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75c9a20c77
Sometime in VR ntpd would move time backward to keep sync with NTP server, which can result in false alarm of keepalived monitering process. This patch adds 3 strikes for keepalived process dead detection to avoid falsely shutdown keepalived process due to time adjustment for only once.
56 lines
1.9 KiB
Plaintext
Executable File
56 lines
1.9 KiB
Plaintext
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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STRIKE_FILE="[RROUTER_BIN_PATH]/keepalived.strikes"
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if [ -e [RROUTER_BIN_PATH]/keepalived.ts2 ]
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then
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lasttime=$(cat [RROUTER_BIN_PATH]/keepalived.ts2)
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thistime=$(cat [RROUTER_BIN_PATH]/keepalived.ts)
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diff=$(($thistime - $lasttime))
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s=0
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if [ $diff -lt 30 ]
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then
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if [ -e $STRIKE_FILE ]
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then
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s=`cat $STRIKE_FILE 2>/dev/null`
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fi
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s=$(($s+1))
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echo $s > $STRIKE_FILE
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else
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rm $STRIKE_FILE
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fi
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#3 strikes rule
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if [ $s -gt 2 ]
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then
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echo Keepalived process is dead! >> [RROUTER_LOG]
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[RROUTER_BIN_PATH]/services.sh stop >> [RROUTER_LOG] 2>&1
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[RROUTER_BIN_PATH]/disable_pubip.sh >> [RROUTER_LOG] 2>&1
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[RROUTER_BIN_PATH]/primary-backup.sh fault >> [RROUTER_LOG] 2>&1
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service keepalived stop >> [RROUTER_LOG] 2>&1
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service conntrackd stop >> [RROUTER_LOG] 2>&1
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pkill -9 keepalived >> [RROUTER_LOG] 2>&1
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pkill -9 conntrackd >> [RROUTER_LOG] 2>&1
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echo Status: FAULT \(keepalived process is dead\) >> [RROUTER_LOG]
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exit
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fi
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fi
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cp [RROUTER_BIN_PATH]/keepalived.ts [RROUTER_BIN_PATH]/keepalived.ts2
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