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spring cloud 整合 springboot-admin 监控中心

你。 提交于 2020-07-26 01:02:31
Admin监控应用 Spring Boot提供的监控接口,例如:/health、/info等等,实际上除了之前提到的信息,还有其他信息业需要监控:当前处于活跃状态的会话数量、当前应用的并发数、延迟以及其他度量信息。下面我们来了解如何使用spring-boot-admin来监控我们的系统。 admin-server-ui pom.xml 配置: < parent > < groupId > org.springframework.boot </ groupId > < artifactId > spring-boot-starter-parent </ artifactId > < version > 1.4.3.RELEASE </ version > < relativePath /> </ parent > < dependencyManagement > < dependencies > < dependency > < groupId > org.springframework.cloud </ groupId > < artifactId > spring-cloud-dependencies </ artifactId > < version > Camden.SR5 </ version > < type > pom </ type > < scope >

SpringBoot注入多实例,多线程处理方式

会有一股神秘感。 提交于 2020-07-24 03:52:07
还有一个帖子: Spring Boot教程十六:SpringBoot注入类实现多线程 SpringBoot注入多实例,多线程处理方式 看到这个标题,相信不少人会感到疑惑,回忆你们自己的场景会发现,在Spring的项目中很少有使用多线程处理任务的,没错,大多数时候我们都是使用Spring MVC开发的web项目,默认的Controller,Service,Dao组件的作用域都是单实例,无状态,然后被并发多线程调用,那么如果我想使用多线程处理任务,该如何做呢? 比如如下场景: 使用spring-boot开发一个监控的项目,每个被监控的业务(可能是一个数据库表或者是一个pid进程)都会单独运行在一个线程中,有自己配置的参数,总结起来就是: (1)多实例(多个业务,每个业务相互隔离互不影响) (2)有状态(每个业务,都有自己的配置参数) 如果是非spring-boot项目,实现起来可能会相对简单点,直接new多线程启动,然后传入不同的参数类即可,在spring的项目中,由于Bean对象是spring容器管理的,你直接new出来的对象是没法使用的,就算你能new成功,但是bean里面依赖的其他组件比如Dao,是没法初始化的,因为你饶过了spring,默认的spring初始化一个类时,其相关依赖的组件都会被初始化,但是自己new出来的类,是不具备这种功能的

Spring sleuth with SpringBoot (log correlation) - Traceid & SpanId Not displayed

拥有回忆 提交于 2020-07-22 14:12:20
问题 I have an existing Spring boot (2.2.0) application and trying to integrate Spring cloud sleuth to get automatic trace and span id. The logback file is as follows - <configuration> <property name="LOGS" value="./logs" /> <appender name="Console" class="ch.qos.logback.core.ConsoleAppender"> <layout class="ch.qos.logback.classic.PatternLayout"> <Pattern> %black(%d{ISO8601}) %highlight(%-5level) [%blue(%t)] %yellow(%C{1.}): %msg%n%throwable </Pattern> </layout> </appender> <appender name=

Override Logback error output

六眼飞鱼酱① 提交于 2020-07-17 10:17:48
问题 In my custom exception class I've overridden toString() : @Override public String toString() { final String msg = getLocalizedMessage(); // base String str = getClass().getName() + ": [" + code + "]"; // message if (msg != null) str += " " + msg; // extra if (extra != null) { str += '\n' + extra.toString(); } return str; } (yes, I'm aware I should use StringBuilder there) However, when I log such an exception (via org.slf4j.Logger.warn(String msg, Throwable err) ) the output is as for vanilla

Override Logback error output

家住魔仙堡 提交于 2020-07-17 10:17:07
问题 In my custom exception class I've overridden toString() : @Override public String toString() { final String msg = getLocalizedMessage(); // base String str = getClass().getName() + ": [" + code + "]"; // message if (msg != null) str += " " + msg; // extra if (extra != null) { str += '\n' + extra.toString(); } return str; } (yes, I'm aware I should use StringBuilder there) However, when I log such an exception (via org.slf4j.Logger.warn(String msg, Throwable err) ) the output is as for vanilla

In nifi how to log ip address of the server

夙愿已清 提交于 2020-07-10 08:14:23
问题 In nifi app log how to log ip address which uses logback framework for logging. <appender name="APP_FILE" class="ch.qos.logback.core.rolling.RollingFileAppender"> <file>${org.apache.nifi.bootstrap.config.log.dir}/nifi-app.log</file> <rollingPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy"> <!-- For daily rollover, use 'app_%d.log'. For hourly rollover, use 'app_%d{yyyy-MM-dd_HH}.log'. To GZIP rolled files, replace '.log' with '.log.gz'. To ZIP rolled files, replace '

In nifi how to log ip address of the server

别说谁变了你拦得住时间么 提交于 2020-07-10 08:13:37
问题 In nifi app log how to log ip address which uses logback framework for logging. <appender name="APP_FILE" class="ch.qos.logback.core.rolling.RollingFileAppender"> <file>${org.apache.nifi.bootstrap.config.log.dir}/nifi-app.log</file> <rollingPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy"> <!-- For daily rollover, use 'app_%d.log'. For hourly rollover, use 'app_%d{yyyy-MM-dd_HH}.log'. To GZIP rolled files, replace '.log' with '.log.gz'. To ZIP rolled files, replace '

How to verify (with unit test) that error stack is printed in the log file?

故事扮演 提交于 2020-06-29 03:32:55
问题 In continuing to this answer I wrote a unit test to verify that in case of error, the stack will be printed in the log file. The tested method: import org.slf4j.Logger; import org.slf4j.LoggerFactory; private final Logger logger = LoggerFactory.getLogger(getClass()); public long getFq(String fi) { try { return calcSomeThing(fi.toLowerCase()); } catch (Exception e) { logger.error("unable to calculate SomeThing. Error: " , e); return -1; } } The unit test: import ch.qos.logback.classic.Level;

How does SLF4J support structured logging

前提是你 提交于 2020-05-28 21:26:31
问题 Anyone knows how structured logging is usually implemented with SLF4J? Is there any open source already out there handling this? 回答1: Slf4j added support for structured logging (and fluent API) with v2.0.0 (Alpha as of Oct 2019): http://www.slf4j.org/api/org/slf4j/event/KeyValuePair.html http://www.slf4j.org/api/org/slf4j/event/LoggingEvent.html http://www.slf4j.org/apidocs/org/slf4j/spi/LoggingEventBuilder.html int newT = 15; int oldT = 16; // using classical API logger.debug("oldT={} newT={

How does SLF4J support structured logging

不羁的心 提交于 2020-05-28 21:22:42
问题 Anyone knows how structured logging is usually implemented with SLF4J? Is there any open source already out there handling this? 回答1: Slf4j added support for structured logging (and fluent API) with v2.0.0 (Alpha as of Oct 2019): http://www.slf4j.org/api/org/slf4j/event/KeyValuePair.html http://www.slf4j.org/api/org/slf4j/event/LoggingEvent.html http://www.slf4j.org/apidocs/org/slf4j/spi/LoggingEventBuilder.html int newT = 15; int oldT = 16; // using classical API logger.debug("oldT={} newT={