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META_CLUSTER_NODES

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마지막 업데이트 시간: 2026-02-10 11:06:29

Function
INFORMATION_SCHEMA.META_CLUSTER_NODES displays metadata of nodes within the instance.
Field Description
Field Name
Type
Description
node_id
bigint unsigned
Node ID.
node_name
varchar(64)
Node Name.
conn_id
int unsigned
ID of the Node Connection.
rpc_addr
varchar(64)
RPC Address.
sql_addr
varchar(64)
SQL Address.
node_term
bigint unsigned
Node Term.
node_version
varchar(64)
Version Number of the Node
node_state
varchar(64)
Node status.
capacity
bigint unsigned
Node capacity.
available
bigint unsigned
Available amount of the node.
leader_count
int
Number of Leader Nodes.
learner_count
int
Number of Learner Nodes.
rep_group_count
int
Number of Node RGs.
leader_size
bigint
Space Used by Leader-Type Replicas.
learner_size
bigint
Space Used by Learner-Type Replicas.
rep_group_size
bigint
Space Used by All Types of Replicas.
last_report_time
varchar(64)
Last reported time of TDStore heartbeat on the node.
global_earliest_snapshot
bigint unsigned
Earliest time of global snapshot.
local_earliest_snapshot
bigint unsigned
Earliest time of TDStore snapshot on this node.
engine_local_earliest_snapshot
bigint unsigned	
Earliest time of SQLEngine snapshot on this node.
engine_last_report_time
varchar(64)
Last reported time of SQLEngine heartbeat on the node.
leader_weight
double
Leader Weight.
replica_weight
double
Replica Weight.
node_labels
longblob
Node Tag.
Examples
tdsql>select * from information_schema.meta_cluster_nodes limit 1\\G
*************************** 1. row ***************************
                       node_id: 1
                     node_name: node-tdsql3-86ea1ffe-001
                       conn_id: 1
                      rpc_addr: 10.0.36.9:6005
                      sql_addr: 10.0.36.9:6008
                     node_term: 28924771945152603
                  node_version: sqlengine-18.1.0
                    node_state: NODE_STATE_UP
                      capacity: 21474836480
                     available: 8415584256
                  leader_count: 0
                 learner_count: 0
               rep_group_count: 2
                   leader_size: 0
                  learner_size: 0
                rep_group_size: 9730233
              last_report_time: 2024-08-19 17:10:46.312314
      global_earliest_snapshot: 28924903780515894
       local_earliest_snapshot: 28924904048951464
engine_local_earliest_snapshot: 28924904048951460
       engine_last_report_time: 2024-08-19 17:10:45.042880
                 leader_weight: 1
                replica_weight: 1
                   node_labels: key: "tdsql-migrate-node-task-dst-node"
1 row in set (0.01 sec)

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피드백

Field Name	Type	Description
node_id	bigint unsigned	Node ID.
node_name	varchar(64)	Node Name.
conn_id	int unsigned	ID of the Node Connection.
rpc_addr	varchar(64)	RPC Address.
sql_addr	varchar(64)	SQL Address.
node_term	bigint unsigned	Node Term.
node_version	varchar(64)	Version Number of the Node
node_state	varchar(64)	Node status.
capacity	bigint unsigned	Node capacity.
available	bigint unsigned	Available amount of the node.
leader_count	int	Number of Leader Nodes.
learner_count	int	Number of Learner Nodes.
rep_group_count	int	Number of Node RGs.
leader_size	bigint	Space Used by Leader-Type Replicas.
learner_size	bigint	Space Used by Learner-Type Replicas.
rep_group_size	bigint	Space Used by All Types of Replicas.
last_report_time	varchar(64)	Last reported time of TDStore heartbeat on the node.
global_earliest_snapshot	bigint unsigned	Earliest time of global snapshot.
local_earliest_snapshot	bigint unsigned	Earliest time of TDStore snapshot on this node.
engine_local_earliest_snapshot	bigint unsigned	Earliest time of SQLEngine snapshot on this node.
engine_last_report_time	varchar(64)	Last reported time of SQLEngine heartbeat on the node.
leader_weight	double	Leader Weight.
replica_weight	double	Replica Weight.
node_labels	longblob	Node Tag.

tencent cloud

TDSQL Boundless

META_CLUSTER_NODES

Function

Field Description

Examples

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