This topic describes the ROUTE_POLICY diagnostic point.
The ROUTE_POLICY diagnostic point records routing information based on the routing strategy. The following table describes the diagnostic information at the ROUTE_POLICY diagnostic point.
Field |
Description |
Remarks |
|---|---|---|
| chosen_route_type | The routing type. | N/A |
| route_policy | The routing strategy. | The default value is READONLY_ZONE_FIRST. You can specify the routing strategy by using the ob_route_policy session variable. OBServer nodes have different priorities in different routing strategies. |
| replica | The address of the logical data center (IDC). | For more information about LDC, see Strategy-based routing. |
| idc_type | The relationship between the replica location and OceanBase Database Proxy (ODP). | Valid values: SAME_IDC, SAME_REGION, and REMOTE. |
| zone_type | The type of the zone where the replica resides. | Valid values: READWRITE and READONLY. |
| role | The role of the replica. | Valid values: LEADER and FOLLOWER. |
| type | The type of the replica. | The replica can be a full-featured replica, backup replica, or log replica. For more information, see Partition replica type in OceanBase Database documentation. |
| is_dup_replica | Indicates whether the replica is a replication table. | Valid values: DUP and -. For more information about replication tables, see Create a table in OceanBase Database documentation. |
| is_merging | Indicates whether the replica is in a major compaction. | Valid values: UNMERGE (major compaction in progress) and MERGE (major compaction completed). For more information about major compactions, see Major compaction in OceanBase Database documentation. |
| is_partition_server | Indicates whether the replica is a partitioned table. | Valid values: PARTITION and NONPARTITION. |
| is_force_congested | Indicates whether to ignore the situation if the replica is in the blocklist. | N/A |
| proxy_idc_name | The name of the lDC for LDC-based routing in ODP. | For more information about LDC-based routing, see Strategy-based routing. This value is the same as the value of proxy_idc_name in ODP. |
| cluster_primary_zone | The primary zone of the cluster. | For more information about the primary zone, see Traffic distribution in OceanBase Database documentation. |
| proxy_primary_zone | The primary zone specified in ODP. | The value is the same as that of the ODP parameter proxy_primary_zone_name. |
| session_consistency | The read consistency level. | The value is the same as that of the ob_read_consistency system variable of OceanBase Database. |
| trans_consistency | The transaction consistency. | For more information about transaction consistency, see Weak consistency read in OceanBase Database documentation. |