148 lines
4.9 KiB
Bash
148 lines
4.9 KiB
Bash
#!/usr/bin/env bash
|
|
|
|
set -e
|
|
|
|
OUTPUT_ROOT=$(pwd)
|
|
|
|
# Thread dump interval defaults to 10 mins
|
|
THREAD_DUMP_INTERVAL_SECS=600
|
|
# Heap dump interval defaults to 30 mins
|
|
HEAP_DUMP_INTERVAL_SECS=1800
|
|
# GC usage interval defaults to 30 secs
|
|
GC_INTERVAL_SECS=30
|
|
# Runtime stats interval defaults to 10 secs
|
|
RUNTIME_INTERVAL_SECS=10
|
|
# Default runs continuously
|
|
STOP_AFTER_SECS=0
|
|
|
|
function usage {
|
|
echo "Usage: ./dd_jvm_stats --pid <PID> [--STOP_AFTER_SECS <SECS:0>] [--runtime-interval <SECS:10>] [--thread-interval <SECS:600>] [--heap-interval <SECS:1800>] [--gc-interval <SECS:30>] [--runtime-interval <SECS:10>] [--output <PATH:./>]"
|
|
}
|
|
|
|
while [[ "$1" != "" ]]; do
|
|
case $1 in
|
|
--pid ) shift
|
|
PROCESS_IDENTIFIER=$1
|
|
;;
|
|
--output ) shift
|
|
OUTPUT_ROOT=$1
|
|
;;
|
|
--thread-interval ) shift
|
|
THREAD_DUMP_INTERVAL_SECS=$1
|
|
;;
|
|
--heap-interval ) shift
|
|
HEAP_DUMP_INTERVAL_SECS=$1
|
|
;;
|
|
--gc-interval ) shift
|
|
GC_INTERVAL_SECS=$1
|
|
;;
|
|
--runtime-interval ) shift
|
|
RUNTIME_INTERVAL_SECS=$1
|
|
;;
|
|
--stop-after ) shift
|
|
STOP_AFTER_SECS=$1
|
|
;;
|
|
--help ) usage
|
|
exit
|
|
;;
|
|
* ) usage
|
|
exit 1
|
|
esac
|
|
shift
|
|
done
|
|
|
|
# At least PID has to be provided
|
|
if [[ -z "$PROCESS_IDENTIFIER" ]]
|
|
then
|
|
usage
|
|
echo "Provide the correct process id:"
|
|
jcmd
|
|
exit 1
|
|
fi
|
|
|
|
HUMAN_READABLE_FORMAT='+%Y-%m-%d %H:%M:%S'
|
|
FILESYSTEM_READABLE_FORMAT='+%Y%m%d_%H%M%S'
|
|
OUTPUT_FOLDER="${OUTPUT_ROOT}/monitoring_session_started_$(date "$FILESYSTEM_READABLE_FORMAT")"
|
|
THREAD_DUMP_FOLDER="$OUTPUT_FOLDER/thread_dumps"
|
|
HEAP_DUMP_FOLDER="$OUTPUT_FOLDER/heap_dumps"
|
|
GC_STATS_FILE="$OUTPUT_FOLDER/gc_stats.csv"
|
|
RUNTIME_STATS_FILE="$OUTPUT_FOLDER/runtime_stats.csv"
|
|
JVM_INFO_FILE="$OUTPUT_FOLDER/jvm_info.txt"
|
|
|
|
# Preparing output folders
|
|
echo "Data will be saved to $OUTPUT_FOLDER"
|
|
mkdir -p ${OUTPUT_FOLDER}
|
|
mkdir -p ${THREAD_DUMP_FOLDER}
|
|
mkdir -p ${HEAP_DUMP_FOLDER}
|
|
|
|
# Dumping JVM INFO
|
|
echo "JVM version $(jcmd ${PROCESS_IDENTIFIER} VM.version)" > ${JVM_INFO_FILE}
|
|
echo "" >> ${JVM_INFO_FILE}
|
|
echo "JVM uptime $(jcmd ${PROCESS_IDENTIFIER} VM.uptime)" >> ${JVM_INFO_FILE}
|
|
echo "" >> ${JVM_INFO_FILE}
|
|
echo "JVM command line $(jcmd ${PROCESS_IDENTIFIER} VM.command_line)" >> ${JVM_INFO_FILE}
|
|
echo "" >> ${JVM_INFO_FILE}
|
|
|
|
# Initializing files
|
|
echo "Date,CPU%,S0C,S1C,S0U,S1U,EC,EU,OC,OU,MC,MU,CCSC,CCSU,YGC,YGCT,FGC,FGCT,GCT" > ${RUNTIME_STATS_FILE}
|
|
|
|
START=$(date +"%s")
|
|
|
|
GC_LOGS_FILE=$(jcmd ${PROCESS_IDENTIFIER} VM.command_line | grep jvm_args | sed 's/^.*Xlog[:]*gc:\([^\s]*\) .*$/\1/')
|
|
|
|
if [[ -z "$GC_LOGS_FILE" ]]; then
|
|
echo "GC logs file was not found, did you set jvm args for GC logs?: for JDK 9+ '-Xlog:gc:/path/to/gc.log', JDK 8 '-Xloggc:/path/to/gc.log -XX:+PrintGC -XX:+PrintGCTimeStamps -XX:+PrintGCDateStamps'"
|
|
else
|
|
echo "Found GC logs file: $GC_LOGS_FILE"
|
|
fi
|
|
|
|
LAST_GC=0
|
|
LAST_CPU=0
|
|
LAST_RUNTIME=0
|
|
LAST_HEAP=${START}
|
|
LAST_THREAD=${START}
|
|
|
|
function tick() {
|
|
NOW=$(date +"%s")
|
|
NOW_HUMAN=$(date "${HUMAN_READABLE_FORMAT}")
|
|
NOW_FILESYSTEM=$(date "${FILESYSTEM_READABLE_FORMAT}")
|
|
|
|
# We can set a stop after a number of seconds
|
|
if [[ "$STOP_AFTER_SECS" -gt "0" ]] && [[ "$NOW" -gt $(( $START + $STOP_AFTER_SECS )) ]]; then
|
|
echo "Maximum running time reached: job completed successfully."
|
|
exit 0
|
|
fi
|
|
|
|
# Runtime live
|
|
if [[ "$NOW" -ge $(( $LAST_RUNTIME + $RUNTIME_INTERVAL_SECS )) ]]; then
|
|
CPU_USAGE=$(ps -p ${PROCESS_IDENTIFIER} -o %cpu | grep '\.')
|
|
MEMORY_USAGE=$(jstat -gc ${PROCESS_IDENTIFIER} | grep '\.' | sed -E 's/ +/,/g')
|
|
echo "$NOW_HUMAN,$CPU_USAGE,$MEMORY_USAGE" >> ${RUNTIME_STATS_FILE}
|
|
LAST_RUNTIME=${NOW}
|
|
fi
|
|
|
|
# GC logs
|
|
if [[ "$NOW" -ge $(( $LAST_GC + $GC_INTERVAL_SECS )) ]] && [[ ! -z "$GC_LOGS_FILE" ]]; then
|
|
cp ${GC_LOGS_FILE} ${GC_STATS_FILE}
|
|
LAST_GC=${NOW}
|
|
fi
|
|
|
|
# Thread dump
|
|
if [[ "$NOW" -ge $(( $LAST_THREAD + $THREAD_DUMP_INTERVAL_SECS )) ]]; then
|
|
THREAD_FILE="${THREAD_DUMP_FOLDER}/thread-dump-${NOW_FILESYSTEM}"
|
|
jcmd ${PROCESS_IDENTIFIER} Thread.print > ${THREAD_FILE}
|
|
LAST_THREAD=${NOW}
|
|
echo "${NOW_HUMAN} - Thread dump saved to: $THREAD_FILE"
|
|
fi
|
|
|
|
# Heap dump
|
|
if [[ "$NOW" -ge $(( $LAST_HEAP + $HEAP_DUMP_INTERVAL_SECS )) ]]; then
|
|
HEAP_FILE="${HEAP_DUMP_FOLDER}/heap-dump-${NOW_FILESYSTEM}.hprof"
|
|
jcmd ${PROCESS_IDENTIFIER} GC.heap_dump ${HEAP_FILE}
|
|
LAST_HEAP=${NOW}
|
|
echo "${NOW_HUMAN} - Heap dump saved to: $HEAP_FILE"
|
|
fi
|
|
}
|
|
|
|
while sleep 1; do tick; done
|