Thanks.

Here are the results of jstack:

$ ps aux | grep master
root 1 0.0 0.0 18140 3040 ? Ss 02:37 0:01 bash /opt/hbase/bin/run-master.sh hdfs 130 0.0 0.0 9644 2716 ? S 02:40 0:00 bash /opt/hbase/bin/hbase-daemon.sh --config /opt/hbase/conf foreground_start master hdfs 144 0.0 0.0 9640 2720 ? S 02:40 0:00 bash /opt/hbase/bin/../bin/hbase --config /opt/hbase/conf master start hdfs 155 0.0 0.0 9640 1900 ? S 02:40 0:00 bash /opt/hbase/bin/../bin/hbase --config /opt/hbase/conf master start root 5195 0.0 0.0 8868 776 ? S+ 04:02 0:00 grep --color=auto master

$ jps
5321 Jps
$ jstack 130
130: 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

$ jstack 144
144: 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

$ jstack 155
155: 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

$ jstack -F 130
Attaching to process ID 130, please wait...
Error attaching to process: sun.jvm.hotspot.debugger.DebuggerException: cannot open binary file sun.jvm.hotspot.debugger.DebuggerException: sun.jvm.hotspot.debugger.DebuggerException: cannot open binary file at sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerThread.execute(LinuxDebuggerLocal.java:163) at sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.attach(LinuxDebuggerLocal.java:278)
    at sun.jvm.hotspot.HotSpotAgent.attachDebugger(HotSpotAgent.java:671)
at sun.jvm.hotspot.HotSpotAgent.setupDebuggerLinux(HotSpotAgent.java:611)
    at sun.jvm.hotspot.HotSpotAgent.setupDebugger(HotSpotAgent.java:337)
    at sun.jvm.hotspot.HotSpotAgent.go(HotSpotAgent.java:304)
    at sun.jvm.hotspot.HotSpotAgent.attach(HotSpotAgent.java:140)
    at sun.jvm.hotspot.tools.Tool.start(Tool.java:185)
    at sun.jvm.hotspot.tools.Tool.execute(Tool.java:118)
    at sun.jvm.hotspot.tools.JStack.main(JStack.java:92)
    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:497)
    at sun.tools.jstack.JStack.runJStackTool(JStack.java:140)
    at sun.tools.jstack.JStack.main(JStack.java:106)
Caused by: sun.jvm.hotspot.debugger.DebuggerException: cannot open binary file at sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.attach0(Native Method) at sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.access$100(LinuxDebuggerLocal.java:62) at sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$1AttachTask.doit(LinuxDebuggerLocal.java:269) at sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerThread.run(LinuxDebuggerLocal.java:138)

$ jstack -F 144
Attaching to process ID 144, please wait...
Error attaching to process: sun.jvm.hotspot.debugger.DebuggerException: cannot open binary file sun.jvm.hotspot.debugger.DebuggerException: sun.jvm.hotspot.debugger.DebuggerException: cannot open binary file at sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerThread.execute(LinuxDebuggerLocal.java:163) at sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.attach(LinuxDebuggerLocal.java:278)
    at sun.jvm.hotspot.HotSpotAgent.attachDebugger(HotSpotAgent.java:671)
at sun.jvm.hotspot.HotSpotAgent.setupDebuggerLinux(HotSpotAgent.java:611)
    at sun.jvm.hotspot.HotSpotAgent.setupDebugger(HotSpotAgent.java:337)
    at sun.jvm.hotspot.HotSpotAgent.go(HotSpotAgent.java:304)
    at sun.jvm.hotspot.HotSpotAgent.attach(HotSpotAgent.java:140)
    at sun.jvm.hotspot.tools.Tool.start(Tool.java:185)
    at sun.jvm.hotspot.tools.Tool.execute(Tool.java:118)
    at sun.jvm.hotspot.tools.JStack.main(JStack.java:92)
    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:497)
    at sun.tools.jstack.JStack.runJStackTool(JStack.java:140)
    at sun.tools.jstack.JStack.main(JStack.java:106)
Caused by: sun.jvm.hotspot.debugger.DebuggerException: cannot open binary file at sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.attach0(Native Method) at sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.access$100(LinuxDebuggerLocal.java:62) at sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$1AttachTask.doit(LinuxDebuggerLocal.java:269) at sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerThread.run(LinuxDebuggerLocal.java:138)

$ jstack -F 155
Attaching to process ID 155, please wait...
Error attaching to process: sun.jvm.hotspot.debugger.DebuggerException: cannot open binary file sun.jvm.hotspot.debugger.DebuggerException: sun.jvm.hotspot.debugger.DebuggerException: cannot open binary file at sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerThread.execute(LinuxDebuggerLocal.java:163) at sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.attach(LinuxDebuggerLocal.java:278)
    at sun.jvm.hotspot.HotSpotAgent.attachDebugger(HotSpotAgent.java:671)
at sun.jvm.hotspot.HotSpotAgent.setupDebuggerLinux(HotSpotAgent.java:611)
    at sun.jvm.hotspot.HotSpotAgent.setupDebugger(HotSpotAgent.java:337)
    at sun.jvm.hotspot.HotSpotAgent.go(HotSpotAgent.java:304)
    at sun.jvm.hotspot.HotSpotAgent.attach(HotSpotAgent.java:140)
    at sun.jvm.hotspot.tools.Tool.start(Tool.java:185)
    at sun.jvm.hotspot.tools.Tool.execute(Tool.java:118)
    at sun.jvm.hotspot.tools.JStack.main(JStack.java:92)
    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:497)
    at sun.tools.jstack.JStack.runJStackTool(JStack.java:140)
    at sun.tools.jstack.JStack.main(JStack.java:106)
Caused by: sun.jvm.hotspot.debugger.DebuggerException: cannot open binary file at sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.attach0(Native Method) at sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.access$100(LinuxDebuggerLocal.java:62) at sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$1AttachTask.doit(LinuxDebuggerLocal.java:269) at sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerThread.run(LinuxDebuggerLocal.java:138)



On 17/12/2015 3:01 PM, Ted Yu wrote:
ps aux | grep aster

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