yoavs 2004/02/05 07:36:32
Modified: docs/faq deployment.html
xdocs-faq deployment.xml
Log:
Revision Changes Path
1.3 +18 -0 jakarta-tomcat-site/docs/faq/deployment.html
Index: deployment.html
===================================================================
RCS file: /home/cvs/jakarta-tomcat-site/docs/faq/deployment.html,v
retrieving revision 1.2
retrieving revision 1.3
diff -u -r1.2 -r1.3
--- deployment.html 5 Feb 2004 14:25:20 -0000 1.2
+++ deployment.html 5 Feb 2004 15:36:32 -0000 1.3
@@ -15,6 +15,11 @@
Why does tomcat 5 create context configuration files?
</a>
</li>
+ <li>
+ <a href="deployMemIncrease">
+ Why does the memory usage increase when I redeploy a web application?
+ </a>
+ </li>
</ul>
</p>
</blockquote></td></tr></table><table cellpadding="2" cellspacing="0"
border="0"><tr><td bgcolor="#525D76"><font face="arial,helvetica.sanserif"
color="#ffffff"><a
name="Answers"><strong>Answers</strong></a></font></td></tr><tr><td><blockquote>
@@ -36,6 +41,19 @@
of your webapp, and use Tomcat's Manager webapp to deploy/undeploy your
applications.
More details can be found here:
<a
href="http://marc.theaimsgroup.com/?l=tomcat-user&m=107590945807699&w=2";>MARC
Archive</a>
+ </div><br>
+
+ <b style="font-size: larger">
+ <a name="deployMemIncrease">
+ Why does the memory usage increase when I redeploy a web application?
+ </a>
+ </b>
+
+ <div style="padding-left : 20px;">
+ Because the Classloader (and the Class objects it loaded) cannot be
+ recycled. They are stored in the permanent heap generation by the JVM,
+ and when you redepoy a new class loader is created, which loads another
+ copy of all these classes. This can cause OufOfMemoryErrors eventually.
</div><br>
</p>
</blockquote></td></tr></table></td></tr><!--FOOTER SEPARATOR--><tr><td
colspan="2"><hr size="1" noshade=""></td></tr><!--PAGE FOOTER--><tr><td
colspan="2"><div align="center"><font size="-1" color="#525D76"><em>
1.3 +18 -0 jakarta-tomcat-site/xdocs-faq/deployment.xml
Index: deployment.xml
===================================================================
RCS file: /home/cvs/jakarta-tomcat-site/xdocs-faq/deployment.xml,v
retrieving revision 1.2
retrieving revision 1.3
diff -u -r1.2 -r1.3
--- deployment.xml 5 Feb 2004 14:25:20 -0000 1.2
+++ deployment.xml 5 Feb 2004 15:36:32 -0000 1.3
@@ -27,6 +27,11 @@
Why does tomcat 5 create context configuration files?
</a>
</li>
+ <li>
+ <a href="deployMemIncrease">
+ Why does the memory usage increase when I redeploy a web application?
+ </a>
+ </li>
</ul>
</p>
</section>
@@ -51,6 +56,19 @@
of your webapp, and use Tomcat's Manager webapp to deploy/undeploy your
applications.
More details can be found here:
<a
href="http://marc.theaimsgroup.com/?l=tomcat-user&m=107590945807699&w=2";>MARC
Archive</a>
+ </answer>
+
+ <question>
+ <a name="deployMemIncrease">
+ Why does the memory usage increase when I redeploy a web application?
+ </a>
+ </question>
+
+ <answer>
+ Because the Classloader (and the Class objects it loaded) cannot be
+ recycled. They are stored in the permanent heap generation by the JVM,
+ and when you redepoy a new class loader is created, which loads another
+ copy of all these classes. This can cause OufOfMemoryErrors eventually.
</answer>
</p>
</section>
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