dump-stack3

#!/bin/bash

#
# Create a dump of webtop tomcat instance
#

NOW=$(date +%s)
OUT_LOG_FILE="/tmp/webtop-$NOW".log
OUT_DUMP_FILE="/tmp/webtop-$NOW".dump
OUT_STAT_FILE="/tmp/webtop-stat-$NOW".txt


which jstack &>/dev/null
# Install required dependcies
if [ $? -gt 0 ]; then
    yum install sysstat java-1.8.0-openjdk-devel -y
fi

if [ $? -gt 0 ]; then
    echo "Can't install unzip"
    exit 1
fi


echo "Dumping status ..."
tomcat_pid=$(systemctl -p MainPID show tomcat8@webtop | cut -d'=' -f 2)
pidstat -p $tomcat_pid -t > $OUT_STAT_FILE
jstack -F -l $tomcat_pid > $OUT_LOG_FILE
echo >> $OUT_LOG_FILE
su - tomcat -s /bin/bash -c "jmap -dump:live,format=b,file=$OUT_DUMP_FILE $tomcat_pid"
gzip $OUT_DUMP_FILE
echo "Dumping pids ..."
echo >> $OUT_LOG_FILE
ps -T u -p $tomcat_pid >> $OUT_LOG_FILE

echo "Status log: $OUT_LOG_FILE"
echo "Heap dump: $OUT_DUMP_FILE.gz"