IllegalStateException when import database configuration in Proxy

[RaigorJiang]

Bug Report

Which version of ShardingSphere did you use?

5.5.4-SNAPSHOT 1358c7b

Which project did you use? ShardingSphere-JDBC or ShardingSphere-Proxy?

ShardingSphere-Proxy

Expected behavior

Import database success

Actual behavior

Exception occurs

Reason analyze (If you can)

No

Steps to reproduce the behavior, such as: SQL to execute, sharding rule configuration, when exception occur etc.

1. Create logic database

create database sharding_db;

use sharding_db;

2. Register storage unit

REGISTER STORAGE UNIT ds_0 (
    URL="jdbc:mysql://127.0.0.1:3306/demo_ds_0?serverTimezone=Asia/Shanghai&characterEncoding=UTF-8&useSSL=false&allowPublicKeyRetrieval=true",
    USER="root",
    PASSWORD="123456",
    PROPERTIES("maximumPoolSize"=10)
);

3. Load single table

show unloaded single tables;

load single table *.*;

show single tables;

4. Export database configuration

export database configuration to file '/tmp/database-sharding-db.yaml';

5. Import database configuration

• Drop database first

use mysql;
drop database sharding_db;

• Import

import database configuration from file '/tmp/database-sharding-db.yaml';

• Error log in Proxy