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fix: adapt wesql script for specify instance offline #696

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merged 5 commits into from
Jun 20, 2024
Merged

fix: adapt wesql script for specify instance offline #696

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f26cf6f
fix: adapt wesql script for specify instance offline
xuriwuyun Jun 18, 2024
e4d5570
do not create restore for wesql when scalein
xuriwuyun Jun 20, 2024
f5462ce
update registry
xuriwuyun Jun 20, 2024
d29c963
update setup
xuriwuyun Jun 20, 2024
00750a4
update
xuriwuyun Jun 20, 2024
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9 changes: 1 addition & 8 deletions addons/apecloud-mysql/scripts/pre-stop.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -66,14 +66,7 @@ leader=`cat /etc/annotations/leader`
idx=${KB_POD_NAME##*-}
current_component_replicas=`cat /etc/annotations/component-replicas`
echo "current replicas: $current_component_replicas" >> /data/mysql/.kb_pre_stop.log
if [ ! $idx -lt $current_component_replicas ] && [ $current_component_replicas -ne 0 ]; then
# if idx greater than or equal to current_component_replicas means the cluster's scaling in
# put .restore on pvc for next scaling out, if pvc not deleted
touch /data/mysql/data/.restore; sync
# set wegiht to 0 and switch leader before leader scaling in itself
set_my_weight_to_zero
switchover
elif [ $current_component_replicas -eq 0 ]; then
if [ $current_component_replicas -eq 0 ]; then
# stop, do nothing.
echo "stop, do nothing" >> /data/mysql/.kb_pre_stop.log
else
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69 changes: 35 additions & 34 deletions addons/apecloud-mysql/scripts/setup.sh
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Expand Up @@ -2,29 +2,42 @@

set -ex

get_replica_host() {
local id=$1

if [ -z "${REPLICATION_ENDPOINT}" ]; then
host="KB_${id}_HOSTNAME"
echo "${!host}"
else
endpoints=$(eval echo "${REPLICATION_ENDPOINT}" | tr ',' '\n')
for endpoint in ${endpoints}; do
host=$(eval echo "${endpoint}" | cut -d ':' -f 1)
ip=$(eval echo "${endpoint}" | cut -d ':' -f 2)
hostId=$(eval echo "${host}" | grep -oE "[0-9]+\$")
if [ "${id}" = "${hostId}" ]; then
echo "${ip}"
break
fi
done
get_hostname_suffix() {
IFS='.' read -ra fields <<< "$KB_POD_FQDN"
if [ "${#fields[@]}" -gt "2" ]; then
echo "${fields[1]}"
fi
}

get_cluster_members() {
local cluster_members=""
IFS=',' read -ra PODS <<< "$KB_POD_LIST"
for pod in "${PODS[@]}"; do
hostname=${pod}.${hostname_suffix}
cluster_members="${cluster_members};${hostname}:${MYSQL_CONSENSUS_PORT:-13306}"
done
echo "${cluster_members#;}"
}

get_pod_index() {
local pod_name="${1:?missing pod name}"
local pod_index=0

IFS=',' read -ra PODS <<< "$KB_POD_LIST"
for pod in "${PODS[@]}"; do
if [ "$pod" = "$pod_name" ]; then
break
fi
((pod_index++))
done

echo "$pod_index"
}

generate_cluster_info() {
local pod_name="${KB_POD_NAME:?missing pod name}"
local cluster_members=""
local hostname_suffix=$(get_hostname_suffix)

export MYSQL_PORT=${MYSQL_PORT:-3306}
export MYSQL_CONSENSUS_PORT=${MYSQL_CONSENSUS_PORT:-13306}
Expand All @@ -41,29 +54,17 @@ generate_cluster_info() {
fi
echo "KB_MYSQL_CLUSTER_UID=${KB_MYSQL_CLUSTER_UID}"

for ((i = 0; i < KB_REPLICA_COUNT; i++)); do
if [ $i -gt 0 ]; then
cluster_members="${cluster_members};"
fi

host="$(get_replica_host ${i})"
echo "${host:?missing member hostname}"
cluster_members="${cluster_members}${host}:${MYSQL_CONSENSUS_PORT:-13306}"

# compatiable with old version images
export KB_MYSQL_${i}_HOSTNAME=${host}
done
export KB_MYSQL_CLUSTER_MEMBERS="${cluster_members}"
export KB_MYSQL_CLUSTER_MEMBERS=`get_cluster_members`
echo "${KB_MYSQL_CLUSTER_MEMBERS:?missing cluster members}"

export KB_MYSQL_CLUSTER_MEMBER_INDEX=${pod_name##*-};
local pod_host=$(get_replica_host ${KB_MYSQL_CLUSTER_MEMBER_INDEX})
export KB_MYSQL_CLUSTER_MEMBER_INDEX=`get_pod_index $pod_name`
local pod_host=${pod_name}.${hostname_suffix}
export KB_MYSQL_CLUSTER_MEMBER_HOST=${pod_host:?missing current member hostname}

if [ -n "$KB_LEADER" ]; then
echo "KB_LEADER=${KB_LEADER}"

local leader_index=${KB_LEADER##*-}
local leader_host=$(get_replica_host ${leader_index})
local leader_host=$KB_LEADER.${hostname_suffix}
export KB_MYSQL_CLUSTER_LEADER_HOST=${leader_host:?missing leader hostname}

# compatiable with old version images
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2 changes: 1 addition & 1 deletion addons/apecloud-mysql/values.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -99,7 +99,7 @@ wesqlscale:
cell: "zone1"
image:
# if the value of wesqlscale.image.registry is not specified using `--set`, it will be set to the value of 'image.registry' by default
registry: ""
registry: infracreate-registry.cn-zhangjiakou.cr.aliyuncs.com
repository: apecloud/apecloud-mysql-scale
tag: "0.2.7"
pullPolicy: IfNotPresent
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