Ubuntu下用不了jmap的解决办法Unbuntu下用jmap报错：jmap -heap 3051Attaching to process ID 3051, please
Ubuntu下用不了jmap的解决办法
Unbuntu下用jmap报错：
jmap -heap 3051
Attaching to process ID 3051, please wait...
Error attaching to process: sun.jvm.hotspot.debugger.DebuggerException: Can't attach to the process
解决：执行下面的命令：
echo 0 | sudo tee /proc/sys/kernel/yama/ptrace_scope
然后就可以用了