java是Tomcat上的一个应用程序，它会自动关闭
我们正在SpringBoot（2.1.3）框架上构建服务，并将多个应用程序部署在一个Tomcat实例（下面给出了版本）上。我们一直在观察Tomcat上的一些应用程序被随机关闭，没有任何例外，也没有人工干预。是否有人面临同样的问题或知道可能的原因
我不确定它是否相关，但我注意到的一件事是，应用程序在没有请求的情况下闲置了几个小时
Tomcat版本：
Server version: Apache Tomcat/9.0.14
Server built: Dec 6 2018 21:13:53 UTC
Server number: 9.0.14.0
OS Name: Linux
OS Version: 3.10.0-1062.9.1.el7.x86_64
Architecture: amd64
JVM Version: 1.8.0_202-b08
JVM Vendor: Oracle Corporation
更新：从应用程序日志和Catalina日志附加日志：
Application log:
2020-05-11 18:06:17.467 INFO 15870 --- [Catalina-utility-1] o.s.i.endpoint.EventDrivenConsumer : Removing {logging-channel-adapter:_org.springframework.integration.errorLogger} as a subscriber to the 'errorChannel' channel
2020-05-11 18:06:17.468 INFO 15870 --- [Catalina-utility-1] o.s.i.channel.PublishSubscribeChannel : Channel 'app.errorChannel' has 0 subscriber(s).
2020-05-11 18:06:17.468 INFO 15870 --- [Catalina-utility-1] o.s.i.endpoint.EventDrivenConsumer : stopped _org.springframework.integration.errorLogger
2020-05-11 18:06:17.469 INFO 15870 --- [Catalina-utility-1] o.s.s.c.ThreadPoolTaskScheduler : Shutting down ExecutorService 'taskScheduler'
2020-05-11 18:06:17.480 INFO 15870 --- [Catalina-utility-1] o.s.s.concurrent.ThreadPoolTaskExecutor : Shutting down ExecutorService 'topicExecutor'
2020-05-11 18:06:17.480 INFO 15870 --- [Catalina-utility-1] o.s.s.concurrent.ThreadPoolTaskExecutor : Shutting down ExecutorService 'topicExecutor'
2020-05-11 18:06:17.485 INFO 15870 --- [Catalina-utility-1] o.a.e.i.a.DefaultAsyncJobExecutor : Shutting down the default async job executor [org.activiti.spring.SpringAsyncExecutor].
2020-05-11 18:06:17.485 INFO 15870 --- [activiti-acquire-timer-jobs] o.a.e.i.a.AcquireTimerJobsRunnable : {} stopped async job due acquisition
2020-05-11 18:06:17.485 INFO 15870 --- [activiti-reset-expired-jobs] o.a.e.i.a.ResetExpiredJobsRunnable : {} stopped resetting expired jobs
2020-05-11 18:06:17.485 INFO 15870 --- [activiti-acquire-async-jobs] o.a.e.i.a.AcquireAsyncJobsDueRunnable : {} stopped async job due acquisition
2020-05-11 18:06:17.489 INFO 15870 --- [Catalina-utility-1] o.s.s.concurrent.ThreadPoolTaskExecutor : Shutting down ExecutorService 'primaryTaskExecutor'
2020-05-11 18:06:17.489 INFO 15870 --- [Catalina-utility-1] com.zaxxer.hikari.HikariDataSource : HikariPool-3 - Shutdown initiated...
2020-05-11 18:06:17.494 INFO 15870 --- [Catalina-utility-1] com.zaxxer.hikari.HikariDataSource : HikariPool-3 - Shutdown completed.
2020-05-11 18:06:17.505 INFO 15870 --- [Catalina-utility-1] j.LocalContainerEntityManagerFactoryBean : Closing JPA EntityManagerFactory for persistence unit 'app'
2020-05-11 18:06:17.508 INFO 15870 --- [Catalina-utility-1] com.zaxxer.hikari.HikariDataSource : HikariPool-2 - Shutdown initiated...
2020-05-11 18:06:17.514 INFO 15870 --- [Catalina-utility-1] com.zaxxer.hikari.HikariDataSource : HikariPool-2 - Shutdown completed.
Catalina log:
11-May-2020 18:06:17.618 SEVERE [Catalina-utility-1] org.apache.catalina.startup.ContextConfig.beforeStart Exception fixing docBase for context [/app]
java.util.zip.ZipException: error in opening zip file
at java.util.zip.ZipFile.open(Native Method)
at java.util.zip.ZipFile.<init>(ZipFile.java:225)
at java.util.zip.ZipFile.<init>(ZipFile.java:155)
at java.util.jar.JarFile.<init>(JarFile.java:166)
at java.util.jar.JarFile.<init>(JarFile.java:103)
at sun.net.www.protocol.jar.URLJarFile.<init>(URLJarFile.java:93)
at sun.net.www.protocol.jar.URLJarFile.getJarFile(URLJarFile.java:69)
at sun.net.www.protocol.jar.JarFileFactory.get(JarFileFactory.java:99)
at sun.net.www.protocol.jar.JarURLConnection.connect(JarURLConnection.java:122)
at sun.net.www.protocol.jar.JarURLConnection.getJarFile(JarURLConnection.java:89)
at org.apache.catalina.startup.ExpandWar.expand(ExpandWar.java:130)
at org.apache.catalina.startup.ContextConfig.fixDocBase(ContextConfig.java:608)
at org.apache.catalina.startup.ContextConfig.beforeStart(ContextConfig.java:741)
at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:303)
at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:123)
at org.apache.catalina.util.LifecycleBase.setStateInternal(LifecycleBase.java:424)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:182)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:713)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:690)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:695)
at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:978)
at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1850)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:112)
at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:773)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:427)
at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1621)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:305)
at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:123)
at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1149)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1351)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1355)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1333)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:748)
11-May-2020 18:06:17.621 SEVERE [Catalina-utility-1] org.apache.catalina.startup.HostConfig.deployWAR Error deploying web application archive [/opt/apache/to
mcat/webapps/app.war]
java.lang.IllegalStateException: Error starting child
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:716)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:690)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:695)
at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:978)
at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1850)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:112)
at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:773)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:427)
at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1621)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:305)
at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:123)
at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1149)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1351)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1355)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1333)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:748)
Caused by: org.apache.catalina.LifecycleException: Failed to initialize component [org.apache.catalina.webresources.WarResourceSet@629c5b88]
at org.apache.catalina.util.LifecycleBase.handleSubClassException(LifecycleBase.java:441)
at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:139)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:173)
at org.apache.catalina.webresources.StandardRoot.startInternal(StandardRoot.java:714)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.core.StandardContext.resourcesStart(StandardContext.java:4778)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:4913)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:713)
... 25 more
Caused by: java.lang.IllegalArgumentException: java.io.FileNotFoundException: /opt/apache/tomcat/webapps/app.war (Permission denied)
at org.apache.catalina.webresources.AbstractSingleArchiveResourceSet.initInternal(AbstractSingleArchiveResourceSet.java:143)
at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:136)
... 32 more
Caused by: java.io.FileNotFoundException: /opt/apache/tomcat/webapps/app.war (Permission denied)
at java.util.zip.ZipFile.open(Native Method)
at java.util.zip.ZipFile.<init>(ZipFile.java:225)
Caused by: org.apache.catalina.LifecycleException: Failed to initialize component [org.apache.catalina.webresources.WarResourceSet@629c5b88]
at org.apache.catalina.util.LifecycleBase.handleSubClassException(LifecycleBase.java:441)
at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:139)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:173)
at org.apache.catalina.webresources.StandardRoot.startInternal(StandardRoot.java:714)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.core.StandardContext.resourcesStart(StandardContext.java:4778)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:4913)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:713)
... 25 more
Caused by: java.lang.IllegalArgumentException: java.io.FileNotFoundException: /opt/apache/tomcat/webapps/app.war (Permission denied)
at org.apache.catalina.webresources.AbstractSingleArchiveResourceSet.initInternal(AbstractSingleArchiveResourceSet.java:143)
at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:136)
... 32 more
Caused by: java.io.FileNotFoundException: /opt/apache/tomcat/webapps/app.war (Permission denied)
at java.util.zip.ZipFile.open(Native Method)
at java.util.zip.ZipFile.<init>(ZipFile.java:225)
at java.util.zip.ZipFile.<init>(ZipFile.java:155)
at java.util.jar.JarFile.<init>(JarFile.java:166)
at java.util.jar.JarFile.<init>(JarFile.java:130)
at org.apache.tomcat.util.compat.JreCompat.jarFileNewInstance(JreCompat.java:164)
at org.apache.tomcat.util.compat.JreCompat.jarFileNewInstance(JreCompat.java:149)
at org.apache.catalina.webresources.AbstractSingleArchiveResourceSet.initInternal(AbstractSingleArchiveResourceSet.java:140)
11-May-2020 18:06:17.622 INFO [Catalina-utility-1] org.apache.catalina.startup.HostConfig.deployWAR Deployment of web application archive [/opt/apache/tomcat
/webapps/app.war] has finished in [9] ms
11-May-2020 18:06:20.758 INFO [Abandoned connection cleanup thread] org.apache.catalina.loader.WebappClassLoaderBase.checkStateForResourceLoading Illegal acc
ess: this web application instance has been stopped already. Could not load []. The following stack trace is thrown for debugging purposes as well as to atte
mpt to terminate the thread which caused the illegal access.
java.lang.IllegalStateException: Illegal access: this web application instance has been stopped already. Could not load []. The following stack trace is thr
own for debugging purposes as well as to attempt to terminate the thread which caused the illegal access.
at org.apache.catalina.loader.WebappClassLoaderBase.checkStateForResourceLoading(WebappClassLoaderBase.java:1363)
at org.apache.catalina.loader.WebappClassLoaderBase.getResource(WebappClassLoaderBase.java:1023)
at com.mysql.cj.jdbc.AbandonedConnectionCleanupThread.checkContextClassLoaders(AbandonedConnectionCleanupThread.java:96)
at com.mysql.cj.jdbc.AbandonedConnectionCleanupThread.run(AbandonedConnectionCleanupThread.java:69)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
created a ThreadLocal with key of type [weblogic.kernel.ResettableThreadLocal$1] (value [weblogic.kernel.ResettableThreadLocal$1@78a01fa6]) and a value of ty
pe [weblogic.kernel.ResettableThreadLocal.ThreadStorage] (value [weblogic.kernel.ResettableThreadLocal$ThreadStorage@7800a197]) but failed to remove it when
the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.
11-May-2020 18:06:17.621 SEVERE [Catalina-utility-1] org.apache.catalina.startup.HostConfig.deployWAR Error deploying web application archive [/opt/apache/to
mcat/webapps/app.war]
java.lang.IllegalStateException: Error starting child
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:716)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:690)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:695)
at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:978)
at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1850)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:112)
at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:773)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:427)
at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1621)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:305)
at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:123)
at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1149)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1351)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1355)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1333)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:748)
Caused by: org.apache.catalina.LifecycleException: Failed to initialize component [org.apache.catalina.webresources.WarResourceSet@629c5b88]
at org.apache.catalina.util.LifecycleBase.handleSubClassException(LifecycleBase.java:441)
at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:139)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:173)
at org.apache.catalina.webresources.StandardRoot.startInternal(StandardRoot.java:714)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.core.StandardContext.resourcesStart(StandardContext.java:4778)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:4913)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:713)
... 25 more
Caused by: java.lang.IllegalArgumentException: java.io.FileNotFoundException: /opt/apache/tomcat/webapps/app.war (Permission denied)
at org.apache.catalina.webresources.AbstractSingleArchiveResourceSet.initInternal(AbstractSingleArchiveResourceSet.java:143)
at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:136)
... 32 more
Caused by: java.io.FileNotFoundException: /opt/apache/tomcat/webapps/app.war (Permission denied)
at java.util.zip.ZipFile.open(Native Method)
at java.util.zip.ZipFile.<init>(ZipFile.java:225)
Caused by: org.apache.catalina.LifecycleException: Failed to initialize component [org.apache.catalina.webresources.WarResourceSet@629c5b88]
at org.apache.catalina.util.LifecycleBase.handleSubClassException(LifecycleBase.java:441)
at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:139)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:173)
at org.apache.catalina.webresources.StandardRoot.startInternal(StandardRoot.java:714)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.core.StandardContext.resourcesStart(StandardContext.java:4778)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:4913)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:713)
... 25 more
Caused by: java.lang.IllegalArgumentException: java.io.FileNotFoundException: /opt/apache/tomcat/webapps/app.war (Permission denied)
at org.apache.catalina.webresources.AbstractSingleArchiveResourceSet.initInternal(AbstractSingleArchiveResourceSet.java:143)
at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:136)
... 32 more
Caused by: java.io.FileNotFoundException: /opt/apache/tomcat/webapps/app.war (Permission denied)
at java.util.zip.ZipFile.open(Native Method)
at java.util.zip.ZipFile.<init>(ZipFile.java:225)
at java.util.zip.ZipFile.<init>(ZipFile.java:155)
at java.util.jar.JarFile.<init>(JarFile.java:166)
at java.util.jar.JarFile.<init>(JarFile.java:130)
at org.apache.tomcat.util.compat.JreCompat.jarFileNewInstance(JreCompat.java:164)
at org.apache.tomcat.util.compat.JreCompat.jarFileNewInstance(JreCompat.java:149)
at org.apache.catalina.webresources.AbstractSingleArchiveResourceSet.initInternal(AbstractSingleArchiveResourceSet.java:140)
11-May-2020 18:06:17.622 INFO [Catalina-utility-1] org.apache.catalina.startup.HostConfig.deployWAR Deployment of web application archive [/opt/apache/tomcat
/webapps/app.war] has finished in [9] ms
11-May-2020 18:06:20.758 INFO [Abandoned connection cleanup thread] org.apache.catalina.loader.WebappClassLoaderBase.checkStateForResourceLoading Illegal acc
ess: this web application instance has been stopped already. Could not load []. The following stack trace is thrown for debugging purposes as well as to atte
mpt to terminate the thread which caused the illegal access.
java.lang.IllegalStateException: Illegal access: this web application instance has been stopped already. Could not load []. The following stack trace is thr
own for debugging purposes as well as to attempt to terminate the thread which caused the illegal access.
at org.apache.catalina.loader.WebappClassLoaderBase.checkStateForResourceLoading(WebappClassLoaderBase.java:1363)
at org.apache.catalina.loader.WebappClassLoaderBase.getResource(WebappClassLoaderBase.java:1023)
at com.mysql.cj.jdbc.AbandonedConnectionCleanupThread.checkContextClassLoaders(AbandonedConnectionCleanupThread.java:96)
at com.mysql.cj.jdbc.AbandonedConnectionCleanupThread.run(AbandonedConnectionCleanupThread.java:69)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
11-May-2020 18:06:17.527 WARNING [Catalina-utility-1] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesJdbc The web application [app] register
ed the JDBC driver [com.mysql.cj.jdbc.Driver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has
been forcibly unregistered.
11-May-2020 18:06:17.530 WARNING [Catalina-utility-1] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [app] appea
rs to have started a thread named [Abandoned connection cleanup thread] but has failed to stop it. This is very likely to create a memory leak. Stack trace o
f thread:
java.lang.Object.wait(Native Method)
java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:144)
com.mysql.cj.jdbc.AbandonedConnectionCleanupThread.run(AbandonedConnectionCleanupThread.java:70)
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
java.lang.Thread.run(Thread.java:748)
11-May-2020 18:06:17.531 WARNING [Catalina-utility-1] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [app] appea
rs to have started a thread named [weblogic.timers.TimerThread] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread
:
java.lang.Object.wait(Native Method)
weblogic.timers.internal.TimerThread.doWait(TimerThread.java:115)
weblogic.timers.internal.TimerThread.access$000(TimerThread.java:21)
weblogic.timers.internal.TimerThread$Thread.run(TimerThread.java:291)
11-May-2020 18:06:17.532 WARNING [Catalina-utility-1] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [app] appea
11-May-2020 18:06:17.535 WARNING [Catalina-utility-1] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [app] appea
共 (0) 个答案