group_replication_get_write_concurrency()

Check the maximum number of consensus instances that a group can execute in parallel.

Syntax:

INT group_replication_get_write_concurrency()

This function has no parameters.

Return value:

The maximum number of consensus instances currently set for the group.

Example:

SELECT group_replication_get_write_concurrency()

For more information, see Section 18.4.1.3, “Using Group Replication Group Write Consensus”.

group_replication_set_write_concurrency()

Configures the maximum number of consensus instances that a group can execute in parallel. The GROUP_REPLICATION_ADMIN privilege is required to use this UDF.

Syntax:

STRING group_replication_set_write_concurrency(instances)

Arguments:

Return value:

Any resulting error as a string.

Example:

SELECT group_replication_set_write_concurrency(instances);

For more information, see Section 18.4.1.3, “Using Group Replication Group Write Consensus”.