DB Discovery

Syntax

  1. SHOW DB_DISCOVERY RULES [FROM schemaName]
  3. SHOW DB_DISCOVERY TYPES [FROM schemaName]
  5. SHOW DB_DISCOVERY HEARTBEATS [FROM schemaName]

Return Value Description

DB Discovery Rule

ColumnDescription
nameRule name
data_source_namesData source name list
primary_data_source_namePrimary data source name
discover_typeDatabase discovery service type
discover_propsDatabase discovery service parameters

DB Discovery Type

ColumnDescription
nameType name
typeType category
propsType properties

DB Discovery Heartbeat

ColumnDescription
nameHeartbeat name
propsHeartbeat properties

Example

DB Discovery Rule

  1. mysql> show db_discovery rules;
  2. +------------+-------------------+--------------------------+------------------------------------------------------------------+------------------------------------------------------------------+
  3. | name       | data_source_names | primary_data_source_name | discovery_type                                                   | discovery_heartbeat                                              |
  4. +------------+-------------------+--------------------------+------------------------------------------------------------------+------------------------------------------------------------------+
  5. | ha_group_0 | ds_0,ds_1,ds_2    |        ds_0              | {name=ha_group_0_mgr, type=mgr, props={group-name=92504d5b-6dec}} | {name=ha_group_0_heartbeat, props={keep-alive-cron=0/5 * * * * ?}} |
  6. +------------+-------------------+--------------------------+------------------------------------------------------------------+------------------------------------------------------------------+
  7. 1 row in set (0.20 sec)

DB Discovery Type

  1. mysql> show db_discovery types;
  2. +----------------+------+---------------------------+
  3. | name           | type | props                     |
  4. +----------------+------+---------------------------+
  5. | ha_group_0_mgr | mgr  | {group-name=92504d5b-6dec} |
  6. +----------------+------+---------------------------+
  7. 1 row in set (0.01 sec)

DB Discovery Heartbeat

  1. mysql> show db_discovery heartbeats;
  2. +----------------------+-------------------------------+
  3. | name                 | props                         |
  4. +----------------------+-------------------------------+
  5. | ha_group_0_heartbeat | {keep-alive-cron=0/5 * * * * ?} |
  6. +----------------------+-------------------------------+
  7. 1 row in set (0.01 sec)