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RocketMQ修改生產者消費者日志保存路徑

rocket默認是將所有日志文件保存到user.home的對于win系統就是C盤了。

1.修改RocketMQ中CLientLogger.class的源碼，把經過更改的源碼重新打包后，去自己的maven倉庫替換rocketmq-client.-4.5.X.jar。

2.對于生產者的啟動類里需要配置JVM系統屬性：

如果不設置logUserSlf4j為true的話，啟動生產者的時候會報找不到日志配置文件的警告。

3.對于消費者，僅僅添加rq.lordir（日志保存路徑）就行了。

當然，以上情況是開發中每個開發人員需要獨立設置的，部署到線上的時候可以直接在源碼中寫路徑而不是系統屬性。

RocketMQ 日志操作

官網：http://rocketmq.apache.org/docs/logappender-example/

應用：將程序日志輸出到rocketmq，消費端可讀取日志數據進行相應處理

導入 jar 包

<dependency>
    <groupId>org.apache.rocketmq</groupId>
    <artifactId>rocketmq-logappender</artifactId>
    <version>4.7.1</version>
</dependency>

相關類

RocketmqLogbackAppender：發送到rocketmq

public class RocketmqLogbackAppender extends AppenderBase<ILoggingEvent> {
    private String tag;                   //標簽
    private String topic;                 //發送的topic
    private String nameServerAddress;     //namesrv地址
    private String producerGroup;         //發送群組
    private MQProducer producer;
    private Layout layout;                //布局方式
    private PreSerializationTransformer<ILoggingEvent> pst = new LoggingEventPreSerializationTransformer();

AsyncAppender：異步發送

public class AsyncAppender extends AsyncAppenderBase<ILoggingEvent> {
    boolean includeCallerData = false;

AsyncAppenderBase

public class AsyncAppenderBase<E> extends UnsynchronizedAppenderBase<E> 
implements AppenderAttachable<E> { 
    AppenderAttachableImpl<E> aai = new AppenderAttachableImpl<E>();
    BlockingQueue<E> blockingQueue; 
    public static final int DEFAULT_QUEUE_SIZE = 256;
    int queueSize = DEFAULT_QUEUE_SIZE; 
    int appenderCount = 0; 
    static final int UNDEFINED = -1;
    int discardingThreshold = UNDEFINED;
    boolean neverBlock = false; 
    Worker worker = new Worker(); 
    public static final int DEFAULT_MAX_FLUSH_TIME = 1000;
    int maxFlushTime = DEFAULT_MAX_FLUSH_TIME;

AppenderAttachable：引用、刪除appender

public interface AppenderAttachable<E> { 
    void addAppender(Appender<E> newAppender);
    boolean isAttached(Appender<E> appender);
 
    Iterator<Appender<E>> iteratorForAppenders();
    Appender<E> getAppender(String name);
 
    void detachAndStopAllAppenders();
    boolean detachAppender(Appender<E> appender);
    boolean detachAppender(String name);
}

日志配置

logback.xml：放在resources目錄下

<?xml version="1.0" encoding="UTF-8"?>
<configuration debug="false">
    <conversionRule conversionWord="clr" converterClass="org.springframework.boot.logging.logback.ColorConverter"/>
    <conversionRule conversionWord="wex" converterClass="org.springframework.boot.logging.logback.WhitespaceThrowableProxyConverter"/>
    <conversionRule conversionWord="wEx" converterClass="org.springframework.boot.logging.logback.ExtendedWhitespaceThrowableProxyConverter"/>
 
    <property name="log.path" value="e:/hhhh/"/>
    <property name="console.pattern" value="%clr(%d{${LOG_DATEFORMAT_PATTERN:-yyyy-MM-dd HH:mm:ss.SSS}}){faint} %clr(${LOG_LEVEL_PATTERN:-%5p}) %clr(${PID:- }){magenta} %clr(---){faint} %clr([%15.15t]){faint} %clr(%-40.40logger{39}){cyan} %clr(:){faint} %m%n${LOG_EXCEPTION_CONVERSION_WORD:-%wEx}"/>
    <property name="file.pattern" value="%d{${LOG_DATEFORMAT_PATTERN:-yyyy-MM-dd HH:mm:ss.SSS}} ${LOG_LEVEL_PATTERN:-%5p} ${PID:- } --- [%t] %-40.40logger{39} : %m%n${LOG_EXCEPTION_CONVERSION_WORD:-%wEx}"/>
 
    <appender name="console" class="ch.qos.logback.core.ConsoleAppender">
        <encoder>
            <pattern>${console.pattern}</pattern>
        </encoder>
    </appender>
 
    <appender name="mqAppender1" class="org.apache.rocketmq.logappender.logback.RocketmqLogbackAppender">
        <tag>tag</tag>
        <topic>topic-log</topic>
        <producerGroup>log-group</producerGroup>
        <nameServerAddress>172.18.0.10:9876</nameServerAddress>
        <layout>
            <pattern>%date %p %t - %m%n</pattern>
        </layout>
    </appender>
 
    <!-- 異步發送 -->
    <appender name="mqAsyncAppender1" class="ch.qos.logback.classic.AsyncAppender">
        <queueSize>1024</queueSize>
        <discardingThreshold>80</discardingThreshold>
        <maxFlushTime>2000</maxFlushTime>
        <neverBlock>true</neverBlock>
        <appender-ref ref="mqAppender1"/>
    </appender>
 
    <root level="info">
        <appender-ref ref="console"/>
        <appender-ref ref="mqAsyncAppender1"/>
    </root>
</configuration>

將springboot應用打包，發布成docker容器

創建容器

#namesrv
docker run -it -d --net fixed --ip 172.18.0.10 -p 9876:9876 
-e JAVA_OPT="-server -Xms256m -Xmx256m -Xmn128m" 
--name namesrv lihu12344/rocketmq:4.7.1 bash bin/mqnamesrv
 
#broker
docker run -it -d --net fixed --ip 172.18.0.20 
-e NAMESRV_ADDR="172.18.0.10:9876" 
-e JAVA_OPT="-server -Xms512m -Xmx512m -Xmn256m" 
-v /usr/rocketmq/single/broker.conf:/home/rocketmq/rcketmq-4.7.1/conf/broker.conf 
--name broker lihu12344/rocketmq:4.7.1 
bash bin/mqbroker autoCreateTopicEnable=true -c conf/broker.conf
 
#應用程序
docker run -it -d --net fixed --ip 172.18.0.21 -p 8080:8080 --name rocketmq-log rocketmq-log

rocketmq監控

docker run -it -d --net fixed --ip 172.18.0.4 -p 8008:8080 
-e "JAVA_OPTS=-Drocketmq.namesrv.addr=172.18.0.10:9876 -Dcom.rocketmq.sendMessageWithVIPChannel=false" 
--name rocketmq-console styletang/rocketmq-console-ng