jstack

jstack.java

[root@ctclogstash02 ~]# printf "0x%x\n" 1961
0x7a9
[root@ctclogstash02 ~]# su -s /bin/bash -c 'jstack 1082' logstash > /tmp/jstack.out
1082: Unable to open socket file: target process not responding or HotSpot VM not loaded
The -F option can be used when the target process is not responding
[root@ctclogstash02 ~]# su -s /bin/bash -c 'jstack -F 1082' logstash > /tmp/jstack.out
Attaching to process ID 1082, please wait...
Debugger attached successfully.
Server compiler detected.
JVM version is 24.65-b04
java.lang.RuntimeException: Unable to deduce type of thread from address 0x00007faf9801c800 (expected type JavaThread, CompilerThread, ServiceThread, JvmtiAgentThread, or SurrogateLockerThread)
	at sun.jvm.hotspot.runtime.Threads.createJavaThreadWrapper(Threads.java:162)
	at sun.jvm.hotspot.runtime.Threads.first(Threads.java:150)
	at sun.jvm.hotspot.runtime.DeadlockDetector.createThreadTable(DeadlockDetector.java:149)
	at sun.jvm.hotspot.runtime.DeadlockDetector.print(DeadlockDetector.java:56)
	at sun.jvm.hotspot.runtime.DeadlockDetector.print(DeadlockDetector.java:39)
	at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:52)
	at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:45)
	at sun.jvm.hotspot.tools.JStack.run(JStack.java:60)
	at sun.jvm.hotspot.tools.Tool.start(Tool.java:221)
	at sun.jvm.hotspot.tools.JStack.main(JStack.java:86)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at sun.tools.jstack.JStack.runJStackTool(JStack.java:136)
	at sun.tools.jstack.JStack.main(JStack.java:102)
Caused by: sun.jvm.hotspot.types.WrongTypeException: No suitable match for type of address 0x00007faf9801c800
	at sun.jvm.hotspot.runtime.InstanceConstructor.newWrongTypeException(InstanceConstructor.java:62)
	at sun.jvm.hotspot.runtime.VirtualConstructor.instantiateWrapperFor(VirtualConstructor.java:80)
	at sun.jvm.hotspot.runtime.Threads.createJavaThreadWrapper(Threads.java:158)
	... 15 more
Exception in thread "main" java.lang.reflect.InvocationTargetException
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at sun.tools.jstack.JStack.runJStackTool(JStack.java:136)
	at sun.tools.jstack.JStack.main(JStack.java:102)
Caused by: java.lang.RuntimeException: Unable to deduce type of thread from address 0x00007faf9801c800 (expected type JavaThread, CompilerThread, ServiceThread, JvmtiAgentThread, or SurrogateLockerThread)
	at sun.jvm.hotspot.runtime.Threads.createJavaThreadWrapper(Threads.java:162)
	at sun.jvm.hotspot.runtime.Threads.first(Threads.java:150)
	at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:65)
	at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:45)
	at sun.jvm.hotspot.tools.JStack.run(JStack.java:60)
	at sun.jvm.hotspot.tools.Tool.start(Tool.java:221)
	at sun.jvm.hotspot.tools.JStack.main(JStack.java:86)
	... 6 more
Caused by: sun.jvm.hotspot.types.WrongTypeException: No suitable match for type of address 0x00007faf9801c800
	at sun.jvm.hotspot.runtime.InstanceConstructor.newWrongTypeException(InstanceConstructor.java:62)
	at sun.jvm.hotspot.runtime.VirtualConstructor.instantiateWrapperFor(VirtualConstructor.java:80)
	at sun.jvm.hotspot.runtime.Threads.createJavaThreadWrapper(Threads.java:158)
	... 12 more
[root@ctclogstash02 ~]# more /tmp/jstack.out
Deadlock Detection:

Can't print deadlocks:Unable to deduce type of thread from address 0x00007faf9801
c800 (expected type JavaThread, CompilerThread, ServiceThread, JvmtiAgentThread,
or SurrogateLockerThread)