Help Center/ MapReduce Service/ FAQs/ Client Usage/ What Should I Do If the Connection to the ClickHouse Server Fails and Error Code 516 Is Reported?
Updated on 2025-03-17 GMT+08:00
What Should I Do If the Connection to the ClickHouse Server Fails and Error Code 516 Is Reported?
Symptom
When the clickhouse client command is executed to connect to the ClickHouse server, the following error is reported:
ClickHouse exception, code: 516, host: 192.168.0.198, port: 8443; Code: 516, e.displayText() = DB::Exception: clickDevelopuser: Authentication failed: password is incorrect or there is no user with such name
Fault Locating
The username or password used for connecting the ClickHouse server is incorrect.
Procedure
Enter the correct username or password .
Parent topic: Client Usage
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