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쓰레드 덤프보는 JSP (threaddump.jsp)

by apollo89 Posted on 2013년 11월 1일

Notice : 해당 자료가 저작권등에 의해서 문제가 있다면 바로 삭제하겠습니다. 연구목적으로 사용하지 않고 악의적인 목적으로 이용할 경우 발생할 수 있는 법적은 책임은 모두 본인에게 있습니다. 쓰레드 덤프보는 JSP (threaddump.jsp) 완전 멋지다!ㅋ

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<%-- 
This source is under a creative common license. (Attribution Non-Commercial)
You can use it for non-commercial purposes only.

Author: Dongyoul Kim
Blog: http://greatkim91.tistory.com
Twitter: greatkim91
--%>
<%@ page contentType="text/html; charset=UTF-8" %>
<%@ page import="java.util.List"%>
<%@ page import="java.util.ArrayList"%>
<%@ page import="java.util.Collections"%>
<%@ page import="java.util.Comparator"%>
<%@ page import="java.lang.management.ManagementFactory"%>
<%@ page import="java.lang.management.MemoryMXBean"%>
<%@ page import="java.lang.management.MemoryUsage"%>
<%@ page import="java.text.DecimalFormat"%>
<%@ page import="java.text.NumberFormat"%>
<%@ page import="java.lang.management.ThreadInfo"%>
<%@ page import="java.lang.management.ThreadMXBean"%>

<%!
	private static String kbytes(long l) {
		NumberFormat nf = new DecimalFormat("#,###");
		return nf.format(l/1000);
	}
	
	private static String percent(double l) {
		NumberFormat nf = new DecimalFormat("#.#");
		return nf.format(l);
	}
	
	private static List<ThreadInfo> loadThreadInfo() {
		ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
		ThreadInfo[] threadInfoArray = threadMXBean.getThreadInfo(threadMXBean.getAllThreadIds(), Integer.MAX_VALUE);
		
		List<ThreadInfo> threadInfos = new ArrayList<ThreadInfo>(threadInfoArray.length);
		for (ThreadInfo threadInfo : threadInfoArray) {
			threadInfos.add(threadInfo);
		}
		
		Collections.sort(
				threadInfos,
				new Comparator() {
					public int compare(Object o1, Object o2) {
						if (o1 == null || o2 == null) return 0;
						ThreadInfo t1 = (ThreadInfo) o1;
						ThreadInfo t2 = (ThreadInfo) o2;
						return t1.getThreadName().compareTo(t2.getThreadName());
					}
					
				}
				
		);
		return threadInfos;
	}
%>
<html>
<head>
<title>Thread dump</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta http-equiv="cache-control" content="no-cache" />
<meta http-equiv="Pragma" content="no-cache" />
<style type="text/css">
<!--
body {
	font: 12px sans-serif;
}

table {
	border: 0px solid #DEDEDE;
}

td, th {
	border: 1px solid #DEDEDE;
	padding: 1px 10px;
}

.right {
	text-align: right;
}
-->
</style>
</head>
<body>
<%
	String uri = request.getRequestURI();
	String namePrefix = request.getParameter("name");
	String stateParam = request.getParameter("state");
	long threadId;
	try {
		threadId = Long.parseLong(request.getParameter("tid"));
	} catch(Exception e) {
		threadId = -1;
	}

	// Memory Info
	MemoryMXBean memoryMXBean = ManagementFactory.getMemoryMXBean();
	MemoryUsage heapMemoryUsage = memoryMXBean.getHeapMemoryUsage();
	MemoryUsage nonHeapMemoryUsage = memoryMXBean.getNonHeapMemoryUsage();
	
	double heapUsedPercent = ((double)heapMemoryUsage.getUsed()/(double)heapMemoryUsage.getMax()) * 100.0D;
	double nonHeapUsedPercent = ((double)nonHeapMemoryUsage.getUsed()/(double)nonHeapMemoryUsage.getMax()) * 100.0D;
%>

<table>
<tr>
<th>Area</th>
<th>Init (KB)</th>
<th>Max (KB)</th>
<th>Used (KB)</th>
<th>Used(%)</th>
</tr>
<tr>
<td>Heap</td>
<td class="right"><%=kbytes(heapMemoryUsage.getInit())%></td>
<td class="right"><%=kbytes(heapMemoryUsage.getMax())%></td>
<td class="right"><%=kbytes(heapMemoryUsage.getUsed())%></td>
<td class="right"><%=percent(heapUsedPercent)%></td>
</tr>
<tr>
<td>Non Heap</td>
<td class="right"><%=kbytes(nonHeapMemoryUsage.getInit())%></td>
<td class="right"><%=kbytes(nonHeapMemoryUsage.getMax())%></td>
<td class="right"><%=kbytes(nonHeapMemoryUsage.getUsed())%></td>
<td class="right"><%=percent(nonHeapUsedPercent)%></td>
</tr>
</table>

<hr/>
<form method="get">
	Show only what thread name starts with <input type="text" name="name" value="<%=(namePrefix != null ? namePrefix : "")%>"/> and thread state is 
	<select name="state">
		<option value="all">All</option>
		<%
			for(Thread.State threadState: Thread.State.values()) {
				boolean selected = threadState.toString().equals(stateParam); 
		%>
		<option value="<%=threadState%>"<%=selected ? " selected=\"true\"" : ""%>><%=threadState%></option>
		<% } %>
	</select>
	<input type="submit" value="go!"/>
</form>
<% if(threadId != -1 || (namePrefix != null && namePrefix.trim().length() > 0)) { %>
<a href="<%=uri%>">Show all threads</a>
<% } %>

<%
	// Thread info
	for(ThreadInfo threadInfo : loadThreadInfo()) {
		StackTraceElement[] stackTraces = threadInfo.getStackTrace();
		
		// filter the current thread
		if (threadInfo.getThreadId() == Thread.currentThread().getId()) continue;
		
		// filter name
		if (namePrefix != null && namePrefix.trim().length() > 0) {
			if (!threadInfo.getThreadName().startsWith(namePrefix)) continue;
		}
		
		// filter state
		if (stateParam != null && !stateParam.equals("all")) {
			if (!threadInfo.getThreadState().toString().equals(stateParam)) continue;
		}
		
		// show only specific thread id
		if (threadId != -1) {
			if (threadInfo.getThreadId() != threadId) continue;
		}
%>
<dl>
<dt>
<b><%=threadInfo.getThreadName()%> (<%=threadInfo.getThreadState()%>)</b> - 
<a href="<%=uri%>?tid=<%=threadInfo.getThreadId()%>"><%=threadInfo.getThreadId()%></a>
</dt>
<dd>
<pre>
<%
		for(int i = 0; i < stackTraces.length; i++) {
			out.println(stackTraces[i]);
		}
%>
</pre>
</dd>
</dl>
<%
	}
%>

</body>
</html>

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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<%--

This source is under a creative common license. (Attribution Non-Commercial)

You can use it for non-commercial purposes only.

Author: Dongyoul Kim

Blog: http://greatkim91.tistory.com

Twitter: greatkim91

--%>

<%@ page contentType="text/html; charset=UTF-8" %>

<%@ page import="java.util.List"%>

<%@ page import="java.util.ArrayList"%>

<%@ page import="java.util.Collections"%>

<%@ page import="java.util.Comparator"%>

<%@ page import="java.lang.management.ManagementFactory"%>

<%@ page import="java.lang.management.MemoryMXBean"%>

<%@ page import="java.lang.management.MemoryUsage"%>

<%@ page import="java.text.DecimalFormat"%>

<%@ page import="java.text.NumberFormat"%>

<%@ page import="java.lang.management.ThreadInfo"%>

<%@ page import="java.lang.management.ThreadMXBean"%>

<%!

private static String kbytes(long l) {

NumberFormat nf = new DecimalFormat("#,###");

return nf.format(l/1000);

}

private static String percent(double l) {

NumberFormat nf = new DecimalFormat("#.#");

return nf.format(l);

}

private static List<ThreadInfo> loadThreadInfo() {

ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();

ThreadInfo[] threadInfoArray = threadMXBean.getThreadInfo(threadMXBean.getAllThreadIds(), Integer.MAX_VALUE);

List<ThreadInfo> threadInfos = new ArrayList<ThreadInfo>(threadInfoArray.length);

for (ThreadInfo threadInfo : threadInfoArray) {

threadInfos.add(threadInfo);

}

Collections.sort(

threadInfos,

new Comparator() {

public int compare(Object o1, Object o2) {

if (o1 == null || o2 == null) return 0;

ThreadInfo t1 = (ThreadInfo) o1;

ThreadInfo t2 = (ThreadInfo) o2;

return t1.getThreadName().compareTo(t2.getThreadName());

}

);

return threadInfos;

}

<html>

<head>

<title>Thread dump</title>

<!--

body {

font: 12px sans-serif;

}

table {

border: 0px solid #DEDEDE;

}

td, th {

border: 1px solid #DEDEDE;

padding: 1px 10px;

}

.right {

text-align: right;

}

-->

</style>

</head>

<body>

String uri = request.getRequestURI();

String namePrefix = request.getParameter("name");

String stateParam = request.getParameter("state");

long threadId;

try {

threadId = Long.parseLong(request.getParameter("tid"));

} catch(Exception e) {

threadId = -1;

}

// Memory Info

MemoryMXBean memoryMXBean = ManagementFactory.getMemoryMXBean();

MemoryUsage heapMemoryUsage = memoryMXBean.getHeapMemoryUsage();

MemoryUsage nonHeapMemoryUsage = memoryMXBean.getNonHeapMemoryUsage();

double heapUsedPercent = ((double)heapMemoryUsage.getUsed()/(double)heapMemoryUsage.getMax()) * 100.0D;

double nonHeapUsedPercent = ((double)nonHeapMemoryUsage.getUsed()/(double)nonHeapMemoryUsage.getMax()) * 100.0D;

<table>

<tr>

</tr>

<tr>

</tr>

<tr>

</tr>

</table>

<hr/>

Show only what thread name starts with <input type="text" name="name" value="<%=(namePrefix != null ? namePrefix : "")%>"/> and thread state is

for(Thread.State threadState: Thread.State.values()) {

boolean selected = threadState.toString().equals(stateParam);

<% } %>

</select>

</form>

<% if(threadId != -1 || (namePrefix != null && namePrefix.trim().length() > 0)) { %>

<a href="<%=uri%>">Show all threads</a>

<% } %>

// Thread info

for(ThreadInfo threadInfo : loadThreadInfo()) {

StackTraceElement[] stackTraces = threadInfo.getStackTrace();

// filter the current thread

if (threadInfo.getThreadId() == Thread.currentThread().getId()) continue;

// filter name

if (namePrefix != null && namePrefix.trim().length() > 0) {

if (!threadInfo.getThreadName().startsWith(namePrefix)) continue;

}

// filter state

if (stateParam != null && !stateParam.equals("all")) {

if (!threadInfo.getThreadState().toString().equals(stateParam)) continue;

}

// show only specific thread id

if (threadId != -1) {

if (threadInfo.getThreadId() != threadId) continue;

}

<dl>

<dt>

<b><%=threadInfo.getThreadName()%> (<%=threadInfo.getThreadState()%>)</b> -

</dt>

<dd>

<pre>

for(int i = 0; i < stackTraces.length; i++) {

out.println(stackTraces[i]);

}

</pre>

</dd>

</dl>

}

</body>

</html>

간단한 메모리 정보와 현재 쓰레드들의 스택들을 보여줍니다. … Continue reading →

Posted in Java/JSP, Util/Tools | Tagged jsp, threaddump | Leave a comment

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by apollo89 Posted on 2007년 6월 14일

jsp 런타임 메모리 확인

<%@ page session="false" contentType="text/html" %>
<html><body>
<b><%= java.net.InetAddress.getLocalHost().getHostAddress() %></b>
<%= new java.util.Date() %><br><br>

<%
   Runtime rt = Runtime.getRuntime();
   long free = rt.freeMemory();
   long total = rt.totalMemory();
   out.println("Free  = <b>"+(free/1024/1024) +"</b> MB ("+free +" bytes)<br>");
   out.println("Total = <b>"+(total/1024/1024)+"</b> MB ("+total+" bytes)<br>");
%>
</body></html>

<%@ page session="false" contentType="text/html" %>

<%= new java.util.Date() %><br><br>

Runtime rt = Runtime.getRuntime();

long free = rt.freeMemory();

long total = rt.totalMemory();

out.println("Free = <b>"+(free/1024/1024) +"</b> MB ("+free +" bytes)<br>");

out.println("Total = <b>"+(total/1024/1024)+"</b> MB ("+total+" bytes)<br>");

</body></html>

Posted in Java/JSP | Tagged jsp, 메모리 | Leave a comment

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Tag Archives: jsp

쓰레드 덤프보는 JSP (threaddump.jsp)

apache2.2 와 tomcat6 연동하여 php와 jsp 사용하기

Get 방식으로 데이터 전송시 한글깨짐 java, jsp Tomcat

jsp 런타임 메모리 확인

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