tianhui5 edited a comment on issue #7129:
URL:
https://github.com/apache/incubator-doris/issues/7129#issuecomment-1038570176
The limit of operation frequency is developed in #7474 , user can config the
threshold through frontend config like below:
`ADMIN SET FRONTEND CONFIG ('key' = 'value')`
You can limit the query number(`max_running_query_num`) in certain period
(`report_stats_period`), the default period is 10 second(10 * 1000). And you
can also limit the load number through `max_running_txn_num`.
The design of this feature is clear:
Each FE keeps its query number locally, and reports the query number to
Master every period, So every FE can get the query number in each FE through
metadata synchronize. When there is a query arrive, if the total query number
in last period exceeds threshold, the system reject the query. User can only
query in next period.
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