#!/bin/sh # # This script is called to politely request that a resource be given up # to us. # # At the end of $TIMEOUT, we take it anyway. # # It could be that we already have taken it, in which case it should # do nothing. # # # set -x prefix=@prefix@ exec_prefix=@exec_prefix@ HA_DIR=@sysconfdir@/ha.d; export HA_DIR . $HA_DIR/shellfuncs # # This code is the "ask nicely" case for when we first start up a node. # The case of the other node failing or being dead when we start up # is handled by mach_down which invokes takegroup just like we do # except it never asks for permission. # # The nice_failback = yes ($HA_NICEFAILBACK) case coordinates things # so always know the other guy doesn't have the resources before we # get here, so we don't need to ever wait in that case... # # If no one else is up, then we set HA_DONTASK in the environment. # It is possible that the TIMEOUT case should be removed now... # This is a failsafe case, but it's kind of a dangerous failsafe # case... # TIMEOUT=1200 RESOURCE=$1 # # Do we already have this resource? # $HA_BIN/ResourceManager status $RESOURCE && exit 0 # # Now give our ip-request-message... # # "ip-request" Message type # ip-address IP address requested # DENY if we won't/can't # case $HA_DEBUG in [123458789]*) ha_log "debug: in $0 $*" ha_log "debug: dont_ask: $HA_DONTASK nice_failback: $HA_NICEFAILBACK";; esac # # The nice failback case only takes over from dead machines... # case $HA_NICEFAILBACK in yes) HA_DONTASK=yes;; esac CMD=ip-request case $HA_DONTASK in yes) # # Pretend the current owner gave it up peacefully # ha_clustermsg t=$CMD-resp dest=$HA_CURHOST ipaddr=$RESOURCE weown=yes ok=OK !MSG ;; *) : "Ask Nicely ;-)" ha_clustermsg t=$CMD ipaddr=$RESOURCE !MSG # NOTE! # The original dangerous failsafe takeover of resources # has been disabled!! exit 0 # Normally they will have already replied to us before we get here # and we will have already taken things over. This is to allow # for the case that they somehow never tell us to go ahead... # Heartbeat should kill us if it shuts down before we finish. # For that to work we can't go into the background... sleep $TIMEOUT $HA_BIN/ResourceManager status "$RESOURCE" || $HA_BIN/ResourceManager takegroup "$RESOURCE" ;; esac
