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#!/usr/bin/env bash
# Copyright Verizon Media. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
# BEGIN environment bootstrap section
# Do not edit between here and END as this section should stay identical in all scripts
findpath () {
myname=${0}
mypath=${myname%/*}
myname=${myname##*/}
empty_if_start_slash=${mypath%%/*}
if [ "${empty_if_start_slash}" ]; then
mypath=$(pwd)/${mypath}
fi
if [ "$mypath" ] && [ -d "$mypath" ]; then
return
fi
mypath=$(pwd)
if [ -f "${mypath}/${myname}" ]; then
return
fi
echo "FATAL: Could not figure out the path where $myname lives from $0"
exit 1
}
COMMON_ENV=libexec/vespa/common-env.sh
source_common_env () {
if [ "$VESPA_HOME" ] && [ -d "$VESPA_HOME" ]; then
export VESPA_HOME
common_env=$VESPA_HOME/$COMMON_ENV
if [ -f "$common_env" ]; then
. $common_env
return
fi
fi
return 1
}
findroot () {
source_common_env && return
if [ "$VESPA_HOME" ]; then
echo "FATAL: bad VESPA_HOME value '$VESPA_HOME'"
exit 1
fi
if [ "$ROOT" ] && [ -d "$ROOT" ]; then
VESPA_HOME="$ROOT"
source_common_env && return
fi
findpath
while [ "$mypath" ]; do
VESPA_HOME=${mypath}
source_common_env && return
mypath=${mypath%/*}
done
echo "FATAL: missing VESPA_HOME environment variable"
echo "Could not locate $COMMON_ENV anywhere"
exit 1
}
findhost () {
if [ "${VESPA_HOSTNAME}" = "" ]; then
VESPA_HOSTNAME=$(vespa-detect-hostname || hostname -f || hostname || echo "localhost") || exit 1
fi
validate="${VESPA_HOME}/bin/vespa-validate-hostname"
if [ -f "$validate" ]; then
"$validate" "${VESPA_HOSTNAME}" || exit 1
fi
export VESPA_HOSTNAME
}
findroot
findhost
# END environment bootstrap section
set -euo pipefail
if [ $# -ne 2 ]; then
echo "Usage: $0 <id> <output-directory>"
echo ""
vespa-sentinel-cmd list 2>/dev/null
exit 1
fi
readonly service=$1
readonly output_directory=$2
if ! [ -d "${output_directory}" -a -w "${output_directory}" ]; then
echo "Directory '${output_directory}' is not writable"
exit 1
fi
readonly status=$(vespa-sentinel-cmd list | grep "id=\"${service}\"")
if [ -z "${status}" ]; then
echo "No service named '${service}'"
exit 1
else
echo "Found service: ${status}"
fi
readonly jvm_pid=$(echo ${status} | cut -d " " -f 4 | cut -d "=" -f 2)
if ! [[ "${jvm_pid}" =~ ^[0-9]+$ ]]; then
echo "Could not find valid pid for '${service}' (pid='${jvm_pid}')"
exit 1
else
echo "Pid for '${service}' is '${jvm_pid}'"
fi
if ! [ -n $(ps -p ${jvm_pid} -o pid=) ]; then
echo "Could not find process for '${jvm_pid}'"
exit 1
fi
echo "Starting Java Flight Recorder recording"
jcmd ${jvm_pid} JFR.start name=vespa-jvm-dumper path-to-gc-roots=true settings=profile filename=${output_directory}/jvm-jfr-dump.jfr
readonly sleep_seconds=15
echo "Waiting ${sleep_seconds} before stopping Java Flight Recorder"
sleep ${sleep_seconds}s
echo "Dumping Java Flight Recorder recording to file"
jcmd ${jvm_pid} JFR.dump name=vespa-jvm-dumper
echo "Creating heap dump"
readonly heap_dump_file=${output_directory}/jvm-heap-dump.hprof
if test -f "${heap_dump_file}"; then
rm "${heap_dump_file}"
fi
jmap -dump:live,format=b,file=${heap_dump_file} ${jvm_pid}
echo "Trigger vespa-malloc to dump information to Vespa log"
kill -SIGPROF ${jvm_pid}
echo "Getting jmap information"
jhsdb jmap --heap --pid ${jvm_pid} > ${output_directory}/jmap-output.txt
echo "Getting jstat information"
jstat -gcutil ${jvm_pid} > ${output_directory}/jstat-output.txt
echo "Getting jstack information"
jstack ${jvm_pid} > ${output_directory}/jstack-output.txt
echo "Getting pmap information"
pmap -x ${jvm_pid} | sort -nk3 | tail -10 > ${output_directory}/pmap-output.txt
echo "Copying vespa logs"
cp ${VESPA_HOME}/logs/vespa/vespa.log ${output_directory}/vespa.log
echo "Done!"
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