ustcweizhou commented on issue #2458: CLOUDSTACK-10296: Find time different from last timestamp URL: https://github.com/apache/cloudstack/pull/2458#issuecomment-368760532 We met the issue several times on our production. the final change is ``` diff --git a/systemvm/patches/debian/config/opt/cloud/templates/check_heartbeat.sh.templ b/systemvm/patches/debian/config/opt/cloud/templates/check_heartbeat.sh.templ index 6a0d8a9..a8ddc7d 100755 --- a/systemvm/patches/debian/config/opt/cloud/templates/check_heartbeat.sh.templ +++ b/systemvm/patches/debian/config/opt/cloud/templates/check_heartbeat.sh.templ @@ -19,14 +19,29 @@ ROUTER_BIN_PATH=/ramdisk/rrouter ROUTER_LOG=${ROUTER_BIN_PATH}/keepalived.log STRIKE_FILE="$ROUTER_BIN_PATH/keepalived.strikes" +CHECKTIME_FILE="$ROUTER_BIN_PATH/keepalived.checktime" if [ -e $ROUTER_BIN_PATH/keepalived.ts2 ] then thistime=$(cat $ROUTER_BIN_PATH/keepalived.ts) lasttime=$(cat $ROUTER_BIN_PATH/keepalived.ts2) - diff=$(($lasttime - $thistime)) + diff=$(($thistime - $lasttime)) + lastcheck=0 + if [ -e $CHECKTIME_FILE ] + then + lastcheck=`cat $CHECKTIME_FILE 2>/dev/null` + fi + thischeck=$(date +%s) + checkdiff=$(($thischeck - $lastcheck)) + echo "thischeck: $thischeck, lastcheck: $lastcheck. this heartbeat: $thistime, last heartbeat: $lasttime, time diff: $diff" >> $ROUTER_LOG + if [ $checkdiff -ge 0 ] && [ $checkdiff -lt 30 ] + then + echo time duration after last check is less than 30 seconds, ignored >> $ROUTER_LOG + exit + fi + echo $thischeck > $CHECKTIME_FILE s=0 - if [ $diff -ge 10 ] + if [ $diff -lt 30 ] then if [ -e $STRIKE_FILE ] then ```
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