Tomcat项目404，报WARNING：org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads

最新推荐文章于 2025-01-25 22:17:20 发布

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最新推荐文章于 2025-01-25 22:17:20 发布 · 7k 阅读

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#linux #tomcat

本文记录了阿里云服务器续费后，Tomcat启动出现404错误的问题排查过程。问题根源在于MySQL服务未启动，通过service mysqld start命令解决了这一问题。

前些日子买的阿里云服务器到期了，服务器停机几天后续费，重启tomcat时报错：

07-Aug-2019 16:56:41.056 WARNING [Catalina-utility-2] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [EnglishClub] appears 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 of 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)

刚开始也没咋注意，认为就一个WARNING，又不是ERROR，但不曾想tomcat启动后项目一直404。

疯狂debug后发现，问题在它：