snp-batch-validation/src/main/resources/logback-spring.xml

<?xml version="1.0" encoding="UTF-8"?>
<configuration scan="true" scanPeriod="30 seconds">

    <!-- ========================================
         프로퍼티 정의
         ======================================== -->
    <property name="LOG_PATH" value="logs"/>
    <property name="LOG_PATTERN" value="%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{40} - %msg%n"/>
    <property name="LOG_PATTERN_SIMPLE" value="%d{HH:mm:ss.SSS} %-5level %logger{20} - %msg%n"/>

    <!-- 파일 크기 및 보관 설정 -->
    <property name="MAX_FILE_SIZE" value="100MB"/>
    <property name="MAX_HISTORY" value="30"/>
    <property name="TOTAL_SIZE_CAP" value="10GB"/>

    <!-- ========================================
         콘솔 Appender (개발용)
         ======================================== -->
    <appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
        <encoder>
            <pattern>${LOG_PATTERN_SIMPLE}</pattern>
            <charset>UTF-8</charset>
        </encoder>
    </appender>

    <!-- ========================================
         메인 로그 (application.log)
         - 일반 애플리케이션 로그
         - INFO 레벨 이상
         ======================================== -->
    <appender name="APP_FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <file>${LOG_PATH}/application.log</file>
        <encoder>
            <pattern>${LOG_PATTERN}</pattern>
            <charset>UTF-8</charset>
        </encoder>
        <rollingPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy">
            <fileNamePattern>${LOG_PATH}/archive/application.%d{yyyy-MM-dd}.%i.log.gz</fileNamePattern>
            <maxFileSize>${MAX_FILE_SIZE}</maxFileSize>
            <maxHistory>${MAX_HISTORY}</maxHistory>
            <totalSizeCap>${TOTAL_SIZE_CAP}</totalSizeCap>
        </rollingPolicy>
    </appender>

    <!-- ========================================
         배치 로그 (batch.log)
         - Spring Batch Job/Step 실행 이력
         - Job 시작/종료, 처리 건수 등
         ======================================== -->
    <appender name="BATCH_FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <file>${LOG_PATH}/batch.log</file>
        <encoder>
            <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level [%X{jobName}] %logger{30} - %msg%n</pattern>
            <charset>UTF-8</charset>
        </encoder>
        <rollingPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy">
            <fileNamePattern>${LOG_PATH}/archive/batch.%d{yyyy-MM-dd}.%i.log.gz</fileNamePattern>
            <maxFileSize>${MAX_FILE_SIZE}</maxFileSize>
            <maxHistory>${MAX_HISTORY}</maxHistory>
            <totalSizeCap>${TOTAL_SIZE_CAP}</totalSizeCap>
        </rollingPolicy>
    </appender>

    <!-- ========================================
         API 요청 로그 (api-access.log)
         - REST API 요청/응답 이력
         - 요청 IP, 파라미터, 응답시간 등
         ======================================== -->
    <appender name="API_ACCESS_FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <file>${LOG_PATH}/api-access.log</file>
        <encoder>
            <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %msg%n</pattern>
            <charset>UTF-8</charset>
        </encoder>
        <rollingPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy">
            <fileNamePattern>${LOG_PATH}/archive/api-access.%d{yyyy-MM-dd}.%i.log.gz</fileNamePattern>
            <maxFileSize>${MAX_FILE_SIZE}</maxFileSize>
            <maxHistory>${MAX_HISTORY}</maxHistory>
            <totalSizeCap>${TOTAL_SIZE_CAP}</totalSizeCap>
        </rollingPolicy>
    </appender>

    <!-- ========================================
         메트릭 로그 (metrics.log)
         - 성능 지표, 통계 정보
         - 주기적 상태 체크 로그
         ======================================== -->
    <appender name="METRICS_FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <file>${LOG_PATH}/metrics.log</file>
        <encoder>
            <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} %msg%n</pattern>
            <charset>UTF-8</charset>
        </encoder>
        <rollingPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy">
            <fileNamePattern>${LOG_PATH}/archive/metrics.%d{yyyy-MM-dd}.%i.log.gz</fileNamePattern>
            <maxFileSize>50MB</maxFileSize>
            <maxHistory>7</maxHistory>
            <totalSizeCap>1GB</totalSizeCap>
        </rollingPolicy>
    </appender>

    <!-- ========================================
         에러 로그 (error.log)
         - ERROR, WARN 레벨만 기록
         - 문제 추적용
         ======================================== -->
    <appender name="ERROR_FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <file>${LOG_PATH}/error.log</file>
        <filter class="ch.qos.logback.classic.filter.ThresholdFilter">
            <level>WARN</level>
        </filter>
        <encoder>
            <pattern>${LOG_PATTERN}</pattern>
            <charset>UTF-8</charset>
        </encoder>
        <rollingPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy">
            <fileNamePattern>${LOG_PATH}/archive/error.%d{yyyy-MM-dd}.%i.log.gz</fileNamePattern>
            <maxFileSize>${MAX_FILE_SIZE}</maxFileSize>
            <maxHistory>60</maxHistory>
            <totalSizeCap>5GB</totalSizeCap>
        </rollingPolicy>
    </appender>

    <!-- ========================================
         비동기 Appender (성능 최적화)
         ======================================== -->
    <appender name="ASYNC_APP" class="ch.qos.logback.classic.AsyncAppender">
        <queueSize>512</queueSize>
        <discardingThreshold>0</discardingThreshold>
        <appender-ref ref="APP_FILE"/>
    </appender>

    <appender name="ASYNC_BATCH" class="ch.qos.logback.classic.AsyncAppender">
        <queueSize>256</queueSize>
        <discardingThreshold>0</discardingThreshold>
        <appender-ref ref="BATCH_FILE"/>
    </appender>

    <!-- ========================================
         Logger 설정 - 패키지별 레벨
         ======================================== -->

    <!-- 애플리케이션 로거 -->
    <logger name="com.snp.batch" level="INFO" additivity="false">
        <appender-ref ref="ASYNC_APP"/>
        <appender-ref ref="ERROR_FILE"/>
        <appender-ref ref="CONSOLE"/>
    </logger>

    <!-- 배치 Job/Config 로거 -->
    <logger name="com.snp.batch.jobs" level="INFO" additivity="false">
        <appender-ref ref="ASYNC_BATCH"/>
        <appender-ref ref="ERROR_FILE"/>
        <appender-ref ref="CONSOLE"/>
    </logger>

    <!-- 배치 Reader/Processor/Writer - 개별 row 로그 최소화 -->
    <logger name="com.snp.batch.common.batch.reader" level="INFO" additivity="false">
        <appender-ref ref="ASYNC_BATCH"/>
        <appender-ref ref="CONSOLE"/>
    </logger>
    <logger name="com.snp.batch.jobs.aistarget.batch.reader" level="INFO" additivity="false">
        <appender-ref ref="ASYNC_BATCH"/>
        <appender-ref ref="CONSOLE"/>
    </logger>
    <logger name="com.snp.batch.jobs.aistarget.batch.processor" level="WARN" additivity="false">
        <appender-ref ref="ASYNC_BATCH"/>
        <appender-ref ref="CONSOLE"/>
    </logger>
    <logger name="com.snp.batch.jobs.aistarget.batch.writer" level="INFO" additivity="false">
        <appender-ref ref="ASYNC_BATCH"/>
        <appender-ref ref="CONSOLE"/>
    </logger>

    <!-- API 요청 로거 -->
    <logger name="com.snp.batch.api.logging" level="INFO" additivity="false">
        <appender-ref ref="API_ACCESS_FILE"/>
    </logger>

    <!-- 메트릭 로거 -->
    <logger name="com.snp.batch.metrics" level="INFO" additivity="false">
        <appender-ref ref="METRICS_FILE"/>
    </logger>

    <!-- 파티션 관리 로거 -->
    <logger name="com.snp.batch.global.partition" level="INFO" additivity="false">
        <appender-ref ref="ASYNC_BATCH"/>
        <appender-ref ref="CONSOLE"/>
    </logger>

    <!-- Spring Batch 프레임워크 - 핵심 로그만 -->
    <logger name="org.springframework.batch" level="WARN" additivity="false">
        <appender-ref ref="ASYNC_BATCH"/>
        <appender-ref ref="CONSOLE"/>
    </logger>
    <logger name="org.springframework.batch.core.job" level="INFO" additivity="false">
        <appender-ref ref="ASYNC_BATCH"/>
        <appender-ref ref="CONSOLE"/>
    </logger>
    <logger name="org.springframework.batch.core.step" level="INFO" additivity="false">
        <appender-ref ref="ASYNC_BATCH"/>
        <appender-ref ref="CONSOLE"/>
    </logger>

    <!-- Spring 프레임워크 -->
    <logger name="org.springframework" level="WARN"/>
    <logger name="org.springframework.web" level="WARN"/>

    <!-- Hibernate/JPA - SQL 로그 최소화 -->
    <logger name="org.hibernate" level="WARN"/>
    <logger name="org.hibernate.SQL" level="WARN"/>
    <logger name="org.hibernate.type.descriptor.sql" level="WARN"/>

    <!-- JDBC -->
    <logger name="org.springframework.jdbc" level="WARN"/>
    <logger name="com.zaxxer.hikari" level="WARN"/>

    <!-- Quartz 스케줄러 -->
    <logger name="org.quartz" level="WARN"/>

    <!-- WebClient/Reactor -->
    <logger name="reactor.netty" level="WARN"/>
    <logger name="io.netty" level="WARN"/>

    <!-- ========================================
         Root Logger
         ======================================== -->
    <root level="INFO">
        <appender-ref ref="ASYNC_APP"/>
        <appender-ref ref="ERROR_FILE"/>
        <appender-ref ref="CONSOLE"/>
    </root>

</configuration>