Add script 'check_local_elasticseaarch_service.sh'.
This commit is contained in:
parent
260e3bdf57
commit
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563
check_local_elasticseaarch_service.sh
Executable file
563
check_local_elasticseaarch_service.sh
Executable file
@ -0,0 +1,563 @@
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#!/usr/bin/env bash
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script_name="$(basename $(realpath $0))"
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working_dir="$(dirname $(realpath $0))"
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conf_file="${working_dir}/conf/${script_name%%.*}.conf"
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LOCK_DIR="/tmp/${script_name%%.*}.LOCK"
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RESTART_CHECK_FILE="/tmp/${script_name%%.*}.NEED-RESTART"
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declare -a alert_email_arr
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# -------------
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# --- Some functions
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# -------------
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clean_up() {
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# Perform program exit housekeeping
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rm -rf "$LOCK_DIR"
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if $LOGGING ; then
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echo ""
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fi
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exit $1
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}
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echononl(){
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if $terminal && $LOGGING ; then
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echo X\\c > /tmp/shprompt$$
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if [ `wc -c /tmp/shprompt$$ | awk '{print $1}'` -eq 1 ]; then
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echo -e -n " $*\\c" 1>&2
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else
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echo -e -n " $*" 1>&2
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fi
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rm /tmp/shprompt$$
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fi
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}
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fatal(){
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echo ""
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if $terminal ; then
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echo -e "[ \033[31m\033[1mError\033[m ]: $*"
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echo ""
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echo -e "\t\033[31m\033[1mScript was interupted\033[m!"
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else
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echo " [ Fatal ]: $*"
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echo ""
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echo " Script was terminated...."
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fi
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echo ""
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clean_up 1
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}
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error (){
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echo ""
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if $terminal ; then
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echo -e "\t[ \033[31m\033[1mError\033[m ]: $*"
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else
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echo "[ Error ]: $*"
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fi
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echo ""
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}
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warn (){
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echo ""
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if $terminal ; then
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echo -e "\t[ \033[33m\033[1mWarning\033[m ]: $*"
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else
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echo "[ Warning ]: $*"
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fi
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echo ""
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}
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info (){
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echo ""
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if $terminal ; then
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echo -e " [ \033[32m\033[1mInfo\033[m ] $*"
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else
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echo "[ Info ] $*"
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fi
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echo ""
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}
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ok (){
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echo ""
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if $terminal ; then
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echo -e "\t[ \033[32m\033[1mOk\033[m ]: $*"
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else
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echo "[ Ok ]: $*"
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fi
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echo ""
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}
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echo_done() {
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if $terminal && $LOGGING ; then
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echo -e "\033[75G[ \033[32mdone\033[m ]"
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else
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if $LOGGING ; then
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echo " [ done ]"
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fi
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fi
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}
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echo_ok() {
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if $terminal && $LOGGING ; then
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echo -e "\033[75G[ \033[32mok\033[m ]"
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else
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if $LOGGING ; then
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echo " [ ok ]"
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fi
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fi
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}
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echo_failed(){
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if $terminal && $LOGGING ; then
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echo -e "\033[75G[ \033[1;31mfailed\033[m ]"
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else
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if $LOGGING ; then
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echo " [ failed ]"
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fi
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fi
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}
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echo_skipped() {
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if $terminal && $LOGGING ; then
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echo -e "\033[75G[ \033[33m\033[1mskipped\033[m ]"
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else
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if $LOGGING ; then
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echo " [ skipped ]"
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fi
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fi
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}
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is_number() {
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return $(test ! -z "${1##*[!0-9]*}" > /dev/null 2>&1);
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# - also possible
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# -
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#[[ ! -z "${1##*[!0-9]*}" ]] && return 0 || return 1
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#return $([[ ! -z "${1##*[!0-9]*}" ]])
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}
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reboot_system() {
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# content_type='Content-Type: text/plain;\n charset="utf-8"'
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# datum="$(date +"%d.%m.%Y")"
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# from_address="root@$(hostname --long)"
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# msg="S*"
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#
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#
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# for _email in ${alert_email_arr[@]} ; do
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#
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# echo -e "To:${_email}\n${content_type}\nSubject:[Fatal: Local Webservice NOT rsponding] - Reboot System\n${msg}" \
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# | sendmail -F "Error `hostname -f`" -f $sender_address $_email
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# done
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sleep 10
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/sbin/reboot -f > /dev/null 2>&1
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}
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# -------------
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# --- Read Configurations from $conf_file
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# -------------
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# Some default values
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#
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DEFAULT_NUMBER_LINES=20
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DEFAULT_TIME_OUT=20
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#DEFAULT_CONFLICTING_SCRIPTS="/root/bin/monitoring/check_webservice_load.sh"
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if [[ ! -f "$conf_file" ]]; then
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echo ""
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echo -e " [ Fatal ] Configuration file '$(basename ${conf_file})' not found!"
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echo ""
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echo -e "\tScript terminated.."
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echo ""
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exit 1
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else
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source "$conf_file"
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fi
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for _email in $alert_email_addresses ; do
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alert_email_arr+=("$_email")
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done
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[[ -n "$sender_address" ]] || sender_address="check_local_es_service@$(hostname -f)"
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[[ -n "$content_type" ]] || content_type='Content-Type: text/plain;\n charset="utf-8"'
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[[ -n "$TIME_OUT" ]] || TIME_OUT=$DEFAULT_TIME_OUT
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TIME_OUT_MAX="$(expr ${TIME_OUT} + 5)"
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#[[ -n "$CONFLICTING_SCRIPTS" ]] || CONFLICTING_SCRIPTS="$DEFAULT_CONFLICTING_SCRIPTS"
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[[ -n "$CONFLICTING_SCRIPTS" ]] || CONFLICTING_SCRIPTS=""
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# -------------
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# --- Check some prerequisites
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# -------------
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# - Running in a terminal?
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# -
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if [[ -t 1 ]] ; then
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terminal=true
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LOGGING=true
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else
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terminal=false
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LOGGING=false
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fi
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# - Stop here, if these give scripts are running
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# -
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if [[ ${#CONFLICTING_SCRIPTS} -gt 0 ]] ; then
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# - Try using a random start delay to prevent (or at least have a small chance) that
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# - conflicting scripts will both/all abort if they start at the same time.
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# -
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# - !! Notice !!
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# - This only makes sense if a fixed LOCK directory is used, otherwise the process list
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# - (and NOT the LOCK-directory) is used to look for scripts running in parallel.
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# -
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# - Skip delay if running in an terminal (from copnsole)
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# -
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if ! $terminal ; then
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if [[ "$LOCK_DIR" = "/tmp/${script_name%%.*}.LOCK" ]]; then
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_shift="$(( $RANDOM % 10 + 1 ))"
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sleep $(( $RANDOM % 25 + $_shift ))
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fi
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fi
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_stop_running=false
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for _val in $CONFLICTING_SCRIPTS ; do
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IFS=':' read -a _val_arr <<< "${_val}"
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_script_name="$(basename ${_val_arr[0]})"
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if [[ -n "${_val_arr[1]}" ]] ; then
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if [[ "${_val_arr[1]}" = "CHECK_PROCESS_LIST" ]] ; then
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check_string_ps="${_val_arr[0]}"
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if ps -e f | grep -E "\s+${check_string_ps}" | grep -v grep | grep -v -E "\s+vim\s+" > /dev/null ; then
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_stop_running=true
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fi
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elif [[ -d "${_val_arr[1]}" ]] ; then
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_stop_running=true
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fi
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elif [[ -d "/tmp/${_script_name%%.*}.LOCK" ]]; then
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_stop_running=true
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fi
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if $_stop_running ; then
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echo ""
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echo "[ Error ]: The \"${_script_name}\" script is currently running, but it conflicts with this script."
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echo ""
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echo " Exiting now.."
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echo ""
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clean_up 1
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fi # if $_stop_running ; then
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done # for _val in $CONFLICTING_SCRIPTS ; do
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fi # if [[ ${#CONFLICTING_SCRIPTS} -gt 0 ]] ; then
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# -------------
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# - Job is already running?
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# -------------
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# - If job already runs, stop execution..
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# -
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if mkdir "$LOCK_DIR" 2> /dev/null ; then
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## - Remove lockdir when the script finishes, or when it receives a signal
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trap "clean_up 1" SIGHUP SIGINT SIGTERM
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else
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datum="$(date +"%d.%m.%Y %H:%M")"
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msg="[ Error ]: A previos instance of \"`basename $0`\" seems already be running.\n\n Exiting now.."
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echo ""
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echo "[ Error ]: A previos instance of that script \"`basename $0`\" seems already be running."
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echo ""
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echo -e " Exiting now.."
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echo ""
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for _email in ${alert_email_arr[@]} ; do
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echo -e "To:${_email}\n${content_type}\nSubject:Error cronjob `basename $0` -- $datum\n${msg}\n" \
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| sendmail -F "Error `hostname -f`" -f $sender_address $_email
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done
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exit 1
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fi
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# -------------
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# --- Check some further prerequisites
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# -------------
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# - Systemd supported ?
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# -
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systemd=$(which systemd)
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systemctl=$(which systemctl)
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if $LOGGING ; then
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echo ""
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fi
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declare -i response=-1
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ES_SERVICE_DOWN=false
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if [[ -n "$LOCAL_ES_SERVICE_TO_CHECK" ]] ; then
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echononl "Check local Elasticsearch service \033[1m$LOCAL_ES_SERVICE_TO_CHECK\033[m .."
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declare -i i=0
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while [[ $i -lt 3 ]] ; do
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response="$(curl --max-time $TIME_OUT_MAX --connect-timeout $TIME_OUT \
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-I -k -L --write-out %{http_code} --silent --output /dev/null $LOCAL_ES_SERVICE_TO_CHECK \
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2> ${LOCK_DIR}/error.log)"
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# 200 - OK
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if [[ $response -eq 200 ]] ; then
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echo_ok
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if [[ -f "$RESTART_CHECK_FILE" ]] ; then
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rm -f "$RESTART_CHECK_FILE"
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fi
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clean_up 0
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fi
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sleep 2
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((i++))
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done
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echo_failed
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ES_SERVICE_DOWN=true
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else
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warn "No local Elasticsearch Service to check is given (empty var 'LOCAL_ES_SERVICE_TO_CHECK')"
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clean_up 10
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fi
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msg_process_list="process list:\n=============\n$(ps -e f)"
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msg_head="\n==========\nSystem logfiles\n==========\n"
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msg00="Last entries (20 lines) of \"/var/log/syslog\":"
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msg01="==============================================="
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msg02=`tail -n 20 /var/log/syslog`
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msg03="Last entries (20 lines) of \"/var/log/messages\":"
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msg04="================================================="
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msg05=`tail -n 20 /var/log/messages`
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msg06="Last entries (20 lines) of \"/var/log/auth.log\":"
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msg07="================================================="
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msg08=`tail -n 20 /var/log/auth.log`
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msg09="Last entries (20 lines) of \"/var/log/daemon.log\":"
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msg10="================================================="
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msg11=`tail -n 20 /var/log/daemon.log`
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msg12="Last entries (20 lines) of \"/var/log/kern.log\":"
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msg13="================================================="
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msg14=`tail -n 20 /var/log/kern.log`
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msg15="Lastlog:"
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msg16="========"
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msg17=`lastlog`
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msg18="dmesg:"
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msg19="======"
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msg20=`dmesg -T`
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msg="${msg_head}\n${msg00}\n${msg01}\n${msg02}\n\n${msg03}\n${msg04}\n${msg05}\n\n${msg06}\n${msg07}\n${msg08}\n\n${msg09}\n${msg10}\n${msg11}\n\n${msg12}\n${msg13}\n${msg14}\n\n${msg15}\n${msg16}\n${msg17}\n\n${msg18}\n${msg19}\n${msg20}"
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if [[ ${#LOG_FILES_TO_MONITOR} -gt 0 ]] ; then
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msg_user_defined="\n==========\nUser defined logfiles\n==========\n"
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for _val in $LOG_FILES_TO_MONITOR ; do
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IFS=':' read -a _val_arr <<< "${_val}"
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_log_file="${_val_arr[0]}"
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if [[ -n "${_val_arr[0]}" ]] && is_number "${_val_arr[1]}" ; then
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_number_lines=${_val_arr[1]}
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else
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_number_lines=$DEFAULT_NUMBER_LINES
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fi
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if [[ -s "${_log_file}" ]] ; then
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msg_user_defined="${msg_user_defined}\n---\nLast entries (${_number_lines} lines) of \"${_log_file}\":\n---\n$(tail -n ${_number_lines} ${_log_file})\n"
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else
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msg_user_defined="${msg_user_defined}\n---\nLast entries (${_number_lines} lines) of \"${_log_file}\":\n---\n-- FILE IS EMPTY --\n"
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fi
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done
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msg_user_defined="${msg_user_defined}\n\n"
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else
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msg_user_defined=""
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fi
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if [[ ! -f "$RESTART_CHECK_FILE" ]]; then
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touch "$RESTART_CHECK_FILE"
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error "The local Elasticsearch Service seems to be down."
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if $LOGGING ; then
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echo -e "\n \033[1mFirst we try to restore the system. If this is not successful,\n the system will be restarted in about 5 minutes.\033[m"
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else
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echo ""
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echo "First we try to restore the system. If this is not successful,"
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echo ""the system will be restarted in about 5 minutes.
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echo ""
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fi
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err_msg="\n[ Warning ]: The local Elasticsearch Service seems to be down.\n"
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err_msg="${err_msg}\nFirst we try to restore the system. If this is not successful,\nthe system will be restarted in about 5 minutes.\n"
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datum="$(date +"%d.%m.%Y %H:%M")"
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for _email in ${alert_email_arr[@]} ; do
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echo -e "To:${_email}\n${content_type}\nSubject:[Warning] Local Elasticsearch Service is not available.\n${err_msg}\n\nFilesystem usage:\n=================\n$(df -h)\n\n${msg_process_list}\n\n${msg_user_defined}\n${msg}" \
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| sendmail -F "Error `hostname -f`" -f $sender_address $_email
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done
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else
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error "The local Elasticsearch Service seems to be down."
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if $LOGGING ; then
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echo -e "\n\033[1mGoing to restart the system NOW..\033[m"
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else
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echo ""
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echo "Going to restart the system NOW.."
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echo ""
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fi
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err_msg="\n[ Error ]: The local Elasticsearch Service seems to be down.\n"
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err_msg="${err_msg}\nGoing to restart the system..\n"
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datum="$(date +"%d.%m.%Y %H:%M")"
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for _email in ${alert_email_arr[@]} ; do
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echo -e "To:${_email}\n${content_type}\nSubject:[Error] Local Elasticsearch Service is not available.\n${err_msg}\n\nFilesystem usage:\n=================\n$(df -h)\n\n${msg_process_list}\n\n${msg_user_defined}\n${msg}" \
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| sendmail -F "Error `hostname -f`" -f $sender_address $_email
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done
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rm -f "$RESTART_CHECK_FILE"
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reboot_system
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fi
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if $ES_SERVICE_DOWN ; then
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error "ElasticSearch Service seems to be down. Going to restart Service.."
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err_msg="\n[ Error ]: ElasticSearch Service seems to be down.
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Going to restart ElasticSearch Service\n"
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echononl "Stop ElasticSearch Service.."
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$systemctl stop elasticsearch > /dev/null 2> ${LOCK_DIR}/error.log
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if [[ $? -ne 0 ]]; then
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echo_failed
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error "$(cat ${LOCK_DIR}/error.log)"
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else
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echo_done
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fi
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declare -i counter=0
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PID="$(ps aux | grep -E "/elasticsearch/" | grep -v grep | tail -n 1 | awk '{print$2}' 2> /dev/null)"
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while [[ -n "$PID" ]] ; do
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if [[ $counter -gt 3 ]] ; then
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break
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fatal "Killing remaining ElasticSearch Process(es) failed!"
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fi
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warn "There are still ElasticSearch processes running"
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((counter++))
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|
||||
echononl "${counter}: Kill remaining ElasticSearch Process(es).."
|
||||
if [[ -s "/run/elasticsearch/elasticsearch.pid" ]]; then
|
||||
kill $(cat /run/elasticsearch/elasticsearch.pid) > ${LOCK_DIR}/error.log 2>&1
|
||||
if [[ $? -ne 0 ]]; then
|
||||
echo_failed
|
||||
error "$(cat ${LOCK_DIR}/error.log)"
|
||||
else
|
||||
echo_done
|
||||
fi
|
||||
rm -f "/run/elasticsearch/elasticsearch.pid" > /dev/null 2>&1
|
||||
else
|
||||
killall /usr/share/elasticsearch/jdk/bin/java > ${LOCK_DIR}/error.log 2>&1
|
||||
if [[ $? -ne 0 ]]; then
|
||||
echo_failed
|
||||
error "$(cat ${LOCK_DIR}/error.log)"
|
||||
else
|
||||
echo_done
|
||||
fi
|
||||
fi
|
||||
sleep 1
|
||||
PID="$(ps aux | grep -E "/elasticsearch/" | grep -v grep | tail -n 1 | awk '{print$2}' 2> /dev/null)"
|
||||
done
|
||||
|
||||
echononl "Start ElasticSearch Service.."
|
||||
$systemctl start elasticsearch > /dev/null 2> ${LOCK_DIR}/error.log
|
||||
if [[ $? -ne 0 ]]; then
|
||||
echo_failed
|
||||
error "$(cat ${LOCK_DIR}/error.log)"
|
||||
else
|
||||
echo_done
|
||||
fi
|
||||
|
||||
declare -i counter=0
|
||||
PID="$(ps aux | grep -E "/elasticsearch/" | grep -v grep | tail -n 1 | awk '{print$2}' 2> /dev/null)"
|
||||
sleep 2
|
||||
while [[ "X${PID}" = "X" ]]; do
|
||||
sleep 2
|
||||
PID="$(ps aux | grep -E "[[:digit:]]\s+/opt/mattermost/bin/mattermost" | grep -v grep | tail -n 1 | awk '{print$2}' 2> /dev/null)"
|
||||
if [[ $counter -gt 10 ]]; then
|
||||
break
|
||||
else
|
||||
((counter++))
|
||||
fi
|
||||
done
|
||||
|
||||
if [[ "X${PID}" = "X" ]] ; then
|
||||
error "Restarting Elasticsearch Service failed!"
|
||||
|
||||
err_msg="${err_msg}\n[ Error ]: Restarting Elasticsearch Service failed!"
|
||||
|
||||
else
|
||||
ok "Elasticsearch Service is up and running"
|
||||
|
||||
err_msg="${err_msg}\n[ OK ]: Elasticsearch Service is up and running"
|
||||
fi
|
||||
|
||||
fi
|
||||
|
||||
|
||||
if $LOGGING ; then
|
||||
echo ""
|
||||
fi
|
||||
clean_up 0
|
||||
95
conf/check_local_elasticseaarch_service.conf.sample
Normal file
95
conf/check_local_elasticseaarch_service.conf.sample
Normal file
@ -0,0 +1,95 @@
|
||||
#-----------------------------
|
||||
# Settings for script check_local_mattermost_service.sh
|
||||
#-----------------------------
|
||||
|
||||
# - LOCAL_ES_SERVICE_TO_CHECK
|
||||
# -
|
||||
# - mattermost websites, whichn will be checked
|
||||
# -
|
||||
# - Example: LOCAL_ES_SERVICE_TO_CHECK="http://127.0.0.1:9200"
|
||||
# -
|
||||
#LOCAL_ES_SERVICE_TO_CHECK=""
|
||||
|
||||
# - LOG_FILES_TO_MONITOR[:<n>]
|
||||
# -
|
||||
# - Print out the last lines from theses given logfiles
|
||||
# -
|
||||
# - its possible to give a number of lines, which should be printed out
|
||||
# - by appending it seperated ba a colon ':'.
|
||||
# -
|
||||
# - The default number of printed out lines is 20.
|
||||
# -
|
||||
# - Example:
|
||||
# - LOG_FILES_TO_MONITOR="
|
||||
# - /var/log/nginx/access.log:40
|
||||
# - /var/log/nginx/error.log:25
|
||||
# - "
|
||||
# -
|
||||
#LOG_FILES_TO_MONITOR=""
|
||||
|
||||
# - TIME_OUT
|
||||
# -
|
||||
# - Timeout for curl request of each website
|
||||
# -
|
||||
# - Defaults to: TIME_OUT=30
|
||||
# -
|
||||
#TIME_OUT=30
|
||||
|
||||
|
||||
# - CONFLICTING_SCRIPTS
|
||||
# -
|
||||
# - The scripts listed here conflict with this script. If one of these scripts
|
||||
# - is currently running, this script will be stopped.
|
||||
# -
|
||||
# - In addition to the script, a LOCK directory can also be specified which is
|
||||
# - connected to it.
|
||||
# -
|
||||
# - If no fixed LOCK directory is connected to the script, set
|
||||
# - this value to the constant 'CHECK_PROCESS_LIST'.
|
||||
# -
|
||||
# - If no value for the LOCK directory is given, the LOCK directory
|
||||
# - '/tmp/<base-script_name>.LOCK' is assumed.
|
||||
# -
|
||||
# -
|
||||
# - Example:
|
||||
# - CONFLICTING_SCRIPTS="
|
||||
# - /root/bin/monitoring/check_webservice_load.sh:CHECK_PROCESS_LIST
|
||||
# - /root/bin/monitoring/check_remote_websites.sh
|
||||
# - "
|
||||
# -
|
||||
# - Defaults to:
|
||||
# - CONFLICTING_SCRIPTS="/root/bin/monitoring/check_webservice_load.sh"
|
||||
# -
|
||||
#CONFLICTING_SCRIPTS=""
|
||||
|
||||
|
||||
# ---
|
||||
# - E-Mail settings for sending script messages
|
||||
# ---
|
||||
|
||||
# - company
|
||||
# -
|
||||
# - Example: company="O.OPEN"
|
||||
# -
|
||||
#company=""
|
||||
|
||||
# - sender_address
|
||||
# -
|
||||
# - Defaults to: sender_address="check_es_service@$(hostname -f)"
|
||||
# -
|
||||
#sender_address="check_es_service@$(hostname -f)"
|
||||
|
||||
# - content_type
|
||||
# -
|
||||
# - Defaults to: content_type='Content-Type: text/plain;\n charset="utf-8"'
|
||||
# -
|
||||
#content_type='Content-Type: text/plain;\n charset="utf-8"'
|
||||
|
||||
# - alert_email_addresses
|
||||
# -
|
||||
# - blank separated list of e-mail addresses
|
||||
#
|
||||
# - Example: alert_email_addresses="ckubu@oopen.de axel@warenform.net"
|
||||
# -
|
||||
#alert_email_addresses="ckubu@oopen.de"
|
||||
|
||||
Loading…
Reference in New Issue
Block a user