How to take thread dump in linux system

-> Get process id by using following command

ps -eaf | grep java

/usr/java/jdk1.5x/bin/jstack -l  1234(process id]) > outputTD1



Or run the following script

rpid= `ps -eaf |grep nextgen| grep jboss-20|awk '{print $2}'`
for i in 1 2 3 4 5 6 7 8 9 10
do
mkdir TD$i
cd TD$i
for j in 1 2 3 4 5 6 7 8 9 10
do
ps -mo pid,lwp,stime,time,pcpu -c java> PSrec$i_$j.out
/usr/java/jdk1.7.x/bin/jstack -l $rpid > outputTD$j
sleep 3
done
sleep 300
cd ../
done



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