mycat连接不上mysql

ping <MySQL服务器IP>

<!-- schema.xml -->
<schema name="testdb" checkSQLschema="false" sqlMaxLimit="100">
    <table name="t_user" dataNode="dn1" rule="mod-long"/>
</schema>

<dataNode name="dn1" dataHost="dh1" database="testdb"/>

<dataHost name="dh1" maxCon="1000" minCon="10" balance="0"
          writeType="0" dbType="mysql" dbDriver="native" switchType="1" slaveThreshold="100">
    <heartbeat>select user()</heartbeat>
    <writeHost host="w1" url="192.168.1.100:3306" user="root" password="password"/>
</dataHost>

<!-- server.xml -->
<user name="mycat">
    <property name="password">password</property>
    <property name="schemas">testdb</property>
</user>

systemctl status mysql

systemctl start mysql

GRANT ALL PRIVILEGES ON *.* TO 'mycat'@'%' IDENTIFIED BY 'password' WITH GRANT OPTION;
FLUSH PRIVILEGES;

systemctl stop firewalld

firewall-cmd --zone=public --add-port=3306/tcp --permanent
firewall-cmd --reload