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136 lines
3.3 KiB
Bash
Executable File
136 lines
3.3 KiB
Bash
Executable File
#!/bin/bash
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# Licensed to the Apache Software Foundation (ASF) under one
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# or more contributor license agreements. See the NOTICE file
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# distributed with this work for additional information
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# regarding copyright ownership. The ASF licenses this file
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# to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance
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# with the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing,
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# software distributed under the License is distributed on an
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# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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# KIND, either express or implied. See the License for the
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# specific language governing permissions and limitations
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# under the License.
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help() {
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printf "Usage: $0
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-i nfs server ip
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-p nfs server path
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-m mount point
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-h host
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-u volume uuid list
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-t time on ms
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-d suspect time\n"
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exit 1
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}
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#set -x
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NfsSvrIP=
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NfsSvrPath=
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MountPoint=
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HostIP=
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UUIDList=
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MSTime=
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SuspectTime=
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while getopts 'i:p:m:u:t:h:d:' OPTION
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do
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case $OPTION in
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i)
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NfsSvrIP="$OPTARG"
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;;
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p)
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NfsSvrPath="$OPTARG"
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;;
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m)
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MountPoint="$OPTARG"
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;;
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h)
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HostIP="$OPTARG"
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;;
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u)
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UUIDList="$OPTARG"
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;;
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t)
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MSTime="$OPTARG"
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;;
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d)
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SuspectTime="$OPTARG"
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;;
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*)
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help
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;;
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esac
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done
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if [ -z "$NfsSvrIP" ]
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then
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exit 2
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fi
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if [ -z "$SuspectTime" ]
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then
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exit 2
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fi
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hbFile="$MountPoint/KVMHA/hb-$HostIP"
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acFile="$MountPoint/KVMHA/ac-$HostIP"
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# First check: heartbeat file
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now=$(date +%s)
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hb=$(cat $hbFile)
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diff=$(expr $now - $hb)
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if [ $diff -lt 61 ]
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then
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echo "=====> ALIVE <====="
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exit 0
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fi
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if [ -z "$UUIDList" ]
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then
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echo "=====> Considering host as DEAD due to empty UUIDList <======"
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exit 0
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fi
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# Second check: disk activity check
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cd $MountPoint
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latestUpdateTime=$(stat -c %Y $(echo $UUIDList | sed 's/,/ /g') 2> /dev/null | sort -nr | head -1)
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if [ ! -f $acFile ]; then
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echo "$SuspectTime:$latestUpdateTime:$MSTime" > $acFile
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if [[ $latestUpdateTime -gt $SuspectTime ]]; then
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echo "=====> ALIVE <====="
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else
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echo "=====> Considering host as DEAD due to file [$acFile] does not exists and condition [latestUpdateTime -gt SuspectTime] has not been satisfied. <======"
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fi
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else
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acTime=$(cat $acFile)
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arrTime=(${acTime//:/ })
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lastSuspectTime=${arrTime[0]}
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lastUpdateTime=${arrTime[1]}
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echo "$SuspectTime:$latestUpdateTime:$MSTime" > $acFile
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suspectTimeDiff=$(expr $SuspectTime - $lastSuspectTime)
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if [[ $suspectTimeDiff -lt 0 ]]; then
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if [[ $latestUpdateTime -gt $SuspectTime ]]; then
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echo "=====> ALIVE <====="
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else
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echo "=====> Considering host as DEAD due to file [$acFile] exist, condition [suspectTimeDiff -lt 0] was satisfied and [latestUpdateTime -gt SuspectTime] has not been satisfied. <======"
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fi
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else
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if [[ $latestUpdateTime -gt $lastUpdateTime ]]; then
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echo "=====> ALIVE <====="
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else
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echo "=====> Considering host as DEAD due to file [$acFile] exist and conditions [suspectTimeDiff -lt 0] and [latestUpdateTime -gt SuspectTime] have not been satisfied. <======"
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fi
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fi
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fi
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exit 0
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