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[fix](row-count-cache) use cached row count for show - #33911
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doris-robot
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Apr 19, 2024
Thank you for your contribution to Apache Doris. Since 2024-03-18, the Document has been moved to doris-website. |
morningman
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Apr 19, 2024
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run buildall |
doris-robot
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Apr 19, 2024
TPC-H: Total hot run time: 39001 ms |
doris-robot
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Apr 19, 2024
TPC-DS: Total hot run time: 184073 ms |
doris-robot
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Apr 19, 2024
ClickBench: Total hot run time: 30.27 s |
doris-robot
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Apr 19, 2024
Load test result on machine: 'aliyun_ecs.c7a.8xlarge_32C64G' |
yiguolei
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Apr 20, 2024
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PR approved by at least one committer and no changes requested. |
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PR approved by anyone and no changes requested. |
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Proposed changes
Followup #33449
Some operation, like
show tables statusmay traverse all tables and call table's getRowCount() method.This method may trigger the row count cache refresh async, and may take all executor thread and block other
query requests.
This PR change the logic, for some
showrequest likeshow table status, use a new methodgetCachedRowCount().This method will get row count from cache if present, and will not trigger cache refresh if cache miss.
Further comments
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