Hi,
I am using Hadoop 0.20
How can I get pass the exception below ?
[had...@vh20 hadoop]$ jmap -heap 3837
Attaching to process ID 3837, please wait...
sun.jvm.hotspot.debugger.NoSuchSymbolException: Could not find symbol
"gHotSpotVMTypeEntryTypeNameOffset" in any of the known library names
(libjvm.so, libjvm_g.so, gamma_g)
at
sun.jvm.hotspot.HotSpotTypeDataBase.lookupInProcess(HotSpotTypeDataBase.
java:388)
at
sun.jvm.hotspot.HotSpotTypeDataBase.getLongValueFromProcess(HotSpotTypeD
ataBase.java:369)
at
sun.jvm.hotspot.HotSpotTypeDataBase.readVMTypes(HotSpotTypeDataBase.java
:102)
at
sun.jvm.hotspot.HotSpotTypeDataBase.<init>(HotSpotTypeDataBase.java:85)
at
sun.jvm.hotspot.bugspot.BugSpotAgent.setupVM(BugSpotAgent.java:568)
at
sun.jvm.hotspot.bugspot.BugSpotAgent.go(BugSpotAgent.java:494)
at
sun.jvm.hotspot.bugspot.BugSpotAgent.attach(BugSpotAgent.java:332)
at sun.jvm.hotspot.tools.Tool.start(Tool.java:163)
at sun.jvm.hotspot.tools.HeapSummary.main(HeapSummary.java:39)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.jav
a:57)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessor
Impl.java:43)
at java.lang.reflect.Method.invoke(Method.java:616)
at sun.tools.jmap.JMap.runTool(JMap.java:196)
at sun.tools.jmap.JMap.main(JMap.java:128)
Debugger attached successfully.
sun.jvm.hotspot.tools.HeapSummary requires a java VM process/core!
Thanks
