Help Center> Data Warehouse Service> Developer Guide> Setting GUC Parameters> HA Replication> Primary Server
Primary Server
enable_mix_replication
Parameter description: Specifies how WAL logs and data are replicated between primary, standby, and secondary nodes.
Type: INTERNAL (fixed parameter, which can be viewed but not modified)
Value range: Boolean
- on indicates that the WAL log and data page mixed replication mode is enabled.
- off indicates that the WAL log and data page mixed replication mode is disabled.
Default value: off
This parameter is an INTERNAL parameter and cannot be modified in normal service scenarios. That is, the WAL log and data page mixed replication mode is disabled.
enable_data_replicate
Parameter description: Specifies the data synchronization mode between the primary and standby servers when data is imported to row-store tables in a database.
Type: USERSET
Value range: Boolean
- on indicates that data pages are used for the data synchronization between the primary and standby servers when data is imported to row-store tables in a database. This parameter cannot be set to on if replication_type is set to 1.
- off indicates that the primary and standby servers synchronize data using Xlogs while the data is imported to a row-store table.
Default value: on
Parent topic: HA Replication
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