hugegraph-server/hugegraph-dist/src/assembly/static/bin/start-monitor.sh

#!/bin/bash
#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements. See the NOTICE file distributed with this
# work for additional information regarding copyright ownership. The ASF
# licenses this file to You under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
#
function abs_path() {
    SOURCE="${BASH_SOURCE[0]}"
    while [ -h "$SOURCE" ]; do
        DIR="$( cd -P "$( dirname "$SOURCE" )" && pwd )"
        SOURCE="$(readlink "$SOURCE")"
        [[ $SOURCE != /* ]] && SOURCE="$DIR/$SOURCE"
    done
    echo "$( cd -P "$( dirname "$SOURCE" )" && pwd )"
}

BIN=`abs_path`
TOP="$(cd $BIN/../ && pwd)"

. $BIN/util.sh

if [ "$JAVA_HOME" == "" ]; then
    echo "Must set JAVA_HOME environment variable and installed jdk >= 1.8"
    exit 1
fi

# Monitor HugeGraphServer every minute, if the server crashes then restart it.
# Modify the frequency according to actual needs carefully.
CRONTAB_JOB="*/1 * * * * export JAVA_HOME=$JAVA_HOME && $TOP/bin/monitor-hugegraph.sh"

crontab_append "$CRONTAB_JOB"