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Warm reboot: Add support for swss docker warm restart #1982

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Merged
lguohan merged 1 commit into from
Aug 25, 2018
Merged

Warm reboot: Add support for swss docker warm restart #1982

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33 changes: 30 additions & 3 deletions files/scripts/swss.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -2,10 +2,29 @@

start() {
# Wait for redis server start before database clean
until [[ $(/usr/bin/docker exec database redis-cli ping | grep -c PONG) -gt 0 ]];
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

SYSTEM_WARM_START=`/usr/bin/docker exec database redis-cli -n 4 HGET "WARM_RESTART|system" enable`
SWSS_WARM_START=`/usr/bin/docker exec database redis-cli -n 4 HGET "WARM_RESTART|swss" enable`
# if warm start enabled, just do swss docker start.
# Don't flush DB or try to start other modules.
if [[ "$SYSTEM_WARM_START" == "true" ]] || [[ "$SWSS_WARM_START" == "true" ]]; then
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@lguohan lguohan Aug 24, 2018

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add x"$SYSTEM_WARM_START" == x"true" to avoid empty variable.

RESTART_COUNT=`redis-cli -n 6 hget "WARM_RESTART_TABLE|orchagent" restart_count`
# We have to make sure db data has not been flushed.
if [[ -n "$RESTART_COUNT" ]]; then
/usr/bin/swss.sh start
/usr/bin/swss.sh attach
return 0
fi
fi

# Flush DB
/usr/bin/docker exec database redis-cli -n 0 FLUSHDB
/usr/bin/docker exec database redis-cli -n 1 FLUSHDB
Expand All @@ -25,14 +44,22 @@ start() {
/etc/init.d/xpnet.sh start
fi

# start swss and syncd docker
/usr/bin/swss.sh start
# start swss and syncd docker
/usr/bin/swss.sh start
/usr/bin/syncd.sh start
/usr/bin/swss.sh attach
}

stop() {
/usr/bin/swss.sh stop

SYSTEM_WARM_START=`redis-cli -n 4 hget "WARM_RESTART|system" enable`
SWSS_WARM_START=`redis-cli -n 4 hget "WARM_RESTART|swss" enable`
# if warm start enabled, just stop swss docker, then return
if [[ "$SYSTEM_WARM_START" == "true" ]] || [[ "$SWSS_WARM_START" == "true" ]]; then
return 0
fi

/usr/bin/syncd.sh stop

# platform specific tasks
Expand Down