On 10/09/2009, at 6:41 AM, Khan, Baseer wrote:
>
> When I searched for it shows me the memory needs to be increased
> for tomcat ,
>
> This is the output of the free command on the server
>
>
>
I picked up the following jsp page for revealing memory state you
could find useful. To use, put it in your webapps directory as `mem-
status.jsp' and point your browser at it. It is as follows:
1 <%@ page import="java.lang.management.*" %>
2 <%@ page import="java.util.*" %>
3 <html>
4 <head>
5 <title>JVM Memory Monitor</title>
6 </head>
7 </html>
8 <table border="0" width="100%">
9 <tr><td colspan="2" align="center"><h3>Memory MXBean</h3></
td></tr>
10 <tr><td
11 width="200">Heap Memory Usage</td><td>
12 <%=
13 ManagementFactory.getMemoryMXBean().getHeapMemoryUsage()
14 %>
15 </td></tr>
16 <tr><td>Non-Heap Memory
17 Usage</td><td>
18 <%=
19 ManagementFactory.getMemoryMXBean().getNonHeapMemoryUsage()
20 %>
21 </td></tr>
22 <tr><td colspan="2"> </td></tr>
23 <tr><td colspan="2" align="center"><h3>Memory Pool MXBeans</
h3></td></tr>
24 <%
25 Iterator iter = ManagementFactory.getMemoryPoolMXBeans
().iterator();
26 while (iter.hasNext()) {
27 MemoryPoolMXBean item = (MemoryPoolMXBean)
iter.next();
28 %>
29 <tr><td colspan="2">
30 <table border="0" width="100%" style="border: 1px #98AAB1
solid;">
31 <tr><td colspan="2" align="center"><b><%= item.getName() %></
b></td></tr>
32 <tr><td width="200">Type</td><td><%= item.getType() %></td></tr>
33 <tr><td>Usage</td><td><%= item.getUsage() %></td></tr>
34 <tr><td>Peak Usage</td><td><%= item.getPeakUsage() %></td></tr>
35 <tr><td>Collection Usage</td><td><%= item.getCollectionUsage
() %></td></tr>
36 </table>
37 </td></tr>
38 <tr><td colspan="2"> </td></tr>
39 <%
40 }
41 %>
42 </table>
43 <pre>HERE</pre>
Best wishes,
Van Ly
vly at usyd dot edu dot au
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