问题描述
在我的应用程序重新部署操作后，cpu 上升到 100%。所以我必须重启Tomcat来释放cpu。
消耗所有cpu的线程为：
"reactor-http-epoll-1" #1569412 daemon prio=5 os_prio=0 tid=0x00007f53c010b000 nid=0x6155 runnable [0x00007f539237d000]
java.lang.Thread.State: RUNNABLE
at java.lang.Throwable.getStackTraceElement(Native Method)
at java.lang.Throwable.getourStackTrace(Throwable.java:827)
- locked (a java.lang.NoClassDefFoundError)
at java.lang.Throwable.getStackTrace(Throwable.java:816)
at ch.qos.logback.classic.spi.ThrowableProxy.(ThrowableProxy.java:55)
at ch.qos.logback.classic.spi.LoggingEvent.(LoggingEvent.java:119)
at ch.qos.logback.classic.Logger.buildLoggingEventAndAppend(Logger.java:419)
at ch.qos.logback.classic.Logger.filterandLog_0_Or3Plus(Logger.java:383)
at ch.qos.logback.classic.Logger.log(Logger.java:765)
at io.netty.util.internal.logging.LocationAwareSlf4JLogger.log(LocationAwareSlf4JLogger.java:50)
at io.netty.util.internal.logging.LocationAwareSlf4JLogger.warn(LocationAwareSlf4JLogger.java:202)
at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:166)
at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:472)
at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:387)
at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989)
at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
at java.lang.Thread.run(Thread.java:748)
该问题仅发生在重新部署操作中。我用新版本替换了 - 从 shell - 战争。
- 操作系统：RedHat 7.6 x86_64 (3.10.0-957.5.1.el7.x86_64)
- 处理器：1 x Intel(R) Xeon(R) cpu E5-2687W v4 @ 3.00GHz
- OpenJDK 运行时环境（版本 1.8.0_191-b12）
- OpenJDK 64 位服务器 VM（构建 25.191-b12，混合模式）
- 服务器版本：Apache Tomcat/9.0.7.redhat-12
- 服务器建成时间：2018 年 9 月 7 日 13:37:03 UTC
- 服务器编号：9.0.7.0
- 操作系统名称：Linux
- 操作系统版本：3.10.0-957.5.1.el7.x86_64
- 架构：amd64
- JVM 版本：1.8.0_191-b12
- JVM 供应商：甲骨文公司
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Hoxton.SR9</version>
<type>pom</type>
<scope>import</scope>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-loadbalancer</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-commons</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-webflux</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>
<dependency>
<groupId>org.thymeleaf.extras</groupId>
<artifactId>thymeleaf-extras-springsecurity5</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-openfeign</artifactId>
<exclusions>
<exclusion>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-netflix-ribbon</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<scope>provided</scope>
</dependency>
使用 webflux (webclient) 的负载均衡器配置。
@Configuration
@EnableAutoConfiguration
@LoadBalancerClients({ @LoadBalancerClient(value = "${loadbalancer.client.name}") })
public class LoadBalancerConfig implements WebMvcConfigurer {
@LoadBalanced
@Bean
RestTemplate restClient() {
return new RestTemplate();
}
@Bean
public ServiceInstanceListsupplier discoveryClientServiceInstanceListsupplier(discoveryClient discoveryClient,Environment env,ApplicationContext context,LoadBalancerProperties loadBalancerProperties) {
discoveryClientServiceInstanceListsupplier firstDelegate = new discoveryClientServiceInstanceListsupplier(discoveryClient,env);
HealthCheckServiceInstanceListsupplier delegate = new HealthCheckServiceInstanceListsupplier(firstDelegate,loadBalancerProperties.getHealthCheck(),WebClient.create());
/*
* ObjectProvider<LoadBalancerCacheManager> cacheManagerProvider = context
* .getBeanProvider(LoadBalancerCacheManager.class);
*
* if (cacheManagerProvider.getIfAvailable() != null) { return new
* CachingServiceInstanceListsupplier(delegate,* cacheManagerProvider.getIfAvailable()); }
*/
return delegate;
}
}
依赖：树
[INFO]
[INFO] -----------------------------------------------
[INFO] Building webapp 1.0.1
[INFO] --------------------------------[ war ]---------------------------------
[INFO]
[INFO] --- maven-dependency-plugin:3.1.2:tree (default-cli) @ webapp ---
[INFO] it.xxx:webapp:war:1.0.1
[INFO] +- org.springframework.boot:spring-boot-starter-actuator:jar:2.3.0.RELEASE:compile
[INFO] | +- org.springframework.boot:spring-boot-starter:jar:2.3.0.RELEASE:compile
[INFO] | | +- org.springframework.boot:spring-boot:jar:2.3.0.RELEASE:compile
[INFO] | | +- org.springframework.boot:spring-boot-autoconfigure:jar:2.3.0.RELEASE:compile
[INFO] | | +- org.springframework.boot:spring-boot-starter-logging:jar:2.3.0.RELEASE:compile
[INFO] | | | +- ch.qos.logback:logback-classic:jar:1.2.3:compile
[INFO] | | | | \- ch.qos.logback:logback-core:jar:1.2.3:compile
[INFO] | | | +- org.apache.logging.log4j:log4j-to-slf4j:jar:2.13.2:compile
[INFO] | | | | \- org.apache.logging.log4j:log4j-api:jar:2.13.2:compile
[INFO] | | | \- org.slf4j:jul-to-slf4j:jar:1.7.30:compile
[INFO] | | \- org.yaml:snakeyaml:jar:1.26:compile
[INFO] | +- org.springframework.boot:spring-boot-actuator-autoconfigure:jar:2.3.0.RELEASE:compile
[INFO] | | +- org.springframework.boot:spring-boot-actuator:jar:2.3.0.RELEASE:compile
[INFO] | | +- com.fasterxml.jackson.core:jackson-databind:jar:2.11.0:compile
[INFO] | | | +- com.fasterxml.jackson.core:jackson-annotations:jar:2.11.0:compile
[INFO] | | | \- com.fasterxml.jackson.core:jackson-core:jar:2.11.0:compile
[INFO] | | \- com.fasterxml.jackson.datatype:jackson-datatype-jsr310:jar:2.11.0:compile
[INFO] | \- io.micrometer:micrometer-core:jar:1.5.1:compile
[INFO] | +- org.hdrhistogram:HdrHistogram:jar:2.1.12:compile
[INFO] | \- org.latencyutils:LatencyUtils:jar:2.0.3:runtime
[INFO] +- org.springframework.boot:spring-boot-starter-web:jar:2.3.0.RELEASE:compile
[INFO] | +- org.springframework.boot:spring-boot-starter-json:jar:2.3.0.RELEASE:compile
[INFO] | | +- com.fasterxml.jackson.datatype:jackson-datatype-jdk8:jar:2.11.0:compile
[INFO] | | \- com.fasterxml.jackson.module:jackson-module-parameter-names:jar:2.11.0:compile
[INFO] | +- org.springframework:spring-web:jar:5.2.6.RELEASE:compile
[INFO] | | \- org.springframework:spring-beans:jar:5.2.6.RELEASE:compile
[INFO] | \- org.springframework:spring-webmvc:jar:5.2.6.RELEASE:compile
[INFO] | \- org.springframework:spring-expression:jar:5.2.6.RELEASE:compile
[INFO] +- org.springframework.boot:spring-boot-starter-security:jar:2.3.0.RELEASE:compile
[INFO] | +- org.springframework:spring-aop:jar:5.2.6.RELEASE:compile
[INFO] | +- org.springframework.security:spring-security-config:jar:5.3.2.RELEASE:compile
[INFO] | | \- org.springframework.security:spring-security-core:jar:5.3.2.RELEASE:compile
[INFO] | \- org.springframework.security:spring-security-web:jar:5.3.2.RELEASE:compile
[INFO] +- org.thymeleaf.extras:thymeleaf-extras-springsecurity5:jar:3.0.4.RELEASE:compile
[INFO] | \- org.slf4j:slf4j-api:jar:1.7.30:compile
[INFO] +- org.springframework.boot:spring-boot-starter-thymeleaf:jar:2.3.0.RELEASE:compile
[INFO] | +- org.thymeleaf:thymeleaf-Spring5:jar:3.0.11.RELEASE:compile
[INFO] | | \- org.thymeleaf:thymeleaf:jar:3.0.11.RELEASE:compile
[INFO] | | +- org.attoparser:attoparser:jar:2.0.5.RELEASE:compile
[INFO] | | \- org.unbescape:unbescape:jar:1.1.6.RELEASE:compile
[INFO] | \- org.thymeleaf.extras:thymeleaf-extras-java8time:jar:3.0.4.RELEASE:compile
[INFO] +- org.springframework.boot:spring-boot-starter-test:jar:2.3.0.RELEASE:test
[INFO] | +- org.springframework.boot:spring-boot-test:jar:2.3.0.RELEASE:test
[INFO] | +- org.springframework.boot:spring-boot-test-autoconfigure:jar:2.3.0.RELEASE:test
[INFO] | +- com.jayway.jsonpath:json-path:jar:2.4.0:test
[INFO] | | \- net.minidev:json-smart:jar:2.3:test
[INFO] | | \- net.minidev:accessors-smart:jar:1.2:test
[INFO] | | \- org.ow2.asm:asm:jar:5.0.4:test
[INFO] | +- jakarta.xml.bind:jakarta.xml.bind-api:jar:2.3.3:test
[INFO] | | \- jakarta.activation:jakarta.activation-api:jar:1.2.2:test
[INFO] | +- org.assertj:assertj-core:jar:3.16.1:test
[INFO] | +- org.hamcrest:hamcrest:jar:2.2:test
[INFO] | +- org.junit.jupiter:junit-jupiter:jar:5.6.2:test
[INFO] | | +- org.junit.jupiter:junit-jupiter-api:jar:5.6.2:test
[INFO] | | | +- org.opentest4j:opentest4j:jar:1.2.0:test
[INFO] | | | \- org.junit.platform:junit-platform-commons:jar:1.6.2:test
[INFO] | | +- org.junit.jupiter:junit-jupiter-params:jar:5.6.2:test
[INFO] | | \- org.junit.jupiter:junit-jupiter-engine:jar:5.6.2:test
[INFO] | +- org.junit.vintage:junit-vintage-engine:jar:5.6.2:test
[INFO] | | +- org.apiguardian:apiguardian-api:jar:1.1.0:test
[INFO] | | +- org.junit.platform:junit-platform-engine:jar:1.6.2:test
[INFO] | | \- junit:junit:jar:4.13:test
[INFO] | +- org.mockito:mockito-core:jar:3.3.3:test
[INFO] | | +- net.bytebuddy:byte-buddy:jar:1.10.10:test
[INFO] | | +- net.bytebuddy:byte-buddy-agent:jar:1.10.10:test
[INFO] | | \- org.objenesis:objenesis:jar:2.6:test
[INFO] | +- org.mockito:mockito-junit-jupiter:jar:3.3.3:test
[INFO] | +- org.skyscreamer:jsonassert:jar:1.5.0:test
[INFO] | | \- com.vaadin.external.google:android-json:jar:0.0.20131108.vaadin1:test
[INFO] | +- org.springframework:spring-core:jar:5.2.6.RELEASE:compile
[INFO] | | \- org.springframework:spring-jcl:jar:5.2.6.RELEASE:compile
[INFO] | +- org.springframework:spring-test:jar:5.2.6.RELEASE:test
[INFO] | \- org.xmlunit:xmlunit-core:jar:2.7.0:test
[INFO] +- org.webjars:bootstrap:jar:4.2.1:compile
[INFO] | +- org.webjars:jquery:jar:3.0.0:compile
[INFO] | \- org.webjars:popper.js:jar:1.14.3:compile
[INFO] +- org.springframework.cloud:spring-cloud-starter-openfeign:jar:2.2.6.RELEASE:compile
[INFO] | +- org.springframework.cloud:spring-cloud-starter:jar:2.2.6.RELEASE:compile
[INFO] | | +- org.springframework.cloud:spring-cloud-context:jar:2.2.6.RELEASE:compile
[INFO] | | \- org.springframework.security:spring-security-rsa:jar:1.0.9.RELEASE:compile
[INFO] | | \- org.bouncycastle:bcpkix-jdk15on:jar:1.64:compile
[INFO] | | \- org.bouncycastle:bcprov-jdk15on:jar:1.64:compile
[INFO] | +- org.springframework.cloud:spring-cloud-openfeign-core:jar:2.2.6.RELEASE:compile
[INFO] | | +- org.springframework.boot:spring-boot-starter-aop:jar:2.3.0.RELEASE:compile
[INFO] | | | \- org.aspectj:aspectjweaver:jar:1.9.5:compile
[INFO] | | \- io.github.openfeign.form:feign-form-spring:jar:3.8.0:compile
[INFO] | | +- io.github.openfeign.form:feign-form:jar:3.8.0:compile
[INFO] | | \- commons-fileupload:commons-fileupload:jar:1.4:compile
[INFO] | +- io.github.openfeign:feign-core:jar:10.10.1:compile
[INFO] | +- io.github.openfeign:feign-slf4j:jar:10.10.1:compile
[INFO] | \- io.github.openfeign:feign-hystrix:jar:10.10.1:compile
[INFO] | +- com.netflix.archaius:archaius-core:jar:0.7.6:compile
[INFO] | | +- com.google.code.findbugs:jsr305:jar:3.0.1:runtime
[INFO] | | +- commons-configuration:commons-configuration:jar:1.8:runtime
[INFO] | | | \- commons-lang:commons-lang:jar:2.6:runtime
[INFO] | | \- com.google.guava:guava:jar:29.0-jre:runtime
[INFO] | | +- com.google.guava:failureaccess:jar:1.0.1:runtime
[INFO] | | +- com.google.guava:listenablefuture:jar:9999.0-empty-to-avoid-conflict-with-guava:runtime
[INFO] | | +- org.checkerframework:checker-qual:jar:2.11.1:runtime
[INFO] | | +- com.google.errorprone:error_prone_annotations:jar:2.3.4:runtime
[INFO] | | \- com.google.j2objc:j2objc-annotations:jar:1.3:runtime
[INFO] | \- com.netflix.hystrix:hystrix-core:jar:1.5.18:compile
[INFO] | \- io.reactivex:rxjava:jar:1.3.8:compile
[INFO] +- org.springframework.cloud:spring-cloud-starter-loadbalancer:jar:2.2.6.RELEASE:compile
[INFO] | +- org.springframework.cloud:spring-cloud-loadbalancer:jar:2.2.6.RELEASE:compile
[INFO] | | +- org.springframework.boot:spring-boot-starter-validation:jar:2.3.0.RELEASE:compile
[INFO] | | | \- org.hibernate.validator:hibernate-validator:jar:6.1.5.Final:compile
[INFO] | | | +- jakarta.validation:jakarta.validation-api:jar:2.0.2:compile
[INFO] | | | +- org.jboss.logging:jboss-logging:jar:3.4.1.Final:compile
[INFO] | | | \- com.fasterxml:classmate:jar:1.5.1:compile
[INFO] | | +- io.projectreactor:reactor-core:jar:3.3.5.RELEASE:compile
[INFO] | | | \- org.reactivestreams:reactive-streams:jar:1.0.3:compile
[INFO] | | \- io.projectreactor.addons:reactor-extra:jar:3.3.3.RELEASE:compile
[INFO] | +- org.springframework.boot:spring-boot-starter-cache:jar:2.3.0.RELEASE:compile
[INFO] | | \- org.springframework:spring-context-support:jar:5.2.6.RELEASE:compile
[INFO] | \- com.stoyanr:evictor:jar:1.0.0:compile
[INFO] +- org.springframework.cloud:spring-cloud-commons:jar:2.2.6.RELEASE:compile
[INFO] | \- org.springframework.security:spring-security-crypto:jar:5.3.2.RELEASE:compile
[INFO] +- org.springframework.boot:spring-boot-starter-webflux:jar:2.3.0.RELEASE:compile
[INFO] | +- org.springframework.boot:spring-boot-starter-reactor-netty:jar:2.3.0.RELEASE:compile
[INFO] | | \- io.projectreactor.netty:reactor-netty:jar:0.9.7.RELEASE:compile
[INFO] | | +- io.netty:netty-codec-http:jar:4.1.49.Final:compile
[INFO] | | | +- io.netty:netty-common:jar:4.1.49.Final:compile
[INFO] | | | +- io.netty:netty-buffer:jar:4.1.49.Final:compile
[INFO] | | | +- io.netty:netty-transport:jar:4.1.49.Final:compile
[INFO] | | | \- io.netty:netty-codec:jar:4.1.49.Final:compile
[INFO] | | +- io.netty:netty-codec-http2:jar:4.1.49.Final:compile
[INFO] | | +- io.netty:netty-handler:jar:4.1.49.Final:compile
[INFO] | | | \- io.netty:netty-resolver:jar:4.1.49.Final:compile
[INFO] | | +- io.netty:netty-handler-proxy:jar:4.1.49.Final:compile
[INFO] | | | \- io.netty:netty-codec-socks:jar:4.1.49.Final:compile
[INFO] | | \- io.netty:netty-transport-native-epoll:jar:linux-x86_64:4.1.49.Final:compile
[INFO] | | \- io.netty:netty-transport-native-unix-common:jar:4.1.49.Final:compile
[INFO] | +- org.springframework:spring-webflux:jar:5.2.6.RELEASE:compile
[INFO] | \- org.synchronoss.cloud:nio-multipart-parser:jar:1.1.0:compile
[INFO] | \- org.synchronoss.cloud:nio-stream-storage:jar:1.1.3:compile
[INFO] +- it.xxx:type:jar:1.0-SNAPSHOT:compile
[INFO] | \- org.projectlombok:lombok:jar:1.18.12:compile
[INFO] +- it.xxx:utility:jar:1.0-SNAPSHOT:compile
[INFO] | +- org.springframework:spring-context:jar:5.2.6.RELEASE:compile
[INFO] | +- javax.mail:mail:jar:1.4.7:compile
[INFO] | | \- javax.activation:activation:jar:1.1:compile
[INFO] | +- org.apache.commons:commons-lang3:jar:3.10:compile
[INFO] | +- org.modelmapper:modelmapper:jar:2.1.0:compile
[INFO] | +- commons-io:commons-io:jar:2.6:compile
[INFO] | \- io.jsonwebtoken:jjwt:jar:0.9.1:compile
[INFO] +- org.json:json:jar:20190722:compile
[INFO] +- commons-validator:commons-validator:jar:1.6:compile
[INFO] | +- commons-beanutils:commons-beanutils:jar:1.9.2:compile
[INFO] | +- commons-digester:commons-digester:jar:1.8.1:compile
[INFO] | +- commons-logging:commons-logging:jar:1.2:compile
[INFO] | \- commons-collections:commons-collections:jar:3.2.2:compile
[INFO] +- com.google.code.gson:gson:jar:2.8.5:compile
[INFO] \- org.springframework.boot:spring-boot-starter-tomcat:jar:2.3.0.RELEASE:provided
[INFO] +- jakarta.annotation:jakarta.annotation-api:jar:1.3.5:compile
[INFO] +- org.apache.tomcat.embed:tomcat-embed-core:jar:9.0.35:provided
[INFO] +- org.glassfish:jakarta.el:jar:3.0.3:compile
[INFO] \- org.apache.tomcat.embed:tomcat-embed-websocket:jar:9.0.35:provided
谢谢！
解决方法
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