Preflight checks for ClickHouse

TL;DR

Before running the ClickHouse crawler, you can run preflight checks to perform the necessary technical validations.

Before running the ClickHouse crawler, you can run preflight checks to perform the necessary technical validations. The following preflight checks are completed:

Connection test

✅ Connection test passed

❌ Connection test failed: <error message>

Validates that Atlan can establish a connection to your ClickHouse instance using the provided host, port, and credentials.

✅ System tables access check passed

❌ System tables access check failed: <error message>

Validates that the configured user has SELECT access to system.tables, which is required for extracting table and view metadata.

✅ Database access check passed

❌ Database access check failed: <error message>

Validates that the configured user has SELECT access to system.databases, which is required for discovering available databases.

✅ Column metadata access check passed

❌ Column metadata access check failed: <error message>

Validates that the configured user has SELECT access to system.columns, which is required for extracting column-level metadata.