如何利用免费的网络资源开展网络营销
2009-05-06 16:22
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最近帮一个朋友做了一个网站，开始因考虑到访问量不算太高，采用了ACCESS作为数据库，采用了JDBC-ODBC驱动桥接方式。写到配置文件中加载到内存，供系统运行时使用。
<dbconfig>
<type>access</type>
<driver>sun.jdbc.odbc.JdbcOdbcDriver</driver>
<url>jdbc:odbc:Driver={MicroSoft Access Driver (*.mdb)};DBQ=D://tomcat5.0//server//default//deploy//web-tomcat50.sar//ROOT.war//res//DBSystem.mdb</url>
<user></user>
<password></password>
</dbconfig>
在网站做好后，当时只做了一些功能测试，没有做压力测试，在现场运行几天后开始出现运行一段时间后JVM CRASH掉了，最后不得不每次重新启动，后来更是越来越频繁，一天甚至十次以上。接到朋友电话后，朋友说每天都有客户打电话说网站挂了，让我感到心里一个沉重的石头压下来了，没想到一个简单的网站竟然出了这般严重的一级故障，到现场看了一下，LOG中的运行日志没有异常，在服务器BIN目录，找到服务器CRASH的堆栈日志：
#
# An unexpected error has been detected by HotSpot Virtual Machine:
#
# EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x7c95f350, pid=3964, tid=4024
#
# Java VM: Java HotSpot(TM) Client VM (1.5.0-b64 mixed mode)
# Problematic frame:
# C [ntdll.dll+0x2f350]
#
--------------- T H R E A D ---------------
Current thread (0x275ad650): JavaThread "http-0.0.0.0-80-Processor21" daemon [_thread_in_native, id=4024]
siginfo: ExceptionCode=0xc0000005, writing address 0x00000008
Registers:
EAX=0x00000000, EBX=0x00000000, ECX=0x00000008, EDX=0x00000004
ESP=0x2879ed14, EBP=0x2879ed20, ESI=0x00000008, EDI=0x00000000
EIP=0x7c95f350, EFLAGS=0x00010297
Top of Stack: (sp=0x2879ed14)
0x2879ed14: 00000000 00000000 00000008 2879ed3c
0x2879ed24: 4b784c16 00000004 28a22f8c 4b7527af
0x2879ed34: 28a22f8c 28a22f68 2879ed74 4b758af9
0x2879ed44: 28a22f8c 4b780000 275ad70c 23e621d0
0x2879ed54: 00000001 00000000 2879ed48 2879e940
0x2879ed64: 2879fce8 4b785705 4b758ac8 ffffffff
0x2879ed74: 2879ed8c 4b758a9d 28a22f68 2879edac
0x2879ed84: 26e80418 275ad70c 2879eda4 6d371157
Instructions: (pc=0x7c95f350)
0x7c95f340: 56 8d 72 04 57 89 75 fc b8 00 00 00 00 8b 4d fc
0x7c95f350: f0 0f b3 01 0f 92 c0 84 c0 0f 84 95 0f 00 00 64
Stack: [0x28760000,0x287a0000), sp=0x2879ed14, free space=251k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
C [ntdll.dll+0x2f350]
C [ODBC32.dll+0x34c16]
C [ODBC32.dll+0x8af9]
C [ODBC32.dll+0x8a9d]
C [JdbcOdbc.dll+0x1157]
j sun.jdbc.odbc.JdbcOdbc.allocConnect(J[B)J+0
j sun.jdbc.odbc.JdbcOdbc.SQLAllocConnect(J)J+30
j sun.jdbc.odbc.JdbcOdbcDriver.allocConnection(J)J+6
j sun.jdbc.odbc.JdbcOdbcConnection.initialize(Ljava/lang/String;Ljava/util/Properties;I)V+37
j sun.jdbc.odbc.JdbcOdbcDriver.connect(Ljava/lang/String;Ljava/util/Properties;)Ljava/sql/Connection;+129
j java.sql.DriverManager.getConnection(Ljava/lang/String;Ljava/util/Properties;Ljava/lang/ClassLoader;)Ljava/sql/Connection;+165
j java.sql.DriverManager.getConnection(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)Ljava/sql/Connection;+41
j com.foxliucong.common.supportservice.database.DataBaseManager.<init>(Ljava/lang/String;)V+80
j org.apache.jsp.indexdisplay.topic_005fzfwj_jsp._jspService(Ljavax/servlet/http/HttpServletRequest;Ljavax/servlet/http/HttpServletResponse;)V+309
j org.apache.jasper.runtime.HttpJspBase.service(Ljavax/servlet/http/HttpServletRequest;Ljavax/servlet/http/HttpServletResponse;)V+3
j javax.servlet.http.HttpServlet.service(Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;)V+30
j org.apache.jasper.servlet.JspServletWrapper.service(Ljavax/servlet/http/HttpServletRequest;Ljavax/servlet/http/HttpServletResponse;Z)V+193
j org.apache.jasper.servlet.JspServlet.serviceJspFile(Ljavax/servlet/http/HttpServletRequest;Ljavax/servlet/http/HttpServletResponse;Ljava/lang/String;Ljava/lang/Throwable;Z)V+142
j org.apache.jasper.servlet.JspServlet.service(Ljavax/servlet/http/HttpServletRequest;Ljavax/servlet/http/HttpServletResponse;)V+440
j javax.servlet.http.HttpServlet.service(Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;)V+30
j org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;)V+478
j org.apache.catalina.core.ApplicationFilterChain.doFilter(Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;)V+101
j org.apache.catalina.core.StandardWrapperValve.invoke(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;Lorg/apache/catalina/ValveContext;)V+619
J org.apache.catalina.core.StandardValveContext.invokeNext(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;)V
J org.apache.catalina.core.StandardPipeline.invoke(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;)V
j org.apache.catalina.core.StandardContextValve.invokeInternal(Lorg/apache/catalina/Wrapper;Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;)V+172
j org.apache.catalina.core.StandardContextValve.invoke(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;Lorg/apache/catalina/ValveContext;)V+228
J org.apache.catalina.core.StandardValveContext.invokeNext(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;)V
v ~RuntimeStub::alignment_frame_return Runtime1 stub
j org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;Lorg/apache/catalina/ValveContext;)V+350
J org.apache.catalina.core.StandardValveContext.invokeNext(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;)V
J org.apache.catalina.core.StandardPipeline.invoke(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;)V
v ~RuntimeStub::alignment_frame_return Runtime1 stub
j org.apache.catalina.core.StandardHostValve.invoke(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;Lorg/apache/catalina/ValveContext;)V+87
J org.apache.catalina.core.StandardValveContext.invokeNext(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;)V
j org.apache.catalina.valves.ErrorReportValve.invoke(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;Lorg/apache/catalina/ValveContext;)V+3
J org.apache.catalina.core.StandardValveContext.invokeNext(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;)V
v ~RuntimeStub::alignment_frame_return Runtime1 stub
j org.jboss.web.tomcat.tc5.jca.CachedConnectionValve.invoke(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;Lorg/apache/catalina/ValveContext;)V+15
J org.apache.catalina.core.StandardValveContext.invokeNext(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;)V
J org.apache.catalina.core.StandardPipeline.invoke(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;)V
v ~RuntimeStub::alignment_frame_return Runtime1 stub
j org.apache.catalina.core.StandardEngineValve.invoke(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;Lorg/apache/catalina/ValveContext;)V+59
J org.apache.catalina.core.StandardValveContext.invokeNext(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;)V
J org.apache.catalina.core.StandardPipeline.invoke(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;)V
j org.apache.catalina.core.ContainerBase.invoke(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;)V+6
j org.apache.coyote.tomcat5.CoyoteAdapter.service(Lorg/apache/coyote/Request;Lorg/apache/coyote/Response;)V+137
J org.apache.coyote.http11.Http11Processor.process(Ljava/io/InputStream;Ljava/io/OutputStream;)V
j org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Lorg/apache/tomcat/util/net/TcpConnection;[Ljava/lang/Object;)V+113
j org.apache.tomcat.util.net.TcpWorkerThread.runIt([Ljava/lang/Object;)V+159
j org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run()V+167
j java.lang.Thread.run()V+11
v ~StubRoutines::call_stub
V [jvm.dll+0x8168d]
V [jvm.dll+0xd4179]
V [jvm.dll+0x8155e]
V [jvm.dll+0x812bb]
V [jvm.dll+0x9bbe9]
V [jvm.dll+0xfe77f]
V [jvm.dll+0xfe74d]
C [MSVCRT.dll+0x2b530]
C [kernel32.dll+0x26063]
Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)
j sun.jdbc.odbc.JdbcOdbc.allocConnect(J[B)J+0
j sun.jdbc.odbc.JdbcOdbc.SQLAllocConnect(J)J+30
j sun.jdbc.odbc.JdbcOdbcDriver.allocConnection(J)J+6
j sun.jdbc.odbc.JdbcOdbcConnection.initialize(Ljava/lang/String;Ljava/util/Properties;I)V+37
j sun.jdbc.odbc.JdbcOdbcDriver.connect(Ljava/lang/String;Ljava/util/Properties;)Ljava/sql/Connection;+129
j java.sql.DriverManager.getConnection(Ljava/lang/String;Ljava/util/Properties;Ljava/lang/ClassLoader;)Ljava/sql/Connection;+165
j java.sql.DriverManager.getConnection(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)Ljava/sql/Connection;+41
j com.foxliucong.common.supportservice.database.DataBaseManager.<init>(Ljava/lang/String;)V+80
j org.apache.jsp.indexdisplay.topic_005fzfwj_jsp._jspService(Ljavax/servlet/http/HttpServletRequest;Ljavax/servlet/http/HttpServletResponse;)V+309
j org.apache.jasper.runtime.HttpJspBase.service(Ljavax/servlet/http/HttpServletRequest;Ljavax/servlet/http/HttpServletResponse;)V+3
j javax.servlet.http.HttpServlet.service(Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;)V+30
j org.apache.jasper.servlet.JspServletWrapper.service(Ljavax/servlet/http/HttpServletRequest;Ljavax/servlet/http/HttpServletResponse;Z)V+193
j org.apache.jasper.servlet.JspServlet.serviceJspFile(Ljavax/servlet/http/HttpServletRequest;Ljavax/servlet/http/HttpServletResponse;Ljava/lang/String;Ljava/lang/Throwable;Z)V+142
j org.apache.jasper.servlet.JspServlet.service(Ljavax/servlet/http/HttpServletRequest;Ljavax/servlet/http/HttpServletResponse;)V+440
j javax.servlet.http.HttpServlet.service(Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;)V+30
j org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;)V+478
j org.apache.catalina.core.ApplicationFilterChain.doFilter(Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;)V+101
j org.apache.catalina.core.StandardWrapperValve.invoke(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;Lorg/apache/catalina/ValveContext;)V+619
J org.apache.catalina.core.StandardValveContext.invokeNext(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;)V
J org.apache.catalina.core.StandardPipeline.invoke(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;)V
j org.apache.catalina.core.StandardContextValve.invokeInternal(Lorg/apache/catalina/Wrapper;Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;)V+172
j org.apache.catalina.core.StandardContextValve.invoke(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;Lorg/apache/catalina/ValveContext;)V+228
J org.apache.catalina.core.StandardValveContext.invokeNext(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;)V
v ~RuntimeStub::alignment_frame_return Runtime1 stub
j org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;Lorg/apache/catalina/ValveContext;)V+350
J org.apache.catalina.core.StandardValveContext.invokeNext(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;)V
J org.apache.catalina.core.StandardPipeline.invoke(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;)V
v ~RuntimeStub::alignment_frame_return Runtime1 stub
j org.apache.catalina.core.StandardHostValve.invoke(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;Lorg/apache/catalina/ValveContext;)V+87
J org.apache.catalina.core.StandardValveContext.invokeNext(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;)V
j org.apache.catalina.valves.ErrorReportValve.invoke(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;Lorg/apache/catalina/ValveContext;)V+3
J org.apache.catalina.core.StandardValveContext.invokeNext(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;)V
v ~RuntimeStub::alignment_frame_return Runtime1 stub
j org.jboss.web.tomcat.tc5.jca.CachedConnectionValve.invoke(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;Lorg/apache/catalina/ValveContext;)V+15
J org.apache.catalina.core.StandardValveContext.invokeNext(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;)V
J org.apache.catalina.core.StandardPipeline.invoke(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;)V
v ~RuntimeStub::alignment_frame_return Runtime1 stub
j org.apache.catalina.core.StandardEngineValve.invoke(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;Lorg/apache/catalina/ValveContext;)V+59
J org.apache.catalina.core.StandardValveContext.invokeNext(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;)V
J org.apache.catalina.core.StandardPipeline.invoke(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;)V
j org.apache.catalina.core.ContainerBase.invoke(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;)V+6
j org.apache.coyote.tomcat5.CoyoteAdapter.service(Lorg/apache/coyote/Request;Lorg/apache/coyote/Response;)V+137
J org.apache.coyote.http11.Http11Processor.process(Ljava/io/InputStream;Ljava/io/OutputStream;)V
j org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Lorg/apache/tomcat/util/net/TcpConnection;[Ljava/lang/Object;)V+113
j org.apache.tomcat.util.net.TcpWorkerThread.runIt([Ljava/lang/Object;)V+159
j org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run()V+167
j java.lang.Thread.run()V+11
v ~StubRoutines::call_stub
--------------- P R O C E S S ---------------
Java Threads: ( => current thread )
0x27aee330 JavaThread "TP-Monitor" daemon [_thread_blocked, id=3580]
0x27af09a8 JavaThread "TP-Processor4" daemon [_thread_in_native, id=3772]
0x2761dd48 JavaThread "TP-Processor3" daemon [_thread_blocked, id=3480]
0x27735ae8 JavaThread "TP-Processor2" daemon [_thread_blocked, id=3688]
0x27744b80 JavaThread "TP-Processor1" daemon [_thread_blocked, id=2024]
0x27aea7b0 JavaThread "http-0.0.0.0-80-Monitor" [_thread_blocked, id=4060]
0x27ae9a30 JavaThread "http-0.0.0.0-80-Processor25" daemon [_thread_blocked, id=264]
0x27ae8df0 JavaThread "http-0.0.0.0-80-Processor24" daemon [_thread_blocked, id=3384]
0x27ae81e0 JavaThread "http-0.0.0.0-80-Processor23" daemon [_thread_blocked, id=216]
0x275ae290 JavaThread "http-0.0.0.0-80-Processor22" daemon [_thread_blocked, id=1244]
=>0x275ad650 JavaThread "http-0.0.0.0-80-Processor21" daemon [_thread_in_native, id=4024]
0x275aca10 JavaThread "http-0.0.0.0-80-Processor20" daemon [_thread_blocked, id=3492]
0x275abdd0 JavaThread "http-0.0.0.0-80-Processor19" daemon [_thread_blocked, id=2856]
0x26fa6ce0 JavaThread "http-0.0.0.0-80-Processor18" daemon [_thread_blocked, id=1520]
0x26fa60a0 JavaThread "http-0.0.0.0-80-Processor17" daemon [_thread_blocked, id=1864]
0x26fa54c0 JavaThread "http-0.0.0.0-80-Processor16" daemon [_thread_blocked, id=3208]
0x26fa4968 JavaThread "http-0.0.0.0-80-Processor15" daemon [_thread_blocked, id=784]
0x27527ec8 JavaThread "http-0.0.0.0-80-Processor14" daemon [_thread_blocked, id=3960]
0x27527370 JavaThread "http-0.0.0.0-80-Processor13" daemon [_thread_in_native, id=308]
0x27526818 JavaThread "http-0.0.0.0-80-Processor12" daemon [_thread_in_native, id=1996]
0x27525cc0 JavaThread "http-0.0.0.0-80-Processor11" daemon [_thread_blocked, id=3880]
0x27731480 JavaThread "http-0.0.0.0-80-Processor10" daemon [_thread_blocked, id=3592]
0x27730928 JavaThread "http-0.0.0.0-80-Processor9" daemon [_thread_in_native, id=3372]
0x26f1ef58 JavaThread "http-0.0.0.0-80-Processor8" daemon [_thread_in_native, id=1236]
0x26f1e400 JavaThread "http-0.0.0.0-80-Processor7" daemon [_thread_blocked, id=3144]
0x27608978 JavaThread "http-0.0.0.0-80-Processor6" daemon [_thread_blocked, id=708]
0x274b3cd0 JavaThread "http-0.0.0.0-80-Processor5" daemon [_thread_blocked, id=2888]
0x27671470 JavaThread "http-0.0.0.0-80-Processor4" daemon [_thread_blocked, id=1224]
0x276712f0 JavaThread "http-0.0.0.0-80-Processor3" daemon [_thread_blocked, id=3056]
0x27670d70 JavaThread "http-0.0.0.0-80-Processor2" daemon [_thread_blocked, id=3060]
0x2761e978 JavaThread "http-0.0.0.0-80-Processor1" daemon [_thread_blocked, id=3840]
0x27670618 JavaThread "Thread-9" [_thread_blocked, id=448]
0x276c3b18 JavaThread "UILServerILService Accept Thread" [_thread_in_native, id=3600]
0x2764ec80 JavaThread "JBossMQ Cache Reference Softner" daemon [_thread_blocked, id=3460]
0x27638940 JavaThread "Thread-8" daemon [_thread_blocked, id=760]
0x276a3c80 JavaThread "Thread-7" [_thread_blocked, id=3404]
0x2792c870 JavaThread "Timer-2" daemon [_thread_blocked, id=552]
0x27941d60 JavaThread "ContainerBackgroundProcessor[StandardEngine[jboss.web]]" daemon [_thread_blocked, id=3680]
0x278293b8 JavaThread "HSQLDB Timer @dd5681" daemon [_thread_blocked, id=1724]
0x27525910 JavaThread "Thread-4" [_thread_in_native, id=3368]
0x2752c708 JavaThread "RMI TCP Accept-4444" daemon [_thread_in_native, id=2028]
0x274f40e8 JavaThread "Thread-3" daemon [_thread_in_native, id=3848]
0x274f7170 JavaThread "GC Daemon" daemon [_thread_blocked, id=668]
0x274e41e0 JavaThread "RMI Reaper" [_thread_blocked, id=2768]
0x274e3688 JavaThread "Timer-1" daemon [_thread_blocked, id=3760]
0x274e33c8 JavaThread "RMI TCP Accept-1098" daemon [_thread_in_native, id=3332]
0x274c4010 JavaThread "ScannerThread" daemon [_thread_blocked, id=3668]
0x271c2ba0 JavaThread "Timer-0" daemon [_thread_blocked, id=3628]
0x00036748 JavaThread "DestroyJavaVM" [_thread_blocked, id=2832]
0x009079f0 JavaThread "Low Memory Detector" daemon [_thread_blocked, id=4068]
0x00906650 JavaThread "CompilerThread0" daemon [_thread_blocked, id=3836]
0x00905940 JavaThread "Signal Dispatcher" daemon [_thread_blocked, id=3868]
0x008f6f50 JavaThread "Finalizer" daemon [_thread_blocked, id=1812]
0x008f5ab8 JavaThread "Reference Handler" daemon [_thread_blocked, id=812]
Other Threads:
0x00035040 VMThread [id=320]
0x00908d00 WatcherThread [id=3184]
VM state:not at safepoint (normal execution)
VM Mutex/Monitor currently owned by a thread: None
Heap
def new generation total 9216K, used 7249K [0x029b0000, 0x033a0000, 0x05110000)
eden space 8256K, 87% used [0x029b0000, 0x030c4558, 0x031c0000)
from space 960K, 0% used [0x032b0000, 0x032b0000, 0x033a0000)
to space 960K, 0% used [0x031c0000, 0x031c0000, 0x032b0000)
tenured generation total 121024K, used 30777K [0x05110000, 0x0c740000, 0x229b0000)
the space 121024K, 25% used [0x05110000, 0x06f1e668, 0x06f1e800, 0x0c740000)
compacting perm gen total 22528K, used 22350K [0x229b0000, 0x23fb0000, 0x269b0000)
the space 22528K, 99% used [0x229b0000, 0x23f83a90, 0x23f83c00, 0x23fb0000)
No shared spaces configured.
Dynamic libraries:
0x00400000 - 0x0040c000 D:/jboss-4.0.0RC2/jdk1.5.0/bin/java.exe
0x7c930000 - 0x7ca00000 C:/WINDOWS/system32/ntdll.dll
0x7c800000 - 0x7c92b000 C:/WINDOWS/system32/kernel32.dll
0x77f30000 - 0x77fdc000 C:/WINDOWS/system32/ADVAPI32.dll
0x77c20000 - 0x77cbf000 C:/WINDOWS/system32/RPCRT4.dll
0x77b70000 - 0x77bca000 C:/WINDOWS/system32/MSVCRT.dll
0x6d640000 - 0x6d7c5000 D:/jboss-4.0.0RC2/jdk1.5.0/jre/bin/client/jvm.dll
0x77e10000 - 0x77ea1000 C:/WINDOWS/system32/USER32.dll
0x77bd0000 - 0x77c18000 C:/WINDOWS/system32/GDI32.dll
0x769e0000 - 0x76a0a000 C:/WINDOWS/system32/WINMM.dll
0x76180000 - 0x7619d000 C:/WINDOWS/system32/IMM32.DLL
0x63090000 - 0x63099000 C:/WINDOWS/system32/LPK.DLL
0x74ae0000 - 0x74b41000 C:/WINDOWS/system32/USP10.dll
0x6d280000 - 0x6d288000 D:/jboss-4.0.0RC2/jdk1.5.0/jre/bin/hpi.dll
0x76ab0000 - 0x76abb000 C:/WINDOWS/system32/PSAPI.DLL
0x6d610000 - 0x6d61c000 D:/jboss-4.0.0RC2/jdk1.5.0/jre/bin/verify.dll
0x6d300000 - 0x6d31d000 D:/jboss-4.0.0RC2/jdk1.5.0/jre/bin/java.dll
0x6d630000 - 0x6d63f000 D:/jboss-4.0.0RC2/jdk1.5.0/jre/bin/zip.dll
0x6d4c0000 - 0x6d4d3000 D:/jboss-4.0.0RC2/jdk1.5.0/jre/bin/net.dll
0x71b60000 - 0x71b77000 C:/WINDOWS/system32/WS2_32.dll
0x71b50000 - 0x71b58000 C:/WINDOWS/system32/WS2HELP.dll
0x71a80000 - 0x71ac0000 C:/WINDOWS/System32/mswsock.dll
0x76e30000 - 0x76e5a000 C:/WINDOWS/system32/DNSAPI.dll
0x76ed0000 - 0x76ed7000 C:/WINDOWS/System32/winrnr.dll
0x76e70000 - 0x76e9e000 C:/WINDOWS/system32/WLDAP32.dll
0x76ee0000 - 0x76ee5000 C:/WINDOWS/system32/rasadhlp.dll
0x68000000 - 0x6802f000 C:/WINDOWS/system32/rsaenh.dll
0x75870000 - 0x7592f000 C:/WINDOWS/system32/USERENV.dll
0x71ba0000 - 0x71bf8000 C:/WINDOWS/system32/netapi32.dll
0x69660000 - 0x696b6000 C:/WINDOWS/system32/hnetcfg.dll
0x71a40000 - 0x71a48000 C:/WINDOWS/System32/wshtcpip.dll
0x6d4e0000 - 0x6d4e9000 D:/jboss-4.0.0RC2/jdk1.5.0/jre/bin/nio.dll
0x6d370000 - 0x6d37d000 D:/jboss-4.0.0RC2/jdk1.5.0/jre/bin/JdbcOdbc.dll
0x4b750000 - 0x4b78d000 C:/WINDOWS/system32/ODBC32.dll
0x77370000 - 0x77407000 C:/WINDOWS/WinSxS/x86_Microsoft.Windows.Common-Controls_6595b64144ccf1df_5.82.3790.1830_x-ww_1B6F474A/COMCTL32.dll
0x761a0000 - 0x761e8000 C:/WINDOWS/system32/comdlg32.dll
0x7ca10000 - 0x7d1f0000 C:/WINDOWS/system32/SHELL32.dll
0x77eb0000 - 0x77f02000 C:/WINDOWS/system32/SHLWAPI.dll
0x77cd0000 - 0x77dd3000 C:/WINDOWS/WinSxS/x86_Microsoft.Windows.Common-Controls_6595b64144ccf1df_6.0.3790.1830_x-ww_7AE38CCF/comctl32.dll
0x28be0000 - 0x28bf2000 C:/WINDOWS/system32/odbcint.dll
0x774b0000 - 0x775e4000 C:/WINDOWS/system32/ole32.dll
0x775f0000 - 0x7767c000 C:/WINDOWS/system32/OLEAUT32.dll
0x4ebc0000 - 0x4ebda000 C:/WINDOWS/system32/odbccp32.dll
0x77b60000 - 0x77b68000 C:/WINDOWS/system32/VERSION.dll
0x76eb0000 - 0x76ec3000 C:/WINDOWS/system32/Secur32.dll
0x77680000 - 0x77703000 C:/WINDOWS/system32/CLBCatQ.DLL
0x76f70000 - 0x770ca000 C:/WINDOWS/system32/COMRes.dll
0x2e0d0000 - 0x2e0db000 C:/WINDOWS/system32/VBAJET32.DLL
VM Arguments:
jvm_args: -Dprogram.name=run.bat -Xms128m -Xmx512m -Djava.endorsed.dirs=D:/jboss-4.0.0RC2/bin//../lib/endorsed
java_command: org.jboss.Main
Environment Variables:
JAVA_HOME=D:/jboss-4.0.0RC2/bin/../jdk1.5.0/
PATH=C:/Program Files/HP/NCU;C:/WINDOWS/system32;C:/WINDOWS;C:/WINDOWS/System32/Wbem
USERNAME=Administrator
OS=Windows_NT
PROCESSOR_IDENTIFIER=x86 Family 15 Model 6 Stepping 8, GenuineIntel
--------------- S Y S T E M ---------------
OS: Windows Server 2003 family Build 3790 Service Pack 1
CPU:total 4 family 15, cmov, cx8, fxsr, mmx, sse, sse2, ht
Memory: 4k page, physical 2095276k(1440348k free), swap 4037132k(3452888k free)
vm_info: Java HotSpot(TM) Client VM (1.5.0-b64) for windows-x86, built on Sep 15 2004 03:00:31 by "java_re" with MS VC++ 6.0
起初怀疑是申请数据库连接数过多导致服务器崩溃，优化了连接池，并做了个测试，用上千个线程获得连接，不会导致JVM CRASH。顶多抛得不到连接的警告，最后在机器上不停的开多个浏览器窗口进行刷新页面（首页大概15个IFRAME，每个IFRAME中使用了一个CONNECTION），每次刷新可能会需要15个CONN，大约在刷新很长一段时间后，重现出了此故障。
在百度和GOOGLE上找了一把，大致原因在SUN官网上看到一个BUG，JDBC-ODBC DRIVER的一个BUG，JDBC-ODBC一般就不应该作为商用，一般就做为测试时使用的驱动，本身JDBC-ODBC驱动对多线程的支持不好，在单线程下跑没有问题，但是在多线程下可能导致JVM CRASH。
基本找到原因，于是把JDK升级到1.6，期望在1.6中解决了这个BUG，但是事实上升级后还是有这个问题，看来1.6中依然有这个问题.
于是既然是驱动的问题,索性不用JDBC-ODBC方式驱动,想找一个ACCESS 的纯JDBC驱动，找了很久找到一个HXTT第三方驱动：access.jar
<dbconfig>
<type>access</type>
<driver>com.hxtt.sql.access.AccessDriver</driver>
<url>jdbc:Access:///../server/default/deploy/web-tomcat50.sar/ROOT.war/res/DBSystem.mdb</url>
<user></user>
<password></password>
</dbconfig>
更换驱动后，到是没有这个问题了，但是让人更郁闷的是，网上所有的这个三方驱动都是试用版，最多支持50次请求，超过50次会抛出异常导致无法使用，天哪真是越搞越麻烦了。到HXTT官网上一看，这个驱动要卖100欧元，算了，忍了为了个驱动，太不值了，尝试找了个反编译工具，把这个驱动的代码反编译出来，把请求次数限制并抛异常部分去掉，可惜的是代码经过了混淆，反编译出来有很多问题（也是，人家卖100欧元的东西能让你这么轻易搞定吗？）
浪费太多的时间，为了节省时间，决定不在一棵树上吊死，换了数据库，并采用纯JDBC驱动方式最终解决这个问题，捆扰一时的问题终于解决了。
http://blog.csdn.net/foxliucong/article/details/3750873
http://techbbs.zol.com.cn/1/8_569.html
<dbconfig>
<type>access</type>
<driver>sun.jdbc.odbc.JdbcOdbcDriver</driver>
<url>jdbc:odbc:Driver={MicroSoft Access Driver (*.mdb)};DBQ=D://tomcat5.0//server//default//deploy//web-tomcat50.sar//ROOT.war//res//DBSystem.mdb</url>
<user></user>
<password></password>
</dbconfig>
在网站做好后，当时只做了一些功能测试，没有做压力测试，在现场运行几天后开始出现运行一段时间后JVM CRASH掉了，最后不得不每次重新启动，后来更是越来越频繁，一天甚至十次以上。接到朋友电话后，朋友说每天都有客户打电话说网站挂了，让我感到心里一个沉重的石头压下来了，没想到一个简单的网站竟然出了这般严重的一级故障，到现场看了一下，LOG中的运行日志没有异常，在服务器BIN目录，找到服务器CRASH的堆栈日志：
#
# An unexpected error has been detected by HotSpot Virtual Machine:
#
# EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x7c95f350, pid=3964, tid=4024
#
# Java VM: Java HotSpot(TM) Client VM (1.5.0-b64 mixed mode)
# Problematic frame:
# C [ntdll.dll+0x2f350]
#
--------------- T H R E A D ---------------
Current thread (0x275ad650): JavaThread "http-0.0.0.0-80-Processor21" daemon [_thread_in_native, id=4024]
siginfo: ExceptionCode=0xc0000005, writing address 0x00000008
Registers:
EAX=0x00000000, EBX=0x00000000, ECX=0x00000008, EDX=0x00000004
ESP=0x2879ed14, EBP=0x2879ed20, ESI=0x00000008, EDI=0x00000000
EIP=0x7c95f350, EFLAGS=0x00010297
Top of Stack: (sp=0x2879ed14)
0x2879ed14: 00000000 00000000 00000008 2879ed3c
0x2879ed24: 4b784c16 00000004 28a22f8c 4b7527af
0x2879ed34: 28a22f8c 28a22f68 2879ed74 4b758af9
0x2879ed44: 28a22f8c 4b780000 275ad70c 23e621d0
0x2879ed54: 00000001 00000000 2879ed48 2879e940
0x2879ed64: 2879fce8 4b785705 4b758ac8 ffffffff
0x2879ed74: 2879ed8c 4b758a9d 28a22f68 2879edac
0x2879ed84: 26e80418 275ad70c 2879eda4 6d371157
Instructions: (pc=0x7c95f350)
0x7c95f340: 56 8d 72 04 57 89 75 fc b8 00 00 00 00 8b 4d fc
0x7c95f350: f0 0f b3 01 0f 92 c0 84 c0 0f 84 95 0f 00 00 64
Stack: [0x28760000,0x287a0000), sp=0x2879ed14, free space=251k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
C [ntdll.dll+0x2f350]
C [ODBC32.dll+0x34c16]
C [ODBC32.dll+0x8af9]
C [ODBC32.dll+0x8a9d]
C [JdbcOdbc.dll+0x1157]
j sun.jdbc.odbc.JdbcOdbc.allocConnect(J[B)J+0
j sun.jdbc.odbc.JdbcOdbc.SQLAllocConnect(J)J+30
j sun.jdbc.odbc.JdbcOdbcDriver.allocConnection(J)J+6
j sun.jdbc.odbc.JdbcOdbcConnection.initialize(Ljava/lang/String;Ljava/util/Properties;I)V+37
j sun.jdbc.odbc.JdbcOdbcDriver.connect(Ljava/lang/String;Ljava/util/Properties;)Ljava/sql/Connection;+129
j java.sql.DriverManager.getConnection(Ljava/lang/String;Ljava/util/Properties;Ljava/lang/ClassLoader;)Ljava/sql/Connection;+165
j java.sql.DriverManager.getConnection(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)Ljava/sql/Connection;+41
j com.foxliucong.common.supportservice.database.DataBaseManager.<init>(Ljava/lang/String;)V+80
j org.apache.jsp.indexdisplay.topic_005fzfwj_jsp._jspService(Ljavax/servlet/http/HttpServletRequest;Ljavax/servlet/http/HttpServletResponse;)V+309
j org.apache.jasper.runtime.HttpJspBase.service(Ljavax/servlet/http/HttpServletRequest;Ljavax/servlet/http/HttpServletResponse;)V+3
j javax.servlet.http.HttpServlet.service(Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;)V+30
j org.apache.jasper.servlet.JspServletWrapper.service(Ljavax/servlet/http/HttpServletRequest;Ljavax/servlet/http/HttpServletResponse;Z)V+193
j org.apache.jasper.servlet.JspServlet.serviceJspFile(Ljavax/servlet/http/HttpServletRequest;Ljavax/servlet/http/HttpServletResponse;Ljava/lang/String;Ljava/lang/Throwable;Z)V+142
j org.apache.jasper.servlet.JspServlet.service(Ljavax/servlet/http/HttpServletRequest;Ljavax/servlet/http/HttpServletResponse;)V+440
j javax.servlet.http.HttpServlet.service(Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;)V+30
j org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;)V+478
j org.apache.catalina.core.ApplicationFilterChain.doFilter(Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;)V+101
j org.apache.catalina.core.StandardWrapperValve.invoke(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;Lorg/apache/catalina/ValveContext;)V+619
J org.apache.catalina.core.StandardValveContext.invokeNext(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;)V
J org.apache.catalina.core.StandardPipeline.invoke(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;)V
j org.apache.catalina.core.StandardContextValve.invokeInternal(Lorg/apache/catalina/Wrapper;Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;)V+172
j org.apache.catalina.core.StandardContextValve.invoke(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;Lorg/apache/catalina/ValveContext;)V+228
J org.apache.catalina.core.StandardValveContext.invokeNext(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;)V
v ~RuntimeStub::alignment_frame_return Runtime1 stub
j org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;Lorg/apache/catalina/ValveContext;)V+350
J org.apache.catalina.core.StandardValveContext.invokeNext(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;)V
J org.apache.catalina.core.StandardPipeline.invoke(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;)V
v ~RuntimeStub::alignment_frame_return Runtime1 stub
j org.apache.catalina.core.StandardHostValve.invoke(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;Lorg/apache/catalina/ValveContext;)V+87
J org.apache.catalina.core.StandardValveContext.invokeNext(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;)V
j org.apache.catalina.valves.ErrorReportValve.invoke(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;Lorg/apache/catalina/ValveContext;)V+3
J org.apache.catalina.core.StandardValveContext.invokeNext(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;)V
v ~RuntimeStub::alignment_frame_return Runtime1 stub
j org.jboss.web.tomcat.tc5.jca.CachedConnectionValve.invoke(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;Lorg/apache/catalina/ValveContext;)V+15
J org.apache.catalina.core.StandardValveContext.invokeNext(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;)V
J org.apache.catalina.core.StandardPipeline.invoke(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;)V
v ~RuntimeStub::alignment_frame_return Runtime1 stub
j org.apache.catalina.core.StandardEngineValve.invoke(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;Lorg/apache/catalina/ValveContext;)V+59
J org.apache.catalina.core.StandardValveContext.invokeNext(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;)V
J org.apache.catalina.core.StandardPipeline.invoke(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;)V
j org.apache.catalina.core.ContainerBase.invoke(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;)V+6
j org.apache.coyote.tomcat5.CoyoteAdapter.service(Lorg/apache/coyote/Request;Lorg/apache/coyote/Response;)V+137
J org.apache.coyote.http11.Http11Processor.process(Ljava/io/InputStream;Ljava/io/OutputStream;)V
j org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Lorg/apache/tomcat/util/net/TcpConnection;[Ljava/lang/Object;)V+113
j org.apache.tomcat.util.net.TcpWorkerThread.runIt([Ljava/lang/Object;)V+159
j org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run()V+167
j java.lang.Thread.run()V+11
v ~StubRoutines::call_stub
V [jvm.dll+0x8168d]
V [jvm.dll+0xd4179]
V [jvm.dll+0x8155e]
V [jvm.dll+0x812bb]
V [jvm.dll+0x9bbe9]
V [jvm.dll+0xfe77f]
V [jvm.dll+0xfe74d]
C [MSVCRT.dll+0x2b530]
C [kernel32.dll+0x26063]
Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)
j sun.jdbc.odbc.JdbcOdbc.allocConnect(J[B)J+0
j sun.jdbc.odbc.JdbcOdbc.SQLAllocConnect(J)J+30
j sun.jdbc.odbc.JdbcOdbcDriver.allocConnection(J)J+6
j sun.jdbc.odbc.JdbcOdbcConnection.initialize(Ljava/lang/String;Ljava/util/Properties;I)V+37
j sun.jdbc.odbc.JdbcOdbcDriver.connect(Ljava/lang/String;Ljava/util/Properties;)Ljava/sql/Connection;+129
j java.sql.DriverManager.getConnection(Ljava/lang/String;Ljava/util/Properties;Ljava/lang/ClassLoader;)Ljava/sql/Connection;+165
j java.sql.DriverManager.getConnection(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)Ljava/sql/Connection;+41
j com.foxliucong.common.supportservice.database.DataBaseManager.<init>(Ljava/lang/String;)V+80
j org.apache.jsp.indexdisplay.topic_005fzfwj_jsp._jspService(Ljavax/servlet/http/HttpServletRequest;Ljavax/servlet/http/HttpServletResponse;)V+309
j org.apache.jasper.runtime.HttpJspBase.service(Ljavax/servlet/http/HttpServletRequest;Ljavax/servlet/http/HttpServletResponse;)V+3
j javax.servlet.http.HttpServlet.service(Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;)V+30
j org.apache.jasper.servlet.JspServletWrapper.service(Ljavax/servlet/http/HttpServletRequest;Ljavax/servlet/http/HttpServletResponse;Z)V+193
j org.apache.jasper.servlet.JspServlet.serviceJspFile(Ljavax/servlet/http/HttpServletRequest;Ljavax/servlet/http/HttpServletResponse;Ljava/lang/String;Ljava/lang/Throwable;Z)V+142
j org.apache.jasper.servlet.JspServlet.service(Ljavax/servlet/http/HttpServletRequest;Ljavax/servlet/http/HttpServletResponse;)V+440
j javax.servlet.http.HttpServlet.service(Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;)V+30
j org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;)V+478
j org.apache.catalina.core.ApplicationFilterChain.doFilter(Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;)V+101
j org.apache.catalina.core.StandardWrapperValve.invoke(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;Lorg/apache/catalina/ValveContext;)V+619
J org.apache.catalina.core.StandardValveContext.invokeNext(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;)V
J org.apache.catalina.core.StandardPipeline.invoke(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;)V
j org.apache.catalina.core.StandardContextValve.invokeInternal(Lorg/apache/catalina/Wrapper;Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;)V+172
j org.apache.catalina.core.StandardContextValve.invoke(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;Lorg/apache/catalina/ValveContext;)V+228
J org.apache.catalina.core.StandardValveContext.invokeNext(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;)V
v ~RuntimeStub::alignment_frame_return Runtime1 stub
j org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;Lorg/apache/catalina/ValveContext;)V+350
J org.apache.catalina.core.StandardValveContext.invokeNext(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;)V
J org.apache.catalina.core.StandardPipeline.invoke(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;)V
v ~RuntimeStub::alignment_frame_return Runtime1 stub
j org.apache.catalina.core.StandardHostValve.invoke(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;Lorg/apache/catalina/ValveContext;)V+87
J org.apache.catalina.core.StandardValveContext.invokeNext(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;)V
j org.apache.catalina.valves.ErrorReportValve.invoke(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;Lorg/apache/catalina/ValveContext;)V+3
J org.apache.catalina.core.StandardValveContext.invokeNext(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;)V
v ~RuntimeStub::alignment_frame_return Runtime1 stub
j org.jboss.web.tomcat.tc5.jca.CachedConnectionValve.invoke(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;Lorg/apache/catalina/ValveContext;)V+15
J org.apache.catalina.core.StandardValveContext.invokeNext(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;)V
J org.apache.catalina.core.StandardPipeline.invoke(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;)V
v ~RuntimeStub::alignment_frame_return Runtime1 stub
j org.apache.catalina.core.StandardEngineValve.invoke(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;Lorg/apache/catalina/ValveContext;)V+59
J org.apache.catalina.core.StandardValveContext.invokeNext(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;)V
J org.apache.catalina.core.StandardPipeline.invoke(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;)V
j org.apache.catalina.core.ContainerBase.invoke(Lorg/apache/catalina/Request;Lorg/apache/catalina/Response;)V+6
j org.apache.coyote.tomcat5.CoyoteAdapter.service(Lorg/apache/coyote/Request;Lorg/apache/coyote/Response;)V+137
J org.apache.coyote.http11.Http11Processor.process(Ljava/io/InputStream;Ljava/io/OutputStream;)V
j org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Lorg/apache/tomcat/util/net/TcpConnection;[Ljava/lang/Object;)V+113
j org.apache.tomcat.util.net.TcpWorkerThread.runIt([Ljava/lang/Object;)V+159
j org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run()V+167
j java.lang.Thread.run()V+11
v ~StubRoutines::call_stub
--------------- P R O C E S S ---------------
Java Threads: ( => current thread )
0x27aee330 JavaThread "TP-Monitor" daemon [_thread_blocked, id=3580]
0x27af09a8 JavaThread "TP-Processor4" daemon [_thread_in_native, id=3772]
0x2761dd48 JavaThread "TP-Processor3" daemon [_thread_blocked, id=3480]
0x27735ae8 JavaThread "TP-Processor2" daemon [_thread_blocked, id=3688]
0x27744b80 JavaThread "TP-Processor1" daemon [_thread_blocked, id=2024]
0x27aea7b0 JavaThread "http-0.0.0.0-80-Monitor" [_thread_blocked, id=4060]
0x27ae9a30 JavaThread "http-0.0.0.0-80-Processor25" daemon [_thread_blocked, id=264]
0x27ae8df0 JavaThread "http-0.0.0.0-80-Processor24" daemon [_thread_blocked, id=3384]
0x27ae81e0 JavaThread "http-0.0.0.0-80-Processor23" daemon [_thread_blocked, id=216]
0x275ae290 JavaThread "http-0.0.0.0-80-Processor22" daemon [_thread_blocked, id=1244]
=>0x275ad650 JavaThread "http-0.0.0.0-80-Processor21" daemon [_thread_in_native, id=4024]
0x275aca10 JavaThread "http-0.0.0.0-80-Processor20" daemon [_thread_blocked, id=3492]
0x275abdd0 JavaThread "http-0.0.0.0-80-Processor19" daemon [_thread_blocked, id=2856]
0x26fa6ce0 JavaThread "http-0.0.0.0-80-Processor18" daemon [_thread_blocked, id=1520]
0x26fa60a0 JavaThread "http-0.0.0.0-80-Processor17" daemon [_thread_blocked, id=1864]
0x26fa54c0 JavaThread "http-0.0.0.0-80-Processor16" daemon [_thread_blocked, id=3208]
0x26fa4968 JavaThread "http-0.0.0.0-80-Processor15" daemon [_thread_blocked, id=784]
0x27527ec8 JavaThread "http-0.0.0.0-80-Processor14" daemon [_thread_blocked, id=3960]
0x27527370 JavaThread "http-0.0.0.0-80-Processor13" daemon [_thread_in_native, id=308]
0x27526818 JavaThread "http-0.0.0.0-80-Processor12" daemon [_thread_in_native, id=1996]
0x27525cc0 JavaThread "http-0.0.0.0-80-Processor11" daemon [_thread_blocked, id=3880]
0x27731480 JavaThread "http-0.0.0.0-80-Processor10" daemon [_thread_blocked, id=3592]
0x27730928 JavaThread "http-0.0.0.0-80-Processor9" daemon [_thread_in_native, id=3372]
0x26f1ef58 JavaThread "http-0.0.0.0-80-Processor8" daemon [_thread_in_native, id=1236]
0x26f1e400 JavaThread "http-0.0.0.0-80-Processor7" daemon [_thread_blocked, id=3144]
0x27608978 JavaThread "http-0.0.0.0-80-Processor6" daemon [_thread_blocked, id=708]
0x274b3cd0 JavaThread "http-0.0.0.0-80-Processor5" daemon [_thread_blocked, id=2888]
0x27671470 JavaThread "http-0.0.0.0-80-Processor4" daemon [_thread_blocked, id=1224]
0x276712f0 JavaThread "http-0.0.0.0-80-Processor3" daemon [_thread_blocked, id=3056]
0x27670d70 JavaThread "http-0.0.0.0-80-Processor2" daemon [_thread_blocked, id=3060]
0x2761e978 JavaThread "http-0.0.0.0-80-Processor1" daemon [_thread_blocked, id=3840]
0x27670618 JavaThread "Thread-9" [_thread_blocked, id=448]
0x276c3b18 JavaThread "UILServerILService Accept Thread" [_thread_in_native, id=3600]
0x2764ec80 JavaThread "JBossMQ Cache Reference Softner" daemon [_thread_blocked, id=3460]
0x27638940 JavaThread "Thread-8" daemon [_thread_blocked, id=760]
0x276a3c80 JavaThread "Thread-7" [_thread_blocked, id=3404]
0x2792c870 JavaThread "Timer-2" daemon [_thread_blocked, id=552]
0x27941d60 JavaThread "ContainerBackgroundProcessor[StandardEngine[jboss.web]]" daemon [_thread_blocked, id=3680]
0x278293b8 JavaThread "HSQLDB Timer @dd5681" daemon [_thread_blocked, id=1724]
0x27525910 JavaThread "Thread-4" [_thread_in_native, id=3368]
0x2752c708 JavaThread "RMI TCP Accept-4444" daemon [_thread_in_native, id=2028]
0x274f40e8 JavaThread "Thread-3" daemon [_thread_in_native, id=3848]
0x274f7170 JavaThread "GC Daemon" daemon [_thread_blocked, id=668]
0x274e41e0 JavaThread "RMI Reaper" [_thread_blocked, id=2768]
0x274e3688 JavaThread "Timer-1" daemon [_thread_blocked, id=3760]
0x274e33c8 JavaThread "RMI TCP Accept-1098" daemon [_thread_in_native, id=3332]
0x274c4010 JavaThread "ScannerThread" daemon [_thread_blocked, id=3668]
0x271c2ba0 JavaThread "Timer-0" daemon [_thread_blocked, id=3628]
0x00036748 JavaThread "DestroyJavaVM" [_thread_blocked, id=2832]
0x009079f0 JavaThread "Low Memory Detector" daemon [_thread_blocked, id=4068]
0x00906650 JavaThread "CompilerThread0" daemon [_thread_blocked, id=3836]
0x00905940 JavaThread "Signal Dispatcher" daemon [_thread_blocked, id=3868]
0x008f6f50 JavaThread "Finalizer" daemon [_thread_blocked, id=1812]
0x008f5ab8 JavaThread "Reference Handler" daemon [_thread_blocked, id=812]
Other Threads:
0x00035040 VMThread [id=320]
0x00908d00 WatcherThread [id=3184]
VM state:not at safepoint (normal execution)
VM Mutex/Monitor currently owned by a thread: None
Heap
def new generation total 9216K, used 7249K [0x029b0000, 0x033a0000, 0x05110000)
eden space 8256K, 87% used [0x029b0000, 0x030c4558, 0x031c0000)
from space 960K, 0% used [0x032b0000, 0x032b0000, 0x033a0000)
to space 960K, 0% used [0x031c0000, 0x031c0000, 0x032b0000)
tenured generation total 121024K, used 30777K [0x05110000, 0x0c740000, 0x229b0000)
the space 121024K, 25% used [0x05110000, 0x06f1e668, 0x06f1e800, 0x0c740000)
compacting perm gen total 22528K, used 22350K [0x229b0000, 0x23fb0000, 0x269b0000)
the space 22528K, 99% used [0x229b0000, 0x23f83a90, 0x23f83c00, 0x23fb0000)
No shared spaces configured.
Dynamic libraries:
0x00400000 - 0x0040c000 D:/jboss-4.0.0RC2/jdk1.5.0/bin/java.exe
0x7c930000 - 0x7ca00000 C:/WINDOWS/system32/ntdll.dll
0x7c800000 - 0x7c92b000 C:/WINDOWS/system32/kernel32.dll
0x77f30000 - 0x77fdc000 C:/WINDOWS/system32/ADVAPI32.dll
0x77c20000 - 0x77cbf000 C:/WINDOWS/system32/RPCRT4.dll
0x77b70000 - 0x77bca000 C:/WINDOWS/system32/MSVCRT.dll
0x6d640000 - 0x6d7c5000 D:/jboss-4.0.0RC2/jdk1.5.0/jre/bin/client/jvm.dll
0x77e10000 - 0x77ea1000 C:/WINDOWS/system32/USER32.dll
0x77bd0000 - 0x77c18000 C:/WINDOWS/system32/GDI32.dll
0x769e0000 - 0x76a0a000 C:/WINDOWS/system32/WINMM.dll
0x76180000 - 0x7619d000 C:/WINDOWS/system32/IMM32.DLL
0x63090000 - 0x63099000 C:/WINDOWS/system32/LPK.DLL
0x74ae0000 - 0x74b41000 C:/WINDOWS/system32/USP10.dll
0x6d280000 - 0x6d288000 D:/jboss-4.0.0RC2/jdk1.5.0/jre/bin/hpi.dll
0x76ab0000 - 0x76abb000 C:/WINDOWS/system32/PSAPI.DLL
0x6d610000 - 0x6d61c000 D:/jboss-4.0.0RC2/jdk1.5.0/jre/bin/verify.dll
0x6d300000 - 0x6d31d000 D:/jboss-4.0.0RC2/jdk1.5.0/jre/bin/java.dll
0x6d630000 - 0x6d63f000 D:/jboss-4.0.0RC2/jdk1.5.0/jre/bin/zip.dll
0x6d4c0000 - 0x6d4d3000 D:/jboss-4.0.0RC2/jdk1.5.0/jre/bin/net.dll
0x71b60000 - 0x71b77000 C:/WINDOWS/system32/WS2_32.dll
0x71b50000 - 0x71b58000 C:/WINDOWS/system32/WS2HELP.dll
0x71a80000 - 0x71ac0000 C:/WINDOWS/System32/mswsock.dll
0x76e30000 - 0x76e5a000 C:/WINDOWS/system32/DNSAPI.dll
0x76ed0000 - 0x76ed7000 C:/WINDOWS/System32/winrnr.dll
0x76e70000 - 0x76e9e000 C:/WINDOWS/system32/WLDAP32.dll
0x76ee0000 - 0x76ee5000 C:/WINDOWS/system32/rasadhlp.dll
0x68000000 - 0x6802f000 C:/WINDOWS/system32/rsaenh.dll
0x75870000 - 0x7592f000 C:/WINDOWS/system32/USERENV.dll
0x71ba0000 - 0x71bf8000 C:/WINDOWS/system32/netapi32.dll
0x69660000 - 0x696b6000 C:/WINDOWS/system32/hnetcfg.dll
0x71a40000 - 0x71a48000 C:/WINDOWS/System32/wshtcpip.dll
0x6d4e0000 - 0x6d4e9000 D:/jboss-4.0.0RC2/jdk1.5.0/jre/bin/nio.dll
0x6d370000 - 0x6d37d000 D:/jboss-4.0.0RC2/jdk1.5.0/jre/bin/JdbcOdbc.dll
0x4b750000 - 0x4b78d000 C:/WINDOWS/system32/ODBC32.dll
0x77370000 - 0x77407000 C:/WINDOWS/WinSxS/x86_Microsoft.Windows.Common-Controls_6595b64144ccf1df_5.82.3790.1830_x-ww_1B6F474A/COMCTL32.dll
0x761a0000 - 0x761e8000 C:/WINDOWS/system32/comdlg32.dll
0x7ca10000 - 0x7d1f0000 C:/WINDOWS/system32/SHELL32.dll
0x77eb0000 - 0x77f02000 C:/WINDOWS/system32/SHLWAPI.dll
0x77cd0000 - 0x77dd3000 C:/WINDOWS/WinSxS/x86_Microsoft.Windows.Common-Controls_6595b64144ccf1df_6.0.3790.1830_x-ww_7AE38CCF/comctl32.dll
0x28be0000 - 0x28bf2000 C:/WINDOWS/system32/odbcint.dll
0x774b0000 - 0x775e4000 C:/WINDOWS/system32/ole32.dll
0x775f0000 - 0x7767c000 C:/WINDOWS/system32/OLEAUT32.dll
0x4ebc0000 - 0x4ebda000 C:/WINDOWS/system32/odbccp32.dll
0x77b60000 - 0x77b68000 C:/WINDOWS/system32/VERSION.dll
0x76eb0000 - 0x76ec3000 C:/WINDOWS/system32/Secur32.dll
0x77680000 - 0x77703000 C:/WINDOWS/system32/CLBCatQ.DLL
0x76f70000 - 0x770ca000 C:/WINDOWS/system32/COMRes.dll
0x2e0d0000 - 0x2e0db000 C:/WINDOWS/system32/VBAJET32.DLL
VM Arguments:
jvm_args: -Dprogram.name=run.bat -Xms128m -Xmx512m -Djava.endorsed.dirs=D:/jboss-4.0.0RC2/bin//../lib/endorsed
java_command: org.jboss.Main
Environment Variables:
JAVA_HOME=D:/jboss-4.0.0RC2/bin/../jdk1.5.0/
PATH=C:/Program Files/HP/NCU;C:/WINDOWS/system32;C:/WINDOWS;C:/WINDOWS/System32/Wbem
USERNAME=Administrator
OS=Windows_NT
PROCESSOR_IDENTIFIER=x86 Family 15 Model 6 Stepping 8, GenuineIntel
--------------- S Y S T E M ---------------
OS: Windows Server 2003 family Build 3790 Service Pack 1
CPU:total 4 family 15, cmov, cx8, fxsr, mmx, sse, sse2, ht
Memory: 4k page, physical 2095276k(1440348k free), swap 4037132k(3452888k free)
vm_info: Java HotSpot(TM) Client VM (1.5.0-b64) for windows-x86, built on Sep 15 2004 03:00:31 by "java_re" with MS VC++ 6.0
起初怀疑是申请数据库连接数过多导致服务器崩溃，优化了连接池，并做了个测试，用上千个线程获得连接，不会导致JVM CRASH。顶多抛得不到连接的警告，最后在机器上不停的开多个浏览器窗口进行刷新页面（首页大概15个IFRAME，每个IFRAME中使用了一个CONNECTION），每次刷新可能会需要15个CONN，大约在刷新很长一段时间后，重现出了此故障。
在百度和GOOGLE上找了一把，大致原因在SUN官网上看到一个BUG，JDBC-ODBC DRIVER的一个BUG，JDBC-ODBC一般就不应该作为商用，一般就做为测试时使用的驱动，本身JDBC-ODBC驱动对多线程的支持不好，在单线程下跑没有问题，但是在多线程下可能导致JVM CRASH。
基本找到原因，于是把JDK升级到1.6，期望在1.6中解决了这个BUG，但是事实上升级后还是有这个问题，看来1.6中依然有这个问题.
于是既然是驱动的问题,索性不用JDBC-ODBC方式驱动,想找一个ACCESS 的纯JDBC驱动，找了很久找到一个HXTT第三方驱动：access.jar
<dbconfig>
<type>access</type>
<driver>com.hxtt.sql.access.AccessDriver</driver>
<url>jdbc:Access:///../server/default/deploy/web-tomcat50.sar/ROOT.war/res/DBSystem.mdb</url>
<user></user>
<password></password>
</dbconfig>
更换驱动后，到是没有这个问题了，但是让人更郁闷的是，网上所有的这个三方驱动都是试用版，最多支持50次请求，超过50次会抛出异常导致无法使用，天哪真是越搞越麻烦了。到HXTT官网上一看，这个驱动要卖100欧元，算了，忍了为了个驱动，太不值了，尝试找了个反编译工具，把这个驱动的代码反编译出来，把请求次数限制并抛异常部分去掉，可惜的是代码经过了混淆，反编译出来有很多问题（也是，人家卖100欧元的东西能让你这么轻易搞定吗？）
浪费太多的时间，为了节省时间，决定不在一棵树上吊死，换了数据库，并采用纯JDBC驱动方式最终解决这个问题，捆扰一时的问题终于解决了。
http://blog.csdn.net/foxliucong/article/details/3750873
http://techbbs.zol.com.cn/1/8_569.html
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