sonic-buildimage/files/scripts/syncd.sh
Ying Xie 4abbe43463 [syncd] skip ledinit during syncd warm start (#2285)
* [syncd] skip ledinit during syncd warm start

Signed-off-by: Ying Xie <ying.xie@microsoft.com>
2018-11-21 17:56:19 -08:00

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3.7 KiB
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#!/bin/bash
SERVICE="syncd"
PEER="swss"
DEBUGLOG="/tmp/swss-syncd-debug.log"
LOCKFILE="/tmp/swss-syncd-lock"
function debug()
{
/bin/echo `date` "- $1" >> ${DEBUGLOG}
}
function lock_service_state_change()
{
debug "Locking ${LOCKFILE} from ${SERVICE} service"
exec {LOCKFD}>${LOCKFILE}
/usr/bin/flock -x ${LOCKFD}
trap "/usr/bin/flock -u ${LOCKFD}" 0 2 3 15
debug "Locked ${LOCKFILE} (${LOCKFD}) from ${SERVICE} service"
}
function unlock_service_state_change()
{
debug "Unlocking ${LOCKFILE} (${LOCKFD}) from ${SERVICE} service"
/usr/bin/flock -u ${LOCKFD}
}
function check_warm_boot()
{
SYSTEM_WARM_START=`/usr/bin/redis-cli -n 4 hget "WARM_RESTART|system" enable`
SERVICE_WARM_START=`/usr/bin/redis-cli -n 4 hget "WARM_RESTART|${SERVICE}" enable`
# SYSTEM_WARM_START could be empty, always make WARM_BOOT meaningful.
if [[ x"$SYSTEM_WARM_START" == x"true" ]] || [[ x"$SERVICE_WARM_START" == x"true" ]]; then
WARM_BOOT="true"
else
WARM_BOOT="false"
fi
}
function wait_for_database_service()
{
# Wait for redis server start before database clean
until [[ $(/usr/bin/docker exec database redis-cli ping | grep -c PONG) -gt 0 ]];
do sleep 1;
done
# Wait for configDB initialization
until [[ $(/usr/bin/docker exec database redis-cli -n 4 GET "CONFIG_DB_INITIALIZED") ]];
do sleep 1;
done
}
start() {
debug "Starting ${SERVICE} service..."
lock_service_state_change
mkdir -p /host/warmboot
wait_for_database_service
check_warm_boot
debug "Warm boot flag: ${SERVICE} ${WARM_BOOT}."
if [[ x"$WARM_BOOT" == x"true" ]]; then
# Leave a mark for syncd scripts running inside docker.
touch /host/warmboot/warm-starting
else
rm -f /host/warmboot/warm-starting
# Flush DB during non-warm start
/usr/bin/docker exec database redis-cli -n 1 FLUSHDB
# platform specific tasks
if [ x$sonic_asic_platform == x'mellanox' ]; then
export FAST_BOOT=1
/usr/bin/mst start
/usr/bin/mlnx-fw-upgrade.sh
/etc/init.d/sxdkernel start
/sbin/modprobe i2c-dev
elif [ x$sonic_asic_platform == x'cavium' ]; then
/etc/init.d/xpnet.sh start
fi
fi
# start service docker
/usr/bin/${SERVICE}.sh start
debug "Started ${SERVICE} service..."
unlock_service_state_change
/usr/bin/${SERVICE}.sh attach
}
stop() {
debug "Stopping ${SERVICE} service..."
lock_service_state_change
check_warm_boot
debug "Warm boot flag: ${SERVICE} ${WARM_BOOT}."
if [[ x"$WARM_BOOT" == x"true" ]]; then
TYPE=warm
else
TYPE=cold
fi
debug "${TYPE} shutdown syncd process ..."
/usr/bin/docker exec -i syncd /usr/bin/syncd_request_shutdown --${TYPE}
# wait until syncd quits gracefully
while docker top syncd | grep -q /usr/bin/syncd; do
sleep 0.1
done
/usr/bin/docker exec -i syncd /bin/sync
debug "Finished ${TYPE} shutdown syncd process ..."
/usr/bin/${SERVICE}.sh stop
debug "Stopped ${SERVICE} service..."
# if warm start enabled, don't stop peer service docker
if [[ x"$WARM_BOOT" != x"true" ]]; then
# platform specific tasks
if [ x$sonic_asic_platform == x'mellanox' ]; then
/etc/init.d/sxdkernel stop
/usr/bin/mst stop
elif [ x$sonic_asic_platform == x'cavium' ]; then
/etc/init.d/xpnet.sh stop
/etc/init.d/xpnet.sh start
fi
fi
unlock_service_state_change
}
case "$1" in
start|stop)
$1
;;
*)
echo "Usage: $0 {start|stop}"
exit 1
;;
esac