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#!/bin/bash
# Copyright 2017 Yahoo Holdings. 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=${myname##*/}
if [ "$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
}
findroot
# END environment bootstrap section
Usage() {
cat <<EOF
Usage: ${0##*/} start [OPTION]...
Usage: ${0##*/} stop [OPTION]...
Manage Vespa standalone jdisc container service.
Options:
-u USER Run as USER. Overrides any VESPA_USER environment variable.
-s SERVICE The service name.
-- ARGS... Pass the rest of the arguments (ARGS) to the Java invocation
EOF
exit 1
}
Fail() {
printf "%s\n" "$*"
exit 1
}
FixDataDirectory() {
if ! [ -d "$1" ]; then
echo "Creating data directory '$1'"
mkdir -p "$1" || exit 1
fi
chown "${VESPA_USER}" "$1"
chmod 755 "$1"
}
StartCommand() {
local service="$1"
shift
local -a jvm_arguments=("$@")
local service_regex='^[0-9a-zA-Z_-]+$'
if ! [[ "$service" =~ $service_regex ]]; then
Fail "Service must match regex '$service_regex'"
fi
local pidfile="$VESPA_HOME/var/run/$service.pid"
if test -r "$pidfile"; then
echo "$service is already running as PID $(< "$pidfile") according to $pidfile"
return
fi
# common setup
export VESPA_SERVICE_NAME="$service"
# stuff for the process:
local appdir="$VESPA_HOME/conf/$service-app"
local cfpfile="$VESPA_HOME/var/jdisc_core/$service.properties"
local bundlecachedir="$VESPA_HOME/var/vespa/bundlecache/$service"
cd "$VESPA_HOME" || Fail "Cannot cd to $VESPA_HOME"
fixlimits
checkjava
FixDataDirectory "$(dirname "$pidfile")"
local vespa_log="$VESPA_HOME/logs/vespa/vespa.log"
export VESPA_LOG_TARGET="file:$vespa_log"
FixDataDirectory "$(dirname "$vespa_log")"
export VESPA_LOG_CONTROL_FILE="$VESPA_HOME/var/db/vespa/logcontrol/$service.logcontrol"
export VESPA_LOG_CONTROL_DIR="$(dirname "$VESPA_LOG_CONTROL_FILE")"
FixDataDirectory "$VESPA_LOG_CONTROL_DIR"
# Does not need fast allocation
export MALLOC_ARENA_MAX=1
# will be picked up by standalone-container:
export standalone_jdisc_container__app_location="$appdir"
# class path
CP="$VESPA_HOME/lib/jars/jdisc_core-jar-with-dependencies.jar"
FixDataDirectory "$(dirname "$cfpfile")"
printenv > "$cfpfile"
FixDataDirectory "$bundlecachedir"
java \
"${jvm_arguments[@]}" \
-Xms128m -Xmx2048m \
-XX:+PreserveFramePointer \
-XX:+HeapDumpOnOutOfMemoryError \
-XX:HeapDumpPath="$VESPA_HOME/var/crash" \
-XX:OnOutOfMemoryError="kill -9 %p" \
-Djava.library.path="$VESPA_HOME/lib64" \
-Djava.awt.headless=true \
-Dsun.rmi.dgc.client.gcInterval=3600000 \
-Dsun.net.client.defaultConnectTimeout=5000 \
-Dsun.net.client.defaultReadTimeout=60000 \
-Djavax.net.ssl.keyStoreType=JKS \
-Djdisc.config.file="$cfpfile" \
-Djdisc.export.packages= \
-Djdisc.cache.path="$bundlecachedir" \
-Djdisc.debug.resources=false \
-Djdisc.bundle.path="$VESPA_HOME/lib/jars" \
-Djdisc.logger.enabled=true \
-Djdisc.logger.level=ALL \
-Djdisc.logger.tag="jdisc/$service" \
-Dfile.encoding=UTF-8 \
-cp "$CP" \
com.yahoo.jdisc.core.StandaloneMain standalone-container-jar-with-dependencies.jar &
local pid="$!"
echo "$pid" > "$pidfile"
}
Kill() {
local force="$1"
local expected_user="$2"
local expected_comm="$3" # Executable name only
local pid="$4"
local -i now
if ! now=$(date +%s); then
Fail "Failed to get the current date in seconds since epoch"
fi
local -i timeout=$(( now + 300 ))
local has_killed=false
while true; do
local ps_output=""
if ! ps_output=$(ps -p "$pid" -o user= -o comm=); then
# success
return
fi
local user comm
read -r user comm <<< "$ps_output"
if test "$user" != "$expected_user"; then
echo "Warning: Pid collision ($pid): Expected user $expected_user but found $user."
echo "Will assume original process has died."
return
fi
if test "$comm" != "$expected_comm"; then
echo "Warning: Pid collision ($pid): Expected program $expected_comm but found $comm."
echo "Will assume original process has died."
return
fi
if ! "$has_killed"; then
if $force; then
if ! kill -KILL "$pid"; then
Fail "Failed to kill $pid"
fi
else
if ! kill "$pid"; then
Fail "Failed to kill $pid"
fi
fi
has_killed=true
fi
sleep 1
now=$(date +%s)
if (( now >= timeout )); then
Fail "Process $pid still exists after $timeout seconds, giving up"
fi
done
}
StopCommand() {
local user="$1"
shift
local force=false
while (( $# > 0 )); do
case "$1" in
-f|--force)
force=true
shift
;;
*) break ;;
esac
done
if (( $# != 1 )); then
Fail "Stop command takes exactly one argument"
fi
local service="$1"
local pidfile="$VESPA_HOME/var/run/$service.pid"
if ! test -r "$pidfile"; then
echo "$service is not running"
return
fi
local pid=$(< "$pidfile")
if ! [[ "$pid" =~ ^[0-9]+$ ]]; then
Fail "Pid file '$pidfile' does not contain a valid pid: $pid"
fi
Kill "$force" "$user" java "$pid"
rm -f "$pidfile"
}
Main() {
if (( $# == 0 )); then
Usage
fi
local command="$1"
shift
local service="standalone/container"
local user="$VESPA_USER"
local -a jvm_arguments=()
while (( $# > 0 )); do
case "$1" in
--help|-h) Usage ;;
--service|-s)
service="$2"
shift 2
;;
--user|-u)
user="$2"
shift 2
;;
--)
shift
jvm_arguments=("$@")
break
;;
*) break ;;
esac
done
# Service name will be included in paths and possibly environment variable
# names, so be restrictive.
local service_regex='^[a-zA-Z0-9_-]+$'
if test -z "$service"; then
Fail "SERVICE not specified"
elif ! [[ "$service" =~ $service_regex ]]; then
Fail "Service must math the regex '$service_regex'"
fi
if ! getent passwd "$user" &> /dev/null; then
Fail "Bad user ($user): not found in passwd"
elif test "$(id -un)" != "$user"; then
Fail "${0##*/} must be started by $user"
fi
case "$command" in
help) Usage ;;
start) StartCommand "$service" "${jvm_arguments[@]}" ;;
stop) StopCommand "$user" "$service" "$@" ;;
*) Fail "Unknown command '$command'" ;;
esac
}
Main "$@"
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