Attachment 925103 Details for Bug 1128051 – ha script to kill & wait for cluster

ha script to kill & wait for cluster

ha (text/plain), 2.28 KB, created by Alan Conway on 2014-08-08 07:37:21 UTC

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Creator: Alan Conway

Created: 2014-08-08 07:37:21 UTC

Size: 2.28 KB

patch

obsolete

>#!/bin/bash
>#
># HA commands for managing a cluster.
>#
>
># Configuration
>VIRTUAL_IP=20.0.20.200
>NODES="20.0.10.33 20.0.10.34 20.0.10.35"
>PRIMARY_SERVICE=qpidd-primary-service
>
>NODES_A=($NODES)
>NODE0=${NODES_A[0]}
>NODE_COUNT=${#NODES_A[@]}
>
># Run ha_stat and compare the output to the content of file $1.
># If the same, return 1, if different replace $1 with the new status
># and return 0
>ha_status_change() {
>    stat1=$1			# File containing previous status
>    stat2=$(mktemp)
>    ha_stat &> $stat2
>    RET=1
>    if ! diff -q $stat1 $stat2 &> /dev/null; then
>	cp $stat2 $stat1
>	RET=0
>    fi
>    rm $stat2
>    return $RET
>}
>
>ha_stat() {
>    while getopts "cq" opt; do
>	case $opt in
>	    c) ssh root@$NODE0 clustat; echo;;
>	    ?) return 1;;
>	esac
>    done
>    shift $((OPTIND - 1))
>    for node in $NODES; do
>	echo $node $(qpid-ha -b $node status)
>    done
>}
>
>ha_wait() {
>    local TEST=true TIMEOUT=60
>    local usage="ha wait [N]
>Wait for at least N brokers to be in active or ready state.
>If no N specified wait for all brokers.
>-a : wait for an active broker
>-p : print number of active brokers
>-t TIMEOUT: give up after TIMEOUT seconds (default $TIMEOUT)"
>    while getopts "apt:" opt; do
>	case $opt in
>	    a) TEST="grep -q active";;
>	    p) PRINT=1;;
>	    t) TIMEOUT=$OPTARG;;
>	    ?) echo "$usage"; return 1;;
>	esac
>    done
>    shift $((OPTIND - 1))
>    N=${1:-$NODE_COUNT}
>    stat=$(mktemp)
>    ha_stat &> $stat
>    date; cat 1>&2 $stat
>    start=$(date +%s)
>    until [ $(egrep '(active|ready)' $stat | wc -l) -ge $N ] && $TEST $stat; do
>	while ! ha_status_change $stat; do
>	    sleep .01;
>	    now=$(date +%s)
>	    [ $((now-start)) -gt $TIMEOUT ] && {
>		cat 1>&2 $stat;
>		echo ha_wait timed out 1>&2;
>		return 1;
>	    }
>	done
>	date; cat 1>&2 $stat
>    done
>    echo Waited $(($(date +%s) - start)) seconds. 1>&2
>    test "$PRINT" && egrep '(active|ready)' $stat | wc -l # Print the number of ready nodes
>    rm $stat
>    return 0
>}
>
>ha_primary() {
>    set -o pipefail
>    ha stat | grep active | awk '{ print $1}'
>    set +o pipefail
>}
>
>ha_kill() {
>    SIG=-9
>    case $1 in
>	-*) SIG=$1; shift;;
>    esac
>    HOST=${1:-$(ha-primary)} || { echo "No primary"; return 1; }
>    echo Kill $HOST $(date)
>    ssh -lroot $HOST killall $SIG qpidd
>}
>
># Main
>if [ $(basename $0) = ha ]; then
>    CMD=$1; shift
>    "ha_$CMD" "$@"
>fi

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Attachments on bug 1128051: 925103 | 931976 | 932450 | 932785