我们有一个在 Java 6 update 45 中运行的 JBoss 应用程序服务器。我们遇到了很可能是我们自己介绍的 OutOfMemoryErrors。我们想分析这些并想创建一个堆转储。这会失败,但以下例外。
谷歌搜索和搜索stackoverflow对我没有多大帮助,有人知道如何从这台机器上获取堆转储吗?
谢谢!
马丁
例外是:
C:\>"d:\Program Files\Java\bin\"jmap -F "-dump:format=b,file=D:\heapdumps\20130620_085902_heap.dump" 1832
Attaching to process ID 1832, please wait...
Debugger attached successfully.
Server compiler detected.
JVM version is 20.45-b01
Dumping heap to D:\heapdumps\20130620_085902_heap.dump ...
Exception in thread "main" java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at sun.tools.jmap.JMap.runTool(JMap.java:179)
at sun.tools.jmap.JMap.main(JMap.java:110)
Caused by: sun.jvm.hotspot.debugger.DebuggerException: Windbg Error: ReadVirtual failed!
at sun.jvm.hotspot.debugger.windbg.WindbgDebuggerLocal.readBytesFromProcess0(Native Method)
at sun.jvm.hotspot.debugger.windbg.WindbgDebuggerLocal.readBytesFromProcess(WindbgDebuggerLocal.java:485)
at sun.jvm.hotspot.debugger.DebuggerBase$Fetcher.fetchPage(DebuggerBase.java:76)
at sun.jvm.hotspot.debugger.PageCache.getPage(PageCache.java:178)
at sun.jvm.hotspot.debugger.PageCache.getInt(PageCache.java:96)
at sun.jvm.hotspot.debugger.DebuggerBase.readCInteger(DebuggerBase.java:355)
at sun.jvm.hotspot.debugger.DebuggerBase.readCompOopAddressValue(DebuggerBase.java:459)
at sun.jvm.hotspot.debugger.windbg.WindbgDebuggerLocal.readCompOopHandle(WindbgDebuggerLocal.java:332)
at sun.jvm.hotspot.debugger.windbg.WindbgAddress.getCompOopHandleAt(WindbgAddress.java:122)
at sun.jvm.hotspot.oops.Oop.getKlassForOopHandle(Oop.java:235)
at sun.jvm.hotspot.oops.ObjectHeap.newOop(ObjectHeap.java:378)
at sun.jvm.hotspot.oops.ObjectHeap.iterateLiveRegions(ObjectHeap.java:464)
at sun.jvm.hotspot.oops.ObjectHeap.iterate(ObjectHeap.java:249)
at sun.jvm.hotspot.utilities.AbstractHeapGraphWriter.write(AbstractHeapGraphWriter.java:51)
at sun.jvm.hotspot.utilities.HeapHprofBinWriter.write(HeapHprofBinWriter.java:416)
at sun.jvm.hotspot.tools.HeapDumper.run(HeapDumper.java:56)
at sun.jvm.hotspot.tools.Tool.start(Tool.java:221)
at sun.jvm.hotspot.tools.HeapDumper.main(HeapDumper.java:77)
... 6 more