Lightning: Schema Precheck Failed when DB/Tables Not Created

[dsdashun]

Bug Report

Please answer these questions before submitting your issue. Thanks!

1. Minimal reproduce step (Required)

• Prepare a brand new TiDB using tiup playground
• Build a program to use the schema precheck item to check the source data

2. What did you expect to see? (Required)

The source data schema file can be used to get out the table structure. The schema check can be executed based on the schema file's table structure, and report the final result.

3. What did you see instead (Required)

Error occurs: check error: cannot read schema 'XXXX' from remote: get http://127.0.0.1:10080/schema/XXXX http status code != 200, message [schema:1049]Unknown database 'XXXX'

4. What is your TiDB version? (Required)

Latest master version

[dsdashun]

/component lightning

[dsdashun]

/severity moderate