docs: taosBenchmark add query mixed mode doc
This commit is contained in:
Alex Duan
parent
4d2b7a466f
commit
f49e7c276f
|
|
@ -385,21 +385,6 @@ Parameters related to supertable creation are configured in the `super_tables` s
|
|||
- **repeat_ts_max** : Numeric type, when composite primary key is enabled, specifies the maximum number of records with the same timestamp to be generated
|
||||
- **sqls** : Array of strings type, specifies the array of sql to be executed after the supertable is successfully created, the table name specified in sql must be prefixed with the database name, otherwise an unspecified database error will occur
|
||||
|
||||
#### tsma Configuration Parameters
|
||||
|
||||
Specify the configuration parameters for tsma in `super_tables` under `tsmas`, with the following specific parameters:
|
||||
|
||||
- **name**: Specifies the name of the tsma, mandatory.
|
||||
|
||||
- **function**: Specifies the function of the tsma, mandatory.
|
||||
|
||||
- **interval**: Specifies the time interval for the tsma, mandatory.
|
||||
|
||||
- **sliding**: Specifies the window time shift for the tsma, mandatory.
|
||||
|
||||
- **custom**: Specifies custom configuration appended at the end of the tsma creation statement, optional.
|
||||
|
||||
- **start_when_inserted**: Specifies when to create the tsma after how many rows are inserted, optional, default is 0.
|
||||
|
||||
#### Tag and Data Column Configuration Parameters
|
||||
|
||||
|
|
@ -477,6 +462,11 @@ For other common parameters, see Common Configuration Parameters.
|
|||
|
||||
Configuration parameters for querying specified tables (can specify supertables, subtables, or regular tables) are set in `specified_table_query`.
|
||||
|
||||
- **mixed_query** "yes": `Mixed Query` "no": `Normal Query`, default is "no"
|
||||
`Mixed Query`: All SQL statements in `sqls` are grouped by the number of threads, with each thread executing one group. Each SQL statement in a thread needs to perform `query_times` queries.
|
||||
`Normal Query `: Each SQL in `sqls` starts `threads` and exits after executing `query_times` times. The next SQL can only be executed after all previous SQL threads have finished executing and exited.
|
||||
Regardless of whether it is a `Normal Query` or `Mixed Query`, the total number of query executions is the same. The total number of queries = `sqls` * `threads` * `query_times`. The difference is that `Normal Query` starts `threads` for each SQL query, while ` Mixed Query` only starts `threads` once to complete all SQL queries. The number of thread startups for the two is different.
|
||||
|
||||
- **query_interval** : Query interval, in seconds, default is 0.
|
||||
|
||||
- **threads** : Number of threads executing the SQL query, default is 1.
|
||||
|
|
@ -487,7 +477,8 @@ Configuration parameters for querying specified tables (can specify supertables,
|
|||
|
||||
#### Configuration Parameters for Querying Supertables
|
||||
|
||||
Configuration parameters for querying supertables are set in `super_table_query`.
|
||||
Configuration parameters for querying supertables are set in `super_table_query`.
|
||||
The thread mode of the super table query is the same as the `Normal Query` mode of the specified query statement described above, except that `sqls` is filled all sub tables.
|
||||
|
||||
- **stblname** : The name of the supertable to query, required.
|
||||
|
||||
|
|
|
|||
|
|
@ -372,7 +372,8 @@ INFO: Consumed total msgs: 3000, total rows: 30000000
|
|||
查询场景下 `filetype` 必须设置为 `query`。
|
||||
`query_times` 指定运行查询的次数，数值类型
|
||||
|
||||
查询场景可以通过设置 `kill_slow_query_threshold` 和 `kill_slow_query_interval` 参数来控制杀掉慢查询语句的执行，threshold 控制如果 exec_usec 超过指定时间的查询将被 taosBenchmark 杀掉，单位为秒；interval 控制休眠时间，避免持续查询慢查询消耗 CPU ，单位为秒。
|
||||
查询场景可以通过设置 `kill_slow_query_threshold` 和 `kill_slow_query_interval` 参数来控制杀掉慢查询语句的执行，threshold 控制如果 exec_usec 超过指定时间的查询将被 taosBenchmark 杀掉，单位为秒；
|
||||
interval 控制休眠时间，避免持续查询慢查询消耗 CPU ，单位为秒。
|
||||
|
||||
其它通用参数详见[通用配置参数](#通用配置参数)。
|
||||
|
||||
|
|
@ -380,6 +381,11 @@ INFO: Consumed total msgs: 3000, total rows: 30000000
|
|||
|
||||
查询指定表（可以指定超级表、子表或普通表）的配置参数在 `specified_table_query` 中设置。
|
||||
|
||||
- **mixed_query** : 查询模式，取值 “yes” 为`混合查询`， "no" 为`正常查询` , 默认值为 “no”
|
||||
`混合查询`：`sqls` 中所有 sql 按 `threads` 线程数分组，每个线程执行一组， 线程中每个 sql 都需执行 `query_times` 次查询
|
||||
`正常查询`：`sqls` 中每个 sql 启动 `threads` 个线程，每个线程执行完 `query_times` 次后退出，下个 sql 需等待上个 sql 线程全部执行完退出后方可执行
|
||||
不管 `正常查询` 还是 `混合查询` ，执行查询总次数是相同的 ，查询总次数 = `sqls` 个数 * `threads` * `query_times`， 区别是 `正常查询` 每个 sql 都会启动 `threads` 个线程，而 `混合查询` 只启动一次 `threads` 个线程执行完所有 SQL, 两者启动线程次数不一样。
|
||||
|
||||
- **query_interval** : 查询时间间隔，单位是秒，默认值为 0。
|
||||
|
||||
- **threads** : 执行查询 SQL 的线程数，默认值为 1。
|
||||
|
|
@ -390,7 +396,8 @@ INFO: Consumed total msgs: 3000, total rows: 30000000
|
|||
|
||||
#### 查询超级表的配置参数
|
||||
|
||||
查询超级表的配置参数在 `super_table_query` 中设置。
|
||||
查询超级表的配置参数在 `super_table_query` 中设置。
|
||||
超级表查询的线程模式与上面介绍的指定查询语句查询的 `正常查询` 模式相同，不同之处是本 `sqls` 使用所有子表填充。
|
||||
|
||||
- **stblname** : 指定要查询的超级表的名称，必填。
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue