homework-jianmu/packaging/tools/startPre.sh

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#!/bin/bash
#
# if enable core dump, set start count to 3, disable core dump, set start count to 20.
# set -e
# set -x
serverName="taosd"
logDir="/var/log/taos"
taosd=/etc/systemd/system/${serverName}.service
line=$(grep StartLimitBurst ${taosd})
num=${line##*=}
#echo "burst num: ${num}"
startSeqFile=${logDir}/.startSeq
recordFile=${logDir}/.startRecord
startSeq=0
if [[ ! -e ${startSeqFile} ]]; then
startSeq=0
else
startSeq=$(cat ${startSeqFile})
fi
nextSeq=$(expr $startSeq + 1)
echo "${nextSeq}" >${startSeqFile}
curTime=$(date "+%Y-%m-%d %H:%M:%S")
echo "startSeq:${startSeq} startPre.sh exec ${curTime}, burstCnt:${num}" >>${recordFile}
coreFlag=$(ulimit -c)
echo "coreFlag: ${coreFlag}" >>${recordFile}
if [ ${coreFlag} = "0" ]; then
#echo "core is 0"
if [ ${num} != "20" ]; then
sed -i "s/^.*StartLimitBurst.*$/StartLimitBurst=20/" ${taosd}
systemctl daemon-reload
echo "modify burst count from ${num} to 20" >>${recordFile}
fi
fi
if [ ${coreFlag} = "unlimited" ]; then
#echo "core is unlimited"
if [ ${num} != "3" ]; then
sed -i "s/^.*StartLimitBurst.*$/StartLimitBurst=3/" ${taosd}
systemctl daemon-reload
echo "modify burst count from ${num} to 3" >>${recordFile}
fi
fi