マネジメントコンソールから [Amazon Redshift]-[Clusters]-[クラスターを選択]-[Query Monitoring]-[Workload concurrency]-[Concurrency scaling usage] で確認できる。
sampledb=# select * from SVCS_CONCURRENCY_SCALING_USAGE limit 10; start_time | end_time | queries | usage_in_seconds ----------------------------+----------------------------+---------+------------------ 2022-10-01 03:03:38.159429 | 2022-10-01 03:06:10.072369 | 1519 | 152 2022-10-01 03:03:38.535923 | 2022-10-01 03:05:32.069176 | 1192 | 114 2022-10-01 03:03:38.672645 | 2022-10-01 03:04:01.465433 | 117 | 23 2022-10-01 03:04:01.580109 | 2022-10-01 03:04:49.534143 | 508 | 48 2022-10-01 03:04:50.254543 | 2022-10-01 03:05:55.73886 | 665 | 66 2022-10-01 03:05:32.233043 | 2022-10-01 03:06:16.023838 | 481 | 44 2022-10-01 03:05:55.814752 | 2022-10-01 03:06:05.200997 | 93 | 10 2022-10-01 03:06:05.496292 | 2022-10-01 03:06:41.31488 | 387 | 36 2022-10-01 03:06:10.215507 | 2022-10-01 03:07:35.445018 | 868 | 86 2022-10-01 03:06:16.031618 | 2022-10-01 03:09:57.910725 | 2495 | 222 (10 rows)
クラスター単位で1日1時間まで無料、使わないと最大30時間まで無料利用時間が貯まる。