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JVM Heap overflow due to JSP empty page

Source: Internet
Author: User
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For performance testing needs, write a simple JSP page:

　　

<%@ Page ContentType="Text/html;charset=utf-8"language="Java"%><HTML><Head><Body>    <%        LongL=System.currenttimemillis (); Doubles=MATH.CBRT (L); if((S*2)%8==0){    %>Docker is<%=L%>     <%             }     %></Body></HTML>

During the testing process, it was found that there was a leak in the JVM heap! This is really confusing. After Baidu found to load JSP every request to accept Tomcat, will open a session for this request, and this session occupied by the memory for a period of time to release!

Make the following adjustments,

1. JSP compiler instructions to join the session configuration:

　　

<%@ Page ContentType="Text/html;charset=utf-8"language="Java" session="false"  %>

2. The expiration time of the configured session in Tomcat is 0

< Session-config >          < Session-timeout ></session-timeout></session-config >

Problem solved!

JVM Heap overflow due to JSP empty page

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