当我在tomcat中重新部署我的应用程序时,我遇到以下问题:
The web application [] created a ThreadLocal with key of type
[java.lang.ThreadLocal] (value [java.lang.ThreadLocal@10d16b])
and a value of type [com.sun.xml.bind.v2.runtime.property.SingleElementLeafProperty]
(value [com.sun.xml.bind.v2.runtime.property.SingleElementLeafProperty@1a183d2]) but
failed to remove it when the web application was stopped.
This is very likely to create a memory leak.
另外,我在我的应用程序中使用ehcache.这似乎也导致以下异常.
SEVERE: The web application [] created a ThreadLocal with key of type [null]
(value [com.sun.xml.bind.v2.ClassFactory$1@24cdc7]) and a value of type [java
.util.WeakHashMap...
ehcache似乎创建了一个弱哈希映射,我得到的消息是,这很可能会造成内存泄漏.
我在网上搜索并发现了这个, http://jira.pentaho.com/browse/PRD-3616但是我没有这样的服务器访问权限.
如果这些警告有任何功能影响或是否可以忽略,请告诉我？我在tomcat管理器中使用了"查找内存泄漏"选项,它说"没有发现内存泄漏"
每当我停止或重新部署webapp时,我都会看到很多类似的错误,
msg=The web application [] created a ThreadLocal with key of type [] (value []) and
a value of type [] (value []) but failed to remove it when the web application was
stopped. Threads are going to be renewed over time to try and avoid probable memory leak
我不是在我的应用程序中创建任何ThreadLocals,而是引用可能正在创建这些ThreadLocals的许多库.我们目前正在使用Tomcat 7.我已经遇到过其他类似的问题[在Tomcat中重新部署应用程序时内存泄漏或catalina.out中的这些警告是什么？]但是所有这些只是暗示这是Tomcat功能警告你ThreadLocals没有被删除.我没有看到删除ThreadLocals的任何答案.我也看到一些关于线程没有停止的错误,
msg=The web application [] appears to have started a thread named [] but has
failed to stop it. This is very likely to create a …我尝试部署我的war文件.
但成功部署后.
我得到这个日志:
[root@dfdfdf bin]# export JAVA_HOME="/usr/java/jdk1.8.0_112/"
[root@dfdfdfdbin]# ./startup.sh
Using CATALINA_BASE: /root/apache-tomcat-8.5.8
Using CATALINA_HOME: /root/apache-tomcat-8.5.8
Using CATALINA_TMPDIR: /root/apache-tomcat-8.5.8/temp
Using JRE_HOME: /usr/java/jdk1.8.0_112/
Using CLASSPATH: /root/apache-tomcat-8.5.8/bin/bootstrap.jar:/root/apache-tomcat-8.5.8/bin/tomcat-juli.jar
Tomcat started.
[root@satubangau bin]# tail -f ../logs/catalina.out
06-Feb-2017 07:21:27.881 SEVERE [localhost-startStop-2] org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalMapForLeaks The web application [ROOT] created a ThreadLocal with key of type [org.springframework.core.NamedThreadLocal] (value [Request attributes]) and a value of type [org.grails.web.servlet.mvc.GrailsWebRequest] (value [ServletWebRequest: uri=/error]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to …