功能
INFORMATION_SCHEMA.META_CLUSTER_SCHEDULE_CONFIGS用于展示 MC 调度参数。字段说明
字段名 | 类型 | 描述 |
config_key | varchar(64) | 参数名。 |
config_value | varchar(64) | 参数值。 |
default | varchar(64) | 默认值。 |
unit | varchar(64) | 单位。 |
adjustable | varchar(64) | 是否动态可调。 |
constraint_type | varchar(64) | 约束类型，如 section、enum。 |
constraint_enum | varchar(64) | enum 列表。 |
constraint_range_min | varchar(64) | section 范围区间最小值。 |
constraint_range_max | varchar(64) | section 范围区间最大值。 |
示例
tdsql>select * from information_schema.meta_cluster_schedule_configs limit 10;+------------------------------------------+--------------+--------------+------+------------+-----------------+----------------------------+----------------------+----------------------+| config_key | config_value | default | unit | adjustable | constraint_type | constraint_enum | constraint_range_min | constraint_range_max |+------------------------------------------+--------------+--------------+------+------------+-----------------+----------------------------+----------------------+----------------------+| split-rep-group-job-timeout | 600 | 600 | s | 1 | section | | 13 | 604800 || advance-global-earliest-snapshot-enabled | 1 | 1 | | 1 | enum | 0,1 | 13 | 604800 || min-keys-read | 128 | 128 | | 1 | section | | 1 | 18446744073709551615 || max-table-count-per-replication-group | 100 | 100 | | 1 | section | | 1 | 10000 || replay-job-log-timestamp-guard-interval | 3 | 3 | s | 1 | section | | 1 | 86400 || rebalance-leader-mode | leader-count | leader-count | | 1 | enum | hot-rep-group,leader-count | 1 | 86400 || check-flush-route-interval | 300 | 10 | s | 1 | section | | 1 | 36000 || raw-socket-handshake-timeout | 1000 | 1000 | ms | 1 | section | | 500 | 2000 || update-hot-data-objects-interval | 15 | 15 | s | 1 | section | | 5 | 600 || low-space-ratio | 0.95 | 0.95 | | 1 | section | | 0.25 | 0.99 |+------------------------------------------+--------------+--------------+------+------------+-----------------+----------------------------+----------------------+----------------------+10 rows in set (0.01 sec)
