mirror of
https://github.com/Telecominfraproject/ols-nos.git
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41a9813018
- Why I did it To solve an issue with upgrade with fast-reboot including FW upgrade which has been introduced since moving to fast-reboot over warm-reboot infrastructure. As well, this introduces fast-reboot finalizing logic to determine fast-reboot is done. - How I did it Added logic to finalize-warmboot script to handle fast-reboot as well, this makes sense as using fast-reboot over warm-reboot this script will be invoked. The script will clear fast-reboot entry from state-db instead of previous implementation that relied on timer. The timer could expire in some scenarios between fast-reboot finished causing fallback to cold-reboot and possible crashes. As well this PR updates all services/scripts reading fast-reboot state-db entry to look for the updated value representing fast-reboot is active. - How to verify it Run fast-reboot and check that fast-reboot entry exists in state-db right after startup and being cleared as warm-reboot is finalized and not due to a timer.
104 lines
2.4 KiB
Bash
Executable File
104 lines
2.4 KiB
Bash
Executable File
#!/bin/bash
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function debug()
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{
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/usr/bin/logger $1
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/bin/echo `date` "- $1" >> ${DEBUGLOG}
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}
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function check_warm_boot()
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{
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SYSTEM_WARM_START=`$SONIC_DB_CLI STATE_DB hget "WARM_RESTART_ENABLE_TABLE|system" enable`
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SERVICE_WARM_START=`$SONIC_DB_CLI STATE_DB hget "WARM_RESTART_ENABLE_TABLE|${SERVICE}" enable`
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if [[ x"$SYSTEM_WARM_START" == x"true" ]] || [[ x"$SERVICE_WARM_START" == x"true" ]]; then
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WARM_BOOT="true"
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else
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WARM_BOOT="false"
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fi
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}
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function validate_restore_count()
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{
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if [[ x"$WARM_BOOT" == x"true" ]]; then
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RESTORE_COUNT=`$SONIC_DB_CLI STATE_DB hget "WARM_RESTART_TABLE|bgp" restore_count`
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# We have to make sure db data has not been flushed.
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if [[ -z "$RESTORE_COUNT" ]]; then
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WARM_BOOT="false"
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fi
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fi
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}
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function check_fast_boot ()
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{
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SYSTEM_FAST_REBOOT=`sonic-db-cli STATE_DB hget "FAST_RESTART_ENABLE_TABLE|system" enable`
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if [[ x"${SYSTEM_FAST_REBOOT}" == x"true" ]]; then
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FAST_BOOT="true"
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else
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FAST_BOOT="false"
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fi
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}
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start() {
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debug "Starting ${SERVICE}$DEV service..."
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check_warm_boot
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validate_restore_count
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check_fast_boot
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debug "Warm boot flag: ${SERVICE}$DEV ${WARM_BOOT}."
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debug "Fast boot flag: ${SERVICE}$DEV ${Fast_BOOT}."
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# start service docker
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/usr/bin/${SERVICE}.sh start $DEV
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debug "Started ${SERVICE}$DEV service..."
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}
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wait() {
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/usr/bin/${SERVICE}.sh wait $DEV
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}
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stop() {
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debug "Stopping ${SERVICE}$DEV service..."
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check_warm_boot
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check_fast_boot
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debug "Warm boot flag: ${SERVICE}$DEV ${WARM_BOOT}."
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debug "Fast boot flag: ${SERVICE}$DEV ${FAST_BOOT}."
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# Kill bgpd to start the bgp graceful restart procedure
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if [[ x"$WARM_BOOT" == x"true" ]] || [[ x"$FAST_BOOT" == x"true" ]]; then
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debug "Kill zebra first"
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/usr/bin/docker exec -i bgp pkill -9 zebra || [ $? == 1 ]
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/usr/bin/docker exec -i bgp pkill -9 bgpd || [ $? == 1 ]
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fi
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/usr/bin/${SERVICE}.sh stop $DEV
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debug "Stopped ${SERVICE}$DEV service..."
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}
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DEV=$2
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SERVICE="bgp"
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DEBUGLOG="/tmp/bgp-debug$DEV.log"
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NAMESPACE_PREFIX="asic"
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if [ "$DEV" ]; then
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NET_NS="$NAMESPACE_PREFIX$DEV" #name of the network namespace
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SONIC_DB_CLI="sonic-db-cli -n $NET_NS"
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else
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NET_NS=""
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SONIC_DB_CLI="sonic-db-cli"
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fi
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case "$1" in
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start|wait|stop)
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$1
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;;
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*)
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echo "Usage: $0 {start|wait|stop}"
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exit 1
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;;
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esac
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