jconsole

ctrl+break

kill -3 PID

kill -s 3 PID

kill -QUIT PID

type kill

man kill

man -k signal

man --section 7 signals | grep SIGQUIT

man --section 7 signals | grep Core

man core

vim /proc/sys/kernel/core_pattern

ps | grep java

pgrep java

pgrep -u root java

pgrep -u root,tammo java

jps -q

jps

jps -l

jps -m

jcmd

jps -v

jcmd -l

ls /tmp/hsperfdata_tammo/

while true; do; ls /tmp/hsperfdata_tammo/; done

jcmd -options

jcmd 12769 help

jcmd 12769 help Thread.print

jcmd 12769 Thread.print

jcmd 12769 Thread.print > threads

jcmd 12769 Thread.print -l > threadsAndLocks

jcmd 14222 Thread.print -l > threadsAndLocks

jstack 14222 > threaddump

man jcmd

man jinfo

man jstack

jvisualvm -J-Xverbose:gc

for i in $(seq 1 5); do; jstack 16002 > td$i; echo $i; sleep 5; done;

jconsole

jvisualvm