Jmap can't connect to make a dump

Question

We have an open beta of an app which occasionally causes the heapspace to overflow. The JVM reacts by going on a permanent vacation.

To analyze this I would like to

Answer 1

I was running the jmap and the application with the same user and still get the error.

The solution was run that comand before the jmap

echo 0 | sudo tee /proc/sys/kernel/yama/ptrace_scope

Than is just use jmap and will works fine

jmap -heap 17210