SQL Server error code
SQL Server error 988
SQL Server raises error 988 at severity 14, which marks a problem with the query or data that you can correct.
Unable to access database '%.*ls' because it lacks a quorum of nodes for high availability. Try the operation again later.
| Msg | 988 |
|---|---|
| Name | DB_HADRON_DATABASE_NO_QUORUM |
| Severity | 14 |
| Group | 0–999 |
What it means
The REQUIRED_SYNCHRONIZED_SECONDARIES_TO_COMMIT setting enforces that the primary replica must wait for a specified number of synchronous secondary replicas to harden each transaction before committing. If the required number of replicas isn't online, connected, and synchronized, you might encounter the following issues, which lead to blocking or failure scenarios that trigger error 988.
The primary replica can't complete commits. - A database being added can't complete the join process, as secondaries aren't yet participating.