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Re: control the order of service initialization in the Debian 9




Thank you for help me, but my problem persists.


I have already changed my file /etc/init.d/drbd

This is my /etc/init.d/drbd 

#!/bin/bash
#
# chkconfig: - 70 08
# description: Loads and unloads the drbd module
#
# Copyright 2001-2013 LINBIT
#
# Philipp Reisner, Lars Ellenberg
#
### BEGIN INIT INFO
# Provides: drbd
# Required-Start: $local_fs $network $syslog open-iscsi
# Required-Stop:  $local_fs $network $syslog open-iscsi
# Should-Start:   sshd multipathd
# Should-Stop:    sshd multipathd
# Default-Start:  2 3 4 5
# Default-Stop:   0 1 6
# X-Start-Before: heartbeat corosync
# X-Stop-After:   heartbeat corosync
# X-Interactive:  true
# Short-Description:    Control DRBD resources.
# Description:    Control all DRBD resources.
#       You SHOULD NOT enable this init script
#       when using a cluster manager such as Pacemaker.
#       Start will try to:
#         load the DRBD driver module,
#         configure (bring up as Secondary) all DRBD resources as described in
#         the config file, and promote those resources where the
#         "become-primary-on" config statement matches.
#       Stop will try to:
#         demote and unconfigure all DRBD resources described in the config
#         file, and remove the module.
### END INIT INFO

DEFAULTFILE="/etc/default/drbd"
DRBDADM="drbdadm"
DRBDSETUP="drbdsetup"
PROC_DRBD="/proc/drbd"
MODPROBE="/sbin/modprobe"
RMMOD="/sbin/rmmod"
UDEV_TIMEOUT=10
ADD_MOD_PARAM=""

PATH=/sbin:/bin

if [ -f $DEFAULTFILE ]; then
  . $DEFAULTFILE
fi

# we only use these two functions, define fallback versions of them ...
log_daemon_msg() { echo -n "${1:-}: ${2:-}"; }
log_end_msg() { echo "."; }
# ... and let the lsb override them, if it thinks it knows better.
if [ -f /lib/lsb/init-functions ]; then
    . /lib/lsb/init-functions
fi

assure_module_is_loaded()
{
    [ -e "$PROC_DRBD" ] && return

    $MODPROBE -s drbd $ADD_MOD_PARAM || {
        echo "Can not load the drbd module."$'\n'
        exit 5 # LSB for "not installed"
    }
    # tell klogd to reload module symbol information ...
    [ -e /var/run/klogd.pid ] && [ -x /sbin/klogd ] && /sbin/klogd -i
}

drbd_pretty_status()
{
        local proc_drbd=$1
        # add resource names
        if ! type column &> /dev/null ||
           ! type paste &> /dev/null ||
           ! type join &> /dev/null ||
           ! type sed &> /dev/null ||
           ! type tr &> /dev/null
        then
                cat "$proc_drbd"
                return
        fi
        sed -e '2q' < "$proc_drbd"
        sed_script=$(
                i=0;
                _sh_status_process() {
                        let i++ ;
                        stacked=${_stacked_on:+"^^${_stacked_on_minor:-${_stacked_on//[!a-zA-Z0-9_ -]/_}}"}
                        printf "s|^ *%u:|%6u\t&%s%s|\n" \
                                $_minor $i \
                                "${_res_name//[!a-zA-Z0-9_ -]/_}" "$stacked"
                };
                eval "$(drbdadm sh-status)" )

        p() {
                sed -e "1,2d" \
                      -e "$sed_script" \
                      -e '/^ *[0-9]\+: cs:Unconfigured/d;' \
                      -e 's/^\(.* cs:.*[^ ]\)   \([rs]...\)$/\1 - \2/g' \
                      -e 's/^\(.* \)cs:\([^ ]* \)st:\([^ ]* \)ds:\([^ ]*\)/\1\2\3\4/' \
                      -e 's/^\(.* \)cs:\([^ ]* \)ro:\([^ ]* \)ds:\([^ ]*\)/\1\2\3\4/' \
                      -e 's/^\(.* \)cs:\([^ ]*\)$/\1\2/' \
                      -e 's/^ *[0-9]\+:/ x &??not-found??/;' \
                      -e '/^$/d;/ns:.*nr:.*dw:/d;/resync:/d;/act_log:/d;' \
                      -e 's/^\(.\[.*\)\(sync.ed:\)/... ... \2/;/^.finish:/d;' \
                      -e 's/^\(.[0-9 %]*oos:\)/... ... \1/' \
                      < "$proc_drbd" | tr -s '\t ' '  '
        }
        m() {
                join -1 2 -2 1 -o 1.1,2.2,2.3 \
                        <( ( drbdadm sh-dev all ; drbdadm -S sh-dev all ) | cat -n | sort -k2,2) \
                        <(sort < /proc/mounts ) |
                        sort -n | tr -s '\t ' '  ' | sed -e 's/^ *//'
        }
        # echo "=== p ==="
        # p
        # echo "=== m ==="
        # m
        # echo "========="
        # join -a1 <(p|sort) <(m|sort)
        # echo "========="
        (
        echo m:res cs ro ds p mounted fstype
        join -a1 <(p|sort) <(m|sort) | cut -d' ' -f2-6,8- | sort -k1,1n -k2,2
        ) | column -t
}

# Try to settle regardless of udev version or presence,
# so "/etc/init.d/drbd stop" is able to rmmod, without interfering
# temporary module references caused by udev scanning the devices.
# But don't wait too long.
_udev_settle()
{
        if udevadm version ; then
                # ok, we have udevadm, use it.
                udevadm settle --timeout=5
        else
                # if udevsettle is not there,
                # no matter.
                udevsettle --timeout=5
        fi
}

run_hook()
{
        n="hook_$1"
        if t=$(type -t "$n") && [[ "$t" == "function" ]] ; then
                shift
                "$n" "$@"
        fi
}

case "$1" in
    start)
        # no module, no DRBD.
        assure_module_is_loaded

        # Just in case drbdadm want to display any errors in the configuration
        # file, or we need to ask the user about registering this installation
        # at http://usage.drbd.org, we call drbdadm here without any IO
        # redirection.
        # If "no op" has a non-zero exit code, the config is unusable,
        # and every other command will fail.
        out=$($DRBDADM sh-nop 2>&1); ex=$?
        [[ $ex = 127 ]] && exit 5 # LSB for "not installed"
        log_daemon_msg "Starting DRBD resources"
        if [[ $ex != 0 ]] ; then
            printf "\n%s\n" "$out" >&2
            log_end_msg 1
            exit 6 # LSB for "not configured"
        fi

        $DRBDADM adjust-with-progress all
        [[ $? -gt 1 ]] && exit 20

        # make sure udev has time to create the device files
        # FIXME this probably should, on platforms that have it,
        # use udevadm settle --timeout=X --exit-if-exists=$DEVICE
        for DEVICE in `$DRBDADM sh-dev all`; do
            UDEV_TIMEOUT_LOCAL=$UDEV_TIMEOUT
            while [ ! -e $DEVICE ] && [ $UDEV_TIMEOUT_LOCAL -gt 0 ] ; do
                sleep 1
                UDEV_TIMEOUT_LOCAL=$(( $UDEV_TIMEOUT_LOCAL-1 ))
            done
        done

        [ -d /var/lock/subsys ] && touch /var/lock/subsys/drbd  # for RedHat
        run_hook start_before-wait
        $DRBDADM wait-con-int # User interruptible version of wait-connect all
        run_hook start

        # Become primary if configured
        # Currently, this is necessary for drbd8
        # drbd9 supports automatic promote and removes the "sh-b-pri" command.
        $DRBDADM sh-b-pri all || true
        log_end_msg 0

        # Now handle stacked devices, if any
        STACKED_RESOURCES=""
        # no point trying stacking, if we don't have at least one primary.
        if grep -w Primary /proc/drbd &> /dev/null; then
            # heuristic: don't mess with dinosaurs # :-(
            if ! grep -Ee '\<drbddisk|drbdupper\>' /etc/ha.d/haresources &> /dev/null; then
                STACKED_RESOURCES=`$DRBDADM -S sh-resources`
            fi
        fi
        if [[ $STACKED_RESOURCES ]] ; then
            log_daemon_msg "Starting stacked DRBD resources"
            DEVICES=`$DRBDADM -S sh-dev all`
            $DRBDADM -S adjust-with-progress all
            if [[ $? -gt 1 ]] ; then
                log_end_msg 1
            else
                for DEVICE in $DEVICES; do
                    UDEV_TIMEOUT_LOCAL=$UDEV_TIMEOUT
                    while [ ! -e $DEVICE ] && [ $UDEV_TIMEOUT_LOCAL -gt 0 ] ; do
                        sleep 1
                        UDEV_TIMEOUT_LOCAL=$(( $UDEV_TIMEOUT_LOCAL-1 ))
                    done
                done
                $DRBDADM -S wait-con-int # User interruptible version of wait-connect all
                $DRBDADM -S sh-b-pri all || true
                log_end_msg 0
            fi
        fi

        ;;
    stop)
        $DRBDADM sh-nop
        [[ $? = 127 ]] && exit 5 # LSB for "not installed"
        log_daemon_msg "Stopping all DRBD resources"
        for try in 1 2; do
            if [ -e $PROC_DRBD ] ; then
                [[ $try = 2 ]] && echo "Retrying once..."
                # bypass drbdadm and drbd config file and everything,
                # to avoid leaving devices around that are not referenced by
                # the current config file, or in case the current config file
                # does not parse for some reason.
                for d in /dev/drbd* ; do
                        [ -L "$d" ] && continue
                        [ -b "$d" ] || continue
                        M=$(umount "$d" 2>&1)
                        case $M in
                        *" not mounted") :;;
                        *) echo "$M" >&2 ;;
                        esac
                done
                for res in $($DRBDADM --stacked sh-resources) $($DRBDADM sh-resources); do
                        $DRBDSETUP down "$res"
                done
                _udev_settle &> /dev/null
                if [ -d /sys/module/drbd/holders ]; then
                        (cd /sys/module/drbd/holders; for tr in *; do [ -d ${tr} ] && ${RMMOD} ${tr}; done)
                fi
                $RMMOD drbd && break
            fi
        done
        run_hook stop
        [ -f /var/lock/subsys/drbd ] && rm /var/lock/subsys/drbd
        log_end_msg 0
        ;;
    status)
        # NEEDS to be heartbeat friendly...
        # so: put some "OK" in the output.
        if [ -e $PROC_DRBD ]; then
            echo "drbd driver loaded OK; device status:"
            drbd_pretty_status $PROC_DRBD 2>/dev/null
            exit 0
        else
            echo >&2 "drbd not loaded"
            exit 3
        fi
        ;;
    reload)
        $DRBDADM sh-nop
        [[ $? = 127 ]] && exit 5 # LSB for "not installed"
        log_daemon_msg  "Reloading DRBD configuration"
        $DRBDADM adjust all
        run_hook reload
        log_end_msg 0
        ;;
    restart|force-reload)
        ( . $0 stop )
        ( . $0 start )
        ;;
    *)
        echo "Usage: /etc/init.d/drbd {start|stop|status|reload|restart|force-reload}"
        exit 1
        ;;
esac

exit 0
###################################################################################

Following my error in /var/log/syslog

Feb 21 19:39:32 bkp systemd[1]: dev-drbd0.device: Job dev-drbd0.device/start timed out.
Feb 21 19:39:32 bkp systemd[1]: Timed out waiting for device dev-drbd0.device.
Feb 21 19:39:32 bkp systemd[1]: Dependency failed for /vm-bacula.
Feb 21 19:39:32 bkp systemd[1]: Dependency failed for Remote File Systems.
Feb 21 19:39:32 bkp systemd[1]: remote-fs.target: Job remote-fs.target/start failed with result 'dependency'.
Feb 21 19:39:32 bkp systemd[1]: vm\x2dbacula.mount: Job vm\x2dbacula.mount/start failed with result 'dependency'.

Regards,

Márcio Bacci


Em qui, 21 de fev de 2019 às 15:30, Reco <recoverym4n@xxxxxxxxxxxx> escreveu:
        Hi.

On Thu, Feb 21, 2019 at 03:10:44PM -0300, Marcio Demetrio Bacci wrote:
> Hi,
>
> I need to control the order of service initialization in my Debian 9 Server.
>
> The problem is the following:
>
> I beliave that my DRBD service don't start because the iscsi doesn't ready.

Last time I've checked DRBD service did not start automatically at all.
Moreover, someone tried to be clever, and put the need of user
interaction into /etc/init.d/drbd in the form of "drbdadm
wait-con-int".
I admire the intention, but the result hardly usable if you do not have
an access to the console.

So, forcing iSCSI dependency may not do you any good.


> This way, I intend to change priority of DRBD initialization  to initialize
> after iscsi service.

See these lines at /etc/init.d/drbd?

# Required-Start: $local_fs $network $syslog
# Required-Stop:  $local_fs $network $syslog

Change them:

# Required-Start: $local_fs $network $syslog open-iscsi
# Required-Stop:  $local_fs $network $syslog open-iscsi

And invoke "systemctl daemon-reload".

Reco