space-level-metrics (#1038)

docs-2.0/nebula-dashboard-ent/4.cluster-operator/2.monitor.md

@@ -1,6 +1,6 @@
 # Cluster monitoring
 
-This topic introduces node monitoring and service monitoring of Dashboard.
+This topic introduces node monitoring, service monitoring, and graph space monitoring of Dashboard.
 
 ## Node
 
@@ -29,5 +29,16 @@ On this page, you can view the information of Graph, Meta, and Storage services
  ![service](../figs/ds-005.png)
  - By default, you can view the monitoring data of the latest 1 hour, 6 hours, 12 hours, 1 day, 3 days, 7days, or 14 days.
  - You can select the machine and monitoring metrics that you want to view. For details of monitoring metrics, see [Monitor parameter](../7.monitor-parameter.md).
+ - The Graph service supports a set of space-level metrics. For more information, see the following section **Graph space**.
  - You can set a base line as a reference standard.
  - You can view the status of the current service.
+
+## Graph space
+
+!!! note
+
+ Before using graph space metrics, you need to set `enable_space_level_metrics` to `true` in the Graph service. For details, see [Update config](4.manage.md).
+
+ Space graph metrics record the information of different graph spaces separately. Currently, only the Graph service supports a set of space-level metrics.
+
+Only when the behavior of a graph space metric is triggered, you can specify the graph space to view information about the corresponding graph space metric. For information about the space graph metrics, see [Space graph](../7.monitor-parameter.md).

docs-2.0/nebula-dashboard-ent/7.monitor-parameter.md

@@ -136,3 +136,21 @@ The period is the time range of counting metrics. It currently supports 5 second
 | num_vertices_deleted | The number of deleted vertices. |
 | num_vertices_inserted | The number of inserted vertices. |
 | transfer_leader_latency_us | The latency of transferring the raft leader. |
+
+
+### Graph space
+
+| Parameter | Description |
+| ---------------------------------------------- | ----------------------------------------- |
+| num_active_queries | The number of queries currently being executed. |
+| num_aggregate_executors | The number of executions for the Aggregation operator. |
+| num_indexscan_executors | The number of executions for index scan operators. |
+| num_killed_queries | The number of killed queries. |
+| num_queries | The number of queries. |
+| num_query_errors_leader_changes | The number of raft leader changes due to query errors. |
+| num_query_errors | The number of query errors. |
+| num_sentences | The number of statements received by the Graphd service. |
+| num_slow_queries | The number of slow queries. |
+| num_sort_executors | The number of executions for the Sort operator. |
+| optimizer_latency_us | The latency of executing optimizer statements. |
+| query_latency_us | The average latency of queries. |

docs-2.0/nebula-dashboard/4.use-dashboard.md

@@ -24,6 +24,8 @@ Machine consists of the following parts:
 
  - You can choose the machine and monitoring metrics that you want to check. For more information, see [monitor parameter](6.monitor-parameter.md).
 
+ - The Graph service supports a set of graph space metrics. For details, see [Graph space](../nebula-dashboard-ent/4.cluster-operator/2.monitor.md).
+
  - You can set a base line as a reference.
 
  ![Machine](machine.png)

docs-2.0/nebula-dashboard/6.monitor-parameter.md

@@ -136,3 +136,21 @@ The period is the time range of counting metrics. It currently supports 5 second
 | num_vertices_deleted | The number of deleted vertices. |
 | num_vertices_inserted | The number of inserted vertices. |
 | transfer_leader_latency_us | The latency of transferring the raft leader. |
+
+
+### Graph space
+
+| Parameter | Description |
+| ---------------------------------------------- | ----------------------------------------- |
+| num_active_queries | The number of queries currently being executed. |
+| num_aggregate_executors | The number of executions for the Aggregation operator. |
+| num_indexscan_executors | The number of executions for index scan operators. |
+| num_killed_queries | The number of killed queries. |
+| num_queries | The number of queries. |
+| num_query_errors_leader_changes | The number of raft leader changes due to query errors. |
+| num_query_errors | The number of query errors. |
+| num_sentences | The number of statements received by the Graphd service. |
+| num_slow_queries | The number of slow queries. |
+| num_sort_executors | The number of executions for the Sort operator. |
+| optimizer_latency_us | The latency of executing optimizer statements. |
+| query_latency_us | The average latency of queries. |