744 lines
21 KiB
Bash
Executable File
744 lines
21 KiB
Bash
Executable File
#!/bin/sh
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# Vars {{{
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readonly PROGNAME=$(basename "${0}")
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readonly PROGDIR=$(readlink -m $(dirname "${0}"))
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readonly ARGS="${*}"
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readonly NBARGS="${#}"
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## Test if DEBUG is already defined (by parent script,…)
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[ -z "${DEBUG}" ] && DEBUG=1
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# If output message should be displayed
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[ -z "${OUTPUT_MESSAGE}" ] && OUTPUT_MESSAGE=0
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# APT temp file to monitor
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readonly APT_TMP_FILE="/tmp/.apt.upgrade"
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# Maco temp file
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readonly MACO_LOCAL_DIR="/opt/maco"
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readonly MACO_TMP_FILE="${MACO_LOCAL_DIR}/.maco.upgrade"
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readonly MACO_TMP_URGENT_FILE="${MACO_LOCAL_DIR}/.maco.urgent.upgrade"
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# Maco status file
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readonly MACO_STATUS_FILE="/var/fr.univ-rennes1.ipr.maco.machinestate.txt"
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# Default sleep delay
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readonly SLEEP_DELAY_DEFAULT="15"
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## Colors
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readonly PURPLE='\033[1;35m'
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readonly RED='\033[0;31m'
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readonly RESET='\033[0m'
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readonly COLOR_DEBUG="${PURPLE}"
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# }}}
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usage() { # {{{
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cat <<- EOF
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usage: $PROGNAME [--help] [-d|-f|-h|-q|-s] [hostname]
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Try to enable all SGE queues of the current host (default),
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if no pending upgrades (Maco, APT) are present,
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or to the one passed as first argument (no upgrades checking).
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EXAMPLES :
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- Enable SGE's queue(s) of the current host
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${PROGNAME}
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- Enable SGE's queue(s) of "marvin.domain.tld" host
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${PROGNAME} marvin.domain.tld
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${PROGNAME} -h marvin.domain.tld
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- Wait 30 seconds after the start of sge_execd (default: ${SLEEP_DELAY_DEFAULT})
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${PROGNAME} -s 30
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OPTIONS :
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-d,--debug
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Enable debug messages.
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-f,--force
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Try to (re)enable a queue even if it was previously
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manually disabled (by a user) and avoid all checks
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(pending upgrades, running processes, files,…).
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--help
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Print this help message.
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-h,--host,--hostname SGE_HOST_TO_MANAGE
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Manage SGE's queue(s) of "SGE_HOST_TO_MANAGE" host.
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-q,--quiet
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Disable messages on standard output (except for error).
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-s,--sleep
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Set a different delay to wait after the sge_execd start
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(default: ${SLEEP_DELAY_DEFAULT}).
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EOF
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}
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# }}}
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debug_message() { # {{{
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local_debug_message="${1}"
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## Print message if DEBUG is enable (=0)
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[ "${DEBUG}" -eq "0" ] && printf '\e[1;35m%-6b\e[m\n' "DEBUG − ${PROGNAME} : ${local_debug_message}"
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return 0
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}
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# }}}
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message() { # {{{
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local_message="${1}"
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## Print message if OUTPUT_MESSAGE is enable (=0)
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[ "${OUTPUT_MESSAGE}" -eq "0" ] && printf '%b\n' "${local_message}"
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return 0
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}
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# }}}
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define_vars() { # {{{
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## If sge_hostname wasn't defined {{{
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if [ -z "${sge_hostname}" ]; then
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## Use local host for sge_hostname
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sge_hostname="$(hostname -f)"
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fi
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## }}}
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## If sleep_delay wasn't defined (argument) {{{
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if [ -z "${sleep_delay}" ]; then
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## Use default value
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readonly sleep_delay="${SLEEP_DELAY_DEFAULT}"
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fi
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## }}}
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## If the host to manage is the current one {{{
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if is_current_host "${sge_hostname}" ; then
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debug_message "define_vars − \
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${sge_hostname} is the current host."
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## Enable to verify if pending upgrades are present
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CHECK_UPGRADE="0"
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## Enable to watch if some files are present
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CHECK_FILE="0"
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## Enable to verify if upgrades are running
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CHECK_PROCESS="0"
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else ## In case of a remote host
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debug_message "define_vars − \
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${sge_hostname} is not the current host."
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## Force to (re)enable SGE queue(s) in any case
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FORCE_MODE="0"
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fi
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## }}}
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## If FORCE_MODE was defined and enabled {{{
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if [ -n "${FORCE_MODE}" ] && [ "${FORCE_MODE}" -eq "0" ]; then
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## Disable upgrade checking (remote host, asked behaviour,…)
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CHECK_UPGRADE="1"
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## Disable files monitoring
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CHECK_FILE="1"
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## Disable process checking (remote host, asked behaviour,…)
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CHECK_PROCESS="1"
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else
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## Ensure to define a value
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FORCE_MODE="1"
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fi
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## }}}
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## Get all queues name {{{
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sge_queues_name="$(qhost -h "${sge_hostname:=/dev/null}" -q -xml \
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| grep "queue name" \
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| cut -d"'" -f2 )"
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sge_queues_name_print="$(qhost -h "${sge_hostname:=/dev/null}" -q -xml \
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| grep "queue name" \
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| cut -d"'" -f2 \
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| tr -s '\n' ' ' )"
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## }}}
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## List of process pattern to monitor {{{
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maco_proc_pattern="(/opt/maco/bin/maco.autoupdate.sh)"
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apt_proc_pattern="(aptitude.*full-upgrade|/usr/bin/dpkg.*--configure|dpkg-deb|/bin/sh /usr/lib/needrestart/dpkg-status)"
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sge_proc_pattern="(/usr/lib/gridengine/sge_execd)"
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## }}}
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## List of files to monitor {{{
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file_nologin_path="/etc/nologin"
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cluster_dir="/opt/ipr/cluster"
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sge_queue_flag_pattern="${cluster_dir}/.sge.*.disable"
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## }}}
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## Script used to disable SGE queue(s)
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sge_disable_host_queue_script="${PROGDIR}/sge.disable.host.queue.sh"
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}
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# }}}
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is_sge_host() { # {{{
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## Check if SGE commands (qconf) are available
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if [ "$(command -v qconf)" ]; then
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debug_message "is_sge_host − \
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SGE seems present on this host."
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### And verify if the host is fully configured as a submit host
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if qconf -ss 2>/dev/null | grep --word-regexp --quiet $(hostname -f); then
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debug_message "is_sge_host − \
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The host seems configured as a SGE submit host."
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return_is_sge_host="0"
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else
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return_is_sge_host="1"
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debug_message "is_sge_host − \
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This host is not yet configured as a SGE submit host."
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fi
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else
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return_is_sge_host="1"
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debug_message "is_sge_host − \
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SGE is not present on this host."
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fi
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return "${return_is_sge_host}"
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}
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# }}}
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is_sge_master_available() { # {{{
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## Check with Netcat if SGE master (sge_qmaster) is reachable from this host.
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### -z: Only scan for listening daemons, without sending any data to them.
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### -w 10: Timeout the test after 10 seconds.
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if nc -z -w 10 "${sge_master_uri}" "${sge_master_port}"; then
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return_is_sge_master_available="0"
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debug_message "is_sge_master_available − \
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SGE Master (${sge_master_uri}:${sge_master_port}) is reachable from this host."
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else
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return_is_sge_master_available="1"
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debug_message "is_sge_master_available − \
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SGE Master (${sge_master_uri}:${sge_master_port}) is not reachable from this host."
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fi
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return "${return_is_sge_master_available}"
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}
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# }}}
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is_current_host() { # {{{
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local_current_host="${1}"
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local_current_fqdn=$(hostname -f)
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## Test if the sge_host to manage is the current host
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if [ "${local_current_host}" = "${local_current_fqdn}" ]; then
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local_current_host_return="0"
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else
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local_current_host_return="1"
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fi
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return "${local_current_host_return}"
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}
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# }}}
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is_apt_upgrade_present() { # {{{
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## No pending upgrade by default
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return_apt_upgrade_present="1"
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### Check if temp APT upgrade file exists
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if [ -f "${APT_TMP_FILE}" ]; then
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return_apt_upgrade_present="0"
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debug_message "is_apt_upgrade_absent − \
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APT upgrade seems available for this system."
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else
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return_apt_upgrade_present="1"
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debug_message "is_apt_upgrade_absent − \
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NO APT upgrade available for this system."
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fi
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return "${return_apt_upgrade_present}"
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}
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# }}}
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is_maco_upgrade_present() { # {{{
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## No pending upgrades by default
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return_maco_upgrade_present="1"
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## Check if temp Maco upgrade file is present
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if [ -f "${MACO_TMP_FILE}" ]; then
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return_maco_upgrade_present="0"
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debug_message "is_maco_upgrade_present − \
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Maco upgrade seems available."
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## Check if temp Maco urgent upgrade file is present
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elif [ -f "${MACO_TMP_URGENT_FILE}" ]; then
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return_maco_upgrade_present="0"
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debug_message "is_maco_upgrade_present − \
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Maco urgent upgrade seems available."
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else
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debug_message "is_maco_upgrade_present − \
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No Maco upgrade require."
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fi
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return "${return_maco_upgrade_present}"
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}
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# }}}
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is_maco_status_ok() { # {{{
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## Maco status not ok by default
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return_maco_status_ok="1"
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## Check if Maco status file is present
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if [ -f "${MACO_STATUS_FILE}" ]; then
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debug_message "is_maco_status_ok − \
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Maco status file (${MACO_STATUS_FILE}) exists."
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local_maco_status=$(grep --max-count=1 -- MacoStatus "${MACO_STATUS_FILE}" | cut --delimiter="=" --fields=2)
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## Check current Maco status
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if [ "${local_maco_status}" = "last-update-succeeded" ]; then
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debug_message "is_maco_status_ok − \
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Last Maco upgrade succeed (${local_maco_status})."
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return_maco_status_ok="0"
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else
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debug_message "is_maco_status_ok − \
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Maco require upgrade/maintenance (current state: ${local_maco_status})."
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fi
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else
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debug_message "is_maco_status_ok − \
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Maco status file (${MACO_STATUS_FILE}) doesn't exists."
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fi
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return "${return_maco_status_ok}"
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}
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# }}}
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is_proc_running() { # {{{
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local_proc_pattern="${1}"
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local_count_proc_pattern="$(pgrep -f -- "${local_proc_pattern}" | wc -l)"
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case "${local_count_proc_pattern}" in
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0 ) ## No procs related to this pattern are running
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return_proc_running="1"
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;;
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* ) ## At least one proc seems running
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return_proc_running="0"
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;;
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esac
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## Simple debug message to valid current variables
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debug_message "is_proc_running − \
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procs running (with the pattern: ${RED}${local_proc_pattern}${COLOR_DEBUG}) on the current host: ${RED}${local_count_proc_pattern}${COLOR_DEBUG}."
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return "${return_proc_running}"
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}
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# }}}
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is_proc_absent() { # {{{
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local_proc_pattern="${1}"
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## Proc is absent by default
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return_proc_absent="0"
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local_count_proc_pattern="$(pgrep -f -- "${local_proc_pattern}" | wc -l)"
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case "${local_count_proc_pattern}" in
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0 ) ## No procs related to this pattern are running
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return_proc_absent="0"
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;;
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* ) ## At least one proc seems running
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return_proc_absent="1"
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;;
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esac
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## Simple debug message to valid current variables
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debug_message "is_proc_absent − \
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procs running (with the pattern: ${RED}${local_proc_pattern}${COLOR_DEBUG}) on the current host: ${RED}${local_count_proc_pattern}${COLOR_DEBUG}."
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return "${return_proc_absent}"
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}
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# }}}
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is_file_present() { # {{{
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local_file_present="${1}"
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## File doesn't exist by default
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return_is_file_present="1"
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### Check if the file exists
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# shellcheck disable=SC2086
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if find ${local_file_present} > /dev/null 2>&1; then
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return_is_file_present="0"
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debug_message "is_file_present − \
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The file ${RED}${local_file_present}${COLOR_DEBUG} exists."
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else
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return_is_file_present="1"
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debug_message "is_file_present − \
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The file ${RED}${local_file_present}${COLOR_DEBUG} doesn't exist."
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fi
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return "${return_is_file_present}"
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}
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# }}}
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is_file_absent() { # {{{
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local_file_absent="${1}"
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## File exists by default
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return_is_file_absent="1"
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### Check if the file exists
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# shellcheck disable=SC2086
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if find ${local_file_absent} > /dev/null 2>&1; then
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return_is_file_absent="1"
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debug_message "is_file_absent − \
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The file ${RED}${local_file_absent}${COLOR_DEBUG} exists."
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else
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return_is_file_absent="0"
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debug_message "is_file_absent − \
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The file ${RED}${local_file_absent}${COLOR_DEBUG} doesn't exist."
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fi
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return "${return_is_file_absent}"
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}
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# }}}
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is_queue_enable() { # {{{
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local_queue_enable_hostname="${1}"
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local_queue_enable_name="${2}"
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## List all queues with 'disable' state and filter to the expected queue name
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## with a fake_user to avoid pending jobs for this queue
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### And count returned lines
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local_queue_enable_test=$(qstat -f -qs d -q "${local_queue_enable_name:=/dev/null}@${local_queue_enable_hostname:=/dev/null}" -u fake_user \
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| wc -l)
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case "${local_queue_enable_test}" in
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0 ) ## No result so the queue is enable
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local_sge_queue_state="enable"
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return_queue_enable="0"
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;;
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3 ) ## Results (header + queue name) so the queue is disable
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local_sge_queue_state="disable"
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return_queue_enable="1"
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;;
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* ) ## Unexpected result
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printf '%b\n' "${RED}Not able to determine the state of ${local_sge_queue_name:=/dev/null}@${local_queue_enable_hostname:=/dev/null} queue (command return ${local_queue_enable_test} lines).${RESET}"
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exit 2
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;;
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esac
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## Simple debug message to valid current variables
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debug_message "is_queue_enable − \
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SGE queue: ${RED}${local_queue_enable_name:=/dev/null}${COLOR_DEBUG} \
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state is: ${RED}${local_sge_queue_state:=/dev/null}${COLOR_DEBUG}."
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return "${return_queue_enable}"
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}
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# }}}
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is_queue_disable() { # {{{
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local_queue_disable_hostname="${1}"
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local_queue_disable_name="${2}"
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## List all queues with 'disable' state and filter to the expected queue name
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## add a fake_user to avoid pending jobs for this queue
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### And count returned lines
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local_queue_disable_test=$(qstat -f -qs d -q "${local_queue_disable_name:=/dev/null}@${local_queue_disable_hostname:=/dev/null}" -u fake_user \
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| wc -l)
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case "${local_queue_disable_test}" in
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0 ) ## No result so the queue is enable
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local_sge_queue_state="enable"
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return_queue_disable="1"
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## Ensure to remove any previously setted file
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# shellcheck disable=SC2086
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find ${sge_queue_flag_file} -delete
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;;
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3 ) ## Results (header + queue name) so the queue is disable
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local_sge_queue_state="disable"
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return_queue_disable="0"
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;;
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* ) ## Unexpected result
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printf '%b\n' "${RED}Not able to determine the state of ${local_queue_disable_name:=/dev/null}@${local_queue_disable_hostname:=/dev/null} queue (command return ${local_queue_disable_test} lines).${RESET}"
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exit 3
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;;
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esac
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## Simple debug message to valid current variables
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debug_message "is_queue_disable − \
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SGE queue: ${RED}${local_queue_disable_name:=/dev/null}${COLOR_DEBUG} \
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state is: ${RED}${local_sge_queue_state:=/dev/null}${COLOR_DEBUG}."
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return "${return_queue_disable}"
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}
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# }}}
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is_all_queue_enable() { # {{{
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local_all_queue_enable_hostname="${1}"
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local_all_queue_enable_name="${2}"
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## By default, all queues are enable
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return_all_queue_enable="0"
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## Test all queues one by one
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for loop_enable_queue in ${local_all_queue_enable_name}; do
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### If a queue is not enable
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#### Change the return value
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is_queue_enable "${local_all_queue_enable_hostname}" "${loop_enable_queue}" \
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|| return_all_queue_enable="1"
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done
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return "${return_all_queue_enable}"
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}
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# }}}
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enable_sge_queue() { # {{{
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local_sge_hostname="${1}"
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local_sge_queue_name="${2}"
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## If the queue was previously disabled by another script OR if FORCE_MODE is enable
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if [ -f "${sge_queue_flag_file}" ] || [ "${FORCE_MODE}" -eq "0" ]; then
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debug_message "enable_sge_queue − \
|
||
Previously disabled by a script (or FORCE is enable), try to enable SGE queue: ${RED}${local_sge_queue_name:=/dev/null}@${local_sge_hostname:=/dev/null}${COLOR_DEBUG}."
|
||
## SGE command to enable the queue
|
||
qmod --enable "${local_sge_queue_name}@${local_sge_hostname}" > /dev/null \
|
||
&& message "Enable SGE queue: ${RED}${local_sge_queue_name:=/dev/null}@${local_sge_hostname:=/dev/null}${RESET}" \
|
||
&& return_enable_queue="${?}"
|
||
else
|
||
message "SGE queue: ${RED}${local_sge_queue_name:=/dev/null}@${local_sge_hostname:=/dev/null}${RESET} was manually disabled, please re-enable it ${RED}manually${RESET} (or use --force option)."
|
||
return_enable_queue="1"
|
||
fi
|
||
|
||
return "${return_enable_queue}"
|
||
|
||
}
|
||
# }}}
|
||
main() { # {{{
|
||
|
||
## Test if SGE Master is reachable {{{
|
||
### If sge_master_uri wasn't defined (environment variable,…) {{{
|
||
if [ -z "${sge_master_uri}" ]; then
|
||
## Get SGE master from current configuration
|
||
sge_master_uri=$(grep --max-count=1 -- "" /var/lib/gridengine/default/common/act_qmaster 2>/dev/null || echo "localhost")
|
||
fi
|
||
### }}}
|
||
### If sge_master_port wasn't defined (environment variable,…) {{{
|
||
if [ -z "${sge_master_port}" ]; then
|
||
## Use local host for sge_master_port
|
||
sge_master_port="6444"
|
||
fi
|
||
### }}}
|
||
|
||
### If SGE Master is not reachable from this host {{{
|
||
#### Exit
|
||
is_sge_master_available \
|
||
|| exit 0
|
||
### }}}
|
||
## }}}
|
||
|
||
## If SGE is not yet available on this host {{{
|
||
### Exit
|
||
is_sge_host \
|
||
|| exit 0
|
||
## }}}
|
||
|
||
## Define all vars according the selected options
|
||
define_vars
|
||
|
||
## If we need to watch for processes
|
||
if [ "${CHECK_PROCESS}" -eq "0" ]; then
|
||
|
||
## If nothing related to SGE is currently running {{{
|
||
### First ensure that SGE queue(s) are really disable
|
||
### Wait few seconds
|
||
### Try to start the SGE execd systemd service
|
||
### Wait few seconds
|
||
is_proc_absent "${sge_proc_pattern}" \
|
||
&& sh "${sge_disable_host_queue_script}" \
|
||
&& sleep "${sleep_delay}" \
|
||
&& systemctl --quiet start sge_execd.service > /dev/null 2>&1 \
|
||
&& sleep "${sleep_delay}"
|
||
## }}}
|
||
## If anything related to SGE is still absent from the system {{{
|
||
### Exit with error if the service can't start
|
||
is_proc_absent "${sge_proc_pattern}" \
|
||
&& exit 4
|
||
## }}}
|
||
fi
|
||
|
||
## If we need to watch for upgrades
|
||
if [ "${CHECK_UPGRADE}" -eq "0" ]; then
|
||
## If APT package upgrade is available {{{
|
||
### Exit (wait for APT upgrade to be applied)
|
||
is_apt_upgrade_present \
|
||
&& exit 0
|
||
## }}}
|
||
|
||
## If Maco upgrade is present {{{
|
||
### Exit (wait for Maco upgrade to be applied)
|
||
is_maco_upgrade_present \
|
||
&& exit 0
|
||
## }}}
|
||
fi
|
||
|
||
## If Maco status is ok, CONTINUE {{{
|
||
### Else Exit (wait for upgrade/maintenance)
|
||
is_maco_status_ok \
|
||
|| exit 0
|
||
## }}}
|
||
|
||
## If we need to watch for processes
|
||
if [ "${CHECK_PROCESS}" -eq "0" ]; then
|
||
## If anything related to APT is currently running {{{
|
||
### Exit
|
||
is_proc_running "${apt_proc_pattern}" \
|
||
&& exit 0
|
||
## }}}
|
||
|
||
## If anything related to maco is currently running {{{
|
||
### Exit
|
||
is_proc_running "${maco_proc_pattern}" \
|
||
&& exit 0
|
||
## }}}
|
||
fi
|
||
|
||
## If we need to watch files
|
||
if [ "${CHECK_FILE}" -eq "0" ]; then
|
||
## If nologin file exist (error on upgrade,…) {{{
|
||
### Exit
|
||
is_file_present "${file_nologin_path}" \
|
||
&& exit 0
|
||
## }}}
|
||
|
||
## If all SGE queue(s) were manually disabled (not any flag file) {{{
|
||
### Exit
|
||
is_file_absent "${sge_queue_flag_pattern}" \
|
||
&& exit 0
|
||
## }}}
|
||
fi
|
||
|
||
## Simple debug message with color to valid current variables
|
||
debug_message "main − Try to manage \
|
||
SGE queue(s): ${RED}${sge_queues_name_print:=/dev/null}${COLOR_DEBUG}\
|
||
for host: ${RED}${sge_hostname:=/dev/null}${COLOR_DEBUG}."
|
||
|
||
## If the queue(s) are already enable {{{
|
||
### Ensure to remove any potential flag file
|
||
# shellcheck disable=SC2086
|
||
### Exit
|
||
is_all_queue_enable "${sge_hostname}" "${sge_queues_name}" \
|
||
&& find ${sge_queue_flag_pattern} -delete \
|
||
&& exit 0
|
||
## }}}
|
||
|
||
## Test all queues one by one
|
||
for loop_queue in ${sge_queues_name}; do
|
||
|
||
## File previously set if the queue was disabled by a script
|
||
## "automatically disabled" for an upgrade
|
||
sge_queue_flag_file="${cluster_dir}/.sge.${loop_queue}.disable"
|
||
|
||
## If the queue is disable {{{
|
||
### Try to enable it
|
||
is_queue_disable "${sge_hostname}" "${loop_queue}" \
|
||
&& enable_sge_queue "${sge_hostname}" "${loop_queue}"
|
||
## }}}
|
||
|
||
## Don't consider manually disabled queue as an error except if FORCE_MODE was specified {{{
|
||
if [ -f "${sge_queue_flag_file}" ] || [ "${FORCE_MODE}" -eq "0" ]; then
|
||
## If the queue is still disable
|
||
### Exit with error
|
||
is_queue_disable "${sge_hostname}" "${loop_queue}" \
|
||
&& printf '%b\n' "${RED}ERROR ${loop_queue}@${sge_hostname} is still disable.${RESET}" \
|
||
&& exit 5
|
||
fi
|
||
## }}}
|
||
|
||
done
|
||
|
||
}
|
||
# }}}
|
||
|
||
# Manage arguments # {{{
|
||
# This code can't be in a function due to arguments
|
||
|
||
if [ ! "${NBARGS}" -eq "0" ]; then
|
||
|
||
manage_arg="0"
|
||
|
||
## If the first argument is not an option
|
||
if ! printf -- '%s' "${1}" | grep -q -E -- "^-+";
|
||
then
|
||
## Use this argument for sge_hostname
|
||
sge_hostname="${1}"
|
||
|
||
## Switch to the next argument
|
||
shift
|
||
manage_arg=$((manage_arg+1))
|
||
fi
|
||
|
||
# Parse all options (start with a "-") one by one
|
||
while printf -- '%s' "${1}" | grep -q -E -- "^-+"; do
|
||
|
||
case "${1}" in
|
||
-d|--debug ) ## debug
|
||
DEBUG=0
|
||
;;
|
||
-f|--force ) ## Force to enable SGE queue
|
||
FORCE_MODE=0
|
||
;;
|
||
--help ) ## help
|
||
usage
|
||
## Exit after help informations
|
||
exit 0
|
||
;;
|
||
-h|--host|--hostname ) ## Specify a different host to manage
|
||
## Move to the next argument
|
||
shift
|
||
## Override previous definition of sge_hostname
|
||
sge_hostname="${1}"
|
||
;;
|
||
-q|--quiet ) ## Silent mode
|
||
## Avoid to display any message on standard output
|
||
OUTPUT_MESSAGE=1
|
||
;;
|
||
-- ) ## End of options list
|
||
## End the while loop
|
||
break
|
||
;;
|
||
* ) ## unknow option
|
||
printf '%b\n' "${RED}Invalid option: ${1}${RESET}"
|
||
printf '%b\n' "---"
|
||
usage
|
||
exit 1
|
||
;;
|
||
esac
|
||
|
||
debug_message "Arguments management − \
|
||
${RED}${1}${COLOR_DEBUG} option managed."
|
||
|
||
## Move to the next argument
|
||
shift
|
||
manage_arg=$((manage_arg+1))
|
||
|
||
done
|
||
|
||
debug_message "Arguments management − \
|
||
${RED}${manage_arg}${COLOR_DEBUG} argument(s) successfully managed."
|
||
else
|
||
debug_message "Arguments management − \
|
||
No arguments/options to manage."
|
||
fi
|
||
|
||
# }}}
|
||
|
||
main
|
||
|
||
exit 0
|