Ensure Cross-Shard Operations Are Appropriately Controlled

Méthode de vérification

Méthode d'audit: Revue manuelle

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On the SQLEngine run SHOW VARIABLES LIKE 'tdsql_trx_cross_shard_op_whitelist'; If the business does not require cross-shard writes the value must be READ; the default READ,WRITE is acceptable only where cross-shard writes are a documented requirement.

Méthode de correction

Méthode de correction: Recommandation ou correctif d'infrastructure

Configure the allowed operation types according to business needs, minimizing cross- shard write operations: If the business does not require cross-shard writes, set it to READ. If cross-shard writes are required, keep the default READ,WRITE.