configs

Follow the steps below to set up the correlation logs related to the database calls.

1. Open the log4j.properties file in the <IS_HOME>/repository/conf directory.

2. Add the following code to it.

   Code Block

   # Appender config to put correlation Log. log4j.logger.correlation=INFO, CORRELATION log4j.additivity.correlation=false log4j.appender.CORRELATION=org.apache.log4j.RollingFileAppender log4j.appender.CORRELATION.File=${carbon.home}/repository/logs/${instance.log}/correlation.log log4j.appender.CORRELATION.MaxFileSize=10MB50MB log4j.appender.CORRELATION.MaxBackupIndex=100 log4j.appender.CORRELATION.layout=org.apache.log4j.PatternLayout log4j.appender.CORRELATION.Threshold=INFO log4j.appender.CORRELATION.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss,SSS}|%X{Correlation-ID}|%t|%m%n

Tomcat valve configs

Follow the steps below to set up the correlation ID mapping between the request database call and the response database call.

1. Open the catalina-server.xml file in the <IS_HOME>/repository/conf/tomcat directory.

2. Add the following value under the <Host> tag.

   Code Block
   <Valve className="org.wso2.carbon.tomcat.ext.valves.RequestCorrelationIdValve" headerToCorrelationIdMapping="{'activityid':'Correlation-ID'}" queryToCorrelationIdMapping="{'RelayState':'Correlation-ID'}"/>

   Note
   This should be the first valve under the <Host> tag.