新特性解读 | MySQL 8.0.19 支持 DNS SRV
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Connector/Node.js
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Connector/C++
for i in `seq 4000 4002`; do
echo "Deploy mysql sandbox $i"
mysqlsh -- dba deploy-sandbox-instance $i --password=root
done
echo "Create innodb cluster..."
mysqlsh root@localhost:4000 -- dba create-cluster cluster01
mysqlsh root@localhost:4000 -- cluster add-instance --recoveryMethod=clone --password=root root@localhost:4001
mysqlsh root@localhost:4000 -- cluster add-instance --recoveryMethod=clone --password=root root@localhost:4002
for i in 6446 6556; do
echo "Bootstrap router $i"
mysqlrouter --bootstrap root@localhost:4000 --conf-use-gr-notifications -d router_$i --conf-base-port $i --name router_$i
sed -i 's/level = INFO/level = DEBUG/g router_$i/mysqlrouter.conf
sh router_$i/stop.sh
sh router_$i/start.sh
done
echo "Install consul..."
brew install consul
consul agent -dev &
echo "Services register..."
consul services register -name router -id router1 -port 6446 -tag rw
consul services register -name router -id router2 -port 6556 -tag rw
echo "Test dns srv..."
dig router.service.consul SRV -p 8600
;; QUESTION SECTION:
;router.service.consul. IN SRV
;; ANSWER SECTION:
router.service.consul. 0 IN SRV 1 1 6556 MBP.node.dc1.consul.
router.service.consul. 0 IN SRV 1 1 6446 MBP.node.dc1.consul.
;; ADDITIONAL SECTION:
MBP.node.dc1.consul. 0 IN A 127.0.0.1
MBP.node.dc1.consul. 0 IN TXT "consul-network-segment="
MBP.node.dc1.consul. 0 IN A 127.0.0.1
MBP.node.dc1.consul. 0 IN TXT "consul-network-segment="
echo "Install dnsmasq..."
brew install dnsmasq
echo 'server=/consul/127.0.0.1#8600' > /usr/local/etc/dnsmasq.d/consul
sudo brew services restart dnsmasq
echo "Test dns forwarding..."
dig router.service.consul SRV
pip install mysql-connector-python
import mysql.connector
cnx = mysql.connector.connect(user='root', password='root', database='mysql_innodb_cluster_metadata', host='router.service.consul', dns_srv=True)
cursor = cnx.cursor()
query = ("select instance_id from v2_this_instance")
cursor.execute(query)
for (instance_id) in cursor:
print("instance id: {}".format(instance_id))
cursor.close()
cnx.close()
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