操作步骤

• 查询资源池的作业实时运行情况。

  1	SELECT * FROM GS_RESPOOL_RUNTIME_INFO;

  得到的结果视图如下：

  1 2 3 4 5 6 7 8 9

  nodegroup | rpname | ref_count | fast_run | fast_wait | slow_run | slow_wait -----------+--------------+-----------+----------+-----------+----------+----------- vc1 | p2 | 10 | 0 | 0 | 0 | 0 vc2 | p3 | 10 | 5 | 5 | 0 | 0 vc2 | p4 | 0 | 0 | 0 | 0 | 0 vc1 | default_pool | 0 | 0 | 0 | 0 | 0 vc2 | default_pool | 0 | 0 | 0 | 0 | 0 vc1 | p1 | 20 | 5 | 5 | 3 | 7 (6 rows)

  其中：

  1. ref_count为引用当前资源池信息的作业数，语句从进入管控到结束一直占用该计数；
  2. fast_run和slow_run为负载管理记账信息，只有管控(fast_limit/slow_limit大于0)时该值才有效；
  3. 该视图仅在CN上有效，持久化信息保存在GS_RESPOOL_RESOURCE_HISTORY中；
  4. 各字段说明详见GS_RESPOOL_RUNTIME_INFO。
• 查询资源池的资源限额和资源实时使用情况。

  1	SELECT * FROM GS_RESPOOL_RESOURCE_INFO;

  得到的结果视图如下：

  1 2 3 4 5 6 7 8 9

  nodegroup | rpname | cgroup | ref_count | fast_run | fast_wait | fast_limit | slow_run | slow_wait | slow_limit | used_cpu | cpu_limit | used_mem | estimate_mem | mem_limit |read_kbytes | write_kbytes | read_counts | write_counts | read_speed | write_speed -----------+--------------+---------------------+-----------+----------+-----------+------------+----------+-----------+------------+----------+-----------+----------+--------------+-----------+-------------+--------------+-------------+--------------+------------+------------- vc1 | p2 | DefaultClass:Rush | 10 | 0 | 0 | -1 | 0 | 0 | 10 | 9.97 | 48 | 20 | 0 | 11555 | 8 | 2880 | 1 | 360 | 1 | 589 vc2 | p3 | DefaultClass:Rush | 10 | 5 | 5 | 5 | 0 | 0 | 10 | 4.98 | 48 | 11 | 0 | 11555 | 0 | 848 | 0 | 106 | 0 | 173 vc2 | p4 | DefaultClass:Rush | 0 | 0 | 0 | -1 | 0 | 0 | 10 | 0 | 48 | 0 | 0 | 11555 | 0 | 0 | 0 | 0 | 0 | 0 vc1 | default_pool | DefaultClass:Medium | 0 | 0 | 0 | -1 | 0 | 0 | -1 | 0 | 48 | 0 | 0 | 11555 | 0 | 0 | 0 | 0 | 0 | 0 vc2 | default_pool | DefaultClass:Medium | 0 | 0 | 0 | -1 | 0 | 0 | -1 | 0 | 48 | 0 | 0 | 11555 | 0 | 0 | 0 | 0 | 0 | 0 vc1 | p1 | DefaultClass:Rush | 20 | 5 | 5 | 5 | 3 | 7 | 3 | 7.98 | 48 | 16 | 768 | 11555 | 8 | 2656 | 1 | 332 | 1 | 543 (6 rows)

  1. 该视图在CN和DN上均有效，DN上CPU、内存和IO为本DN资源消耗情况，CN上CPU、内存和IO为集群内所有DN上资源消耗的累加和；
  2. estimate_mem仅在动态负载管理情况下CN上有效，显示资源池估算内存记账情况；
  3. IO监控信息仅在enable_logical_io_statistics开启时才会记录；
  4. 各字段说明详见GS_RESPOOL_RESOURCE_INFO。

• 查询资源池的资源限额和资源历史使用情况。

  1	SELECT * FROM GS_RESPOOL_RESOURCE_HISTORY ORDER BY timestamp DESC;

  得到的结果视图如下：

  1 2 3 4 5 6 7 8 9

  timestamp | nodegroup | rpname | cgroup | ref_count | fast_run | fast_wait | fast_limit | slow_run | slow_wait | slow_limit | used_cpu | cpu_limit | used_mem | estimate_mem | mem_limit | read_kbytes | write_kbytes | read_counts | write_counts | read_speed | write_speed -------------------------------+--------------+--------------+---------------------+-----------+----------+-----------+------------+----------+-----------+------------+----------+-----------+----------+--------------+-----------+-------------+--------------+-------------+--------------+------------+------------- 2022-03-04 09:41:57.53739+08 | vc1 | p2 | DefaultClass:Rush | 10 | 0 | 0 | -1 | 0 | 0 | 10 | 9.97 | 48 | 20 | 0 | 11555 | 0 | 2320 | 0 | 290 | 0 | 474 2022-03-04 09:41:57.53739+08 | vc1 | p1 | DefaultClass:Rush | 20 | 5 | 5 | 5 | 3 | 7 | 3 | 7.98 | 48 | 16 | 768 | 11555 | 0 | 1896 | 0 | 237 | 0 | 387 2022-03-04 09:41:57.53739+08 | vc2 | default_pool | DefaultClass:Medium | 0 | 0 | 0 | -1 | 0 | 0 | -1 | 0 | 48 | 0 | 0 | 11555 | 0 | 0 | 0 | 0 | 0 | 0 2022-03-04 09:41:57.53739+08 | vc1 | default_pool | DefaultClass:Medium | 0 | 0 | 0 | -1 | 0 | 0 | -1 | 0 | 48 | 0 | 0 | 11555 | 0 | 0 | 0 | 0 | 0 | 0 2022-03-04 09:41:57.53739+08 | vc2 | p4 | DefaultClass:Rush | 0 | 0 | 0 | -1 | 0 | 0 | 10 | 0 | 48 | 0 | 0 | 11555 | 0 | 0 | 0 | 0 | 0 | 0 2022-03-04 09:41:57.53739+08 | vc2 | p3 | DefaultClass:Rush | 10 | 5 | 5 | 5 | 0 | 0 | 10 | 4.99 | 48 | 11 | 0 | 11555 | 0 | 880 | 0 | 110 | 0 | 180 2022-03-04 09:41:27.335234+08 | vc2 | p3 | DefaultClass:Rush | 10 | 5 | 5 | 5 | 0 | 0 | 10 | 4.98 | 48 | 11 | 0 | 11555 | 0 | 856 | 0 | 107 | 0 | 175

  1. 该监控信息来自资源池监控历史表，enable_user_metric_persistent开启时每30秒记录一次；
  2. 该表数据保存时间由GUC参数user_metric_retention_time控制；
  3. 各字段说明详见GS_RESPOOL_RESOURCE_HISTORY。