Monitor Access

To monitor access of REST-API of the MetaStore you have the possibility to write all accesses to /api/v1 to an Logging appender.

Example using RollingFileAppender

To enable Metastore to find the configuration file (logback-spring.xml) you should place it next to your jar-file. Then you may start Metastore with the following command:

>java -Dloader.path=. -jar metastore2-x.x.x.jar

Configuration File (logback-spring.xml)

<?xml version="1.0" encoding="UTF-8"?>
<configuration>

    <property name="LOGS" value="./logs/access" />

    <appender name="Console"
        class="ch.qos.logback.core.ConsoleAppender">
        <layout class="ch.qos.logback.classic.PatternLayout">
          <pattern>%gray(%d{YYYY-MM-dd HH:mm:ss.SSS}) %green(%highlight(%5p)) - %gray([%10thread]) %cyan(%42logger{42}) : %msg%n</pattern> 
        </layout>
    </appender>

    <appender name="RollingFile"
        class="ch.qos.logback.core.rolling.RollingFileAppender">
        <file>${LOGS}/logFile.log</file>
        <encoder
            class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
            <Pattern>%d{YYYY-MM-dd}, %m%n</Pattern>
        </encoder>

        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <!-- daily rollover -->
            <fileNamePattern>logFile.%d{yyyy-MM-dd}.log</fileNamePattern>

            <!-- keep 7 days' worth of history -->
            <maxHistory>7</maxHistory>
        </rollingPolicy>
    </appender>
    
    <!-- LOG everything at INFO level  -->
    <root level="info">
        <appender-ref ref="Console" />
    </root> 

    <!-- LOG "com.baeldung*" at TRACE level -->
    <logger name="edu.kit.datamanager.metastore2.filter" level="trace" additivity="false">
        <appender-ref ref="RollingFile" />
    </logger>

</configuration>

Creating your own appender

This may allow you to analyze logs and write directly to another (monitoring) service. https://www.baeldung.com/custom-logback-appender