问题描述
我的Java进程卡住了,并在VM上占用了大量cpu。我正在尝试通过获得一个堆转储来解决问题的根源。此过程正在docker container
中运行。我进入容器并以root用户身份运行jmap -F -dump:format=b,file=/tmp/heapdump.bin 6
。但是我仍然得到java.lang.reflect.InvocationTargetException
。
我使用jmap -F
来克服此异常-com.sun.tools.attach.AttachNotSupportedException: Unable to open socket file: target process not responding or HotSpot VM not loaded
我引用了该帖子以对我的查询进行修改-Running jmap getting Unable to open socket file,
我已经尝试了jmap
和jcmd
查询,但是得到了相同的结果。
有人可以在这里帮忙吗?
# jmap -F -dump:format=b,file=/tmp/heapdump.bin 6
Attaching to process ID 6,please wait...
Debugger attached successfully.
Server compiler detected.
JVM version is 25.111-b14
Dumping heap to /tmp/heapdump.bin ...
Exception in thread "main" java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at sun.tools.jmap.JMap.runTool(JMap.java:201)
at sun.tools.jmap.JMap.main(JMap.java:130)
Caused by: java.lang.InternalError: Metadata does not appear to be polymorphic
at sun.jvm.hotspot.types.basic.BasicTypeDataBase.findDynamicTypeForAddress(BasicTypeDataBase.java:278)
at sun.jvm.hotspot.runtime.VirtualBaseConstructor.instantiateWrapperFor(VirtualBaseConstructor.java:102)
at sun.jvm.hotspot.oops.Metadata.instantiateWrapperFor(Metadata.java:68)
at sun.jvm.hotspot.memory.DictionaryEntry.klass(DictionaryEntry.java:71)
at sun.jvm.hotspot.memory.Dictionary.classesDo(Dictionary.java:66)
at sun.jvm.hotspot.memory.SystemDictionary.classesDo(SystemDictionary.java:190)
at sun.jvm.hotspot.memory.SystemDictionary.allClassesDo(SystemDictionary.java:183)
at sun.jvm.hotspot.utilities.HeaPHProfBinWriter.writeClasses(HeaPHProfBinWriter.java:954)
at sun.jvm.hotspot.utilities.HeaPHProfBinWriter.write(HeaPHProfBinWriter.java:427)
at sun.jvm.hotspot.tools.HeapDumper.run(HeapDumper.java:62)
at sun.jvm.hotspot.tools.Tool.startInternal(Tool.java:260)
at sun.jvm.hotspot.tools.Tool.start(Tool.java:223)
at sun.jvm.hotspot.tools.Tool.execute(Tool.java:118)
at sun.jvm.hotspot.tools.HeapDumper.main(HeapDumper.java:83)
解决方法
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