[Tomcat] 웹 어플리케이션 - 메모리부족시 발생하는 톰캣에러로그

환경정보

• 윈도우서버 2012 R2
• JDK 1.7
• Tomcat 7.x
• WebApplication - SpringFramework / iBatis

 

11월 24, 2022 11:49:13 오전 org.apache.catalina.core.StandardService stopInternal
정보: Stopping service Catalina
11월 24, 2022 11:49:13 오전 org.apache.catalina.loader.WebappClassLoader clearReferencesJdbc
심각: The web application [] registered the JDBC driver [oracle.jdbc.OracleDriver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered.
11월 24, 2022 11:49:13 오전 org.apache.catalina.loader.WebappClassLoader clearReferencesThreads
심각: The web application [] appears to have started a thread named [PoolCleaner[891364505:1669257967088]] but has failed to stop it. This is very likely to create a memory leak.
11월 24, 2022 11:49:13 오전 org.apache.catalina.loader.WebappClassLoader clearReferencesThreads
심각: The web application [] appears to have started a thread named [OracleTimeoutPollingThread] but has failed to stop it. This is very likely to create a memory leak.
11월 24, 2022 11:49:13 오전 org.apache.catalina.loader.WebappClassLoader checkThreadLocalMapForLeaks
심각: The web application [] created a ThreadLocal with key of type [org.apache.commons.lang.builder.ToStringStyle$1] (value [org.apache.commons.lang.builder.ToStringStyle$1@5d5c3e78]) and a value of type [java.util.HashSet] (value [[]]) 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.
11월 24, 2022 11:49:13 오전 org.apache.catalina.loader.WebappClassLoader checkThreadLocalMapForLeaks
심각: The web application [] created a ThreadLocal with key of type [org.apache.commons.lang.builder.ToStringStyle$1] (value [org.apache.commons.lang.builder.ToStringStyle$1@5d5c3e78]) and a value of type [java.util.HashSet] (value [[]]) 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.
11월 24, 2022 11:49:13 오전 org.apache.catalina.loader.WebappClassLoader checkThreadLocalMapForLeaks
심각: The web application [] created a ThreadLocal with key of type [java.lang.ThreadLocal] (value [java.lang.ThreadLocal@5309682a]) and a value of type [org.apache.ibatis.executor.ErrorContext] (value [

 

메모리가 부족하여 thread 를 멈추지도 못하고 생성도 할 수 없는 상태가 되면서 사이트에 접속못하는 상황이 발생된다.