RUNTIME_METRICS
RUNTIME_METRICS表提供系统运行时指标。它包括集群中/metrics HTTP端点输出的所有指标。
USE INFORMATION_SCHEMA;
SELECT * FROM RUNTIME_METRICS;
结果如下：
+------------------------------------------------------+------------------------+--------------------------------------------------------+---------+-----------+----------------------------+
| metric_name | value | labels | node | node_type | timestamp |
+------------------------------------------------------+------------------------+--------------------------------------------------------+---------+-----------+----------------------------+
| greptime_app_version | 1 | short_version=0.7.1, version=greptimedb-main-92a8e86 | unknown | unknown | 2024-03-27 22:43:12.898000 |
| greptime_catalog_catalog_count | 1 | | unknown | unknown | 2024-03-27 22:43:12.898000 |
| greptime_catalog_schema_count | 2 | | unknown | unknown | 2024-03-27 22:43:12.898000 |
| greptime_meta_create_catalog_bucket | 1 | le=0.005 | unknown | unknown | 2024-03-27 22:43:12.898000 |
| greptime_meta_create_catalog_bucket | 1 | le=0.01 | unknown | unknown | 2024-03-27 22:43:12.898000 |
| greptime_meta_create_catalog_bucket | 1 | le=0.025 | unknown | unknown | 2024-03-27 22:43:12.898000 |
| greptime_meta_create_catalog_bucket | 1 | le=0.05 | unknown | unknown | 2024-03-27 22:43:12.898000 |
| greptime_meta_create_catalog_bucket | 1 | le=0.1 | unknown | unknown | 2024-03-27 22:43:12.898000 |
| greptime_meta_create_catalog_bucket | 1 | le=0.25 | unknown | unknown | 2024-03-27 22:43:12.898000 |
| greptime_meta_create_catalog_bucket | 1 | le=0.5 | unknown | unknown | 2024-03-27 22:43:12.898000 |
| greptime_meta_create_catalog_bucket | 1 | le=1 | unknown | unknown | 2024-03-27 22:43:12.898000 |
| greptime_meta_create_catalog_bucket | 1 | le=2.5 | unknown | unknown | 2024-03-27 22:43:12.898000 |
| greptime_meta_create_catalog_bucket | 1 | le=5 | unknown | unknown | 2024-03-27 22:43:12.898000 |
| greptime_meta_create_catalog_bucket | 1 | le=10 | unknown | unknown | 2024-03-27 22:43:12.898000 |
| greptime_meta_create_catalog_bucket | 1 | le=+Inf | unknown | unknown | 2024-03-27 22:43:12.898000 |
| greptime_meta_create_catalog_sum | 0.000290333 | | unknown | unknown | 2024-03-27 22:43:12.898000 |
| greptime_meta_create_catalog_count | 1 | | unknown | unknown | 2024-03-27 22:43:12.898000 |
| greptime_meta_create_catalog_counter | 1 | | unknown | unknown | 2024-03-27 22:43:12.898000 |
| greptime_meta_create_schema_bucket | 3 | le=0.005 | unknown | unknown | 2024-03-27 22:43:12.898000 |
| greptime_meta_create_schema_bucket | 3 | le=0.01 | unknown | unknown | 2024-03-27 22:43:12.898000 |
| greptime_meta_create_schema_bucket | 3 | le=0.025 | unknown | unknown | 2024-03-27 22:43:12.898000 |
| greptime_meta_create_schema_bucket | 3 | le=0.05 | unknown | unknown | 2024-03-27 22:43:12.898000 |
| greptime_meta_create_schema_bucket | 3 | le=0.1 | unknown | unknown | 2024-03-27 22:43:12.898000 |
| greptime_meta_create_schema_bucket | 3 | le=0.25 | unknown | unknown | 2024-03-27 22:43:12.898000 |
| greptime_meta_create_schema_bucket | 3 | le=0.5 | unknown | unknown | 2024-03-27 22:43:12.898000 |
...
结果中的列：
metric_name：指标名称。value：指标值。labels：指标标签和值，用,分隔。node:指标来自哪个节点node_type：节点类型，如datanode、frontend等。timestamp：指标时间戳